This document reviews the use of ferrocement panels as high-strength face sheets in lightweight sandwich concrete slabs. Ferrocement panels consist of thin cement mortar reinforced with closely spaced steel wire mesh. They possess high strength and bending ability. The document discusses previous research using ferrocement panels to encase aerated concrete as a lightweight core material. It also describes the materials, manufacturing process, and testing of sample slabs with different ferrocement panel configurations.
IRJET- Study on Mechanical Properties of Steel Fibre Reinforced ConcreteIRJET Journal
This study investigated the mechanical properties of steel fibre reinforced concrete. Steel fibres with a diameter of 1mm, length of 50mm, and aspect ratio of 50 were added to concrete mixes in volumes of 0%, 0.15%, 0.3%, 0.45%, and 0.6%. Tests were conducted to determine the workability via slump test, compressive strength via cube testing, and splitting tensile strength via cylinder testing of the various mixes. The results were then compared to determine the effect of adding steel fibres on the mechanical properties of concrete.
STUDY ON THE MECHANICAL PROPERTIES AND MICROSTRUCTURE OF CHOPPED CARBON FIBER...IAEME Publication
As compared to conventional concrete the benefits of SCC comprising more strength like non SCC, may be higher due to better compaction, similar tensile strength like non SCC, modulus of elasticity may be slightly lower because of higher paste, slightly higher creep due to paste, shrinkage as normal concrete, better bond strength, fire resistance similar as non SCC, durability better for better surface concrete. Incorporation of fibers further enhances its properties specially related to post crack behavior of SCC. The fibers used in the study are 12 mm long chopped glass fiber and carbon fiber. The volume fraction of fiber taken is 0%, 0.1%, 0.15%, 0.2%. The project comprised of two stages.
Precast construction techniques have gained huge popularity in the recent times
due to rapid construction, excellent quality control, lesser site labour costs and more
overall savings. In the current scenario, the most advanced type of prestressed
construction is the manufacture of prestressed hollow core slab construction, which
essentially consists of huge prestressed concrete panel units cast to the required slab
dimensions. The construction is associated with the requirement of huge machinery
for transportation, hoisting and placing operations. In the present study, a partially
prestressed slab of dimensions 4000 mm × 600 mm × 120 mm was designed and cast.
An RCC slab was also designed for comparing the behaviour of the prestressed
hollow slab. The present study discussed about the flexural behaviour of pretensioned
prestressed concrete hollow slab. The slab which was designed for this study
consisted of three hollow cores, each having a diameter of three centimeters. A
special mould was designed for casting, which was capable of withstanding huge
prestressing forces. The hollow core provided within the specimen is an excellent
method to improve material savings, thermal and sound insulation properties, besides
being a provision for mechanical runs. The slab was cast and experimentally tested by
subjecting it to uniformly distributed loads using sand bags to study the flexural
behaviour of the slab.
IRJET- Experimental Study of Structural Behaviour of Double Skin Hollow –...IRJET Journal
This document summarizes an experimental study on the structural behavior of double skin hollow concrete filled steel tubular (DSH-CFST) columns under axial compressive loading. 36 specimens were tested with varying hollowness ratios. Test results showed that DSH-CFST columns can provide higher strength and ductility than solid CFST columns. Stress-strain curves and load-deformation curves were compared for different specimen types. The study found that DSH-CFST columns exhibited up to 77% higher compressive stresses than solid CFST columns. DSH-CFST columns also demonstrated improved ductility compared to solid CFST columns. The results provide information on optimizing the strength and structural performance of DSH-CFST columns
IRJET- An Experimental Study on Structural Behaviour Hybrid Fibre Reinforced ...IRJET Journal
This document summarizes an experimental study on the structural behavior of hybrid fiber reinforced concrete. The study used a combination of steel fibers and glass fibers added to concrete mixtures. Steel fiber volume was kept constant at 1% while glass fiber volume was varied at 1%, 3%, 5%, and 7%. Tests were performed to determine the workability, compressive strength, flexural strength, and split tensile strength of the hybrid fiber concrete mixtures. The results showed that the hybrid fiber concrete achieved higher strengths than normal concrete without fibers. Therefore, adding a combination of steel and glass fibers improved the mechanical properties of the concrete. Further research is needed to optimize the fiber mixtures and properties.
IRJET- Experimental Study on Mesh Confined Concrete Subjected to High Tempera...IRJET Journal
This document presents an experimental study on the effects of high temperature on mesh confined concrete. Concrete cylinders with and without different mesh confinements were cast and subjected to a temperature of 300°C. The specimens were then cooled using two methods and tested to determine their mechanical properties. The study found that specimens with GI weld mesh confinement had higher strength, energy absorption and stiffness after exposure to high temperature compared to conventional concrete specimens without mesh confinement. Specimens cooled through air drying also performed better than those cooled through quenching. The GI weld mesh confined concrete showed improved properties like load carrying capacity and deformation resistance after exposure to high temperature.
The document experimentally investigates using steel slag to replace coarse aggregates in concrete. Steel slag is a byproduct of steel production that can potentially be used in concrete production. The study replaced coarse aggregates with steel slag at rates of 50%, 60%, and 70% by weight. Concrete cubes were cast using different slag replacement rates and tested for compressive strength up to 28 days. The results showed that steel slag can be used to replace coarse aggregates at high rates while still maintaining adequate compressive strengths for structural concrete.
To Study the Properties of Latex Modified Steel Fibre Reinforced Concretepaperpublications3
Abstract: This journal documents the effects of using steel fibres in Styrene Butadiene Rubber (SBR) latex modified concrete. The study was carried out to record the different properties of steel fibre reinforced latex modified concrete such as compressive strength, split tensile strength and flexural strength. Latex modified concrete is defined as Portland cement and aggregate combined at the time of mixing with polymers that are dispersed in water. This dispersion is called as latex. Polymer when used as an admixture can improve properties like higher strength and lower water permeability than the conventional concrete. Since, concrete is weak in tension, steel fibres have been added to concrete, to improve its characteristics in tension. The polymer concrete specimens with and without fibres and latex were cast and tested to watch the improvement of certain mechanical and physical properties like compressive strengths, tensile strengths, flexural strengths and workability. Styrene Butadiene Rubber Latex polymer and hooked end steel fibres have been used for our study. The percentage of steel fibre used were 0%,0.5%,0.75%,1%,1.25% at an interval of 0.25%. The fraction of steel fibre which gave the best result was taken and latex was varied in percentage 5%, 10%, 15% to obtain maximum strength. In all total 24 specimen cubes (150mm X 150 mm X 150 mm), 24 beam (500mm X 100mm X 100mm) and 24 cylinder specimens (150 mm X 300 mm) were made. The hardened properties of concrete were tested at 28th days.
IRJET- Study on Mechanical Properties of Steel Fibre Reinforced ConcreteIRJET Journal
This study investigated the mechanical properties of steel fibre reinforced concrete. Steel fibres with a diameter of 1mm, length of 50mm, and aspect ratio of 50 were added to concrete mixes in volumes of 0%, 0.15%, 0.3%, 0.45%, and 0.6%. Tests were conducted to determine the workability via slump test, compressive strength via cube testing, and splitting tensile strength via cylinder testing of the various mixes. The results were then compared to determine the effect of adding steel fibres on the mechanical properties of concrete.
STUDY ON THE MECHANICAL PROPERTIES AND MICROSTRUCTURE OF CHOPPED CARBON FIBER...IAEME Publication
As compared to conventional concrete the benefits of SCC comprising more strength like non SCC, may be higher due to better compaction, similar tensile strength like non SCC, modulus of elasticity may be slightly lower because of higher paste, slightly higher creep due to paste, shrinkage as normal concrete, better bond strength, fire resistance similar as non SCC, durability better for better surface concrete. Incorporation of fibers further enhances its properties specially related to post crack behavior of SCC. The fibers used in the study are 12 mm long chopped glass fiber and carbon fiber. The volume fraction of fiber taken is 0%, 0.1%, 0.15%, 0.2%. The project comprised of two stages.
Precast construction techniques have gained huge popularity in the recent times
due to rapid construction, excellent quality control, lesser site labour costs and more
overall savings. In the current scenario, the most advanced type of prestressed
construction is the manufacture of prestressed hollow core slab construction, which
essentially consists of huge prestressed concrete panel units cast to the required slab
dimensions. The construction is associated with the requirement of huge machinery
for transportation, hoisting and placing operations. In the present study, a partially
prestressed slab of dimensions 4000 mm × 600 mm × 120 mm was designed and cast.
An RCC slab was also designed for comparing the behaviour of the prestressed
hollow slab. The present study discussed about the flexural behaviour of pretensioned
prestressed concrete hollow slab. The slab which was designed for this study
consisted of three hollow cores, each having a diameter of three centimeters. A
special mould was designed for casting, which was capable of withstanding huge
prestressing forces. The hollow core provided within the specimen is an excellent
method to improve material savings, thermal and sound insulation properties, besides
being a provision for mechanical runs. The slab was cast and experimentally tested by
subjecting it to uniformly distributed loads using sand bags to study the flexural
behaviour of the slab.
IRJET- Experimental Study of Structural Behaviour of Double Skin Hollow –...IRJET Journal
This document summarizes an experimental study on the structural behavior of double skin hollow concrete filled steel tubular (DSH-CFST) columns under axial compressive loading. 36 specimens were tested with varying hollowness ratios. Test results showed that DSH-CFST columns can provide higher strength and ductility than solid CFST columns. Stress-strain curves and load-deformation curves were compared for different specimen types. The study found that DSH-CFST columns exhibited up to 77% higher compressive stresses than solid CFST columns. DSH-CFST columns also demonstrated improved ductility compared to solid CFST columns. The results provide information on optimizing the strength and structural performance of DSH-CFST columns
IRJET- An Experimental Study on Structural Behaviour Hybrid Fibre Reinforced ...IRJET Journal
This document summarizes an experimental study on the structural behavior of hybrid fiber reinforced concrete. The study used a combination of steel fibers and glass fibers added to concrete mixtures. Steel fiber volume was kept constant at 1% while glass fiber volume was varied at 1%, 3%, 5%, and 7%. Tests were performed to determine the workability, compressive strength, flexural strength, and split tensile strength of the hybrid fiber concrete mixtures. The results showed that the hybrid fiber concrete achieved higher strengths than normal concrete without fibers. Therefore, adding a combination of steel and glass fibers improved the mechanical properties of the concrete. Further research is needed to optimize the fiber mixtures and properties.
IRJET- Experimental Study on Mesh Confined Concrete Subjected to High Tempera...IRJET Journal
This document presents an experimental study on the effects of high temperature on mesh confined concrete. Concrete cylinders with and without different mesh confinements were cast and subjected to a temperature of 300°C. The specimens were then cooled using two methods and tested to determine their mechanical properties. The study found that specimens with GI weld mesh confinement had higher strength, energy absorption and stiffness after exposure to high temperature compared to conventional concrete specimens without mesh confinement. Specimens cooled through air drying also performed better than those cooled through quenching. The GI weld mesh confined concrete showed improved properties like load carrying capacity and deformation resistance after exposure to high temperature.
The document experimentally investigates using steel slag to replace coarse aggregates in concrete. Steel slag is a byproduct of steel production that can potentially be used in concrete production. The study replaced coarse aggregates with steel slag at rates of 50%, 60%, and 70% by weight. Concrete cubes were cast using different slag replacement rates and tested for compressive strength up to 28 days. The results showed that steel slag can be used to replace coarse aggregates at high rates while still maintaining adequate compressive strengths for structural concrete.
To Study the Properties of Latex Modified Steel Fibre Reinforced Concretepaperpublications3
Abstract: This journal documents the effects of using steel fibres in Styrene Butadiene Rubber (SBR) latex modified concrete. The study was carried out to record the different properties of steel fibre reinforced latex modified concrete such as compressive strength, split tensile strength and flexural strength. Latex modified concrete is defined as Portland cement and aggregate combined at the time of mixing with polymers that are dispersed in water. This dispersion is called as latex. Polymer when used as an admixture can improve properties like higher strength and lower water permeability than the conventional concrete. Since, concrete is weak in tension, steel fibres have been added to concrete, to improve its characteristics in tension. The polymer concrete specimens with and without fibres and latex were cast and tested to watch the improvement of certain mechanical and physical properties like compressive strengths, tensile strengths, flexural strengths and workability. Styrene Butadiene Rubber Latex polymer and hooked end steel fibres have been used for our study. The percentage of steel fibre used were 0%,0.5%,0.75%,1%,1.25% at an interval of 0.25%. The fraction of steel fibre which gave the best result was taken and latex was varied in percentage 5%, 10%, 15% to obtain maximum strength. In all total 24 specimen cubes (150mm X 150 mm X 150 mm), 24 beam (500mm X 100mm X 100mm) and 24 cylinder specimens (150 mm X 300 mm) were made. The hardened properties of concrete were tested at 28th days.
The document describes an experimental study that evaluated the flexural behavior of steel fiber reinforced high strength self-compacting concrete slabs. Six concrete slabs were tested with varying concrete types (ordinary, self-compacting, high strength self-compacting) and steel fiber volume fractions (0%, 0.75%, 1.5%). Test results found that using self-compacting concrete and adding steel fibers improved flexural resistance and led to more ductile failure. The high strength self-compacting concrete slab with 1.5% steel fibers showed the highest ultimate load capacity, an 18.8% increase over the non-fiber slab. A finite element analysis was able to reasonably model the slab test results.
IJRET : International Journal of Research in Engineering and Technology is an international peer reviewed, online journal published by eSAT Publishing House for the enhancement of research in various disciplines of Engineering and Technology. The aim and scope of the journal is to provide an academic medium and an important reference for the advancement and dissemination of research results that support high-level learning, teaching and research in the fields of Engineering and Technology. We bring together Scientists, Academician, Field Engineers, Scholars and Students of related fields of Engineering and Technology.
Behaviour of concrete beams reinforced with glass fibre reinforced polymer flatseSAT Journals
This document summarizes research on the behavior of concrete beams reinforced with glass fibre reinforced polymer (GFRP) flats. A series of beam shear tests were conducted using GFRP flats as shear reinforcement. Beams with silica coated GFRP flats showed failure at higher loads than theoretical failure loads. The GFRP flats also exhibited good ductility as shear reinforcement. Test results found that beams with GFRP flat shear reinforcement at 87mm and 110mm spacing failed at loads above theoretical predictions.
IRJET- Experimental Study on Steel Fiber-Reinforced Pervious ConcreteIRJET Journal
This document presents an experimental study on steel fiber-reinforced pervious concrete. Pervious concrete is a type of concrete with high porosity that allows water to pass through, reducing runoff. This study aims to develop an M30 grade of pervious concrete using the IS code method. Concrete mixes were prepared by replacing fine aggregate with coarse aggregate at rates of 5%, 10%, and 15% and adding crimped steel fibers at rates of 0%, 1.5%, and 2%. The compressive strength, workability, and infiltration rate of the mixes were tested and evaluated after 7 and 28 days of curing. The results showed that replacing fine aggregate at 15% and adding 2% steel fibers produced the highest compressive
This document summarizes a study on the performance of steel fibre reinforced interlocking hollow concrete blocks used as load bearing walls. The blocks were designed with interlocking ends and hollow portions to reduce weight and facilitate placement of electrical and plumbing utilities. Masonry walls were constructed using these blocks, locally available solid blocks, and hollow blocks to compare their load carrying capacities. Tests on concrete cubes, cylinders and beams with and without steel fibres showed that addition of steel fibres increased the compressive, splitting tensile and flexural strengths. Walls built with the steel fibre reinforced hollow blocks exhibited a 22% higher load carrying capacity and suffered less cracking compared to walls using solid or hollow blocks without fibres. The study concluded that these lightweight
Flexural behaviour of fibre reinforced ferrocement concreteSanthosh Jayaraman
Ferro cement
The term Ferro cement is most commonly applied to a mixture of Portland cement and sand applied over layers of woven or expanded steel mesh and closely spaced small-diameter steel rods. It can be used to form relatively thin, compound curved sheets to make hulls for boats, shell roofs, water tanks, etc. It has been used in a wide range of other applications including sculpture and prefabricated building components. The term has been applied by extension to other composite materials including some containing no cement and no ferrous material. These are better referred to by terms describing their actual contents.
Building Materials assignment 1 (Concrete)Syafiq Zariful
This document provides information on five types of building materials: ferrocement, fiber reinforced concrete, gypsum concrete, stamped concrete, and translucent concrete. It discusses the constituents, properties, advantages, disadvantages and applications of each material. Ferrocement is a reinforced cement mortar with wire mesh. It has high tensile strength and is lightweight but labor intensive. Fiber reinforced concrete includes fibers to increase toughness. Gypsum concrete uses gypsum as a binder and is used for partitions and ceilings. Stamped concrete is colored and textured to resemble other materials. Translucent concrete allows light transmission and is used for ceilings and facades.
To investigate combined influence of steel fiber and silicafume on high stren...IAEME Publication
This document investigates the combined influence of steel fiber and silica fume on the flexural strength of high-strength concrete for rigid pavement applications. Laboratory tests were conducted by casting concrete beams with varying amounts of steel fiber (0-30 kg/m3) and silica fume (5-15%). Beams were tested after 28 days to determine flexural strength. The results showed that flexural strength increased significantly with higher steel fiber content. Minimum fiber contents were tested against different silica fume percentages (5, 10, 15%) to obtain maximum flexural strength. Regression analysis was used to analyze the experimental results. The findings were then used to design pavements to determine the advantages of mixing steel fiber and sil
IRJET-Study on Strength Properties of SifconIRJET Journal
This document summarizes a study on the strength properties of Slurry Infiltrated Fiber Reinforced Concrete (SIFCON). SIFCON is a type of fiber concrete with a high fiber content (5-20% by volume) that provides high strength and ductility. The study investigated different mix proportions of SIFCON by varying the steel fiber content from 6-12% by volume. Testing showed that compressive, tensile, and flexural strength increased with higher fiber content. The 12% fiber mix achieved a 36% increase in compressive strength over conventional concrete. Based on strength and economy, 12% fiber content was found to be optimal for SIFCON. The document concludes that SIFCON is a
EFFECT OF STEEL AND POLYPROPYLENE FIBER ON MECHANICAL PROPERTIES OF CONCRETEIAEME Publication
This experimental work describes the mechanical properties of Hybrid Fibre Reinforced concrete(HFRC).HFRC is prepared by adding any two fibres to the conventional concrete to make it a composite mixture and that derives benefits from each of the added fibre and exhibits significant response. The fibres which are used in the present experimental work is steel fibres and polypropylene fibres. Here the polypropylene fibres helps in resists initial cracks and shrinkage ,steel fibres helps in increase the strength of concrete. In present work M30 grade of concrete can be prepared according to the IS 10262:2009 reference code. these steel and polypropylene fibres are added by 50% each with different hybridization from 0% to 1.5%.For calculating strength parameters specimens are casted and cured for 28 days and tested in the lab for Compressive Test, Tensile Test, Flexural test. From the present investigation the strength parameter increases with the percentage of increase in fibre. Therefore here the hybrid ratio of 1.5% gives the more result when compared to other hybrid ratio.
IJRET : International Journal of Research in Engineering and Technology is an international peer reviewed, online journal published by eSAT Publishing House for the enhancement of research in various disciplines of Engineering and Technology. The aim and scope of the journal is to provide an academic medium and an important reference for the advancement and dissemination of research results that support high-level learning, teaching and research in the fields of Engineering and Technology. We bring together Scientists, Academician, Field Engineers, Scholars and Students of related fields of Engineering and Technology
Flexural characteristics of sfrscc and sfrnc one way slabseSAT Journals
Abstract Fibre reinforced concrete with steel fibres attracted the attention of engineers and researchers during the last five decades. In recent times self-compacting concrete has been accepted as a quality product and are widely used. A large number of studies are available with respect to several parameters viz., load deflection behavior, toughness, flexural strength, ductility, effects of beam dimensions, concrete filling sequence, flexural toughness parameters, crack control etc. of fibre Reinforced Concrete. The present study aims to study the flexural behavior of SFRSCC and SFRNC slabs with steel fibres. Keywords: Self compacting concrete1, Fibre reinforced concrete2, Steel fibre reinforce normal concrete3, Steel fibre reinforce4, Self-compacting concrete5.
IJRET : International Journal of Research in Engineering and Technology is an international peer reviewed, online journal published by eSAT Publishing House for the enhancement of research in various disciplines of Engineering and Technology. The aim and scope of the journal is to provide an academic medium and an important reference for the advancement and dissemination of research results that support high-level learning, teaching and research in the fields of Engineering and Technology. We bring together Scientists, Academician, Field Engineers, Scholars and Students of related fields of Engineering and Technology.
This document summarizes research on the durability of fibre reinforced concrete. It discusses how fibres can improve the properties of concrete, including increased tensile strength and resistance to cracking. It outlines the methodology of the research, which involves testing concrete reinforced with different types and amounts of fibres, including steel, glass, natural and artificial fibres. The research examines the effect of fibres on the compressive and flexural strength of concrete beams. It also evaluates the durability of fibre reinforced concrete exposed to chloride and sulfate attacks. The results indicate that natural fibre reinforced concrete has the highest tensile strength and best durability. The research concludes that fibre reinforcement improves concrete properties and durability.
This document discusses steel fiber reinforced concrete (SFRC). SFRC increases the structural integrity of concrete by adding short, discrete steel fibers that are uniformly distributed and randomly oriented. The document outlines the materials used including cement, aggregates, water, and steel fibers. It describes the mix design process and percentages of steel fibers tested. Beams and cubes were cast with the concrete mixtures and cured before testing to determine the compressive and flexural strengths of the SFRC. The results and conclusions are summarized, with references provided.
Study of macro mechanical properties of ultra high strength concrete using qu...eSAT Publishing House
The document discusses a study on developing ultra-high strength concrete (UHSC) using locally available materials to achieve a compressive strength over 180 MPa. Various mixes were tested with different percentages of quartz powder (30-45%) and curing methods including normal water curing and hot air curing at 200°C for 1-3 days. The results showed that compressive strength increased up to 187 MPa for mixes with 40% quartz powder that were hot air cured for 1 day, compared to 116 MPa for normal water curing only. Higher quartz powder content and thermal curing improved strength through increased packing density and hydration reactions.
IRJET- Experimental Investigation of Steel Fiber Reinforced Concrete with Par...IRJET Journal
This document discusses an experimental investigation into steel fiber reinforced concrete with partial replacement of coarse aggregate by cupola slag. The following key points are discussed:
1. Steel fibers were added to concrete to improve properties like strength and ductility. Cupola slag, a byproduct from cast iron manufacturing, was used to partially replace coarse aggregate.
2. Tests were conducted to study the effect of adding hooked steel fibers and varying amounts of cupola slag on the mechanical properties of concrete, including compressive strength, split tensile strength, and flexural strength.
3. A literature review presented research on the use of steel fibers to enhance concrete properties and studies investigating the use of cupola slag as a partial replacement for
Strength and behaviour of sifcon with different types of fibersIAEME Publication
The document summarizes an experimental study on the strength and behavior of slurry infiltrated fiber concrete (SIFCON) with different types of fibers. Cube, cylinder and beam specimens were tested with steel and polypropylene fibers at 4%, 5%, and 6% volume. Compression, split tensile, and flexural tests were conducted at 7 and 28 days. Results showed that specimens with 5% fiber volume had the highest strengths for both steel and polypropylene fibers. Strengths generally decreased with 6% fiber volume. Polypropylene fiber was found to reduce crack width and density compared to steel fiber.
IRJET- Enhancing the Performance of Concrete by using Nano SilicaIRJET Journal
This document summarizes a study that investigated the effects of adding nano silica to reinforced concrete beams. The researchers created concrete cubes and beams with different percentages of nano silica added (0-2.5%) and tested their compressive and flexural strengths. They found that cubes and beams with 1.5-2% nano silica exhibited the highest strengths. Specifically, cubes with 1.5% nano silica showed around 37.6 MPa compressive strength, 37% higher than plain concrete. Beams with 1.5% nano silica also demonstrated around 17.6 MPa flexural strength for beams with stirrups and 21.1 MPa for beams with rebar only in the tension zone,
Experimental investigation on Controlled Permeable Formwork Liner in steel fi...IRJET Journal
This document summarizes an experimental study that investigated the effects of using a controlled permeable formwork (CPF) liner and adding steel fibers on the mechanical properties of M20 grade concrete. Specimens were prepared with and without CPF liner and with 0%, 1%, and 2% steel fibers by weight. At 28 days, compressive strength, split tensile strength, rebound hammer, ultrasonic pulse velocity, and water absorption tests were performed. The results showed that concrete with CPF liner and steel fibers had higher strength and durability properties compared to normal concrete without CPF liner or steel fibers. In particular, the CPF liner produced a denser, less porous surface zone in the concrete that improved its dur
Structural Behaviour of Ultra High Performance Fibre Reinforced ConcreteIRJET Journal
The document discusses the structural behavior of ultra-high performance fiber reinforced concrete (UHPFRC), specifically analyzing the effects of adding steel fibers at volumes from 0-2% on the compressive strength and load bearing capacity of UHPFRC mixes containing silica fume and quartz powder. Test results showed that UHPFRC produced greater strength than traditional concrete. Previous studies also found that UHPFRC improves the resistance and durability of reinforced concrete when used in retrofitting or laminates.
IRJET- Comparative Study on the Characteristic Behaviour of CFDSST, CFDSSAT &...IRJET Journal
The document presents a comparative study on the behavior of concrete filled double skin steel tube (CFDSST), concrete filled double skin steel aluminum tube (CFDSSAT), and concrete filled double skin steel PVC tube (CFDSSPT) columns with and without external steel rings. A series of axial compression tests were performed on 18 column specimens - 6 of each type. The results showed that the load carrying capacity and ductility of the CFDSST, CFDSSAT, and CFDSSPT specimens increased with the addition of external steel rings compared to those without rings. Of the three types, the CFDSSAT specimens exhibited the highest ultimate load values.
The document describes an experimental study that evaluated the flexural behavior of steel fiber reinforced high strength self-compacting concrete slabs. Six concrete slabs were tested with varying concrete types (ordinary, self-compacting, high strength self-compacting) and steel fiber volume fractions (0%, 0.75%, 1.5%). Test results found that using self-compacting concrete and adding steel fibers improved flexural resistance and led to more ductile failure. The high strength self-compacting concrete slab with 1.5% steel fibers showed the highest ultimate load capacity, an 18.8% increase over the non-fiber slab. A finite element analysis was able to reasonably model the slab test results.
IJRET : International Journal of Research in Engineering and Technology is an international peer reviewed, online journal published by eSAT Publishing House for the enhancement of research in various disciplines of Engineering and Technology. The aim and scope of the journal is to provide an academic medium and an important reference for the advancement and dissemination of research results that support high-level learning, teaching and research in the fields of Engineering and Technology. We bring together Scientists, Academician, Field Engineers, Scholars and Students of related fields of Engineering and Technology.
Behaviour of concrete beams reinforced with glass fibre reinforced polymer flatseSAT Journals
This document summarizes research on the behavior of concrete beams reinforced with glass fibre reinforced polymer (GFRP) flats. A series of beam shear tests were conducted using GFRP flats as shear reinforcement. Beams with silica coated GFRP flats showed failure at higher loads than theoretical failure loads. The GFRP flats also exhibited good ductility as shear reinforcement. Test results found that beams with GFRP flat shear reinforcement at 87mm and 110mm spacing failed at loads above theoretical predictions.
IRJET- Experimental Study on Steel Fiber-Reinforced Pervious ConcreteIRJET Journal
This document presents an experimental study on steel fiber-reinforced pervious concrete. Pervious concrete is a type of concrete with high porosity that allows water to pass through, reducing runoff. This study aims to develop an M30 grade of pervious concrete using the IS code method. Concrete mixes were prepared by replacing fine aggregate with coarse aggregate at rates of 5%, 10%, and 15% and adding crimped steel fibers at rates of 0%, 1.5%, and 2%. The compressive strength, workability, and infiltration rate of the mixes were tested and evaluated after 7 and 28 days of curing. The results showed that replacing fine aggregate at 15% and adding 2% steel fibers produced the highest compressive
This document summarizes a study on the performance of steel fibre reinforced interlocking hollow concrete blocks used as load bearing walls. The blocks were designed with interlocking ends and hollow portions to reduce weight and facilitate placement of electrical and plumbing utilities. Masonry walls were constructed using these blocks, locally available solid blocks, and hollow blocks to compare their load carrying capacities. Tests on concrete cubes, cylinders and beams with and without steel fibres showed that addition of steel fibres increased the compressive, splitting tensile and flexural strengths. Walls built with the steel fibre reinforced hollow blocks exhibited a 22% higher load carrying capacity and suffered less cracking compared to walls using solid or hollow blocks without fibres. The study concluded that these lightweight
Flexural behaviour of fibre reinforced ferrocement concreteSanthosh Jayaraman
Ferro cement
The term Ferro cement is most commonly applied to a mixture of Portland cement and sand applied over layers of woven or expanded steel mesh and closely spaced small-diameter steel rods. It can be used to form relatively thin, compound curved sheets to make hulls for boats, shell roofs, water tanks, etc. It has been used in a wide range of other applications including sculpture and prefabricated building components. The term has been applied by extension to other composite materials including some containing no cement and no ferrous material. These are better referred to by terms describing their actual contents.
Building Materials assignment 1 (Concrete)Syafiq Zariful
This document provides information on five types of building materials: ferrocement, fiber reinforced concrete, gypsum concrete, stamped concrete, and translucent concrete. It discusses the constituents, properties, advantages, disadvantages and applications of each material. Ferrocement is a reinforced cement mortar with wire mesh. It has high tensile strength and is lightweight but labor intensive. Fiber reinforced concrete includes fibers to increase toughness. Gypsum concrete uses gypsum as a binder and is used for partitions and ceilings. Stamped concrete is colored and textured to resemble other materials. Translucent concrete allows light transmission and is used for ceilings and facades.
To investigate combined influence of steel fiber and silicafume on high stren...IAEME Publication
This document investigates the combined influence of steel fiber and silica fume on the flexural strength of high-strength concrete for rigid pavement applications. Laboratory tests were conducted by casting concrete beams with varying amounts of steel fiber (0-30 kg/m3) and silica fume (5-15%). Beams were tested after 28 days to determine flexural strength. The results showed that flexural strength increased significantly with higher steel fiber content. Minimum fiber contents were tested against different silica fume percentages (5, 10, 15%) to obtain maximum flexural strength. Regression analysis was used to analyze the experimental results. The findings were then used to design pavements to determine the advantages of mixing steel fiber and sil
IRJET-Study on Strength Properties of SifconIRJET Journal
This document summarizes a study on the strength properties of Slurry Infiltrated Fiber Reinforced Concrete (SIFCON). SIFCON is a type of fiber concrete with a high fiber content (5-20% by volume) that provides high strength and ductility. The study investigated different mix proportions of SIFCON by varying the steel fiber content from 6-12% by volume. Testing showed that compressive, tensile, and flexural strength increased with higher fiber content. The 12% fiber mix achieved a 36% increase in compressive strength over conventional concrete. Based on strength and economy, 12% fiber content was found to be optimal for SIFCON. The document concludes that SIFCON is a
EFFECT OF STEEL AND POLYPROPYLENE FIBER ON MECHANICAL PROPERTIES OF CONCRETEIAEME Publication
This experimental work describes the mechanical properties of Hybrid Fibre Reinforced concrete(HFRC).HFRC is prepared by adding any two fibres to the conventional concrete to make it a composite mixture and that derives benefits from each of the added fibre and exhibits significant response. The fibres which are used in the present experimental work is steel fibres and polypropylene fibres. Here the polypropylene fibres helps in resists initial cracks and shrinkage ,steel fibres helps in increase the strength of concrete. In present work M30 grade of concrete can be prepared according to the IS 10262:2009 reference code. these steel and polypropylene fibres are added by 50% each with different hybridization from 0% to 1.5%.For calculating strength parameters specimens are casted and cured for 28 days and tested in the lab for Compressive Test, Tensile Test, Flexural test. From the present investigation the strength parameter increases with the percentage of increase in fibre. Therefore here the hybrid ratio of 1.5% gives the more result when compared to other hybrid ratio.
IJRET : International Journal of Research in Engineering and Technology is an international peer reviewed, online journal published by eSAT Publishing House for the enhancement of research in various disciplines of Engineering and Technology. The aim and scope of the journal is to provide an academic medium and an important reference for the advancement and dissemination of research results that support high-level learning, teaching and research in the fields of Engineering and Technology. We bring together Scientists, Academician, Field Engineers, Scholars and Students of related fields of Engineering and Technology
Flexural characteristics of sfrscc and sfrnc one way slabseSAT Journals
Abstract Fibre reinforced concrete with steel fibres attracted the attention of engineers and researchers during the last five decades. In recent times self-compacting concrete has been accepted as a quality product and are widely used. A large number of studies are available with respect to several parameters viz., load deflection behavior, toughness, flexural strength, ductility, effects of beam dimensions, concrete filling sequence, flexural toughness parameters, crack control etc. of fibre Reinforced Concrete. The present study aims to study the flexural behavior of SFRSCC and SFRNC slabs with steel fibres. Keywords: Self compacting concrete1, Fibre reinforced concrete2, Steel fibre reinforce normal concrete3, Steel fibre reinforce4, Self-compacting concrete5.
IJRET : International Journal of Research in Engineering and Technology is an international peer reviewed, online journal published by eSAT Publishing House for the enhancement of research in various disciplines of Engineering and Technology. The aim and scope of the journal is to provide an academic medium and an important reference for the advancement and dissemination of research results that support high-level learning, teaching and research in the fields of Engineering and Technology. We bring together Scientists, Academician, Field Engineers, Scholars and Students of related fields of Engineering and Technology.
This document summarizes research on the durability of fibre reinforced concrete. It discusses how fibres can improve the properties of concrete, including increased tensile strength and resistance to cracking. It outlines the methodology of the research, which involves testing concrete reinforced with different types and amounts of fibres, including steel, glass, natural and artificial fibres. The research examines the effect of fibres on the compressive and flexural strength of concrete beams. It also evaluates the durability of fibre reinforced concrete exposed to chloride and sulfate attacks. The results indicate that natural fibre reinforced concrete has the highest tensile strength and best durability. The research concludes that fibre reinforcement improves concrete properties and durability.
This document discusses steel fiber reinforced concrete (SFRC). SFRC increases the structural integrity of concrete by adding short, discrete steel fibers that are uniformly distributed and randomly oriented. The document outlines the materials used including cement, aggregates, water, and steel fibers. It describes the mix design process and percentages of steel fibers tested. Beams and cubes were cast with the concrete mixtures and cured before testing to determine the compressive and flexural strengths of the SFRC. The results and conclusions are summarized, with references provided.
Study of macro mechanical properties of ultra high strength concrete using qu...eSAT Publishing House
The document discusses a study on developing ultra-high strength concrete (UHSC) using locally available materials to achieve a compressive strength over 180 MPa. Various mixes were tested with different percentages of quartz powder (30-45%) and curing methods including normal water curing and hot air curing at 200°C for 1-3 days. The results showed that compressive strength increased up to 187 MPa for mixes with 40% quartz powder that were hot air cured for 1 day, compared to 116 MPa for normal water curing only. Higher quartz powder content and thermal curing improved strength through increased packing density and hydration reactions.
IRJET- Experimental Investigation of Steel Fiber Reinforced Concrete with Par...IRJET Journal
This document discusses an experimental investigation into steel fiber reinforced concrete with partial replacement of coarse aggregate by cupola slag. The following key points are discussed:
1. Steel fibers were added to concrete to improve properties like strength and ductility. Cupola slag, a byproduct from cast iron manufacturing, was used to partially replace coarse aggregate.
2. Tests were conducted to study the effect of adding hooked steel fibers and varying amounts of cupola slag on the mechanical properties of concrete, including compressive strength, split tensile strength, and flexural strength.
3. A literature review presented research on the use of steel fibers to enhance concrete properties and studies investigating the use of cupola slag as a partial replacement for
Strength and behaviour of sifcon with different types of fibersIAEME Publication
The document summarizes an experimental study on the strength and behavior of slurry infiltrated fiber concrete (SIFCON) with different types of fibers. Cube, cylinder and beam specimens were tested with steel and polypropylene fibers at 4%, 5%, and 6% volume. Compression, split tensile, and flexural tests were conducted at 7 and 28 days. Results showed that specimens with 5% fiber volume had the highest strengths for both steel and polypropylene fibers. Strengths generally decreased with 6% fiber volume. Polypropylene fiber was found to reduce crack width and density compared to steel fiber.
IRJET- Enhancing the Performance of Concrete by using Nano SilicaIRJET Journal
This document summarizes a study that investigated the effects of adding nano silica to reinforced concrete beams. The researchers created concrete cubes and beams with different percentages of nano silica added (0-2.5%) and tested their compressive and flexural strengths. They found that cubes and beams with 1.5-2% nano silica exhibited the highest strengths. Specifically, cubes with 1.5% nano silica showed around 37.6 MPa compressive strength, 37% higher than plain concrete. Beams with 1.5% nano silica also demonstrated around 17.6 MPa flexural strength for beams with stirrups and 21.1 MPa for beams with rebar only in the tension zone,
Experimental investigation on Controlled Permeable Formwork Liner in steel fi...IRJET Journal
This document summarizes an experimental study that investigated the effects of using a controlled permeable formwork (CPF) liner and adding steel fibers on the mechanical properties of M20 grade concrete. Specimens were prepared with and without CPF liner and with 0%, 1%, and 2% steel fibers by weight. At 28 days, compressive strength, split tensile strength, rebound hammer, ultrasonic pulse velocity, and water absorption tests were performed. The results showed that concrete with CPF liner and steel fibers had higher strength and durability properties compared to normal concrete without CPF liner or steel fibers. In particular, the CPF liner produced a denser, less porous surface zone in the concrete that improved its dur
Structural Behaviour of Ultra High Performance Fibre Reinforced ConcreteIRJET Journal
The document discusses the structural behavior of ultra-high performance fiber reinforced concrete (UHPFRC), specifically analyzing the effects of adding steel fibers at volumes from 0-2% on the compressive strength and load bearing capacity of UHPFRC mixes containing silica fume and quartz powder. Test results showed that UHPFRC produced greater strength than traditional concrete. Previous studies also found that UHPFRC improves the resistance and durability of reinforced concrete when used in retrofitting or laminates.
IRJET- Comparative Study on the Characteristic Behaviour of CFDSST, CFDSSAT &...IRJET Journal
The document presents a comparative study on the behavior of concrete filled double skin steel tube (CFDSST), concrete filled double skin steel aluminum tube (CFDSSAT), and concrete filled double skin steel PVC tube (CFDSSPT) columns with and without external steel rings. A series of axial compression tests were performed on 18 column specimens - 6 of each type. The results showed that the load carrying capacity and ductility of the CFDSST, CFDSSAT, and CFDSSPT specimens increased with the addition of external steel rings compared to those without rings. Of the three types, the CFDSSAT specimens exhibited the highest ultimate load values.
IRJET- Analysis of FRP in Strengthened RC ColumnsIRJET Journal
The document discusses a research study that analyzed the use of glass fiber reinforced polymer (GFRP) wraps to rehabilitate reinforced concrete columns damaged by corrosion. Concrete columns with two different levels of corrosion damage were wrapped with various GFRP materials and thicknesses and tested to evaluate how the GFRP affected the strength, deformation, ductility, and failure modes. The research aims to assess the effectiveness of GFRP wrapping as a rehabilitation technique for corrosion-damaged concrete columns and develop models to predict the performance of GFRP-confined corroded columns.
IRJET- Best Mix Design of Floating Concrete using Pumice StoneIRJET Journal
This study investigated developing floating concrete using pumice stone as a lightweight aggregate. Pumice stone was used to partially replace conventional aggregates, making the concrete lighter than water so it would float. Various mix designs were tested by casting concrete cubes and slabs. The best mix design had a pumice stone to cement ratio of 1:2.3 and achieved a compressive strength of 2.3 MPa and weight carrying capacity of 5.55 kg/m2, allowing it to support solar panels. While floating concrete was more expensive than conventional concrete, it provides a solution for installing solar panels on otherwise unused water surfaces.
Experimental Study of Improvement in Confinement of Reinforced Concrete ColumnIRJET Journal
This document presents an experimental study on improving confinement of reinforced concrete columns. 12 square reinforced concrete column specimens were tested with and without an additional layer of expanded metal mesh confinement. The columns were categorized based on their slenderness ratios and tie spacing. Test results showed that columns confined with the additional expanded metal mesh layer had significant improvements in strength and ductility compared to columns without the mesh. Finite element analysis using ANSYS software also showed similar behavior. The results indicate that an expanded metal mesh layer can improve load capacity while allowing for reductions in the volume of traditional tie reinforcement.
IRJET- Behavioral Study of Scaled GFRG Wall Panel Containing Opening Subjecte...IRJET Journal
- The document investigates the behavior of glass fiber reinforced gypsum (GFRG) wall panels with and without an opening when subjected to lateral loading.
- GFRG walls are a lightweight and energy efficient building material. The study tests 1m x 1m GFRG wall panels with and without a 0.15m x 0.4m central opening under repeated lateral loads.
- The panel without an opening achieved a peak load of 102kN, while visible cracks began appearing at 84kN. The panel with a central opening showed similar failure behavior to the solid panel under lateral loading.
This document summarizes a research study on strengthening reinforced concrete one-way slabs. It tested 21 slab specimens with different strengthening schemes including concrete overlay with various thicknesses and strengths, as well as the addition of carbon fiber reinforced polymer sheets. The experimental results showed that thicker and stronger concrete overlays increased cracking and ultimate loads compared to control specimens. Using bonding materials between the old and new concrete further improved load capacity. The best performing specimens combined a concrete overlay with externally bonded CFRP sheets, increasing ultimate load by 164% compared to controls.
This document summarizes a research study on strengthening reinforced concrete one-way slabs. It tested 21 slab specimens with different strengthening schemes including concrete overlay with various thicknesses and strengths, as well as the addition of carbon fiber reinforced polymer sheets. The experimental results showed that thicker and stronger concrete overlays increased cracking and ultimate loads compared to control specimens. Using bonding materials between the old and new concrete further improved load capacity. The combination of concrete overlay and CFRP sheets performed the best, increasing ultimate load by 164% compared to controls. The document provides details on the slab and strengthening specifications, materials used, test setup and results.
Experimental Investigation on Effect of Curtailed reinforcement in R.C beamsIRJET Journal
The document experimentally investigates the effect of curtailed reinforcement in reinforced concrete beams. Six beams were cast - three with curtailed reinforcement and three without. The beams were subjected to static compressive loading. Beams with curtailed reinforcement showed similar deflection levels to those without curtailment, while using 10.65% less steel. Cracks developed earlier in beams with curtailed reinforcement, but failure modes were similar between beam types. In conclusion, curtailed reinforcement can reduce steel usage without compromising structural performance, providing a more cost-effective design.
IRJET - Study on Workability and Compressive Strength of Concrete Blended...IRJET Journal
This document summarizes a study on the workability and compressive strength of concrete blended with steel fibers. Steel fibers were added to concrete mixes in volumes of 0%, 0.5%, 1%, 1.5%, and 2%. Testing found that as fiber content increased, workability decreased, requiring the addition of plasticizers. Compressive strength generally increased with higher fiber content up to 2%, with a maximum strength increase of 27.67% observed for 2% fiber volume with plasticizer addition. The study concluded that steel fiber reinforcement improved compressive strength but reduced workability, and plasticizers helped offset the loss of workability.
IJERD(www.ijerd.com)International Journal of Engineering Research and Develop...IJERD Editor
The document summarizes an experimental study on the flexural behavior of ferrocement slabs reinforced with polyvinyl chloride (PVC)-coated steel weld mesh. Ferrocement slabs of size 700mm x 200mm x 15mm thick were cast with 1, 2, and 3 layers of PVC-coated mesh and galvanized iron (GI)-coated mesh. Flexural tests were conducted to determine load-deflection behavior and cracking. Results showed that as the number of mesh layers increased from 1 to 3, the flexural load capacity and ductility of the slabs improved significantly. Slabs with PVC-coated mesh achieved 90% of the load capacity of slabs with GI-coated mesh
International Journal of Engineering Research and Development is an international premier peer reviewed open access engineering and technology journal promoting the discovery, innovation, advancement and dissemination of basic and transitional knowledge in engineering, technology and related disciplines.
We follow "Rigorous Publication" model - means that all articles appear on IJERD after full appraisal, effectiveness, legitimacy and reliability of research content. International Journal of Engineering Research and Development publishes papers online as well as provide hard copy of Journal to authors after publication of paper. It is intended to serve as a forum for researchers, practitioners and developers to exchange ideas and results for the advancement of Engineering & Technology.
IRJET- Experimental Investigation of Thermocrete PanelIRJET Journal
The document describes an experimental investigation of thermocrete panels. Thermocrete panels are reinforced concrete sandwich panels consisting of an expanded polystyrene core sandwiched between two layers of welded wire mesh, with a concrete mix applied to the exterior surfaces. The study tested thermocrete panels for their flexural strength, compressive strength, and thermal insulating properties. Results showed that the panels had high flexural strength and compressive strength while providing good thermal insulation. Thermocrete panels offer advantages over traditional concrete as they are lighter weight, easy to mold and install, water resistant, thermally insulating, and can be used in a variety of building construction applications.
IRJET- Experimental Investigation of Thermocrete PanelIRJET Journal
This document describes an experimental investigation of thermocrete panels. Thermocrete panels are reinforced concrete sandwich panels consisting of an expanded polystyrene core sandwiched between two layers of welded wire mesh, with a concrete mix applied to the exterior surfaces. The study tested thermocrete panels for properties like flexural strength and load-deflection behavior at various ages. Results showed increasing flexural strength and stiffness with age. Thermocrete panels offer advantages over traditional concrete like lighter weight, thermal insulation, and ease of application for uses like roofs, walls, floors, and more.
Effect Of Polydisperse Cementitious Polymer Based Waterproof Coated Steel Fib...IRJET Journal
This document presents an experimental study on the effect of hybrid fibers, including poly-disperse cementitious polymer based waterproof coated steel fibers and polypropylene fibers, on the mechanical properties of concrete. Steel fibers were coated with styrene butadiene rubber to provide corrosion resistance. Various concrete mixtures with variations in the percentage of steel and polypropylene fibers were tested. The study found that hybrid fibers improved the compressive strength, split tensile strength, and flexural strength of concrete compared to non-fiber concrete. The waterproof coating on the steel fibers helped boost the structure's energy absorption capacity and resistance to chemical attacks.
AN EXPERIMENTAL STUDY ON EFFECT OF MINERAL ADMIXTURE ON CONFINEMENT OF SHORT ...IRJET Journal
This document presents the results of an experimental study on the effect of mineral admixtures and ferro mesh confinement on short concrete columns. Three sets of circular reinforced concrete columns with different mix designs and confinement techniques were tested under axial compression loading. The key findings are:
1) Columns with reinforcement wrapped in ferro mesh showed improved load carrying capacity, stiffness and ductility compared to columns without ferro mesh confinement.
2) Columns cast with a mix of 70% ordinary Portland cement and 30% ground granulated blast furnace slag exhibited higher strength and smaller deformations compared to a plain concrete mix.
3) The use of ferro mesh confinement and mineral admixtures in the concrete mix can change the failure mode of columns
EXPERIMENTAL STUDIES ON STRENGTH OF FERRO-CRETE BY USING STEEL MESHES IN SPEC...IRJET Journal
This document summarizes an experimental study on the strength of ferrocrete by using steel meshes in specimens. Ferrocrete is a type of concrete reinforced with wire mesh that has higher tensile strength and crack resistance compared to reinforced concrete. The study tested ferrocrete cubes and beams with different wire mesh arrangements, including horizontal, vertical, and diagonal orientations, after curing periods of 7, 14, and 28 days. The results showed that as the volume of wire mesh reinforcement increased, the cracking and ultimate load capacity of the ferrocrete specimens also increased. The use of steel mesh in ferrocrete not only enhanced its tensile strength but also improved its compressive strength and crack resistance over conventional reinforced concrete.
Energy Absorption Characteristics of Thin Walled Metallic and Foam Filled Tub...IRJET Journal
This document discusses a numerical study comparing the energy absorption characteristics of thin-walled metallic tubular structures with different cross-sectional geometries, both empty and foam-filled. Finite element models of circular, triangular, hexagonal and square tubes undergoing quasi-static axial crushing were created and analyzed. The results show that circular tubes absorbed the most energy of the empty metallic tubes, while foam-filled tubes had higher energy absorption than empty tubes of the same geometry.
IRJET- Study on Self Compacting Concrete using Recycled Aggregate as Part...IRJET Journal
This document presents the results of a study on the effects of adding marble dust and steel fibers to concrete. The study investigated the impact on compressive strength, split tensile strength, and flexural strength. Concrete cubes, cylinders, and beams were cast with varying percentages of marble dust replacing cement and steel fibers added. Testing at 28 days showed that replacing 10% of cement with marble dust and adding up to 1% steel fibers increased the compressive, split tensile, and flexural strengths of the concrete compared to normal concrete without additions. The optimal mix was found to be 10% marble dust and 1% steel fibers.
Similar to Review Paper On Usage Of Ferrocement Panels In Lightweight Sandwich Concrete Slabs (20)
TUNNELING IN HIMALAYAS WITH NATM METHOD: A SPECIAL REFERENCES TO SUNGAL TUNNE...IRJET Journal
1) The document discusses the Sungal Tunnel project in Jammu and Kashmir, India, which is being constructed using the New Austrian Tunneling Method (NATM).
2) NATM involves continuous monitoring during construction to adapt to changing ground conditions, and makes extensive use of shotcrete for temporary tunnel support.
3) The methodology section outlines the systematic geotechnical design process for tunnels according to Austrian guidelines, and describes the various steps of NATM tunnel construction including initial and secondary tunnel support.
STUDY THE EFFECT OF RESPONSE REDUCTION FACTOR ON RC FRAMED STRUCTUREIRJET Journal
This study examines the effect of response reduction factors (R factors) on reinforced concrete (RC) framed structures through nonlinear dynamic analysis. Three RC frame models with varying heights (4, 8, and 12 stories) were analyzed in ETABS software under different R factors ranging from 1 to 5. The results showed that displacement increased as the R factor decreased, indicating less linear behavior for lower R factors. Drift also decreased proportionally with increasing R factors from 1 to 5. Shear forces in the frames decreased with higher R factors. In general, R factors of 3 to 5 produced more satisfactory performance with less displacement and drift. The displacement variations between different building heights were consistent at different R factors. This study evaluated how R factors influence
A COMPARATIVE ANALYSIS OF RCC ELEMENT OF SLAB WITH STARK STEEL (HYSD STEEL) A...IRJET Journal
This study compares the use of Stark Steel and TMT Steel as reinforcement materials in a two-way reinforced concrete slab. Mechanical testing is conducted to determine the tensile strength, yield strength, and other properties of each material. A two-way slab design adhering to codes and standards is executed with both materials. The performance is analyzed in terms of deflection, stability under loads, and displacement. Cost analyses accounting for material, durability, maintenance, and life cycle costs are also conducted. The findings provide insights into the economic and structural implications of each material for reinforcement selection and recommendations on the most suitable material based on the analysis.
Effect of Camber and Angles of Attack on Airfoil CharacteristicsIRJET Journal
This document discusses a study analyzing the effect of camber, position of camber, and angle of attack on the aerodynamic characteristics of airfoils. Sixteen modified asymmetric NACA airfoils were analyzed using computational fluid dynamics (CFD) by varying the camber, camber position, and angle of attack. The results showed the relationship between these parameters and the lift coefficient, drag coefficient, and lift to drag ratio. This provides insight into how changes in airfoil geometry impact aerodynamic performance.
A Review on the Progress and Challenges of Aluminum-Based Metal Matrix Compos...IRJET Journal
This document reviews the progress and challenges of aluminum-based metal matrix composites (MMCs), focusing on their fabrication processes and applications. It discusses how various aluminum MMCs have been developed using reinforcements like borides, carbides, oxides, and nitrides to improve mechanical and wear properties. These composites have gained prominence for their lightweight, high-strength and corrosion resistance properties. The document also examines recent advancements in fabrication techniques for aluminum MMCs and their growing applications in industries such as aerospace and automotive. However, it notes that challenges remain around issues like improper mixing of reinforcements and reducing reinforcement agglomeration.
Dynamic Urban Transit Optimization: A Graph Neural Network Approach for Real-...IRJET Journal
This document discusses research on using graph neural networks (GNNs) for dynamic optimization of public transportation networks in real-time. GNNs represent transit networks as graphs with nodes as stops and edges as connections. The GNN model aims to optimize networks using real-time data on vehicle locations, arrival times, and passenger loads. This helps increase mobility, decrease traffic, and improve efficiency. The system continuously trains and infers to adapt to changing transit conditions, providing decision support tools. While research has focused on performance, more work is needed on security, socio-economic impacts, contextual generalization of models, continuous learning approaches, and effective real-time visualization.
Structural Analysis and Design of Multi-Storey Symmetric and Asymmetric Shape...IRJET Journal
This document summarizes a research project that aims to compare the structural performance of conventional slab and grid slab systems in multi-story buildings using ETABS software. The study will analyze both symmetric and asymmetric building models under various loading conditions. Parameters like deflections, moments, shears, and stresses will be examined to evaluate the structural effectiveness of each slab type. The results will provide insights into the comparative behavior of conventional and grid slabs to help engineers and architects select appropriate slab systems based on building layouts and design requirements.
A Review of “Seismic Response of RC Structures Having Plan and Vertical Irreg...IRJET Journal
This document summarizes and reviews a research paper on the seismic response of reinforced concrete (RC) structures with plan and vertical irregularities, with and without infill walls. It discusses how infill walls can improve or reduce the seismic performance of RC buildings, depending on factors like wall layout, height distribution, connection to the frame, and relative stiffness of walls and frames. The reviewed research paper analyzes the behavior of infill walls, effects of vertical irregularities, and seismic performance of high-rise structures under linear static and dynamic analysis. It studies response characteristics like story drift, deflection and shear. The document also provides literature on similar research investigating the effects of infill walls, soft stories, plan irregularities, and different
This document provides a review of machine learning techniques used in Advanced Driver Assistance Systems (ADAS). It begins with an abstract that summarizes key applications of machine learning in ADAS, including object detection, recognition, and decision-making. The introduction discusses the integration of machine learning in ADAS and how it is transforming vehicle safety. The literature review then examines several research papers on topics like lightweight deep learning models for object detection and lane detection models using image processing. It concludes by discussing challenges and opportunities in the field, such as improving algorithm robustness and adaptability.
Long Term Trend Analysis of Precipitation and Temperature for Asosa district,...IRJET Journal
The document analyzes temperature and precipitation trends in Asosa District, Benishangul Gumuz Region, Ethiopia from 1993 to 2022 based on data from the local meteorological station. The results show:
1) The average maximum and minimum annual temperatures have generally decreased over time, with maximum temperatures decreasing by a factor of -0.0341 and minimum by -0.0152.
2) Mann-Kendall tests found the decreasing temperature trends to be statistically significant for annual maximum temperatures but not for annual minimum temperatures.
3) Annual precipitation in Asosa District showed a statistically significant increasing trend.
The conclusions recommend development planners account for rising summer precipitation and declining temperatures in
P.E.B. Framed Structure Design and Analysis Using STAAD ProIRJET Journal
This document discusses the design and analysis of pre-engineered building (PEB) framed structures using STAAD Pro software. It provides an overview of PEBs, including that they are designed off-site with building trusses and beams produced in a factory. STAAD Pro is identified as a key tool for modeling, analyzing, and designing PEBs to ensure their performance and safety under various load scenarios. The document outlines modeling structural parts in STAAD Pro, evaluating structural reactions, assigning loads, and following international design codes and standards. In summary, STAAD Pro is used to design and analyze PEB framed structures to ensure safety and code compliance.
A Review on Innovative Fiber Integration for Enhanced Reinforcement of Concre...IRJET Journal
This document provides a review of research on innovative fiber integration methods for reinforcing concrete structures. It discusses studies that have explored using carbon fiber reinforced polymer (CFRP) composites with recycled plastic aggregates to develop more sustainable strengthening techniques. It also examines using ultra-high performance fiber reinforced concrete to improve shear strength in beams. Additional topics covered include the dynamic responses of FRP-strengthened beams under static and impact loads, and the performance of preloaded CFRP-strengthened fiber reinforced concrete beams. The review highlights the potential of fiber composites to enable more sustainable and resilient construction practices.
Survey Paper on Cloud-Based Secured Healthcare SystemIRJET Journal
This document summarizes a survey on securing patient healthcare data in cloud-based systems. It discusses using technologies like facial recognition, smart cards, and cloud computing combined with strong encryption to securely store patient data. The survey found that healthcare professionals believe digitizing patient records and storing them in a centralized cloud system would improve access during emergencies and enable more efficient care compared to paper-based systems. However, ensuring privacy and security of patient data is paramount as healthcare incorporates these digital technologies.
Review on studies and research on widening of existing concrete bridgesIRJET Journal
This document summarizes several studies that have been conducted on widening existing concrete bridges. It describes a study from China that examined load distribution factors for a bridge widened with composite steel-concrete girders. It also outlines challenges and solutions for widening a bridge in the UAE, including replacing bearings and stitching the new and existing structures. Additionally, it discusses two bridge widening projects in New Zealand that involved adding precast beams and stitching to connect structures. Finally, safety measures and challenges for strengthening a historic bridge in Switzerland under live traffic are presented.
React based fullstack edtech web applicationIRJET Journal
The document describes the architecture of an educational technology web application built using the MERN stack. It discusses the frontend developed with ReactJS, backend with NodeJS and ExpressJS, and MongoDB database. The frontend provides dynamic user interfaces, while the backend offers APIs for authentication, course management, and other functions. MongoDB enables flexible data storage. The architecture aims to provide a scalable, responsive platform for online learning.
A Comprehensive Review of Integrating IoT and Blockchain Technologies in the ...IRJET Journal
This paper proposes integrating Internet of Things (IoT) and blockchain technologies to help implement objectives of India's National Education Policy (NEP) in the education sector. The paper discusses how blockchain could be used for secure student data management, credential verification, and decentralized learning platforms. IoT devices could create smart classrooms, automate attendance tracking, and enable real-time monitoring. Blockchain would ensure integrity of exam processes and resource allocation, while smart contracts automate agreements. The paper argues this integration has potential to revolutionize education by making it more secure, transparent and efficient, in alignment with NEP goals. However, challenges like infrastructure needs, data privacy, and collaborative efforts are also discussed.
A REVIEW ON THE PERFORMANCE OF COCONUT FIBRE REINFORCED CONCRETE.IRJET Journal
This document provides a review of research on the performance of coconut fibre reinforced concrete. It summarizes several studies that tested different volume fractions and lengths of coconut fibres in concrete mixtures with varying compressive strengths. The studies found that coconut fibre improved properties like tensile strength, toughness, crack resistance, and spalling resistance compared to plain concrete. Volume fractions of 2-5% and fibre lengths of 20-50mm produced the best results. The document concludes that using a 4-5% volume fraction of coconut fibres 30-40mm in length with M30-M60 grade concrete would provide benefits based on previous research.
Optimizing Business Management Process Workflows: The Dynamic Influence of Mi...IRJET Journal
The document discusses optimizing business management processes through automation using Microsoft Power Automate and artificial intelligence. It provides an overview of Power Automate's key components and features for automating workflows across various apps and services. The document then presents several scenarios applying automation solutions to common business processes like data entry, monitoring, HR, finance, customer support, and more. It estimates the potential time and cost savings from implementing automation for each scenario. Finally, the conclusion emphasizes the transformative impact of AI and automation tools on business processes and the need for ongoing optimization.
Multistoried and Multi Bay Steel Building Frame by using Seismic DesignIRJET Journal
The document describes the seismic design of a G+5 steel building frame located in Roorkee, India according to Indian codes IS 1893-2002 and IS 800. The frame was analyzed using the equivalent static load method and response spectrum method, and its response in terms of displacements and shear forces were compared. Based on the analysis, the frame was designed as a seismic-resistant steel structure according to IS 800:2007. The software STAAD Pro was used for the analysis and design.
Cost Optimization of Construction Using Plastic Waste as a Sustainable Constr...IRJET Journal
This research paper explores using plastic waste as a sustainable and cost-effective construction material. The study focuses on manufacturing pavers and bricks using recycled plastic and partially replacing concrete with plastic alternatives. Initial results found that pavers and bricks made from recycled plastic demonstrate comparable strength and durability to traditional materials while providing environmental and cost benefits. Additionally, preliminary research indicates incorporating plastic waste as a partial concrete replacement significantly reduces construction costs without compromising structural integrity. The outcomes suggest adopting plastic waste in construction can address plastic pollution while optimizing costs, promoting more sustainable building practices.
Software Engineering and Project Management - Introduction, Modeling Concepts...Prakhyath Rai
Introduction, Modeling Concepts and Class Modeling: What is Object orientation? What is OO development? OO Themes; Evidence for usefulness of OO development; OO modeling history. Modeling
as Design technique: Modeling, abstraction, The Three models. Class Modeling: Object and Class Concept, Link and associations concepts, Generalization and Inheritance, A sample class model, Navigation of class models, and UML diagrams
Building the Analysis Models: Requirement Analysis, Analysis Model Approaches, Data modeling Concepts, Object Oriented Analysis, Scenario-Based Modeling, Flow-Oriented Modeling, class Based Modeling, Creating a Behavioral Model.
artificial intelligence and data science contents.pptxGauravCar
What is artificial intelligence? Artificial intelligence is the ability of a computer or computer-controlled robot to perform tasks that are commonly associated with the intellectual processes characteristic of humans, such as the ability to reason.
› ...
Artificial intelligence (AI) | Definitio
Optimizing Gradle Builds - Gradle DPE Tour Berlin 2024Sinan KOZAK
Sinan from the Delivery Hero mobile infrastructure engineering team shares a deep dive into performance acceleration with Gradle build cache optimizations. Sinan shares their journey into solving complex build-cache problems that affect Gradle builds. By understanding the challenges and solutions found in our journey, we aim to demonstrate the possibilities for faster builds. The case study reveals how overlapping outputs and cache misconfigurations led to significant increases in build times, especially as the project scaled up with numerous modules using Paparazzi tests. The journey from diagnosing to defeating cache issues offers invaluable lessons on maintaining cache integrity without sacrificing functionality.
Comparative analysis between traditional aquaponics and reconstructed aquapon...bijceesjournal
The aquaponic system of planting is a method that does not require soil usage. It is a method that only needs water, fish, lava rocks (a substitute for soil), and plants. Aquaponic systems are sustainable and environmentally friendly. Its use not only helps to plant in small spaces but also helps reduce artificial chemical use and minimizes excess water use, as aquaponics consumes 90% less water than soil-based gardening. The study applied a descriptive and experimental design to assess and compare conventional and reconstructed aquaponic methods for reproducing tomatoes. The researchers created an observation checklist to determine the significant factors of the study. The study aims to determine the significant difference between traditional aquaponics and reconstructed aquaponics systems propagating tomatoes in terms of height, weight, girth, and number of fruits. The reconstructed aquaponics system’s higher growth yield results in a much more nourished crop than the traditional aquaponics system. It is superior in its number of fruits, height, weight, and girth measurement. Moreover, the reconstructed aquaponics system is proven to eliminate all the hindrances present in the traditional aquaponics system, which are overcrowding of fish, algae growth, pest problems, contaminated water, and dead fish.
Discover the latest insights on Data Driven Maintenance with our comprehensive webinar presentation. Learn about traditional maintenance challenges, the right approach to utilizing data, and the benefits of adopting a Data Driven Maintenance strategy. Explore real-world examples, industry best practices, and innovative solutions like FMECA and the D3M model. This presentation, led by expert Jules Oudmans, is essential for asset owners looking to optimize their maintenance processes and leverage digital technologies for improved efficiency and performance. Download now to stay ahead in the evolving maintenance landscape.
Rainfall intensity duration frequency curve statistical analysis and modeling...bijceesjournal
Using data from 41 years in Patna’ India’ the study’s goal is to analyze the trends of how often it rains on a weekly, seasonal, and annual basis (1981−2020). First, utilizing the intensity-duration-frequency (IDF) curve and the relationship by statistically analyzing rainfall’ the historical rainfall data set for Patna’ India’ during a 41 year period (1981−2020), was evaluated for its quality. Changes in the hydrologic cycle as a result of increased greenhouse gas emissions are expected to induce variations in the intensity, length, and frequency of precipitation events. One strategy to lessen vulnerability is to quantify probable changes and adapt to them. Techniques such as log-normal, normal, and Gumbel are used (EV-I). Distributions were created with durations of 1, 2, 3, 6, and 24 h and return times of 2, 5, 10, 25, and 100 years. There were also mathematical correlations discovered between rainfall and recurrence interval.
Findings: Based on findings, the Gumbel approach produced the highest intensity values, whereas the other approaches produced values that were close to each other. The data indicates that 461.9 mm of rain fell during the monsoon season’s 301st week. However, it was found that the 29th week had the greatest average rainfall, 92.6 mm. With 952.6 mm on average, the monsoon season saw the highest rainfall. Calculations revealed that the yearly rainfall averaged 1171.1 mm. Using Weibull’s method, the study was subsequently expanded to examine rainfall distribution at different recurrence intervals of 2, 5, 10, and 25 years. Rainfall and recurrence interval mathematical correlations were also developed. Further regression analysis revealed that short wave irrigation, wind direction, wind speed, pressure, relative humidity, and temperature all had a substantial influence on rainfall.
Originality and value: The results of the rainfall IDF curves can provide useful information to policymakers in making appropriate decisions in managing and minimizing floods in the study area.