This document summarizes the engineering feasibility of using gabion structures instead of reinforced concrete structures. Some key points:
1) Gabion structures are more economical than reinforced concrete, with cost savings ranging from 33-66% due to lower material, transportation, and construction costs.
2) Gabions have advantages over concrete in terms of flexibility, permeability, hydraulic stability, sustainability, and ability to use various filler materials. They are less prone to issues like cracking, drainage problems, and scouring.
3) Testing of different gabion filler material combinations found that a 50-50% mixture of coarse aggregates and red soil exhibited the least deformation under loads, increasing load capacity by over 30% compared to
IRJET- Experimental Investigation of Engineering Properties of Hollow Concret...IRJET Journal
The document investigates the engineering properties of hollow concrete blocks reinforced with basalt fibre. Basalt fibre is added to hollow concrete blocks in amounts of 0.5%, 1%, and 1.5% by volume of cement to study its effect on compressive strength. Testing shows that with increased basalt fibre content, the compressive strength and density of the hollow blocks increases while water absorption decreases, with the 1.5% fibre content blocks performing best. The aim is to reduce cracking in hollow concrete block walls through the addition of basalt fibre.
Fiber reinforced concrete - Fibers types and properties, Behavior of FRC in compression, tension including pre-cracking stage and post-cracking stages, behavior in flexure and shear.
GFRC is a lightweight, durable composite material made of Portland cement, fine aggregate, water, acrylic co-polymer, glass fiber reinforcement and additives. It results in a product with higher tensile strength than normal concrete that can be molded into various shapes, colors and textures. GFRC is approximately 75% lighter than traditional concrete and its internal reinforcement means no additional reinforcements are needed. It is used in construction applications such as buildings, cladding, landscaping, roofing, walls, windows, renovation, floors, foundations, modular buildings, acoustic barriers, bridges, tunnels and water/drainage systems due to its strength, low maintenance properties and moldability.
Unit-1 Lecture-4 - Light Weight Construction Materials by Brig. S.K. SharmaTHE NORTHCAP UNIVERSITY
This document discusses different types of fiber reinforced concrete, including slurry infiltrated fiber concrete (SIFCON) and slurry infiltrated mat concrete (SIMCON). SIFCON involves pre-placing dry fibers in a mold and infiltrating them with cement slurry, allowing for higher fiber volumes between 5-30% compared to 1-2% in traditional fiber reinforced concrete. SIMCON uses continuous fiber mats reinforced with cement slurry. SIMCON provides inherent strength from the fiber mat configuration and utilizes fibers with higher aspect ratios. Both SIFCON and SIMCON improve upon traditional fiber reinforced concrete in improving tensile and impact strengths.
Ch. Gopi Chand presented on fiber reinforced concrete at Sri Venkateswara Engineering College. Fiber reinforced concrete was developed as a replacement for asbestos fibers in concrete. It involves adding short discrete fibers uniformly throughout a concrete mix. These fibers increase the tensile strength and cracking resistance of concrete. Fiber reinforced concrete has applications in thin sheets, pipes, precast elements, and transparent panels and partitions due to its improved strength and durability properties.
Fibre reinforced concrete is a type of concrete containing fibres that increase its structural integrity. It is made of Portland cement reinforced with randomly distributed fibres. The fibres are used to overcome concrete's weakness in tension and brittleness. Common fibre types include steel, glass, carbon and polypropylene. Factors like fibre volume, aspect ratio, orientation and relative stiffness affect FRC properties. FRC exhibits improved tensile cracking behaviour and increased toughness, energy absorption and fracture resistance compared to conventional concrete.
This document provides an introduction to fibre reinforced concrete (FRC). It discusses the benefits of FRC such as improved tensile strength and ductility. It also outlines different types of fibres that can be used, factors that affect the properties of FRC like fibre type and volume, and applications of FRC such as overlays and precast products. Current developments in FRC including high fibre volume microfibre systems and slurry infiltrated fibre concrete are also mentioned.
IRJET- Experimental Investigation of Engineering Properties of Hollow Concret...IRJET Journal
The document investigates the engineering properties of hollow concrete blocks reinforced with basalt fibre. Basalt fibre is added to hollow concrete blocks in amounts of 0.5%, 1%, and 1.5% by volume of cement to study its effect on compressive strength. Testing shows that with increased basalt fibre content, the compressive strength and density of the hollow blocks increases while water absorption decreases, with the 1.5% fibre content blocks performing best. The aim is to reduce cracking in hollow concrete block walls through the addition of basalt fibre.
Fiber reinforced concrete - Fibers types and properties, Behavior of FRC in compression, tension including pre-cracking stage and post-cracking stages, behavior in flexure and shear.
GFRC is a lightweight, durable composite material made of Portland cement, fine aggregate, water, acrylic co-polymer, glass fiber reinforcement and additives. It results in a product with higher tensile strength than normal concrete that can be molded into various shapes, colors and textures. GFRC is approximately 75% lighter than traditional concrete and its internal reinforcement means no additional reinforcements are needed. It is used in construction applications such as buildings, cladding, landscaping, roofing, walls, windows, renovation, floors, foundations, modular buildings, acoustic barriers, bridges, tunnels and water/drainage systems due to its strength, low maintenance properties and moldability.
Unit-1 Lecture-4 - Light Weight Construction Materials by Brig. S.K. SharmaTHE NORTHCAP UNIVERSITY
This document discusses different types of fiber reinforced concrete, including slurry infiltrated fiber concrete (SIFCON) and slurry infiltrated mat concrete (SIMCON). SIFCON involves pre-placing dry fibers in a mold and infiltrating them with cement slurry, allowing for higher fiber volumes between 5-30% compared to 1-2% in traditional fiber reinforced concrete. SIMCON uses continuous fiber mats reinforced with cement slurry. SIMCON provides inherent strength from the fiber mat configuration and utilizes fibers with higher aspect ratios. Both SIFCON and SIMCON improve upon traditional fiber reinforced concrete in improving tensile and impact strengths.
Ch. Gopi Chand presented on fiber reinforced concrete at Sri Venkateswara Engineering College. Fiber reinforced concrete was developed as a replacement for asbestos fibers in concrete. It involves adding short discrete fibers uniformly throughout a concrete mix. These fibers increase the tensile strength and cracking resistance of concrete. Fiber reinforced concrete has applications in thin sheets, pipes, precast elements, and transparent panels and partitions due to its improved strength and durability properties.
Fibre reinforced concrete is a type of concrete containing fibres that increase its structural integrity. It is made of Portland cement reinforced with randomly distributed fibres. The fibres are used to overcome concrete's weakness in tension and brittleness. Common fibre types include steel, glass, carbon and polypropylene. Factors like fibre volume, aspect ratio, orientation and relative stiffness affect FRC properties. FRC exhibits improved tensile cracking behaviour and increased toughness, energy absorption and fracture resistance compared to conventional concrete.
This document provides an introduction to fibre reinforced concrete (FRC). It discusses the benefits of FRC such as improved tensile strength and ductility. It also outlines different types of fibres that can be used, factors that affect the properties of FRC like fibre type and volume, and applications of FRC such as overlays and precast products. Current developments in FRC including high fibre volume microfibre systems and slurry infiltrated fibre concrete are also mentioned.
This document discusses fiber reinforced concrete and different types of fibers that can be used. It describes various fiber materials including steel, glass, synthetic polymers like polypropylene and nylon, carbon, and natural fibers. For each type of fiber, the document discusses their properties, manufacturing methods, how they work to improve concrete properties, and common applications. Polypropylene fibers are discussed in more depth as one of the most common and cost-effective synthetic fiber options for concrete reinforcement.
AN INVESTIGATION ON GLASS FIBRE REINFORCED CONCRETE USING ECO SANDVikaas Balaji
WE HAVE FOUND THAT BY ADDING 2% AND 4% OF GLASS FIBRE IN CONCRETE MIX AND INSTEAD OF RIVER SAND AND M-SAND WE HAVE USED ECO SAND TO ACHIEVE STRENGTH IN CONCRETE IN RESPECTIVE DAYS (7 AND 28 DAYS)
Unit-1 Lecture-2 - Light Weight Construction Materials by Brig. S.K. SharmaTHE NORTHCAP UNIVERSITY
This document discusses light weight construction materials, specifically foamed concrete. It describes four types of foamed concrete based on density and their typical uses. Densities range from 300-600 kg/m3 for thermal insulation up to 1200-1600 kg/m3 for precast panels. Advantages include economy, durability, thermal insulation, fire safety and wide range of applications. Disadvantages include reduced strength at lower densities and specialized tools needed for fastening. It also categorizes light-weight concretes based on aggregates and concludes that structural light-weight concrete combining strength and lightness will have economic advantages.
IRJET- Performance of Basalt Fiber in ConcreteIRJET Journal
The document discusses the performance of basalt fiber in concrete. It begins with an abstract that summarizes the experimental investigation conducted on basalt fiber concrete. Specimens like cubes, cylinders, and beams were cast using M25 grade concrete with locally available materials. The addition of basalt fibers was studied to determine its effect on the compressive, split tensile, and flexural strengths of the concrete. The experimental results showed that the addition of basalt fiber enhanced the properties of the concrete.
The document then discusses the materials used - cement, fine aggregate, coarse aggregate, water, and basalt fiber. The mix design for M25 grade concrete is presented. The experimental program involved workability, compressive strength,
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,
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.
Fiber reinforced concrete is a composite material made of cement, mortar or concrete with closely spaced fibers added. The fibers, which can include glass, carbon, polypropylene or nylon, increase the tensile strength and crack resistance of the concrete.
Fiberglass reinforced concrete (GFRC) specifically uses glass fibers in the mix. It provides an ultra-strong yet flexible concrete that protects against environmental damage. GFRC is lightweight, durable, and can be cast into complex shapes.
Some key properties and applications of fiber reinforced concrete include increased tensile strength, impact resistance, limited crack growth, use in pavement overlays, industrial floors, bridges, canal linings, blast resistant structures, and pre
Hello readers,
In this presentation, I am sharing Fiber Reinforced Concrete.
The following parameters are discussed in the presentation:
History.
Why Fibers are used?
Type of fibers.
Mechanical properties of FRC.
Factors affecting properties of FRC.
Advantages and Disadvantages of FRC.
Applications of FRC.
Ferrocement is a thin cement composite material reinforced with closely spaced layers of wire mesh. It consists of a cement mortar matrix reinforced with small diameter wire mesh. The mortar provides mass while the wire mesh provides tensile strength and ductility. Ferrocement can be constructed using a variety of techniques and has applications in marine structures, water and sanitation infrastructure, agriculture, housing and rural energy due to advantages like strength, ductility, impact resistance and impermeability.
Reinforced concrete is a composite material that combines concrete's low tensile strength with reinforcement bars' high tensile strength. The reinforcement, usually steel rebar, is embedded in concrete before it sets to resist tensile stresses that could cause cracking or failure. Modern reinforced concrete can use varied reinforcing materials like steel, polymers, or composites alone or with rebar. Reinforced concrete provides strength and durability for construction.
The document discusses the use of fiber reinforced concrete (FRC) in industrial floors. It begins with an introduction to the characteristics and requirements of industrial floors, including strength, durability, and resistance to impacts and chemicals. Next, it describes the properties of FRC and how fibers improve the tensile strength and ductility of concrete. The document then compares the properties of FRC and conventional concrete, finding that FRC has higher strength, durability at high temperatures, and crack resistance. It presents a case study of an industrial floor construction project in New Zealand that successfully used steel fiber reinforced concrete.
This document discusses various types of admixtures that are added to concrete to modify its properties. It describes 15 types of admixtures classified according to their function, including plasticizers, superplasticizers, retarders, accelerators, air-entraining agents, and pozzolanic materials. Common chemical admixtures are discussed in more detail, along with their effects on properties of fresh and hardened concrete. Mineral admixtures like fly ash, blast furnace slag, rice husk ash, and silica fume are also summarized in terms of their composition and impact on improving concrete quality and durability.
Mono and Fibril Brand Microsynthetic Fibres for Industrial FloorsCihan Erdoğan
This document discusses the use of polypropylene microfibers in concrete to improve durability, specifically for industrial concrete floors. It provides background on the history of fiber reinforced concrete and defines different types of microsynthetic fibers, including monofilament and fibrillated fibers. The document explains that polypropylene fibers improve durability by reducing shrinkage cracking and permeability, thus preventing corrosion. It recommends using mono or fibril polypropylene fibers for industrial concrete floors to enhance long-term durability.
Utilization of polymer fiber reinforced concrete pavementHARSHIL PATEL
The document discusses the utilization of polymer fiber reinforced concrete for pavement applications. It begins with an introduction to traditional bituminous pavements and describes how polymer fiber reinforced concrete (PFRC) is a more sustainable alternative. It then provides details on the components of PFRC, including the concrete mix and various polymer fibers that can be used. The document outlines the design and construction process for PFRC pavements. It reviews literature on fiber reinforced polymers and concludes that PFRC requires specific design but can reduce maintenance costs while providing a more durable pavement compared to traditional materials.
Optimization of percentages of steel and glass fiber reinforced concreteeSAT Journals
Abstract Cementitious matrices are the fragile materials that possess a low tensile strength. The addition of fibers randomly distributed in these matrices improves their resistance to cracking, substantially. However, the incorporation of fibers into a plain concrete disrupts the granular skeleton and quickly causes problems of mixing as a result of the loss of mixture workability that will be translated into a difficult concrete casting in site. This study was concerned on the one hand with optimizing the fibers reinforced concrete mixes in the fresh state, and on the other hand with assessing the mechanical behaviour of this mixture in the hardened state, in order to establish a compromise between the two states . In this paper optimization of fibers by using different percentages in steel and glass fiber reinforced concrete of grade M 70 have been studied. It optimizes 1.5% for steel Fiber content and 1% for glass fiber content by the volume of cement is used in concrete. Keywords: fibers, fragile materials, cracking, substantially
Steel fibre reinforced concrete samson adesope & yared aseffaSamsonFemiAdesope
Fibre has been in existence as far back as era ancient time, in the past the horsehair and straw were using in mudbrick. In early 1900s the use of asbestos fibre in concrete material was introduced but it has limitation due to its hazard on human health. In 1950s concept of composite material was adopted in concrete work in which fibre is one of the them but it has not been widely used nowadays as a reinforced material in concrete. In early 1960s in the United States, investigation was firstly made to assess the potential of steel fibres as a reinforcement for concrete. Ever since then, a series of researches have been performed on fibres which steel and glass are major considerations
The document discusses fiber reinforced concrete (FRC), including different types of fibers used (steel, glass, synthetic), their properties, and applications. Steel fiber reinforced concrete uses thin steel wires to improve structural strength and reduce cracking. Glass fiber reinforced concrete uses fiberglass for insulation and crack prevention. Synthetic fibers like plastic and nylon improve properties like pumpability and prevent cracking and spalling. FRC provides benefits like increased tensile strength, energy absorption, impact resistance, and wear resistance. Common uses include highways, hydraulic structures, and precast applications.
This document provides an overview of glass fiber reinforced concrete (GFRC). It discusses what concrete and fiber reinforced concrete are, as well as the history and types of fiber reinforced concrete. Glass fiber concrete is described as a composite material made of sand, cement, polymer, water, glass fibers and other admixtures. The document outlines the properties, applications, advantages and structural characteristics of GFRC. It concludes that GFRC provides benefits like high strength, crack resistance, impact resistance and durability compared to conventional concrete.
IRJET- Techno-Economical Analysis of Gabion Retaining Wall Against Convention...IRJET Journal
This document presents a techno-economic analysis comparing gabion retaining walls to conventional retaining walls. It analyzes rubble masonry gravity walls, RCC cantilever walls, RCC counterfort walls, and gabion walls. Design parameters like height, backfill, foundation, and loads are kept constant. The designs are then compared based on required cross-section and steel. The analysis finds that gabion walls prove more economical due to using locally available materials, which makes construction faster and cheaper compared to other wall types. Key advantages of gabion walls identified are easy drainage, flexibility to tolerate differential settlement, speed of construction, ability to use waste materials, and no hydrostatic pressure buildup.
A Study on Properties of Self Compacting Concrete with Slag as Coarse AggregateIRJET Journal
This document presents a study on the properties of self-compacting concrete using blast furnace slag as a coarse aggregate replacement. The study aims to determine the strength characteristics of slag for application in self-compacting concrete. Specimens with 0%, 10%, 20%, 40%, and 60% replacement of natural coarse aggregate with slag aggregate were produced and tested. Workability, compressive strength, and split tensile strength tests were conducted on the specimens. The results were then compared to code requirements to evaluate the performance of self-compacting concrete with slag aggregate replacement.
This document discusses fiber reinforced concrete and different types of fibers that can be used. It describes various fiber materials including steel, glass, synthetic polymers like polypropylene and nylon, carbon, and natural fibers. For each type of fiber, the document discusses their properties, manufacturing methods, how they work to improve concrete properties, and common applications. Polypropylene fibers are discussed in more depth as one of the most common and cost-effective synthetic fiber options for concrete reinforcement.
AN INVESTIGATION ON GLASS FIBRE REINFORCED CONCRETE USING ECO SANDVikaas Balaji
WE HAVE FOUND THAT BY ADDING 2% AND 4% OF GLASS FIBRE IN CONCRETE MIX AND INSTEAD OF RIVER SAND AND M-SAND WE HAVE USED ECO SAND TO ACHIEVE STRENGTH IN CONCRETE IN RESPECTIVE DAYS (7 AND 28 DAYS)
Unit-1 Lecture-2 - Light Weight Construction Materials by Brig. S.K. SharmaTHE NORTHCAP UNIVERSITY
This document discusses light weight construction materials, specifically foamed concrete. It describes four types of foamed concrete based on density and their typical uses. Densities range from 300-600 kg/m3 for thermal insulation up to 1200-1600 kg/m3 for precast panels. Advantages include economy, durability, thermal insulation, fire safety and wide range of applications. Disadvantages include reduced strength at lower densities and specialized tools needed for fastening. It also categorizes light-weight concretes based on aggregates and concludes that structural light-weight concrete combining strength and lightness will have economic advantages.
IRJET- Performance of Basalt Fiber in ConcreteIRJET Journal
The document discusses the performance of basalt fiber in concrete. It begins with an abstract that summarizes the experimental investigation conducted on basalt fiber concrete. Specimens like cubes, cylinders, and beams were cast using M25 grade concrete with locally available materials. The addition of basalt fibers was studied to determine its effect on the compressive, split tensile, and flexural strengths of the concrete. The experimental results showed that the addition of basalt fiber enhanced the properties of the concrete.
The document then discusses the materials used - cement, fine aggregate, coarse aggregate, water, and basalt fiber. The mix design for M25 grade concrete is presented. The experimental program involved workability, compressive strength,
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,
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.
Fiber reinforced concrete is a composite material made of cement, mortar or concrete with closely spaced fibers added. The fibers, which can include glass, carbon, polypropylene or nylon, increase the tensile strength and crack resistance of the concrete.
Fiberglass reinforced concrete (GFRC) specifically uses glass fibers in the mix. It provides an ultra-strong yet flexible concrete that protects against environmental damage. GFRC is lightweight, durable, and can be cast into complex shapes.
Some key properties and applications of fiber reinforced concrete include increased tensile strength, impact resistance, limited crack growth, use in pavement overlays, industrial floors, bridges, canal linings, blast resistant structures, and pre
Hello readers,
In this presentation, I am sharing Fiber Reinforced Concrete.
The following parameters are discussed in the presentation:
History.
Why Fibers are used?
Type of fibers.
Mechanical properties of FRC.
Factors affecting properties of FRC.
Advantages and Disadvantages of FRC.
Applications of FRC.
Ferrocement is a thin cement composite material reinforced with closely spaced layers of wire mesh. It consists of a cement mortar matrix reinforced with small diameter wire mesh. The mortar provides mass while the wire mesh provides tensile strength and ductility. Ferrocement can be constructed using a variety of techniques and has applications in marine structures, water and sanitation infrastructure, agriculture, housing and rural energy due to advantages like strength, ductility, impact resistance and impermeability.
Reinforced concrete is a composite material that combines concrete's low tensile strength with reinforcement bars' high tensile strength. The reinforcement, usually steel rebar, is embedded in concrete before it sets to resist tensile stresses that could cause cracking or failure. Modern reinforced concrete can use varied reinforcing materials like steel, polymers, or composites alone or with rebar. Reinforced concrete provides strength and durability for construction.
The document discusses the use of fiber reinforced concrete (FRC) in industrial floors. It begins with an introduction to the characteristics and requirements of industrial floors, including strength, durability, and resistance to impacts and chemicals. Next, it describes the properties of FRC and how fibers improve the tensile strength and ductility of concrete. The document then compares the properties of FRC and conventional concrete, finding that FRC has higher strength, durability at high temperatures, and crack resistance. It presents a case study of an industrial floor construction project in New Zealand that successfully used steel fiber reinforced concrete.
This document discusses various types of admixtures that are added to concrete to modify its properties. It describes 15 types of admixtures classified according to their function, including plasticizers, superplasticizers, retarders, accelerators, air-entraining agents, and pozzolanic materials. Common chemical admixtures are discussed in more detail, along with their effects on properties of fresh and hardened concrete. Mineral admixtures like fly ash, blast furnace slag, rice husk ash, and silica fume are also summarized in terms of their composition and impact on improving concrete quality and durability.
Mono and Fibril Brand Microsynthetic Fibres for Industrial FloorsCihan Erdoğan
This document discusses the use of polypropylene microfibers in concrete to improve durability, specifically for industrial concrete floors. It provides background on the history of fiber reinforced concrete and defines different types of microsynthetic fibers, including monofilament and fibrillated fibers. The document explains that polypropylene fibers improve durability by reducing shrinkage cracking and permeability, thus preventing corrosion. It recommends using mono or fibril polypropylene fibers for industrial concrete floors to enhance long-term durability.
Utilization of polymer fiber reinforced concrete pavementHARSHIL PATEL
The document discusses the utilization of polymer fiber reinforced concrete for pavement applications. It begins with an introduction to traditional bituminous pavements and describes how polymer fiber reinforced concrete (PFRC) is a more sustainable alternative. It then provides details on the components of PFRC, including the concrete mix and various polymer fibers that can be used. The document outlines the design and construction process for PFRC pavements. It reviews literature on fiber reinforced polymers and concludes that PFRC requires specific design but can reduce maintenance costs while providing a more durable pavement compared to traditional materials.
Optimization of percentages of steel and glass fiber reinforced concreteeSAT Journals
Abstract Cementitious matrices are the fragile materials that possess a low tensile strength. The addition of fibers randomly distributed in these matrices improves their resistance to cracking, substantially. However, the incorporation of fibers into a plain concrete disrupts the granular skeleton and quickly causes problems of mixing as a result of the loss of mixture workability that will be translated into a difficult concrete casting in site. This study was concerned on the one hand with optimizing the fibers reinforced concrete mixes in the fresh state, and on the other hand with assessing the mechanical behaviour of this mixture in the hardened state, in order to establish a compromise between the two states . In this paper optimization of fibers by using different percentages in steel and glass fiber reinforced concrete of grade M 70 have been studied. It optimizes 1.5% for steel Fiber content and 1% for glass fiber content by the volume of cement is used in concrete. Keywords: fibers, fragile materials, cracking, substantially
Steel fibre reinforced concrete samson adesope & yared aseffaSamsonFemiAdesope
Fibre has been in existence as far back as era ancient time, in the past the horsehair and straw were using in mudbrick. In early 1900s the use of asbestos fibre in concrete material was introduced but it has limitation due to its hazard on human health. In 1950s concept of composite material was adopted in concrete work in which fibre is one of the them but it has not been widely used nowadays as a reinforced material in concrete. In early 1960s in the United States, investigation was firstly made to assess the potential of steel fibres as a reinforcement for concrete. Ever since then, a series of researches have been performed on fibres which steel and glass are major considerations
The document discusses fiber reinforced concrete (FRC), including different types of fibers used (steel, glass, synthetic), their properties, and applications. Steel fiber reinforced concrete uses thin steel wires to improve structural strength and reduce cracking. Glass fiber reinforced concrete uses fiberglass for insulation and crack prevention. Synthetic fibers like plastic and nylon improve properties like pumpability and prevent cracking and spalling. FRC provides benefits like increased tensile strength, energy absorption, impact resistance, and wear resistance. Common uses include highways, hydraulic structures, and precast applications.
This document provides an overview of glass fiber reinforced concrete (GFRC). It discusses what concrete and fiber reinforced concrete are, as well as the history and types of fiber reinforced concrete. Glass fiber concrete is described as a composite material made of sand, cement, polymer, water, glass fibers and other admixtures. The document outlines the properties, applications, advantages and structural characteristics of GFRC. It concludes that GFRC provides benefits like high strength, crack resistance, impact resistance and durability compared to conventional concrete.
IRJET- Techno-Economical Analysis of Gabion Retaining Wall Against Convention...IRJET Journal
This document presents a techno-economic analysis comparing gabion retaining walls to conventional retaining walls. It analyzes rubble masonry gravity walls, RCC cantilever walls, RCC counterfort walls, and gabion walls. Design parameters like height, backfill, foundation, and loads are kept constant. The designs are then compared based on required cross-section and steel. The analysis finds that gabion walls prove more economical due to using locally available materials, which makes construction faster and cheaper compared to other wall types. Key advantages of gabion walls identified are easy drainage, flexibility to tolerate differential settlement, speed of construction, ability to use waste materials, and no hydrostatic pressure buildup.
A Study on Properties of Self Compacting Concrete with Slag as Coarse AggregateIRJET Journal
This document presents a study on the properties of self-compacting concrete using blast furnace slag as a coarse aggregate replacement. The study aims to determine the strength characteristics of slag for application in self-compacting concrete. Specimens with 0%, 10%, 20%, 40%, and 60% replacement of natural coarse aggregate with slag aggregate were produced and tested. Workability, compressive strength, and split tensile strength tests were conducted on the specimens. The results were then compared to code requirements to evaluate the performance of self-compacting concrete with slag aggregate replacement.
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.
Study on Alccofine based High Strength Self-compacting Fibrous Concrete- A re...IRJET Journal
This document provides a review of research on alccofine-based high strength self-compacting fibrous concrete. It begins with an introduction to high strength concrete, fibrous concrete, self-compacting concrete, and the benefits of fibrous reinforced self-compacting concrete. It then summarizes 13 research papers on topics including replacing aggregates with waste materials, using hybrid fibers, determining optimal fiber contents, and using mineral admixtures like fly ash and alccofine. The conclusion discusses how alccofine can increase self-compatibility and early strength of self-compacting concrete mixes and how fibers can improve tensile strength, ductility, and crack resistance.
Modeling of Interlocking Soil Stabilized Bricks for Improved Wall Constructio...IRJET Journal
This document summarizes research on modeling interlocking soil-stabilized bricks to improve wall construction flexibility and alignment accuracy. Key points:
- Interlocking bricks do not require mortar, instead connecting through positive and negative "frogs" on each brick. This allows faster, more flexible construction compared to traditional bricks.
- Researchers designed a mold to produce customized interlocking bricks meeting accuracy standards for wall alignment. Compressive strength testing of sample bricks produced an average strength of 11.33 N/mm2.
- Interlocking bricks have advantages over traditional bricks like lower cement use, faster construction, earthquake resistance from mortar-less connections, and cost savings. Disadvantages include potential insect/ant access
1. The document discusses various types of special concretes including lightweight concrete, foam concrete, self-compacting concrete, vacuum concrete, fibre reinforced concrete, ferrocement, ready mix concrete, slurry infiltrated fibre concrete (SIFCON), and shotcrete.
2. Lightweight concrete uses lightweight aggregates like shale, clay, or slate to reduce density while maintaining strength. Foam concrete is made by injecting air or gas into the mix to create a cellular structure.
3. Self-compacting concrete can be placed without vibration due to its fluidity. Vacuum concrete has water removed using vacuum mats to increase strength.
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.
Case Study on Glass Fibre Reinforced ConcreteIRJET Journal
This case study examines the use of glass fiber reinforced concrete (GFRC). Tests were conducted on concrete with varying amounts of glass fiber (0-3% by weight) to determine compressive and flexural strength properties. The 7-day and 28-day compressive strength generally increased as the glass fiber content increased from 0-1%, with strengths up to 27.8% higher than normal concrete. Flexural strength also improved with the addition of glass fibers. The glass fibers improved the concrete's strength properties by holding the material together and reducing cracking. In conclusion, GFRC showed 20-25% increases in compressive, flexural, and splitting tensile strengths compared to normal concrete, demonstrating its potential for use in impact
Effect of Glass Fiber on Strength and Durability of ConcreteIRJET Journal
The document discusses a study on the effect of adding glass fibers to concrete in varying amounts. Glass fibers are added to concrete to improve its compressive strength, tensile strength, and durability. The study tests concrete samples with 0%, 0.25%, 0.5%, 0.75%, 1%, and 1.5% glass fiber content. The samples are cured in water and a sulfuric acid solution to evaluate the impact on strength and durability. Previous research has found that glass fibers improve the mechanical properties of concrete, but the optimal fiber amount can vary depending on the concrete grade and application. The goal of this study is to determine how different glass fiber percentages affect the compressive strength, split tensile strength, and
STRENGTH STUDIES OF PAVEMENTS WITH FLY ASH AND STEEL FIBER AS REPLACING CEMENTIRJET Journal
This document discusses a study on the strength properties of concrete containing fly ash and steel fibers. Fly ash is a byproduct of coal combustion in thermal power plants in India. Using fly ash to partially replace cement in concrete can help address the problem of fly ash disposal. The study aims to evaluate the compressive strength, flexural strength, tensile strength, and workability of concrete with 10-30% fly ash replacement and 0.5-1.5% steel fiber addition. Previous research found that fly ash and steel fibers can increase the strength and durability of concrete. The current study tests concrete mixtures to analyze the effect of varying fly ash and steel fiber content on different concrete properties.
STRENGTH STUDIES OF PAVEMENTS WITH FLY ASH AND STEEL FIBER AS REPLACING CEMENTIRJET Journal
This document discusses a study on the strength properties of concrete containing fly ash and steel fibers. Fly ash is a byproduct of coal combustion in thermal power plants in India. Using fly ash to partially replace cement in concrete can help address the problem of fly ash disposal. The study aims to evaluate the compressive strength, flexural strength, tensile strength, and workability of concrete with 10-30% fly ash replacement and 0.5-1.5% steel fiber addition. Previous research found that fly ash and steel fibers can increase the strength and durability of concrete. The current study tests concrete mixtures to analyze the effect of varying fly ash and steel fiber content on different concrete properties.
Non structural Light weight concrete using combined mix of expanded polystyre...IRJET Journal
This document discusses a study on producing lightweight concrete using a combination of expanded polystyrene beads and expanded clay aggregates. The study aims to develop an optimized mix design for M20 grade lightweight concrete. Various mixes were produced by replacing coarse aggregates with different percentages of expanded clay aggregates and polystyrene beads. The mixes were then tested to evaluate properties like compressive strength, thermal conductivity, and water absorption. The results showed that using fly ash and GGBS reduced water demand and shrinkage but also reduced compressive strength by 25-50%. In general, the lightweight concrete produced had a density less than 1800kg/m3 and compressive strengths up to 36.19MPa, making it a viable material for construction
IRJET - Experimental Study of Replacement of Ceramic Waste in Paver BlocksIRJET Journal
This study experimentally evaluated replacing ceramic waste as coarse aggregate in paver blocks. Ceramic waste from industries cannot be recycled and comprises 30% of total waste. Paver blocks were produced by replacing conventional coarse aggregate with 15%, 25%, 35%, and 45% ceramic waste by weight. Tests on compressive strength, impact strength, and water absorption were conducted on samples at 7, 14, and 28 days. Results showed compressive strength decreased with higher ceramic waste content but addition of silica fume and coconut fiber helped increase strength over time. Visual inspection found no cracks or flaws, indicating ceramic waste can successfully be used partially in paver blocks for effective waste recycling and utilization.
IRJET- Hybrid Building – A Combination of Conventional RCC and Ferrocement Te...IRJET Journal
This document summarizes research on a hybrid building technique that combines conventional reinforced concrete and ferrocement technology. Ferrocement is a type of reinforced concrete made of wire mesh, sand, water and cement that has high strength and versatility. It can be constructed with minimal skilled labor. The document reviews previous studies on the mechanical properties and seismic resistance of ferrocement. It also discusses using ferrocement panels and a lightweight truss system to create an affordable, earthquake resistant house. Research is cited on using blast furnace slag to partially replace sand in lightweight ferrocement beams to study their behavior under monotonic and repeated loading.
Applying Ferrocement Concept for Non- Gravity Weir Construction in Rural Area.IRJET Journal
This document summarizes a research paper on applying ferrocement concepts for non-gravity weir construction in rural areas. Ferrocement, which is a composite of iron mesh and cement mortar, is proposed as a more economical and time-effective alternative to reinforced concrete construction (RCC) of weirs. The document outlines the research methodology, which included analyzing the suitability of ferrocement, designing a non-gravity weir structure using ferrocement, and comparing the cost and time of construction to RCC. Key findings are that ferrocement has advantages of strength, durability, lower cost and shorter construction time compared to RCC. A model of the proposed ferrocement weir structure was
This document provides an outline and overview of information about gabion structures. It begins with general information, defining gabions as wire mesh cages filled with stones. It describes their characteristics of being flexible, permeable and economical. The document outlines their various uses including for gully control, riverbank protection and landslide control. It also discusses advantages such as being efficient, permanent and easy to construct. Two case studies are summarized that evaluate the performance of gabion structures for gully control and sediment retention.
IRJET- Experimental Study on Strength and Durability of Bamboo Reinforced...IRJET Journal
The document presents the results of an experimental study on the flexural strength of bamboo reinforced concrete beams and the durability of bamboo as structural reinforcement.
Bamboo reinforced concrete beams were cast using normal bamboo and modified bamboo reinforcement at 1.25% and 2.50% reinforcement ratios. The flexural strength of the beams increased with curing time and the beams with 2.50% modified bamboo reinforcement performed best.
Bamboo splints with and without bitumen coating were subjected to alternate wetting and drying in water, magnesium sulphate, and potassium chloride solutions. The tensile strength of untreated bamboo splints reduced significantly after 56 cycles of exposure, indicating reduced durability. Treated bamboo performed better
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.
Effect Of Polyster Fiber And Ceramic Waste As A Replacement Ingredients In Co...IRJET Journal
This document presents a study on the effect of adding polyester fiber and ceramic waste as replacements in concrete. The study tested concrete mixtures with polyester fiber additions of 0.5%, 1%, 1.5%, and 2% by weight of cement and ceramic waste additions of 10%, 20%, 30%, and 40% as a replacement for natural coarse aggregate. The concrete mixtures were tested for their workability and mechanical properties like compressive and flexural strength at curing periods of 7 and 28 days. The results showed improvements in the compressive and flexural strengths of concrete with increasing polyester fiber and ceramic waste additions up to certain limits.
Similar to IRJET- Engineering Feasibility of Gabion Structures Over Reinforced Concrete Structures (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.
Redefining brain tumor segmentation: a cutting-edge convolutional neural netw...IJECEIAES
Medical image analysis has witnessed significant advancements with deep learning techniques. In the domain of brain tumor segmentation, the ability to
precisely delineate tumor boundaries from magnetic resonance imaging (MRI)
scans holds profound implications for diagnosis. This study presents an ensemble convolutional neural network (CNN) with transfer learning, integrating
the state-of-the-art Deeplabv3+ architecture with the ResNet18 backbone. The
model is rigorously trained and evaluated, exhibiting remarkable performance
metrics, including an impressive global accuracy of 99.286%, a high-class accuracy of 82.191%, a mean intersection over union (IoU) of 79.900%, a weighted
IoU of 98.620%, and a Boundary F1 (BF) score of 83.303%. Notably, a detailed comparative analysis with existing methods showcases the superiority of
our proposed model. These findings underscore the model’s competence in precise brain tumor localization, underscoring its potential to revolutionize medical
image analysis and enhance healthcare outcomes. This research paves the way
for future exploration and optimization of advanced CNN models in medical
imaging, emphasizing addressing false positives and resource efficiency.
An improved modulation technique suitable for a three level flying capacitor ...IJECEIAES
This research paper introduces an innovative modulation technique for controlling a 3-level flying capacitor multilevel inverter (FCMLI), aiming to streamline the modulation process in contrast to conventional methods. The proposed
simplified modulation technique paves the way for more straightforward and
efficient control of multilevel inverters, enabling their widespread adoption and
integration into modern power electronic systems. Through the amalgamation of
sinusoidal pulse width modulation (SPWM) with a high-frequency square wave
pulse, this controlling technique attains energy equilibrium across the coupling
capacitor. The modulation scheme incorporates a simplified switching pattern
and a decreased count of voltage references, thereby simplifying the control
algorithm.
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.
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.
Embedded machine learning-based road conditions and driving behavior monitoringIJECEIAES
Car accident rates have increased in recent years, resulting in losses in human lives, properties, and other financial costs. An embedded machine learning-based system is developed to address this critical issue. The system can monitor road conditions, detect driving patterns, and identify aggressive driving behaviors. The system is based on neural networks trained on a comprehensive dataset of driving events, driving styles, and road conditions. The system effectively detects potential risks and helps mitigate the frequency and impact of accidents. The primary goal is to ensure the safety of drivers and vehicles. Collecting data involved gathering information on three key road events: normal street and normal drive, speed bumps, circular yellow speed bumps, and three aggressive driving actions: sudden start, sudden stop, and sudden entry. The gathered data is processed and analyzed using a machine learning system designed for limited power and memory devices. The developed system resulted in 91.9% accuracy, 93.6% precision, and 92% recall. The achieved inference time on an Arduino Nano 33 BLE Sense with a 32-bit CPU running at 64 MHz is 34 ms and requires 2.6 kB peak RAM and 139.9 kB program flash memory, making it suitable for resource-constrained embedded systems.
Applications of artificial Intelligence in Mechanical Engineering.pdfAtif Razi
Historically, mechanical engineering has relied heavily on human expertise and empirical methods to solve complex problems. With the introduction of computer-aided design (CAD) and finite element analysis (FEA), the field took its first steps towards digitization. These tools allowed engineers to simulate and analyze mechanical systems with greater accuracy and efficiency. However, the sheer volume of data generated by modern engineering systems and the increasing complexity of these systems have necessitated more advanced analytical tools, paving the way for AI.
AI offers the capability to process vast amounts of data, identify patterns, and make predictions with a level of speed and accuracy unattainable by traditional methods. This has profound implications for mechanical engineering, enabling more efficient design processes, predictive maintenance strategies, and optimized manufacturing operations. AI-driven tools can learn from historical data, adapt to new information, and continuously improve their performance, making them invaluable in tackling the multifaceted challenges of modern mechanical engineering.
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
Null Bangalore | Pentesters Approach to AWS IAMDivyanshu
#Abstract:
- Learn more about the real-world methods for auditing AWS IAM (Identity and Access Management) as a pentester. So let us proceed with a brief discussion of IAM as well as some typical misconfigurations and their potential exploits in order to reinforce the understanding of IAM security best practices.
- Gain actionable insights into AWS IAM policies and roles, using hands on approach.
#Prerequisites:
- Basic understanding of AWS services and architecture
- Familiarity with cloud security concepts
- Experience using the AWS Management Console or AWS CLI.
- For hands on lab create account on [killercoda.com](https://killercoda.com/cloudsecurity-scenario/)
# Scenario Covered:
- Basics of IAM in AWS
- Implementing IAM Policies with Least Privilege to Manage S3 Bucket
- Objective: Create an S3 bucket with least privilege IAM policy and validate access.
- Steps:
- Create S3 bucket.
- Attach least privilege policy to IAM user.
- Validate access.
- Exploiting IAM PassRole Misconfiguration
-Allows a user to pass a specific IAM role to an AWS service (ec2), typically used for service access delegation. Then exploit PassRole Misconfiguration granting unauthorized access to sensitive resources.
- Objective: Demonstrate how a PassRole misconfiguration can grant unauthorized access.
- Steps:
- Allow user to pass IAM role to EC2.
- Exploit misconfiguration for unauthorized access.
- Access sensitive resources.
- Exploiting IAM AssumeRole Misconfiguration with Overly Permissive Role
- An overly permissive IAM role configuration can lead to privilege escalation by creating a role with administrative privileges and allow a user to assume this role.
- Objective: Show how overly permissive IAM roles can lead to privilege escalation.
- Steps:
- Create role with administrative privileges.
- Allow user to assume the role.
- Perform administrative actions.
- Differentiation between PassRole vs AssumeRole
Try at [killercoda.com](https://killercoda.com/cloudsecurity-scenario/)
Batteries -Introduction – Types of Batteries – discharging and charging of battery - characteristics of battery –battery rating- various tests on battery- – Primary battery: silver button cell- Secondary battery :Ni-Cd battery-modern battery: lithium ion battery-maintenance of batteries-choices of batteries for electric vehicle applications.
Fuel Cells: Introduction- importance and classification of fuel cells - description, principle, components, applications of fuel cells: H2-O2 fuel cell, alkaline fuel cell, molten carbonate fuel cell and direct methanol fuel cells.