Characterisation of geo polymer binders ppt
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The document discusses geopolymers, which are synthetic materials made from industrial byproducts like fly ash, blast furnace slag, or metakaolin. Various analytical techniques are used to characterize geopolymers, including XRF, XRD, SEM, FTIR, DSC, and TGA. Fly ash is commonly used to produce geopolymers and is shown to have an amorphous structure consisting of spherical particles when analyzed under SEM. FTIR analysis demonstrates differences between raw fly ash and geopolymer paste spectra. DSC and TGA are used to measure properties like glass transition temperatures and mass loss over a range of heating temperatures. The document examines the properties of class C and class F
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30 years in geopolymer applications
This document summarizes the development of geopolymer applications over 30 years by Prof. Joseph Davidovits and his research organizations. It describes early successes with fire-resistant wood panels in the 1970s, followed by applications of geopolymers in ceramics, bricks, and cement from the 1970s-1980s. A key innovation was developing a low-temperature process to transform kaolinite clay into a geopolymer binder. This led to liquid geopolymer binders in the 1980s and the invention of high-strength geopolymer cement in 1983 through a collaboration between Prof. Davidovits and Lone Star Industries.
Geopolymers and water treatment
Geopolymers have potential to be used as adsorbents for water treatment applications similar to zeolites. They can remove heavy metals and other ions from water through cation exchange and adsorption onto their surface. The document discusses how geopolymers can be synthesized from various source materials like fly ash or metakaolin, and outlines methods used to prepare geopolymer adsorbents. Preliminary results show that geopolymers have higher adsorption capacities and surface areas than the raw source materials. Further research is needed to optimize synthesis conditions and evaluate performance for different water matrices.
GPC PROJECT audit 2 Final
This document discusses geopolymer concrete as an alternative to ordinary Portland cement concrete. Some key points:
- Geopolymer concrete has the potential to reduce CO2 emissions by 80% compared to OPC as it uses industrial byproducts like fly ash rather than cement. It is also more durable and helps protect water resources.
- The document outlines the process for making and curing geopolymer concrete specimens to test for properties like compressive strength and sorptivity. Testing shows geopolymer concrete has lower heat release and does not require water as a bonding agent.
- The conclusion is that geopolymer concrete performs better than OPC concrete in terms of sustainability and durability, making it a promising alternative for
EXPERIMENTAL STUDIES ON PROPERTIES OF GEOPOLYMER CONCRETE WITH GGBS AND FLY ASH
Objective: This paper manages the quality properties of geopolymer concrete. The primary point of this anticipate is to utilize ground granulated impact heater slag and fly fiery remains set up of common Portland concrete, keeping in mind the end goal to decrease carbon dioxide emanation. Method: From this, we can look at the properties of geopolymer concrete with bond concrete. The fixings utilized as a part of this anticipate are GGBS and Fly cinder. Sodium hydroxide and sodium silicate are utilized as basic activators. The molarity of sodium hydroxide is 8M and 10M. The proportion of soluble activators is 1:2. Calcium silicate is framed when GGBS gets responded with sodium hydroxide and sodium silicate. This calcium silicate goes about as a cover for coarse total and fine total. Findings: The response is said to be exothermic since the warmth is developed when calcium silicate is framed. Henceforth, the underlying warmth is not required to begin the polymerization procedure. The fly fiery remains and GGBS are supplanted in 5 distinctive extents (100% GGBS, 75% GGBS &25% Fly cider, half GGBS &50% Fly slag, 25% GGBS&75% Fly powder,). The curing is finished by putting examples at room temperature. Application: The examples are tried at 7 years old and 28 days, the test incorporates compressive quality, split elasticity, and flexure quality to contrast the outcomes and bond concrete.
Geopolymer concrete
The document discusses the potential for geopolymer concrete to reduce CO2 emissions from the concrete industry. Geopolymer concrete is made from industrial byproducts like fly ash rather than Portland cement, and can offer benefits like higher strength, fire resistance, and durability while reducing CO2 by up to 90% compared to ordinary Portland cement concrete. The document outlines the production process of geopolymer concrete and its advantages over traditional concrete, as well as opportunities for its future use in infrastructure projects.
Shear strength of compacted soils using geopolymer
To assess the shear strength development of soils using geopolymer in the three-ring direct shear testing device, the results from the laboratory tests will be compared on a same graph to figure out shear strength behavior between water only and water plus 10% geopolymer.
Geopolymer Concrete
The reduced CO2 emissions of Geopolymer cements make them a good alternative to Ordinary Portland Cement.
Produces a substance that is comparable to or better than traditional cements with respect to most properties.
Geopolymer concrete has excellent properties within both acid and salt environments
Low-calcium fly ash-based geopolymer concrete has excellent compressive strength and is suitable for Structural applications.
GEOPOLYMER CONCRETE WITH SELF COMPACTING: A REVIEW
In this construction world, Geopolymer concrete is a special concrete which doesn't
requires the Ordinary Portland Cement and also reduces the emission of carbon-dioxide. The
Geopolymer Concrete is made up of industrial by-products (which contains more Silica and
Alumina) and activated with the help of Alkaline solution (combination of sodium hydroxide &
sodium silicate or potassium hydroxide & potassium silicate). The high viscosity nature of
Geopolymer Concrete had the ability to fail due to lack of compaction. In improvising the
issue, Self Compacting Geopolymer Concrete has been introduced. The SCGC doesn't require
any additional compaction it will flow and compacted by its own weight. This concrete is made
up of industrial by-products like Fly ash, GGBFS and Silica Fume and activated with alkaline
solution. The earlier research was mostly on Fly ash based SCGC. In few research works Fly
ash was partially replaced with GGBS and Silica Fume. They evaluated the compressive
strength of concrete with varying molarties of NaOH; curing time and curing temperature. The
flexural behavior of the concrete also examined. The Fly ash based SCGC was got high
compressive strength in heat curing as well as low compressive strength in ambient curing.
The presence of GGBS improves the strength in ambient curing. For aiming the high strength
in ambient curing Fly ash will be completely replace and examine with different mineral
admixtures.
Recommended
30 years in geopolymer applications
This document summarizes the development of geopolymer applications over 30 years by Prof. Joseph Davidovits and his research organizations. It describes early successes with fire-resistant wood panels in the 1970s, followed by applications of geopolymers in ceramics, bricks, and cement from the 1970s-1980s. A key innovation was developing a low-temperature process to transform kaolinite clay into a geopolymer binder. This led to liquid geopolymer binders in the 1980s and the invention of high-strength geopolymer cement in 1983 through a collaboration between Prof. Davidovits and Lone Star Industries.
Geopolymers and water treatment
Geopolymers have potential to be used as adsorbents for water treatment applications similar to zeolites. They can remove heavy metals and other ions from water through cation exchange and adsorption onto their surface. The document discusses how geopolymers can be synthesized from various source materials like fly ash or metakaolin, and outlines methods used to prepare geopolymer adsorbents. Preliminary results show that geopolymers have higher adsorption capacities and surface areas than the raw source materials. Further research is needed to optimize synthesis conditions and evaluate performance for different water matrices.
GPC PROJECT audit 2 Final
This document discusses geopolymer concrete as an alternative to ordinary Portland cement concrete. Some key points:
- Geopolymer concrete has the potential to reduce CO2 emissions by 80% compared to OPC as it uses industrial byproducts like fly ash rather than cement. It is also more durable and helps protect water resources.
- The document outlines the process for making and curing geopolymer concrete specimens to test for properties like compressive strength and sorptivity. Testing shows geopolymer concrete has lower heat release and does not require water as a bonding agent.
- The conclusion is that geopolymer concrete performs better than OPC concrete in terms of sustainability and durability, making it a promising alternative for
EXPERIMENTAL STUDIES ON PROPERTIES OF GEOPOLYMER CONCRETE WITH GGBS AND FLY ASH
Objective: This paper manages the quality properties of geopolymer concrete. The primary point of this anticipate is to utilize ground granulated impact heater slag and fly fiery remains set up of common Portland concrete, keeping in mind the end goal to decrease carbon dioxide emanation. Method: From this, we can look at the properties of geopolymer concrete with bond concrete. The fixings utilized as a part of this anticipate are GGBS and Fly cinder. Sodium hydroxide and sodium silicate are utilized as basic activators. The molarity of sodium hydroxide is 8M and 10M. The proportion of soluble activators is 1:2. Calcium silicate is framed when GGBS gets responded with sodium hydroxide and sodium silicate. This calcium silicate goes about as a cover for coarse total and fine total. Findings: The response is said to be exothermic since the warmth is developed when calcium silicate is framed. Henceforth, the underlying warmth is not required to begin the polymerization procedure. The fly fiery remains and GGBS are supplanted in 5 distinctive extents (100% GGBS, 75% GGBS &25% Fly cider, half GGBS &50% Fly slag, 25% GGBS&75% Fly powder,). The curing is finished by putting examples at room temperature. Application: The examples are tried at 7 years old and 28 days, the test incorporates compressive quality, split elasticity, and flexure quality to contrast the outcomes and bond concrete.
Geopolymer concrete
The document discusses the potential for geopolymer concrete to reduce CO2 emissions from the concrete industry. Geopolymer concrete is made from industrial byproducts like fly ash rather than Portland cement, and can offer benefits like higher strength, fire resistance, and durability while reducing CO2 by up to 90% compared to ordinary Portland cement concrete. The document outlines the production process of geopolymer concrete and its advantages over traditional concrete, as well as opportunities for its future use in infrastructure projects.
Shear strength of compacted soils using geopolymer
To assess the shear strength development of soils using geopolymer in the three-ring direct shear testing device, the results from the laboratory tests will be compared on a same graph to figure out shear strength behavior between water only and water plus 10% geopolymer.
Geopolymer Concrete
The reduced CO2 emissions of Geopolymer cements make them a good alternative to Ordinary Portland Cement.
Produces a substance that is comparable to or better than traditional cements with respect to most properties.
Geopolymer concrete has excellent properties within both acid and salt environments
Low-calcium fly ash-based geopolymer concrete has excellent compressive strength and is suitable for Structural applications.
GEOPOLYMER CONCRETE WITH SELF COMPACTING: A REVIEW
In this construction world, Geopolymer concrete is a special concrete which doesn't
requires the Ordinary Portland Cement and also reduces the emission of carbon-dioxide. The
Geopolymer Concrete is made up of industrial by-products (which contains more Silica and
Alumina) and activated with the help of Alkaline solution (combination of sodium hydroxide &
sodium silicate or potassium hydroxide & potassium silicate). The high viscosity nature of
Geopolymer Concrete had the ability to fail due to lack of compaction. In improvising the
issue, Self Compacting Geopolymer Concrete has been introduced. The SCGC doesn't require
any additional compaction it will flow and compacted by its own weight. This concrete is made
up of industrial by-products like Fly ash, GGBFS and Silica Fume and activated with alkaline
solution. The earlier research was mostly on Fly ash based SCGC. In few research works Fly
ash was partially replaced with GGBS and Silica Fume. They evaluated the compressive
strength of concrete with varying molarties of NaOH; curing time and curing temperature. The
flexural behavior of the concrete also examined. The Fly ash based SCGC was got high
compressive strength in heat curing as well as low compressive strength in ambient curing.
The presence of GGBS improves the strength in ambient curing. For aiming the high strength
in ambient curing Fly ash will be completely replace and examine with different mineral
admixtures.
Ijciet 06 07_003
The document describes a study on the flexural behavior of reinforced geopolymer concrete beams partially replaced with recycled coarse aggregates. A total of 9 beams were cast and tested under two-point loading, including 3 conventional concrete beams and 6 geopolymer concrete beams with varying combinations of flyash, GGBS, and recycled aggregates. The load carrying capacity, deflection, cracking load, ultimate load, and crack widths were recorded and compared between the geopolymer and conventional beams. The study found that the load carrying capacity of the geopolymer beams was higher than the conventional beams, but decreased with increasing replacement of recycled aggregates.
Geopolymer
The document discusses geopolymer concrete, an alternative to ordinary Portland cement concrete. Geopolymer concrete is made from a geopolymer binder formed from fly ash and alkaline liquids instead of cement. It offers advantages like higher strength, lower permeability, greater heat and chemical resistance compared to ordinary concrete. Some applications include precast concrete, marine structures, and road construction. However, geopolymer concrete also faces hurdles like the need for specialized source materials and pre-mixing due to the hazardous chemicals used. Overall, it provides a more sustainable and durable concrete product.
Geopolymer concrete
The geopolymer cement is formed by polymerization process which involves the reaction between an aluminosilicate source material such as fly-ash, GGBS, etc. with an alkaline activator solutions.
STRENGTH AND DURABILITY STUDY OF GROUND GRANULATED BLAST FURNACE SLAG BASED G...
This document studies the strength and durability of ground granulated blast furnace slag (GGBS) based geopolymer concrete. The study aims to determine the compressive strength and durability parameters of GGBS concrete with varying molar concentrations of sodium hydroxide (NaOH) solutions. The results show that compressive strength increases with higher NaOH concentration from 5M to 8M. Rapid chloride permeability and water absorption tests also indicate improved durability. In conclusion, GGBS concrete provides higher strength than conventional concrete and has potential as a more sustainable alternative if setting time issues can be addressed.
Effect of alkali materials on geo polymer concrete
This document summarizes research on geopolymer concrete, which is an alternative to traditional Portland cement concrete. Geopolymer concrete uses industrial byproducts like fly ash instead of cement as the binder. When activated by an alkaline solution like sodium hydroxide and sodium silicate, fly ash undergoes a geopolymerization process forming a polymer binder. The document discusses factors that affect geopolymer concrete properties like curing temperature and time. It also summarizes previous studies examining different source materials and activators. The experimental study described used fly ash from a local cement corporation and activated it with a sodium hydroxide and sodium silicate solution to produce geopolymer concrete specimens.
Geopolymeric Building Materials
This document discusses geopolymeric building materials. It begins by introducing geopolymers as silico-aluminate materials formed through a natural process and their potential as green building materials. It then discusses the necessity of geopolymeric materials in India due to their lower CO2 emissions compared to Portland cement. The document outlines the main source materials used in geopolymer production such as fly ash and discusses various geopolymeric building materials including geopolymer cement, concrete, paver blocks, and bricks. It concludes by discussing the synergistic use of industrial wastes and potential economic and commercial benefits of geopolymeric materials.
COMPARATIVE STUDY OF EXPERIMENTAL AND ANALYTICAL RESULTS OF GEO POLYMER CON...
Geo polymer concrete is a recently developed construction material which is environment friendly and perhaps best alternative to conventional concrete. In the present scenario, where global warming is a big issue due to Co2 emissions, no cement concrete like Geo Polymer Concrete is the big boon for construction industry. The research work carried out on Geo Polymer Concrete and documented in the present paper is a step forward in the direction to encourage the development of Geo Polymer Concrete for its wide application in construction industry. The present paper describes experimental work and analytical work pertaining to Finite Element Analysis using ANSYS software to simulate the flexural behavior of Reinforced Geo Polymer Concrete Beams. The alkaline solution used for present study was the combination of sodium silicate and sodium hydroxide solution with the varying ratio of 2.50. NaoH solids with 97 - 98% purity is purchased from commercial source and mixed with water to make solution with a concentration of 16 molarity.
STUDY OF BEHAVIOUR OF GEO-POLYMER CONCRETE WITH RESPECT TO ITS MECHANICAL PRO...
The primary object of the work is to observe the mechanical properties of geopolymer
concrete with GGBS and FLYASH. Now-a-days the carbon oxide emission is a lot of within the
atmosphere, which leads to warming and atmospheric phenomenon. Hence, for the purpose of
reducing the emissions, the consequences of industrial waste are being used for geopolymer
concrete like GBBS and Flyash. Sodium hydroxide and Sodium Silicate (NAOH and Na2SiO3)
area unit used as basic activators. The molarity of Sodium hydroxide is 10M and 12M.The ratio
of basic activators are1:2.Having similar properties to cement concrete and attaining equal
strength, the geopolymer concrete reduces greenhouse emission. The proportions used are 100%
GGBS, 75% GGBS & 25% fly ash, 50% GGBS & 50% fly ash, 25% GGBS & 75% fly ash. The
ambient natural process at space temperature is completed for an amount of seven and twenty
eight days. The mechanical properties have been identified by compressive, flexural, split tensile
strength tests through which the results are compared for 10 M and 12 M.
Geopolymer concrete by shaswat das
Geopolymers are new materials for fire- and heat-resistant coatings and adhesives, medicinal applications, high-temperature ceramics, new binders for fire-resistant fiber composites, toxic and radioactive waste encapsulation and new cements for concrete.
Geopolymer concrete ppt
Geopolymer concrete is an innovative, eco-friendly construction material.
It is used as replacement of cement concrete.
In geopolymer concrete cement is not used as a binding material.
Fly ash, silica-fume, or GGBS, along with alkali solution are used as binders.
geopolymer concrete with M sand
This document provides an introduction and literature review on geopolymer concrete.
The introduction discusses how geopolymer concrete was developed to reduce the environmental impacts of ordinary Portland cement concrete production. It describes the key constituents of geopolymer concrete including alkaline liquids and fly ash source materials.
The literature review summarizes several past studies on geopolymer concrete. One study found geopolymer concrete has excellent compressive strength and durability properties making it suitable for structural applications. Replacement of river sand with manufactured sand in geopolymer concrete was shown to increase compressive, tensile, and flexural strengths. Heat curing was also found to increase geopolymer concrete strengths.
In summary, the document provides
Geopolymer concrete
Geopolymer concrete is made from fly ash and an alkaline solution, combining waste products into a useful material. Its setting mechanism depends on polymerization and it cures between 60-90 degrees Celsius. It is made by mixing fly ash aggregates with an alkaline activator solution of sodium or potassium hydroxide and silicate. The fresh concrete can be worked with for up to 120 minutes before setting and does not lose strength. It offers advantages over traditional concrete like lower carbon emissions, better strength and fire resistance, and excellent properties in acid and salt environments.
Experimental study on geopolymer concrete by using ggbs
Abstract
The demand of concrete is increasing day by day and Cement is used for satisfying the need of development of infrastructure facilities, 1 tone cement production generates 1 tone CO2, which adversely affect the environment . In order to reduce the use of OPC and CO2 generation, the new generation concrete has been developed such as GEOPOLYMER CONCRETE. It uses Fly ash and Alkaline Solution as their Binding Materials. Geopolymer requires Oven Curing in the varying range of 60C to 100C for a period of 24 to 96 hours.
The objective of the present work is to study the effect of GGBS in fly ash based Geopolymer concrete and to study the Effect of Oven Curing and Ambient room temperature curing on them. And By replacing fly ash from 0 to 100% with GGBS and inspecting the Fresh Properties and Hardened Concrete properties at 7 days. The casted cube will be cured at normal room temperature and at 700C Oven heat provision for 24 hours and to ascertain the behavior of concrete mixed with GGBS, thereby examining the changes of properties like Strength and Durability.
Keywords: Fly ash, GGBS, Alkaline Solution, strength, durability, utilization
Geopolymer Mortar Production Using Silica Waste as Raw Material
This document summarizes a study on producing geopolymer mortar using silica waste as a raw material. Some key findings:
- Silica waste was analyzed and found to contain 71% silicon dioxide, meeting requirements for use in geopolymer production. Leaching tests found heavy metal concentrations within regulatory standards.
- Particle size analysis was performed on silica waste and pure alumina. Silica waste was ground to a smaller particle size to improve quality.
- Mix designs with different ratios of silica waste, pure alumina, sodium hydroxide, and sodium silicate solution were tested. The ratio with 70% silica waste, 10% alumina, and 20% sodium hydroxide
Geopolymer concrete
This document provides information on geopolymer concrete (GPC) submitted by a group of students. It includes an introduction to GPC, which is an alternative to Portland cement concrete that uses industrial byproducts like fly ash. The document discusses the materials used in GPC including fly ash, aggregates, and alkaline activators. It presents the mix design for M20 grade GPC using different molarity alkaline activator solutions. Test results show increasing compressive strength with increasing molarity. Benefits of GPC include reduced CO2 emissions, use of waste materials, fire resistance, and acid resistance. Challenges include developing strength at ambient temperatures and standardization. The conclusion is that GPC is more suitable for pre
STRENGTH PROPERTIES ON FLY ASH BASED GEO POLYMER CONCRETE WITH ADMIXTURES
Due to increase in environmental problems of the construction industry alternative technologies are emerging. A concrete is used around the world is second only to water. The making of ordinary Portland cement support 5 to 7 percent of total green house gas emission. It also takes large amount of energy .Hence it is necessary to find alternative to cement .Fly ash is a product of coal procured from thermal power plant. It is also good in silicon and alumina. In this experiment the fly ash is used to prepare the geo polymer concrete.geopolymer is a material resulting from the reaction of source materials that is rich in aluminum and silicon. One such material is GEOPOLYMER CONCRETE. It uses a material like fly ash as binding material in place of cement.
Geo Polymer Concrete
This document discusses geopolymer concrete as an innovative and eco-friendly construction material. It is made from aluminosilicate materials like fly ash or slag in combination with an alkaline activator solution. Geopolymer concrete offers advantages over traditional concrete like lower CO2 emissions, utilization of waste materials, and improved durability. The document outlines the constituents, mixing process, properties and applications of geopolymer concrete. Some drawbacks include the need for special handling and the corrosiveness of the alkaline activators. In conclusion, geopolymer concrete is a promising construction material due to its sustainability and performance benefits.
Light weight bricks using flyash
This document discusses the production of lightweight bricks using red mud and fly ash to address issues with traditional clay bricks. Traditional brick production leads to soil degradation and deforestation. Lightweight bricks use industrial waste materials like fly ash and foaming agents to form bricks with higher compressive strength, lower water absorption, and lighter weight than clay bricks. The document outlines the materials, production process, testing results showing improved properties, and concludes that bricks with 50% red mud and 50% fly ash perform best with increased strength and reduced water absorption compared to traditional bricks.
REPLACE CEMENT BY GEOPOLYMER CEMENT
EARTH FRIENDLY CONCRETE- Commercial form of geopolymer concrete.
EFC Contains a geopolymer binder made from the reaction of blast furnace
slag and flyash with concentrated alkaline solution.
Geopolymer Mortar- a best alternative matrix for Ferrocement construction -
Fly ash is activated by using alkaline activators and cement is totally replaced from mortar/ concrete.
geopolymer concrete
The document summarizes research presented at an international conference on the partial replacement of cement in geopolymer quarry rock dust concrete under different curing conditions. It includes objectives to study the effects of different fly ash and cement mixtures cured through normal, steam, and hot air oven methods. Results showed that compressive and flexural strength generally increased with higher curing temperatures and cement content. Steam curing produced the highest strengths across mixture designs. The research aims to address sustainability challenges in concrete production by exploring geopolymer alternatives.
Geo materials at Geopcamp
This document summarizes a geomaterials project at KAMK University focusing on developing geopolymer binder mixes using regional mineral resources and industrial by-products for structural applications. The project involves researching and processing bioashes, dolomites, calcites, MgO, metakaolines, slags, and micro silicas to develop new geopolymer binder combinations. The goal is to create concretes, mortars, coatings, and materials for road/soil stabilization and mining applications. Testing of bioash-based and blast furnace slag-based geopolymer concretes showed they maintained strength after heating and freeze-thaw cycles.
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Ijciet 06 07_003
The document describes a study on the flexural behavior of reinforced geopolymer concrete beams partially replaced with recycled coarse aggregates. A total of 9 beams were cast and tested under two-point loading, including 3 conventional concrete beams and 6 geopolymer concrete beams with varying combinations of flyash, GGBS, and recycled aggregates. The load carrying capacity, deflection, cracking load, ultimate load, and crack widths were recorded and compared between the geopolymer and conventional beams. The study found that the load carrying capacity of the geopolymer beams was higher than the conventional beams, but decreased with increasing replacement of recycled aggregates.
Geopolymer
The document discusses geopolymer concrete, an alternative to ordinary Portland cement concrete. Geopolymer concrete is made from a geopolymer binder formed from fly ash and alkaline liquids instead of cement. It offers advantages like higher strength, lower permeability, greater heat and chemical resistance compared to ordinary concrete. Some applications include precast concrete, marine structures, and road construction. However, geopolymer concrete also faces hurdles like the need for specialized source materials and pre-mixing due to the hazardous chemicals used. Overall, it provides a more sustainable and durable concrete product.
Geopolymer concrete
The geopolymer cement is formed by polymerization process which involves the reaction between an aluminosilicate source material such as fly-ash, GGBS, etc. with an alkaline activator solutions.
STRENGTH AND DURABILITY STUDY OF GROUND GRANULATED BLAST FURNACE SLAG BASED G...
This document studies the strength and durability of ground granulated blast furnace slag (GGBS) based geopolymer concrete. The study aims to determine the compressive strength and durability parameters of GGBS concrete with varying molar concentrations of sodium hydroxide (NaOH) solutions. The results show that compressive strength increases with higher NaOH concentration from 5M to 8M. Rapid chloride permeability and water absorption tests also indicate improved durability. In conclusion, GGBS concrete provides higher strength than conventional concrete and has potential as a more sustainable alternative if setting time issues can be addressed.
Effect of alkali materials on geo polymer concrete
This document summarizes research on geopolymer concrete, which is an alternative to traditional Portland cement concrete. Geopolymer concrete uses industrial byproducts like fly ash instead of cement as the binder. When activated by an alkaline solution like sodium hydroxide and sodium silicate, fly ash undergoes a geopolymerization process forming a polymer binder. The document discusses factors that affect geopolymer concrete properties like curing temperature and time. It also summarizes previous studies examining different source materials and activators. The experimental study described used fly ash from a local cement corporation and activated it with a sodium hydroxide and sodium silicate solution to produce geopolymer concrete specimens.
Geopolymeric Building Materials
This document discusses geopolymeric building materials. It begins by introducing geopolymers as silico-aluminate materials formed through a natural process and their potential as green building materials. It then discusses the necessity of geopolymeric materials in India due to their lower CO2 emissions compared to Portland cement. The document outlines the main source materials used in geopolymer production such as fly ash and discusses various geopolymeric building materials including geopolymer cement, concrete, paver blocks, and bricks. It concludes by discussing the synergistic use of industrial wastes and potential economic and commercial benefits of geopolymeric materials.
COMPARATIVE STUDY OF EXPERIMENTAL AND ANALYTICAL RESULTS OF GEO POLYMER CON...
Geo polymer concrete is a recently developed construction material which is environment friendly and perhaps best alternative to conventional concrete. In the present scenario, where global warming is a big issue due to Co2 emissions, no cement concrete like Geo Polymer Concrete is the big boon for construction industry. The research work carried out on Geo Polymer Concrete and documented in the present paper is a step forward in the direction to encourage the development of Geo Polymer Concrete for its wide application in construction industry. The present paper describes experimental work and analytical work pertaining to Finite Element Analysis using ANSYS software to simulate the flexural behavior of Reinforced Geo Polymer Concrete Beams. The alkaline solution used for present study was the combination of sodium silicate and sodium hydroxide solution with the varying ratio of 2.50. NaoH solids with 97 - 98% purity is purchased from commercial source and mixed with water to make solution with a concentration of 16 molarity.
STUDY OF BEHAVIOUR OF GEO-POLYMER CONCRETE WITH RESPECT TO ITS MECHANICAL PRO...
The primary object of the work is to observe the mechanical properties of geopolymer
concrete with GGBS and FLYASH. Now-a-days the carbon oxide emission is a lot of within the
atmosphere, which leads to warming and atmospheric phenomenon. Hence, for the purpose of
reducing the emissions, the consequences of industrial waste are being used for geopolymer
concrete like GBBS and Flyash. Sodium hydroxide and Sodium Silicate (NAOH and Na2SiO3)
area unit used as basic activators. The molarity of Sodium hydroxide is 10M and 12M.The ratio
of basic activators are1:2.Having similar properties to cement concrete and attaining equal
strength, the geopolymer concrete reduces greenhouse emission. The proportions used are 100%
GGBS, 75% GGBS & 25% fly ash, 50% GGBS & 50% fly ash, 25% GGBS & 75% fly ash. The
ambient natural process at space temperature is completed for an amount of seven and twenty
eight days. The mechanical properties have been identified by compressive, flexural, split tensile
strength tests through which the results are compared for 10 M and 12 M.
Geopolymer concrete by shaswat das
Geopolymers are new materials for fire- and heat-resistant coatings and adhesives, medicinal applications, high-temperature ceramics, new binders for fire-resistant fiber composites, toxic and radioactive waste encapsulation and new cements for concrete.
Geopolymer concrete ppt
Geopolymer concrete is an innovative, eco-friendly construction material.
It is used as replacement of cement concrete.
In geopolymer concrete cement is not used as a binding material.
Fly ash, silica-fume, or GGBS, along with alkali solution are used as binders.
geopolymer concrete with M sand
This document provides an introduction and literature review on geopolymer concrete.
The introduction discusses how geopolymer concrete was developed to reduce the environmental impacts of ordinary Portland cement concrete production. It describes the key constituents of geopolymer concrete including alkaline liquids and fly ash source materials.
The literature review summarizes several past studies on geopolymer concrete. One study found geopolymer concrete has excellent compressive strength and durability properties making it suitable for structural applications. Replacement of river sand with manufactured sand in geopolymer concrete was shown to increase compressive, tensile, and flexural strengths. Heat curing was also found to increase geopolymer concrete strengths.
In summary, the document provides
Geopolymer concrete
Geopolymer concrete is made from fly ash and an alkaline solution, combining waste products into a useful material. Its setting mechanism depends on polymerization and it cures between 60-90 degrees Celsius. It is made by mixing fly ash aggregates with an alkaline activator solution of sodium or potassium hydroxide and silicate. The fresh concrete can be worked with for up to 120 minutes before setting and does not lose strength. It offers advantages over traditional concrete like lower carbon emissions, better strength and fire resistance, and excellent properties in acid and salt environments.
Experimental study on geopolymer concrete by using ggbs
Abstract
The demand of concrete is increasing day by day and Cement is used for satisfying the need of development of infrastructure facilities, 1 tone cement production generates 1 tone CO2, which adversely affect the environment . In order to reduce the use of OPC and CO2 generation, the new generation concrete has been developed such as GEOPOLYMER CONCRETE. It uses Fly ash and Alkaline Solution as their Binding Materials. Geopolymer requires Oven Curing in the varying range of 60C to 100C for a period of 24 to 96 hours.
The objective of the present work is to study the effect of GGBS in fly ash based Geopolymer concrete and to study the Effect of Oven Curing and Ambient room temperature curing on them. And By replacing fly ash from 0 to 100% with GGBS and inspecting the Fresh Properties and Hardened Concrete properties at 7 days. The casted cube will be cured at normal room temperature and at 700C Oven heat provision for 24 hours and to ascertain the behavior of concrete mixed with GGBS, thereby examining the changes of properties like Strength and Durability.
Keywords: Fly ash, GGBS, Alkaline Solution, strength, durability, utilization
Geopolymer Mortar Production Using Silica Waste as Raw Material
This document summarizes a study on producing geopolymer mortar using silica waste as a raw material. Some key findings:
- Silica waste was analyzed and found to contain 71% silicon dioxide, meeting requirements for use in geopolymer production. Leaching tests found heavy metal concentrations within regulatory standards.
- Particle size analysis was performed on silica waste and pure alumina. Silica waste was ground to a smaller particle size to improve quality.
- Mix designs with different ratios of silica waste, pure alumina, sodium hydroxide, and sodium silicate solution were tested. The ratio with 70% silica waste, 10% alumina, and 20% sodium hydroxide
Geopolymer concrete
This document provides information on geopolymer concrete (GPC) submitted by a group of students. It includes an introduction to GPC, which is an alternative to Portland cement concrete that uses industrial byproducts like fly ash. The document discusses the materials used in GPC including fly ash, aggregates, and alkaline activators. It presents the mix design for M20 grade GPC using different molarity alkaline activator solutions. Test results show increasing compressive strength with increasing molarity. Benefits of GPC include reduced CO2 emissions, use of waste materials, fire resistance, and acid resistance. Challenges include developing strength at ambient temperatures and standardization. The conclusion is that GPC is more suitable for pre
STRENGTH PROPERTIES ON FLY ASH BASED GEO POLYMER CONCRETE WITH ADMIXTURES
Due to increase in environmental problems of the construction industry alternative technologies are emerging. A concrete is used around the world is second only to water. The making of ordinary Portland cement support 5 to 7 percent of total green house gas emission. It also takes large amount of energy .Hence it is necessary to find alternative to cement .Fly ash is a product of coal procured from thermal power plant. It is also good in silicon and alumina. In this experiment the fly ash is used to prepare the geo polymer concrete.geopolymer is a material resulting from the reaction of source materials that is rich in aluminum and silicon. One such material is GEOPOLYMER CONCRETE. It uses a material like fly ash as binding material in place of cement.
Geo Polymer Concrete
This document discusses geopolymer concrete as an innovative and eco-friendly construction material. It is made from aluminosilicate materials like fly ash or slag in combination with an alkaline activator solution. Geopolymer concrete offers advantages over traditional concrete like lower CO2 emissions, utilization of waste materials, and improved durability. The document outlines the constituents, mixing process, properties and applications of geopolymer concrete. Some drawbacks include the need for special handling and the corrosiveness of the alkaline activators. In conclusion, geopolymer concrete is a promising construction material due to its sustainability and performance benefits.
Light weight bricks using flyash
This document discusses the production of lightweight bricks using red mud and fly ash to address issues with traditional clay bricks. Traditional brick production leads to soil degradation and deforestation. Lightweight bricks use industrial waste materials like fly ash and foaming agents to form bricks with higher compressive strength, lower water absorption, and lighter weight than clay bricks. The document outlines the materials, production process, testing results showing improved properties, and concludes that bricks with 50% red mud and 50% fly ash perform best with increased strength and reduced water absorption compared to traditional bricks.
REPLACE CEMENT BY GEOPOLYMER CEMENT
EARTH FRIENDLY CONCRETE- Commercial form of geopolymer concrete.
EFC Contains a geopolymer binder made from the reaction of blast furnace
slag and flyash with concentrated alkaline solution.
Geopolymer Mortar- a best alternative matrix for Ferrocement construction -
Fly ash is activated by using alkaline activators and cement is totally replaced from mortar/ concrete.
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STRENGTH AND DURABILITY STUDY OF GROUND GRANULATED BLAST FURNACE SLAG BASED G...
STRENGTH AND DURABILITY STUDY OF GROUND GRANULATED BLAST FURNACE SLAG BASED G...
Effect of alkali materials on geo polymer concrete
Effect of alkali materials on geo polymer concrete
COMPARATIVE STUDY OF EXPERIMENTAL AND ANALYTICAL RESULTS OF GEO POLYMER CON...
COMPARATIVE STUDY OF EXPERIMENTAL AND ANALYTICAL RESULTS OF GEO POLYMER CON...
STUDY OF BEHAVIOUR OF GEO-POLYMER CONCRETE WITH RESPECT TO ITS MECHANICAL PRO...
STUDY OF BEHAVIOUR OF GEO-POLYMER CONCRETE WITH RESPECT TO ITS MECHANICAL PRO...
Experimental study on geopolymer concrete by using ggbs
Experimental study on geopolymer concrete by using ggbs
Geopolymer Mortar Production Using Silica Waste as Raw Material
Geopolymer Mortar Production Using Silica Waste as Raw Material
STRENGTH PROPERTIES ON FLY ASH BASED GEO POLYMER CONCRETE WITH ADMIXTURES
STRENGTH PROPERTIES ON FLY ASH BASED GEO POLYMER CONCRETE WITH ADMIXTURES
Geopolymer Mortar- a best alternative matrix for Ferrocement construction -
Geopolymer Mortar- a best alternative matrix for Ferrocement construction -
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geopolymer concrete
The document summarizes research presented at an international conference on the partial replacement of cement in geopolymer quarry rock dust concrete under different curing conditions. It includes objectives to study the effects of different fly ash and cement mixtures cured through normal, steam, and hot air oven methods. Results showed that compressive and flexural strength generally increased with higher curing temperatures and cement content. Steam curing produced the highest strengths across mixture designs. The research aims to address sustainability challenges in concrete production by exploring geopolymer alternatives.
Geo materials at Geopcamp
This document summarizes a geomaterials project at KAMK University focusing on developing geopolymer binder mixes using regional mineral resources and industrial by-products for structural applications. The project involves researching and processing bioashes, dolomites, calcites, MgO, metakaolines, slags, and micro silicas to develop new geopolymer binder combinations. The goal is to create concretes, mortars, coatings, and materials for road/soil stabilization and mining applications. Testing of bioash-based and blast furnace slag-based geopolymer concretes showed they maintained strength after heating and freeze-thaw cycles.
Design of geopolymers integration of economic & enviromental
This document discusses methods for sustainably designing geopolymers by integrating economic and environmental considerations in the early stages of material development. It presents two multi-criteria decision analysis methods - a compensatory method using weighted indicators and an objectives hierarchy, and a non-compensatory dominance concept - for screening raw material options for geopolymers. 58 raw materials were screened using these methods to select the most promising ones for further evaluation based on technical, economic and environmental criteria. The results demonstrate that introducing life cycle thinking early in material development is possible and that screening is an important step to downselect options without losing valuable alternatives.
Geopolymer concrete seminarrrrrrrrrrrrrrrrr
Geo-polymer concrete is an alternative to traditional cement concrete that uses fly ash and an alkaline activator instead of cement. It offers benefits like lower CO2 emissions during production, higher compressive strength, and fire resistance. To produce geo-polymer concrete, fly ash is mixed with an alkaline solution and aggregates, and the mixture is cured at 60-90 degrees Celsius to form a hardened cement-like material through a polymerization process. Some applications of geo-polymer concrete include pre-cast construction elements and marine structures due to its strength and acid/salt resistance. While it provides environmental and performance advantages over cement, challenges include the cost of alkaline activators and difficulty of steam curing.
Eco friendly concrete or Geopolymer Concrete
Fly ash and slag from coal power plants and steel mills can be used to create geopolymer concrete, providing an eco-friendly alternative to traditional Portland cement concrete. Geopolymer concrete cures rapidly, within 24 hours, gains strength quickly, and produces less CO2 emissions than Portland cement. It is also highly resistant to chemicals, heat, and freezing. While geopolymer concrete has been used in some airport, university, and military projects, standards and guidelines need to be developed to expand its use in transportation infrastructure and other construction applications.
Bio concrete ppt
Bacteria-based self-healing concrete uses bacteria and a mineral precursor to heal cracks in concrete. The bacteria, like Bacillus species, are added to the concrete along with a precursor like calcium lactate. When cracks form, water activates the precursor which feeds the bacteria, causing them to precipitate calcium carbonate to fill the cracks. This self-healing process extends the lifespan of concrete structures by sealing cracks that would otherwise allow further deterioration.
Bacterial concrete
Bacteria-based self-healing concrete uses dormant calcium-precipitating bacteria encapsulated during mixing. When cracks form and water enters, the bacteria activate, metabolize nutrients, and precipitate calcium carbonate to seal cracks. Testing shows bacterial concrete has higher strength and crack-healing ability compared to normal concrete. While increasing durability, applications in construction could lower costs and improve sustainability over time. Further research is still needed to optimize the technology for practical and economic feasibility at scale.
HIGH STRENGTH CONCRETE PPT
This document provides an overview of concrete, including its history and types. It focuses on high-strength concrete (HSC), describing how it is made with a low water-cement ratio and additives. Guidelines are given for selecting materials for HSC to achieve different compressive strengths. The differences between normal strength concrete and HSC are outlined. Applications of HSC include reducing column sizes in buildings and bridges and increasing floor area in high-rise buildings. Examples are given of bridges that used HSC to decrease volume and increase spans.
PPT on Green concrete by Pankaj Kumar
This PPT is on Green concrete......... in this you learn about what is green concrete there feature, durability, compositions and many more things
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This document summarizes the preparation and characterization of various ceramic hollow fiber membranes. Different ceramic materials like alumina, silica, titania, and kaolin were used to fabricate membranes via phase inversion and sintering. Membranes were characterized to analyze properties like pore size, strength, permeability. Composite membranes were made by coating boehmite sol, titania sol, and other particles onto alumina hollow fiber substrates. The effects of processing parameters on membrane performance were also examined.
Effect Of Curing Temperature And Curing Hours On The Properties Of Geo-Polyme...
International Journal of Computational Engineering Research (IJCER) is dedicated to protecting personal information and will make every reasonable effort to handle collected information appropriately. All information collected, as well as related requests, will be handled as carefully and efficiently as possible in accordance with IJCER standards for integrity and objectivity.
MECHANICAL PROPERTIES OF HIGH VOLUME FLY ASH CONCRETE SUBJECTED TO ELEVATED ...
Fly ash is a finely divided waste product resulting from the combustion of pulverized coal in power plants.
It contains large amounts of silica, alumina and small amount of unburned carbon, which pollutes environment.
It is grey in colour and alkaline in nature.
The particle size ranges between 5-120 microns
CHARACTERIZATION & DURABILITY PROPERTIES OF ULTRAFINE FLY ASH BASED GEOPOLYME...
CHARACTERIZATION & DURABILITY PROPERTIES OF ULTRAFINE FLY ASH BASED GEOPOLYME...Journal For Research
Huge scale generation of cement is creating environmental issue on one hand and depletion of natural resources on the other hand. This danger to nature has prompted research being made of industrial byproducts as supplementary cementetious materials in making concrete for more green and durable. Fly ash and silica fume both are pozzolanic materials which have been broadly utilized for improving the properties like strength and durability in concrete. Silica fume demonstrates the greater pozzolanic activity then fly ash because of its finer particle size distribution, the pozzolanic activity of fly ash also can be enhanced by decreasing the particle size distribution. Geopolymer is a class of aluminosilicate binding materials integrated by thermal action of solid aluminosilicate based materials such as metakoaline, GGBFS, fly ash. Geopolymer get activated with the alkaline solution and heat. Sodium hydroxide and sodium silicate were utilized as an alkaline solution with a steady ratio of 2.5 and the mix is designed for molarity 10 for the work carried out. In the present study, an attempt has been made to explore the geopolymer concrete by utilizing ultrafine fly ash (UFFA) produced by air classification and processed GGBFS with varied proportions. Discusses on the properties of geopolymer concrete has also been mentioned. Compressive strength and durability tests like Permeability, Abrasion, Sorptivity, Acid and sulphate attack, Drying shrinkage were conducted. In this work geopolymer concrete was prepared with varying proportions of GGBS and UFFA in the ratio of 92.5:7.5 and 88:12 and 80:20. The maximum strength was achieved for the ratio 92.5:7.5. The obtained compressive strength is in the range of 36.5MPa to 91.6MPa from 1st day to 28th day of hot curing.
Evaluation on the reduced graphene oxide thermal interface material and heat ...
This document evaluates the performance of reduced graphene oxide (rGO) as a thermal interface material (TIM) and heat spreader for thermal management in high-temperature power devices. It describes how graphene oxide films of varying thickness were deposited on silicon substrates via drop-casting and then partially reduced to form hybrid rGO/graphene oxide films. Thermal testing found that a 300nm thick hybrid film formed from four drop-castings improved the heating rate of the silicon substrate from 14.85°C/W to 18.37°C/W, demonstrating the effectiveness of rGO for heat spreading applications. Raman spectroscopy and microscopy characterization confirmed the formation of electrically insulating graphene oxide cores surrounded by thermally conductive rGO shells in the
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1. The document discusses the behavior of low rank high moisture coal stored in small stockpiles under controlled ambient conditions. Laboratory tests were conducted on coal samples from Indonesia to analyze properties like moisture content, calorific value, and reactivity.
2. Small-scale stockpile tests showed that natural drying can significantly reduce coal moisture content over time. However, rainfall negatively impacts the drying process. Staging the coal by size and sheltering stockpiles enhances moisture loss.
3. Analysis methods like XRD, FTIR, and TGA provided insights into the coal's amorphous structure and functional groups, which influence its moisture holding capacity. Understanding these relationships can help optimize stockpile management and drying.
Ceramic industry
The document provides information on the ceramic industry in Egypt. Some key points:
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- Raw materials for ceramics include sand, feldspar, clay, and other minerals. Testing of raw materials includes chemical analysis by XRF and thermal analysis by dilatometry and TG-DTA.
- The production process for ceramic tiles includes batching, grinding, spraying, pressing, drying, firing, and sorting. Finished tiles undergo tests for properties like dimensions, strength, and abrasion resistance.
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Geopolymer Concrete – A Look Over
This document provides an overview of geopolymer concrete. It discusses that geopolymer concrete completely replaces Portland cement, reducing CO2 emissions. Geopolymer concrete uses industrial byproducts like fly ash or GGBS reacted with an alkaline activator like sodium silicate. The document reviews several studies on geopolymer concrete properties using different mixes, curing methods, and molarities. In general, the studies found that geopolymer concrete strength increases with higher molarity and temperature curing. Replacing fly ash partially with GGBS also increased strength. Geopolymer concrete properties depend on the alkaline activator ratio and curing conditions.
SIMONA CAVALU_Surface Modification of Alumina/ Zirconia Ceramics Upon Differe...
The aim of this study was to prepare and to characterize the structure of Al2O3–3YSZ composites with 5% TiO2 addition
as well as the surface modification upon treatments with SnF2 and NaBF4, respectively. SEM micrographs showed the
controlled densification of the composites as an effect of 3YSZ and TiO2 addition to alumina matrix. By FTIR and XRD,
the characteristics of Al-O and Zr-O vibrations, respectively, the diffractions lines related to a-corundum and zirconia in
tetragonal phase were discussed. Qualitative and quantitative results obtained by XPS and ATR FTIR demonstrated that the
proposed materials are more sensitive to SnF2 than to NaBF4 treatment.
IRJET- Study of Properties of Geopolymer Concrete
This document summarizes research on the properties of geopolymer concrete. Some key points:
- Geopolymer concrete is made from fly ash, alkaline liquids like sodium hydroxide or potassium hydroxide, and sodium silicate or potassium silicate. It has high compressive strength and durability.
- Previous studies found geopolymer concrete sets at room temperature, is impermeable, and has higher heat and chemical resistance than ordinary Portland cement concrete.
- The document reviews several past studies that analyzed the effects of parameters like curing temperature, alkaline liquid to fly ash ratio, and sodium silicate to sodium hydroxide ratio on the properties of geopolymer concrete.
- In
IRJET- Permeability of Geopolymer Concrete with and without Geopolymer Paint ...
This document studies the permeability and absorption resistance of geopolymer concrete compared to traditional concrete. Four samples were prepared: traditional concrete without paint, traditional concrete with geopolymer paint, geopolymer concrete without paint, and geopolymer concrete with geopolymer paint. The results showed that geopolymer concrete has much lower permeability (0.58 x 10-6 mm/s) than traditional concrete (0.19 x 10-5 mm/s), classified as "impermeability concrete" versus "low permeability concrete". Geopolymer concrete also had lower absorption resistance (0.43%) than traditional concrete (1.34%). Therefore, geopolymer concrete is recommended for use in hydraulic structures due to its
A Review On Development Of Flyash Based High Strength Geopolymer Concrete
Geopolymer concrete is the latest development in the field of concrete technology and it is still
developing. Geopolymers are inorganic, stable, hard and non-inflammable binder. The application of
geopolymer binder are in fire resistance fiber composite, sealant industry, tooling aeronautics SPF aluminium,
foundry equipment’s, radioactive toxic waste, ceramic, bricks and other precast concrete. The current review is
aims to put forward the development in geopolymer concrete for the production high strength geopolymer
concrete having strength more than 90MPa. The development of high strength concrete is aimed to reduce
structural member sizes and for economical construction in case of long span bridges and tall buildings. Also
the use flyash in concrete to reduce green gas house emission into the atmosphere by reducing cement usage
Rapid reduction of ultrathin films of graphene oxide on large area silicon su...
This document summarizes research on producing graphene oxide thin films on large silicon substrates using ultrasonic spray coating and rapid thermal reduction. GO droplets were spray coated in ethanol and overlapped to form uniform thin films. Films were reduced at 1100°C by rapid thermal processing (RTP), achieving sheet resistances of 1-4 kOhms/sq. Characterization with SEM, AFM, XPS and four-point probe showed the spray coating produced uniform, continuous thin films with increasing thickness for more spray passes. RTP effectively removed oxygen and produced conductive rGO with mostly sp2 bonding, while lower temperature reduction was less effective. Sheet resistance generally decreased with more spray passes due to increased thickness.
Strength and stability characteristics of ggbs and red mud based geopolymer c...
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The document discusses geo-polymer concrete as an alternative to ordinary Portland cement concrete. Geo-polymer concrete utilizes industrial by-products such as fly ash, red mud, and GGBS, which reduces pollution. The study aims to determine the optimal ratio of red mud and GGBS as binders in geo-polymer concrete. Various tests were conducted to evaluate the compressive strength, flexural strength, and durability of geo-polymer concrete specimens containing different ratios of red mud and GGBS. The results showed that mixes with higher GGBS content and the addition of fibers exhibited greater mechanical strengths and durability compared to ordinary concrete. Therefore, geo-polymer concrete is a more sustainable alternative that utilizes waste materials.Geopolymerconcrete [Repaired].pptx
Portland cement production is a major contributor to CO2 emissions. Geopolymer concrete has the potential to substantially reduce CO2 emissions by partially replacing Portland cement. Geopolymer concrete is made from industrial byproducts like fly ash and alkaline liquids, sets at room temperature, and results in a durable material with high compressive strength and excellent resistance to fire, chemicals, and corrosion. Geopolymer concrete could help reduce CO2 emissions by as much as 90% compared to Portland cement and provide a more sustainable building material.
The International Journal of Engineering and Science (The IJES)
The International Journal of Engineering & Science is aimed at providing a platform for researchers, engineers, scientists, or educators to publish their original research results, to exchange new ideas, to disseminate information in innovative designs, engineering experiences and technological skills. It is also the Journal's objective to promote engineering and technology education. All papers submitted to the Journal will be blind peer-reviewed. Only original articles will be published.
The papers for publication in The International Journal of Engineering& Science are selected through rigorous peer reviews to ensure originality, timeliness, relevance, and readability
ICAMSE Conference Paper
The document summarizes research on the preparation of a titania intercalated graphite oxide hybrid material and its photocatalytic activity. Specifically, it discusses how vein graphite from Sri Lanka was oxidized to produce graphite oxide using Hummers' method. The graphite oxide was then exfoliated and used to intercalate with nano titanium dioxide synthesized from titanium oxysulfate. Characterization techniques showed the successful intercalation of TiO2 nanoparticles in the graphite oxide layers. Testing found the hybrid material demonstrated greater photocatalytic activity in degrading methyl orange under UV light compared to nano TiO2 alone, indicating its potential for applications in photocatalysis.
IRJET-Study on Strength and Durability Aspects of Geopolymer Concrete
This document summarizes a study on the strength and durability properties of geopolymer concrete using fly ash and ground granulated blast furnace slag (GGBS) as binders to replace cement. Various mix designs were tested with different ratios of fly ash to GGBS. The compressive strength and split tensile strength of the geopolymer concrete cubes increased with an increasing percentage of GGBS in the mix. The highest compressive strength of 66MPa was observed for a mix with a 60% fly ash and 40% GGBS ratio. Additionally, sorptivity tests found that geopolymer concrete has lower water absorption than traditional concrete, indicating better durability. The study demonstrates that geopolymer concrete
C013112225
This document summarizes a research paper that studied the abrasion resistance of geopolymer concrete at varying temperatures. The paper prepared geopolymer concrete samples using fly ash as the source material and an alkaline solution of sodium hydroxide and sodium silicate. Samples were cured at 25°C, 60°C, and 80°C and tested for abrasion resistance at 5-25 minutes using a tile abrasion testing machine. Results showed that abrasion resistance increased with higher curing temperature, with samples cured at 80°C showing the highest resistance. The paper concluded that geopolymer concrete has good abrasion resistance properties and further research is needed on mixtures with higher alkaline liquid ratios.
Effect of Steel Fiber on Alkali activated Fly Ash Concrete
Concrete is the world’s most important Construction material so the demand of cement is increases. The
production of cement is highly energy intensive & the production on one ton of cement liberates about one ton
of CO2 to atmosphere. The contribution of cement industry to the greenhouse gas emission is estimated to be
about 70% of the total green gas emission. Also it consumes large amount of natural resources. Hence it is
essential to find alternative to cement. Geopolymer concrete is an innovative material in which the binder is
produced but the reaction of an alkaline liquid with a source material that is rich in silica alumina.
The present work deals with the result of the experimental investigation carried out on geopolymer concrete
using steel fiber. The study analyses the effect of steel on compressive strength. Geopolymer concrete mixes
were prepared using low calcium fly ash & activated by alkaline solution. (NaOH & Na2SiO3) with alkaline
liquid to fly ash ratio of 0.35 Alkaline solution. Used for present study combination of sodium hydroxide &
sodium silicate with ratio 2.5. The mix was designed for molarity of 16M & grade chosen for investigation was
M30. Hooked end steel fiber . All tests were conducted according to IS-code procedure. The result for each
variation are tabulated & discussed in details & some important conclusions are made.
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其他信息：根据不同的专业和学位，可能会有一些特定的信息或章节。
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综上所述，办理旧金山大学毕业证毕业证学位证USF学位证【微信：95270640 】是证明身份和学历的高价值文件。外观简单庄重，格式统一，包括重要的个人信息和发布日期。对持有人来说，妥善保管是非常重要的。
Sri Guru Hargobind Ji - Bandi Chor Guru.pdf
Sri Guru Hargobind Ji (19 June 1595 - 3 March 1644) is revered as the Sixth Nanak.
• On 25 May 1606 Guru Arjan nominated his son Sri Hargobind Ji as his successor. Shortly
afterwards, Guru Arjan was arrested, tortured and killed by order of the Mogul Emperor
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• Guru Hargobind's succession ceremony took place on 24 June 1606. He was barely
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• As ordered by Guru Arjan Dev Ji, he put on two swords, one indicated his spiritual
authority (PIRI) and the other, his temporal authority (MIRI). He thus for the first time
initiated military tradition in the Sikh faith to resist religious persecution, protect
people’s freedom and independence to practice religion by choice. He transformed
Sikhs to be Saints and Soldier.
• He had a long tenure as Guru, lasting 37 years, 9 months and 3 days
SELENIUM CONF -PALLAVI SHARMA - 2024.pdf
Begin your journey to contribute to Selenium - A Talk at the Selenium Conference 2024
原版制作(Humboldt毕业证书)柏林大学毕业证学位证一模一样
原件一模一样【微信：bwp0011】《(Humboldt毕业证书)柏林大学毕业证学位证》【微信：bwp0011】学位证，留信认证（真实可查，永久存档）原件一模一样纸张工艺/offer、雅思、外壳等材料/诚信可靠,可直接看成品样本，帮您解决无法毕业带来的各种难题！外壳，原版制作，诚信可靠，可直接看成品样本。行业标杆！精益求精，诚心合作，真诚制作！多年品质 ,按需精细制作，24小时接单,全套进口原装设备。十五年致力于帮助留学生解决难题，包您满意。
本公司拥有海外各大学样板无数，能完美还原。
1:1完美还原海外各大学毕业材料上的工艺：水印，阴影底纹，钢印LOGO烫金烫银，LOGO烫金烫银复合重叠。文字图案浮雕、激光镭射、紫外荧光、温感、复印防伪等防伪工艺。材料咨询办理、认证咨询办理请加学历顾问微bwp0011
【主营项目】
一.毕业证【微bwp0011】成绩单、使馆认证、教育部认证、雅思托福成绩单、学生卡等！
二.真实使馆公证(即留学回国人员证明,不成功不收费)
三.真实教育部学历学位认证（教育部存档！教育部留服网站永久可查）
四.办理各国各大学文凭(一对一专业服务,可全程监控跟踪进度)
如果您处于以下几种情况：
◇在校期间，因各种原因未能顺利毕业……拿不到官方毕业证【微bwp0011】
◇面对父母的压力，希望尽快拿到；
◇不清楚认证流程以及材料该如何准备；
◇回国时间很长，忘记办理；
◇回国马上就要找工作，办给用人单位看；
◇企事业单位必须要求办理的
◇需要报考公务员、购买免税车、落转户口
◇申请留学生创业基金
留信网认证的作用:
1:该专业认证可证明留学生真实身份
2:同时对留学生所学专业登记给予评定
3:国家专业人才认证中心颁发入库证书
4:这个认证书并且可以归档倒地方
5:凡事获得留信网入网的信息将会逐步更新到个人身份内，将在公安局网内查询个人身份证信息后，同步读取人才网入库信息
6:个人职称评审加20分
7:个人信誉贷款加10分
8:在国家人才网主办的国家网络招聘大会中纳入资料，供国家高端企业选择人才
FULL STACK PROGRAMMING - Both Front End and Back End
This ppt gives details about Full Stack Programming and its basics.
OOPS_Lab_Manual - programs using C++ programming language
This manual contains programs on object oriented programming concepts using C++ language.
一比一原版(uoft毕业证书)加拿大多伦多大学毕业证如何办理
原版一模一样【微信：741003700 】【(uoft毕业证书)加拿大多伦多大学毕业证成绩单】【微信：741003700 】学位证，留信认证（真实可查，永久存档）原件一模一样纸张工艺/offer、雅思、外壳等材料/诚信可靠,可直接看成品样本，帮您解决无法毕业带来的各种难题！外壳，原版制作，诚信可靠，可直接看成品样本。行业标杆！精益求精，诚心合作，真诚制作！多年品质 ,按需精细制作，24小时接单,全套进口原装设备。十五年致力于帮助留学生解决难题，包您满意。
本公司拥有海外各大学样板无数，能完美还原。
1:1完美还原海外各大学毕业材料上的工艺：水印，阴影底纹，钢印LOGO烫金烫银，LOGO烫金烫银复合重叠。文字图案浮雕、激光镭射、紫外荧光、温感、复印防伪等防伪工艺。材料咨询办理、认证咨询办理请加学历顾问Q/微741003700
【主营项目】
一.毕业证【q微741003700】成绩单、使馆认证、教育部认证、雅思托福成绩单、学生卡等！
二.真实使馆公证(即留学回国人员证明,不成功不收费)
三.真实教育部学历学位认证（教育部存档！教育部留服网站永久可查）
四.办理各国各大学文凭(一对一专业服务,可全程监控跟踪进度)
如果您处于以下几种情况：
◇在校期间，因各种原因未能顺利毕业……拿不到官方毕业证【q/微741003700】
◇面对父母的压力，希望尽快拿到；
◇不清楚认证流程以及材料该如何准备；
◇回国时间很长，忘记办理；
◇回国马上就要找工作，办给用人单位看；
◇企事业单位必须要求办理的
◇需要报考公务员、购买免税车、落转户口
◇申请留学生创业基金
留信网认证的作用:
1:该专业认证可证明留学生真实身份
2:同时对留学生所学专业登记给予评定
3:国家专业人才认证中心颁发入库证书
4:这个认证书并且可以归档倒地方
5:凡事获得留信网入网的信息将会逐步更新到个人身份内，将在公安局网内查询个人身份证信息后，同步读取人才网入库信息
6:个人职称评审加20分
7:个人信誉贷款加10分
8:在国家人才网主办的国家网络招聘大会中纳入资料，供国家高端企业选择人才
办理(uoft毕业证书)加拿大多伦多大学毕业证【微信：741003700 】外观非常简单，由纸质材料制成，上面印有校徽、校名、毕业生姓名、专业等信息。
办理(uoft毕业证书)加拿大多伦多大学毕业证【微信：741003700 】格式相对统一，各专业都有相应的模板。通常包括以下部分：
校徽：象征着学校的荣誉和传承。
校名:学校英文全称
授予学位：本部分将注明获得的具体学位名称。
毕业生姓名：这是最重要的信息之一，标志着该证书是由特定人员获得的。
颁发日期：这是毕业正式生效的时间，也代表着毕业生学业的结束。
其他信息：根据不同的专业和学位，可能会有一些特定的信息或章节。
办理(uoft毕业证书)加拿大多伦多大学毕业证【微信：741003700 】价值很高，需要妥善保管。一般来说，应放置在安全、干燥、防潮的地方，避免长时间暴露在阳光下。如需使用，最好使用复印件而不是原件，以免丢失。
综上所述，办理(uoft毕业证书)加拿大多伦多大学毕业证【微信：741003700 】是证明身份和学历的高价值文件。外观简单庄重，格式统一，包括重要的个人信息和发布日期。对持有人来说，妥善保管是非常重要的。
AI + Data Community Tour - Build the Next Generation of Apps with the Einstei...
AI + Data Community Tour - Build the Next Generation of Apps with the Einstei...Paris Salesforce Developer Group
Build the Next Generation of Apps with the Einstein 1 Platform.
Rejoignez Philippe Ozil pour une session de workshops qui vous guidera à travers les détails de la plateforme Einstein 1, l'importance des données pour la création d'applications d'intelligence artificielle et les différents outils et technologies que Salesforce propose pour vous apporter tous les bénéfices de l'IA.A high-Speed Communication System is based on the Design of a Bi-NoC Router, ...
The Network on Chip (NoC) has emerged as an effective
solution for intercommunication infrastructure within System on
Chip (SoC) designs, overcoming the limitations of traditional
methods that face significant bottlenecks. However, the complexity
of NoC design presents numerous challenges related to
performance metrics such as scalability, latency, power
consumption, and signal integrity. This project addresses the
issues within the router's memory unit and proposes an enhanced
memory structure. To achieve efficient data transfer, FIFO buffers
are implemented in distributed RAM and virtual channels for
FPGA-based NoC. The project introduces advanced FIFO-based
memory units within the NoC router, assessing their performance
in a Bi-directional NoC (Bi-NoC) configuration. The primary
objective is to reduce the router's workload while enhancing the
FIFO internal structure. To further improve data transfer speed,
a Bi-NoC with a self-configurable intercommunication channel is
suggested. Simulation and synthesis results demonstrate
guaranteed throughput, predictable latency, and equitable
network access, showing significant improvement over previous
designs
This study Examines the Effectiveness of Talent Procurement through the Imple...
In the world with high technology and fast
forward mindset recruiters are walking/showing interest
towards E-Recruitment. Present most of the HRs of
many companies are choosing E-Recruitment as the best
choice for recruitment. E-Recruitment is being done
through many online platforms like Linkedin, Naukri,
Instagram , Facebook etc. Now with high technology E-
Recruitment has gone through next level by using
Artificial Intelligence too.
Key Words : Talent Management, Talent Acquisition , E-
Recruitment , Artificial Intelligence Introduction
Effectiveness of Talent Acquisition through E-
Recruitment in this topic we will discuss about 4important
and interlinked topics which are
一比一原版(uofo毕业证书)美国俄勒冈大学毕业证如何办理
原版一模一样【微信：741003700 】【(uofo毕业证书)美国俄勒冈大学毕业证成绩单】【微信：741003700 】学位证，留信认证（真实可查，永久存档）原件一模一样纸张工艺/offer、雅思、外壳等材料/诚信可靠,可直接看成品样本，帮您解决无法毕业带来的各种难题！外壳，原版制作，诚信可靠，可直接看成品样本。行业标杆！精益求精，诚心合作，真诚制作！多年品质 ,按需精细制作，24小时接单,全套进口原装设备。十五年致力于帮助留学生解决难题，包您满意。
本公司拥有海外各大学样板无数，能完美还原。
1:1完美还原海外各大学毕业材料上的工艺：水印，阴影底纹，钢印LOGO烫金烫银，LOGO烫金烫银复合重叠。文字图案浮雕、激光镭射、紫外荧光、温感、复印防伪等防伪工艺。材料咨询办理、认证咨询办理请加学历顾问Q/微741003700
【主营项目】
一.毕业证【q微741003700】成绩单、使馆认证、教育部认证、雅思托福成绩单、学生卡等！
二.真实使馆公证(即留学回国人员证明,不成功不收费)
三.真实教育部学历学位认证（教育部存档！教育部留服网站永久可查）
四.办理各国各大学文凭(一对一专业服务,可全程监控跟踪进度)
如果您处于以下几种情况：
◇在校期间，因各种原因未能顺利毕业……拿不到官方毕业证【q/微741003700】
◇面对父母的压力，希望尽快拿到；
◇不清楚认证流程以及材料该如何准备；
◇回国时间很长，忘记办理；
◇回国马上就要找工作，办给用人单位看；
◇企事业单位必须要求办理的
◇需要报考公务员、购买免税车、落转户口
◇申请留学生创业基金
留信网认证的作用:
1:该专业认证可证明留学生真实身份
2:同时对留学生所学专业登记给予评定
3:国家专业人才认证中心颁发入库证书
4:这个认证书并且可以归档倒地方
5:凡事获得留信网入网的信息将会逐步更新到个人身份内，将在公安局网内查询个人身份证信息后，同步读取人才网入库信息
6:个人职称评审加20分
7:个人信誉贷款加10分
8:在国家人才网主办的国家网络招聘大会中纳入资料，供国家高端企业选择人才
办理(uofo毕业证书)美国俄勒冈大学毕业证【微信：741003700 】外观非常简单，由纸质材料制成，上面印有校徽、校名、毕业生姓名、专业等信息。
办理(uofo毕业证书)美国俄勒冈大学毕业证【微信：741003700 】格式相对统一，各专业都有相应的模板。通常包括以下部分：
校徽：象征着学校的荣誉和传承。
校名:学校英文全称
授予学位：本部分将注明获得的具体学位名称。
毕业生姓名：这是最重要的信息之一，标志着该证书是由特定人员获得的。
颁发日期：这是毕业正式生效的时间，也代表着毕业生学业的结束。
其他信息：根据不同的专业和学位，可能会有一些特定的信息或章节。
办理(uofo毕业证书)美国俄勒冈大学毕业证【微信：741003700 】价值很高，需要妥善保管。一般来说，应放置在安全、干燥、防潮的地方，避免长时间暴露在阳光下。如需使用，最好使用复印件而不是原件，以免丢失。
综上所述，办理(uofo毕业证书)美国俄勒冈大学毕业证【微信：741003700 】是证明身份和学历的高价值文件。外观简单庄重，格式统一，包括重要的个人信息和发布日期。对持有人来说，妥善保管是非常重要的。
Digital Twins Computer Networking Paper Presentation.pptx
A Digital Twin in computer networking is a virtual representation of a physical network, used to simulate, analyze, and optimize network performance and reliability. It leverages real-time data to enhance network management, predict issues, and improve decision-making processes.
Ericsson LTE Throughput Troubleshooting Techniques.ppt
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ELS: 2.4.1 POWER ELECTRONICS Course objectives: This course will enable stude...
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Blood finder application project report (1).pdf
Blood Finder is an emergency time app where a user can search for the blood banks as
well as the registered blood donors around Mumbai. This application also provide an
opportunity for the user of this application to become a registered donor for this user have
to enroll for the donor request from the application itself. If the admin wish to make user
a registered donor, with some of the formalities with the organization it can be done.
Specialization of this application is that the user will not have to register on sign-in for
searching the blood banks and blood donors it can be just done by installing the
application to the mobile.
The purpose of making this application is to save the user’s time for searching blood of
needed blood group during the time of the emergency.
This is an android application developed in Java and XML with the connectivity of
SQLite database. This application will provide most of basic functionality required for an
emergency time application. All the details of Blood banks and Blood donors are stored
in the database i.e. SQLite.
This application allowed the user to get all the information regarding blood banks and
blood donors such as Name, Number, Address, Blood Group, rather than searching it on
the different websites and wasting the precious time. This application is effective and
user friendly.
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- 2. The term “geopolymer” was first used by J.Davidovits in the late 1970s. Geopolymers have three dimensional amorphous structure and can be synthesized from by products such as fly ash, blast furnance slag or geological materials such as metakaolin. However, metakaolin is expensive and is not used widely in the construction industry.
- 3. Xray fluorescence (XRF) X-ray diffraction (XRD) Scanning electron micrograph (SEM) Fourier transform infrared spectroscopy (FTIR) Differential scanning calorimetry (DSC) Thermal gravimetric analysis (TGA)
- 4. The chemical composition of the alumino silicate was determined using XRF shows the chemical composition of fly ash.
- 5. The basic material of the geopolymer based fly ash is of a prevailingly amorphous character only seldom containing needle-shaped minority crystals. The X-ray diffraction (XRD) pattern of fly ash in its as received condition is shown in Fig.
- 6. SEM image showing the characteristic morphology of the original fly ash. The majority of the fly ash particles are spherical in nature and are precipitator type fly ash. This ash consists of a series of spherical particles of different sizes (diameters ranging from 200 to 10 Am). Although usually hollow, some of these spheres may contain other particles of a smaller size in their interiors.
- 8. The FTIR spectra for both raw fly ash and geopolymer paste demonstrated remarkable differences. The vibration at 1020 cm-1 corresponding to SiO and AlO in the raw fly ash was shifted to less than 1000 cm-1.
- 9. DSC was used to measure a number of characteristic properties of the geopolymer pastes. Using this technique, it is possible to observe exothermic and endothermic events as well as glass transition temperatures(Tg). The range of investigation is between -30 and 100̊ C
- 10. Wide range of temperatures. Programmed heating/cooling rates Sensitivity Any material may be tested Fiber Powder liquid etc; Small amount of material is needed Does not take much time Clearness of results
- 11. Cannot really control the rate of experiment. Dependent on too many parameters. Very sensitive to any changes. The result depends a lot from the operator. The procedure of standard parameters. Evaluation is not described.
- 12. In this TGA test, the mass loss was measured while the specimens were gradually exposed to increasing temperatures. Powdered specimens were used in TGA to ensure the achievement of thermal equilibrium during transient heating.
- 13. Accurate Low detection limit(up to 10-7 g) Reliable data Easy to use Rather cheap Disadvantages Destructive Limited range of samples Time consuming Usually not qualitative
- 14. Class C Fly Ash: For class c fly ash-based geopolymer paste, low W/F could meet the demand for an approving fluidity. Class C fly ash-based geoolymer pase and mortar could both abtain high compressive strength after curing a 70ͦC for 24h. Compressive strengthof mortar was much higher than paste with same water to fly ash ratio.
- 15. Class F fly ash: Class F fly ash mixed with calcium hydroxide geopolymer mortar. The compressive strength and the flexural strength of geopolymer mortar after being demolded cured at standard temperature for 1 day were up to 6.48 MPa and 2.07 MPa.
- 16. Geopolymer are new materials which have various application fields. Geopolymer concrete showed reduction deterioration in its properties when exposed to temperatures above 200ͦC. Geopolymers shows significant potential to be a material for the future,because it is not only environmentally friendly but also possesses excellent mechanical properties. And it also has a great potential for applications in various industries.
- 17. Thank you