Book ChapterDOI
Mix Design of Fly Ash Based Geopolymer Concrete
TLDR
In this paper, an experimental investigation has been carried out for the gradation of geopolymer concrete and a mix design procedure is proposed on the basis of quantity and fineness of fly ash, quantity of water, grading of fine aggregate, fine to total aggregate ratio.Abstract:
Geopolymer is a new development in the world of concrete in which cement is totally replaced by pozzolanic materials like fly ash and activated by highly alkaline solutions to act as a binder in the concrete mix. For the selection of suitable ingredients of geopolymer concrete to achieve desire strength at required workability, an experimental investigation has been carried out for the gradation of geopolymer concrete and a mix design procedure is proposed on the basis of quantity and fineness of fly ash, quantity of water, grading of fine aggregate, fine to total aggregate ratio. Sodium silicate solution with Na2O = 16.37 %, SiO2 = 34.35 % and H2O = 49.28 % and sodium hydroxide solution having 13 M concentration were maintained constant throughout the experiment. Water-to-geopolymer binder ratio of 0.35, alkaline solution-to-fly ash ratio of 0.35 and sodium silicate-to-sodium hydroxide ratio of 1.0 by mass were fixed on the basis of workability and cube compressive strength. Workability of geopolymer concrete was measured by flow table apparatus and cubes of 150 mm side were cast and tested for compressive strength after specified period of oven heating. The temperature of oven heating was maintained at 60 °C for 24 h duration and tested 7 days after heating. It is observed that the results of workability and compressive strength are well match with the required degree of workability and compressive strength. So, proposed method is used to design normal and standard geopolymer concrete.read more
Citations
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Journal ArticleDOI
Blast testing of high performance geopolymer composite walls reinforced with steel wire mesh and aluminium foam
Jian Liu,Chengqing Wu,Chunguang Li,Wenxue Dong,Yu Su,Jun Li,Ning Cui,Fan Zeng,Lan Dai,Qingfei Meng,Jiabao Pang +10 more
TL;DR: In this article, two blast tests were conducted to study the blast resistance of high performance geopolymer composite walls reinforced with steel wire mesh (SWM) and aluminium foam (AF).
Peer ReviewDOI
Geopolymer Concrete: A Material for Sustainable Development in Indian Construction Industries
TL;DR: In this paper , a comprehensive survey of the literature shows that sustainable development is achieved by employing geopolymers in Indian construction industries, because it results in lower CO2 emissions, optimum utilization of natural resources, utilization of waste materials, is more cost-effective in long life infrastructure construction, and, socially, in financial benefits and employment generation.
Journal ArticleDOI
Investigation on modulus of elasticity of fly ash-ground granulated blast furnace slag blended geopolymer concrete
TL;DR: In this article, the experimental data of Modulus of Elasticity (MOE) values are compared with codes and previous literature to predict the values, experimental data is evidently representing the predicted values are almost equal to laboratory tested values.
Effect of fly ash and GGBS combination on mechanical and durability properties of GPC
TL;DR: In this article, the strength characteristics of geopolymer concrete (GPC) developed with fly ash and GGBS as binders, combined Sodium silicate (Na2SiO3) and Sodium Hydroxide (NaOH) solution as alkaline activators were determined.
Journal ArticleDOI
Influence of steel fibres on tension stiffening and cracking of reinforced geopolymer concrete
TL;DR: In this article, an experimental investigation was conducted to study the influence of steel fibres on the tension stiffening effect and cracking behavior of geopolymer concrete (GPC) prisms cast and tested under uniaxial tension.
References
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Journal ArticleDOI
Geopolymers : inorganic polymeric new materials
TL;DR: In the last few years, technological progress has been made in the development of new materials such as "geopolymers" and new techniques, such as ''sol-gel'' as mentioned in this paper, opening up new applications and procedures and transforming ideas that have been taken for granted in inorganic chemistry.
Journal ArticleDOI
Synthesis and characterisation of materials based on inorganic polymers of alumina and silica: sodium polysialate polymers
TL;DR: In this article, a statistical study of the effect on the polymerization process of the molar ratio of the component oxides and the water content of the mixture showed the latter to be a critical parameter.
Journal ArticleDOI
On the development of fly ash-based geopolymer concrete
TL;DR: In this article, fly ash-based geopolymer concrete was developed to reduce greenhouse gas emissions, and the test results showed the effects of various parameters on the properties of the concrete.
Journal Article
Making concrete greener with flyash
TL;DR: In this article, the authors discuss the increase use of large volumes of fly ash and other supplementary cementing materials in the construction industry and its role in reducing these emissions, since the manufacture of portland cement contributes significantly to carbon dioxide emissions.
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