Book ChapterDOI
Mix Design of Fly Ash Based Geopolymer Concrete
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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
Production of geoploymer mortar reinforced with sustainable fibers
TL;DR: In this article, a program for the preparation of geopolymer mortar mixes has been implemented for measuring the compressive strength of the mix by flow table apparatus and cubes of 50 mm side were cast and tested.
Journal ArticleDOI
Development of Mix Design Guidelines for Low Calcium Fly Ash-based Geopolymer Concrete – A Quantitative Approach
Avinash Ojha,Praveen Aggarwal +1 more
Journal ArticleDOI
Durability studies in alkaline activated systems (metakaolin – bottom ash): A prospective study
Logesh Kumar,V. Revathi +1 more
TL;DR: In this paper, the authors present an experimental investigation on the durability properties of metakaolin (MK) and bottom ash (BA) blended geopolymer concrete under different environmental exposure.
Book ChapterDOI
Experiments on the Workability of Steel Fiber Reinforced Concrete
Swapnil Kore,Shardul G. Joshi +1 more
TL;DR: In this article, fly ash, alkaline solution (NaOH solution), and viscosity-enhancing agent (poly-carboxylate ether) are used to study their effect on the workability of steel fiber reinforced concrete.
Journal ArticleDOI
Study on Effect of Superplasticizer on GGBS Blended Geopolymer Concrete
TL;DR: In this paper, the effect of naphthalene-based superplasticizer on geopolymer concrete blended with GGBS was studied, where fly ash was replaced by GGBS at 20% increment levels.
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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