Journal ArticleDOI
“Fly ash and GGBFS based powder-activated geopolymer binders: A viable sustainable alternative of portland cement in concrete industry”
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TLDR
In this article, two types of powder-activated geopolymer binders having different proportions of fly ash and slag were used in comparison with OPC concrete for four different strength grades (40, 50, 65 and 80 MPa).About:
This article is published in Mechanics of Materials.The article was published on 2016-12-01. It has received 103 citations till now. The article focuses on the topics: Geopolymer & Portland cement.read more
Citations
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A factorial experimental analysis of using wood fly ash as an alkaline activator along with coal fly ash for production of geopolymer-cementitious hybrids.
TL;DR: The focus of this study is to reduce the leachability factor of wood fly ash involved in the alkaline activated process and to understand the effects of various factors (i.e. water-to-ash ratio, method of curing, type of alkaline activator and ash sieving) on the leaching process, through factorial experimental analysis.
Journal ArticleDOI
Sodium hydroxide-free geopolymer binder for prestressed concrete applications
Kamal Neupane,S. Ali Hadigheh +1 more
TL;DR: In this paper, the effects of tensile strength of concrete in load-deflection behaviors of prestressed concrete beams of different spans and sizes are investigated using finite element analysis for short-term and long-term durations.
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Use of Silica Fume and GGBS to Improve Frost Resistance of ECC with High-Volume Fly Ash
TL;DR: In this paper, the influence of silica fume (SF) and ground-granulated blast-furnace slag (GGBS) on the frost resistance of ECC with high volume of FA has been discussed.
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Influence of Water Content on Mechanical Strength and Microstructure of Alkali-Activated Fly Ash/GGBFS Mortars Cured at Cold and Polar Regions
TL;DR: Lower water content is beneficial to improving the early strength of mortar at −5 °C curing condition, while it has little impact on long-term strength.
Journal ArticleDOI
Microcalorimetric study of the effect of calcium hydroxide and temperature on the alkaline activation of coal fly ash
TL;DR: In this paper, the effect of the addition of calcium hydroxide and the temperature on the alkaline activation of coal fly ash with a solution of sodium hydroxides was investigated.
References
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Book
Properties of concrete
TL;DR: In this article, the authors present the following properties of concrete: Elasticity, Shrinkage and Creep, Durabilty of Concrete, Freezing and Thawing, and Chlorides.
Journal ArticleDOI
Geopolymer technology: the current state of the art
Peter Duxson,Ana Fernández-Jiménez,John L. Provis,Grant C. Lukey,Ángel Palomo,J.S.J. van Deventer +5 more
TL;DR: A brief history and review of geopolymer technology is presented with the aim of introducing the technology and the vast categories of materials that may be synthesized by alkali activation of aluminosilicates as mentioned in this paper.
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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.
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The Role of Inorganic Polymer Technology in the Development of ‘Green Concrete’
TL;DR: In this paper, the potential position of and drivers for inorganic polymers (“geopolymers”) as an element of the push for a sustainable concrete industry are discussed.
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The greening of the concrete industry
TL;DR: The concrete industry is known to leave an enormous environmental footprint on Planet Earth as discussed by the authors, which contributes to the general appearance that concrete is not particularly environmentally friendly or compatible with the demands of sustainable development.