Topic
Geopolymer
About: Geopolymer is a research topic. Over the lifetime, 6776 publications have been published within this topic receiving 157991 citations. The topic is also known as: geopolymers.
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TL;DR: In this article, the authors compared the performance of AAS concrete and low calcium fly ash geopolymer (FAGP) concretes up to 540 days and found that AAS had higher compressive and tensile strength, elastic modulus and lower permeation characteristics than FAGP concrete.
139 citations
TL;DR: In this paper, the effects of fibers on the mechanical properties of fly ash-steel slag based geopolymer were studied with the aim of recycling solid wastes, and developing a sustainable alternative to Portland cement.
139 citations
TL;DR: In this article, the effects of alkali activator and curing time on unconfined compressive strength (UCS) and microstructural characteristics of marginal lateritic soil (LS) stabilised with high calcium fly ash (FA)-based geopolymer, which is novel in the field of pavement geotechnics was also evaluated through laboratory evaluation tests.
Abstract: Marginal soils are traditional stabilised with Portland Cement (PC) when used as a pavement material. The production of PC is however an energy-intensive process and emits a large amount of greenhouse gas into the atmosphere. Geopolymer is an environmentally friendly ‘green’ binder commonly used in building applications but rarely used in pavement applications. The application of geopolymer to marginal soil stabilisation is an innovative approach given the increasing scarcity of virgin quarry materials in many countries. This research investigates the effects of alkali activator and curing time on unconfined compressive strength (UCS) and microstructural characteristics of marginal lateritic soil (LS) stabilised with high calcium fly ash (FA)-based geopolymer, which is novel in the field of pavement geotechnics. The viability of using this stabilised material as a bound pavement material was also evaluated through laboratory evaluation tests. A liquid alkali activator was a mixture of sodium silicate (Na2...
139 citations
TL;DR: In this article, the incorporation of nano-silica in fly ash based geopolymer binders has been investigated in order to understand its effect on the strength and microstructural development.
139 citations
TL;DR: In this article, an experimental investigation on the thermo-mechanical properties of geopolymers prepared using a class F fly ash, KOH and Na2SiO3 is presented.
139 citations