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 paper, three different metakaolins (K1, K2, K3) from sources in Cameroon were applied for producing geopolymer cements, and three different kaolins differ significantly in their gibbsite and quartz contents.
113 citations
TL;DR: In this paper, the compressive strengths of fly ash geopolymer with microwave radiation followed by conventional heat curing were comparable to those of the control cured at 65°C for 24h.
113 citations
TL;DR: In this paper, the effect of micro-encapsulated phase change materials (MPCM) in solid and liquid states on the mechanical properties and microstructure of geopolymer and Portland cement concretes is investigated.
113 citations
TL;DR: In this paper, the effects of alkaline solution reactivity and metakaolin properties on geopolymer formation were examined using FTIR spectroscopy and pH values during material formation.
Abstract: This paper focuses on the effects of alkaline solution reactivity and metakaolin properties on geopolymer formation. To examine these effects, several geopolymer samples were synthesized from two alkaline solutions and four metakaolins. The structural evolution of the formed geopolymers was investigated using FTIR spectroscopy and pH values during the material formation. The mechanical properties were measured using compression tests. The results show that the type and amount of siliceous species and non-bridging oxygen atoms control the alkaline solution reactivity. The effect of the metakaolin reactivity is more significant when it is activated with a poorly reactive alkaline solution. However, the alkaline solution governs the reaction when it is highly reactive. Therefore, the extent of depolymerization of the alkaline solution and the reactivity of metakaolin are crucial parameters that control the rate of polycondensation and the compressive strengths of geopolymer materials.
113 citations
TL;DR: In this paper, the synthesis and characterization of geopolymer foams using hydrogen peroxide (H2O2) solution as pore-forming agent and oil as stabilizing agent is described.
Abstract: Geopolymer foams, as a new type of potential eco-friendly building material, are increasingly being discussed in the literature. This study reports the synthesis and characterization of geopolymer foams using hydrogen peroxide (H2O2) solution as pore-forming agent and oil as the stabilizing agent. The geopolymer foams with low bulk densities (0.37
113 citations