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.
Papers published on a yearly basis
Papers
More filters
TL;DR: In this paper, a new geopolymer/alginate hybrid spheres (GAS-4) was fabricated from the green geopolymers and sodium alginate by a feasible one-pot method.
136 citations
TL;DR: In this paper, the effect of sodium silicate/sodium hydroxide ratios on the feasibility of geopolymer synthesis at 80°C using fly ash was investigated and the result showed that compressive and flexural strength increases as the curing age increases.
Abstract: Geopolymerization can transform a wide range of waste aluminosilicate materials into building and mining materials with excellent chemical and physical properties. The present experimental study investigates the effect of sodium silicate/sodium hydroxide ratios on the feasibility of geopolymer synthesis at 80 °C using fly ash. The sodium silicate/sodium hydroxide (S/N) ratios 0.5, 1.0, 1.5, 2.0 and 2.5 were studied. The result showed that the compressive and flexural strength increases as the curing age increases. Also, the compressive strength increases as the sodium silicate/sodium hydroxide ratio increases from 0.5 to 1.0 and then decreases. Morphology studies, conducted by SEM analysis of the geopolymer samples, indicated that geopolymers gel had the fly ash particles and pores embedded in a continuous matrix. At S/N = 1 a homogeneous and less porous microstructure was observed.
135 citations
TL;DR: In this paper, the effect of mix design on both reactions is discussed and correlated with the properties of the resulting geopolymer foams, and the mesoscale-based finite element analysis is performed to create a predictive tool for correlating the pore size distribution with their mechanical properties.
135 citations
TL;DR: In this paper, a sustainable ultra-lightweight geopolymer concrete (with a dry density ≤ 800 kg/m3) was developed for both thermal insulating and load bearing purposes.
134 citations
TL;DR: In this paper, the effect of elevated temperature on the thermal-physical behaviors and mechanical properties of fly ash-based geopolymer paste was investigated, and a positive linear relationship between the bond strength and the compressive strength was found for both GPC and OPC.
134 citations