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Geopolymer concrete is being proposed as a potential construction material in carbon capture and storage facilities, in particular the harsh chemical environments found in post-combustion capture solvent columns. Geopolymer concrete is synthesised by reacting industrial wastes (coal fly ash and/or metallurgical slags), with an alkali source to form the binder, blended with aggregates (sand and rocks)...
This paper presents a brief review of the role of particle technology in the development of low-CO 2 aluminosilicate ‘geopolymer’ binders and concretes as an alternative to traditional Portland cement-based materials. The role of particle shape in particular is highlighted, both in the context of its effect on paste rheology and on water demand. The spherical particles of fly ash and the platy...
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