Factors affecting the geopolymerization of alkali-feldspars

From: Minerals & Metallurgical Processing | Date: November 1, 2002| Author: van Deventer, J S J; Xu, H | Copyright information

Abstract

Geopolymerization is a process by which Al-Si minerals undergo dissolution and polymerization in an alkaline solution to form a monolithic material with a high mechanical strength (Davidovits, 1991, 1994). In this study, the factors affecting the geopolymerization of Na-feldspar (albite) and K-feldspar (microcline) were investigated. It was found that both Na-feldspar and K-feldspar are reactive in geopolymerization with the resultant geopolymers showing a high compressive st...

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