The Chemical Environment in Cement Matrices

Abstract

AbstractGeneral progress in modelling the behaviour of cement matrices and their interactions with wastes is reviewed in terms of appropriate model-ling concepts and their formulation in terms of parameters Which are susceptible to evaluation. The redox behaviour, particularly of slag-cement blends is shown to differ sharply from that of Portland cement matrices. Experimental methods of measuring Eh and poising capacities are described and the composition of pore fluids determined. Slag cements contain appreciable soluble Sn− species as well as S2O32− and SO42−