External chemical shrinkage of pastes containing Flue Gas Desulphurisation (FGD) Waste

KHATIB, J. M., WRIGHT, L. and MANGAT, Pal (2011). External chemical shrinkage of pastes containing Flue Gas Desulphurisation (FGD) Waste. Engineering sciences, 6 (4), 1669-1675.

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Abstract

The effect of including flue gas desulphurisation (FGD) waste on total chemical shrinkage of cement paste up to 7 days is reported. The FGD wastes were obtained from different plants located in different countries which vary in compositions. Also simulated FGD wastes were prepared in the laboratory which is a blend of fly ash and gypsum. Pastes were prepared with water to binder ratio of 0.5. The binder consists of cement and FGD. Cement was replaced with 25% (by weight) of different FGD materials. The results reported show varying trend depending upon chemical composition. Using calcium sulphate based FGD waste in cement paste, both the short and long-term total chemical shrinkage were reduced. For paste containing SiO2-Al2O3-CaSO4 based waste the total chemical shrinkage was reduced.

Item Type: Article
Research Institute, Centre or Group: Materials and Engineering Research Institute > Structural Materials and Integrity Research Centre > Centre for Infrastructure Management
Depositing User: Helen Garner
Date Deposited: 01 Oct 2012 11:58
Last Modified: 29 Jul 2013 10:55
URI: http://shura.shu.ac.uk/id/eprint/6434

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