Effect of desulphurised waste on long-term porosity and pore structure of blended cement pastes

KHATIB, Jamal M., WRIGHT, Lee and MANGAT, Pal S. (2016). Effect of desulphurised waste on long-term porosity and pore structure of blended cement pastes. Sustainable Environment Research, 26 (5), 230-234.

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Official URL: http://www.sciencedirect.com/science/article/pii/S...
Link to published version:: 10.1016/j.serj.2016.02.002

Abstract

This paper presents some results on the porosity and pore size distribution of cement paste containing simulated desulphurised waste (SDW) cured for 90 d. The SDW was chosen for the investigation due to the variability in chemical composition of real desulphurised waste as explained in previous papers. The SDW is a combination of 85% fly ash and 15% gypsum. The cement in the pastes was replaced with 0, 20 and 40% SDW. The water to binder ratio was 0.5. The binder consists of cement and SDW (by weight). After 90 d of curing, the porosity and pore size distribution tests were conducted on the pastes. Increasing the amount of SDW leads to an increase in the pore volume of the paste. There is no clear trend on the effect of SDW on the size of the pores.

Item Type: Article
Uncontrolled Keywords: Concrete technology; Desulphurised waste; FGD waste; Porosity; Pore size distribution; Sustainability
Research Institute, Centre or Group: Materials and Engineering Research Institute > Structural Materials and Integrity Research Centre > Centre for Infrastructure Management
Identification Number: 10.1016/j.serj.2016.02.002
Depositing User: Carmel House
Date Deposited: 24 Oct 2016 11:42
Last Modified: 14 Jun 2017 21:32
URI: http://shura.shu.ac.uk/id/eprint/13850

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