文章基本信息

标题：Effect of desulphurised waste on long-term porosity and pore structure of blended cement pastes
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作者：Jamal M. Khatib ; Jamal M. Khatib ; Lee Wright 等
期刊名称：Sustainable Environment Research
印刷版ISSN：2468-2039
出版年度：2016
卷号：26
期号：5
页码：230-234
DOI：10.1016/j.serj.2016.02.002
语种：English
出版社：Elsevier
摘要：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.
关键词：KeywordsenConcrete technologyDesulphurised wasteFGD wastePorosityPore size distributionSustainability