期刊
CONSTRUCTION AND BUILDING MATERIALS
卷 23, 期 6, 页码 2160-2166出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.conbuildmat.2008.12.016
关键词
Municipal solid waste incineration (MSWI) fly ash; Mineral admixture; Physical property; Mechanical property; Heavy metal; Leaching toxicity
资金
- National Nature Science Foundation Project of China [20277027]
- National High Technology Research and Development Program (863 Program) of China [2006AA06Z363]
An experimental work was carried out to investigate the feasibility of application of MSWI fly ash as an auxiliary cementitious material. The water demand for normal consistency, setting time, volume stability, flexural and compressive strength of MSWI fly ash-cement compound matrices were tested. And, the composite effect and the influence of mechanical properties and heavy metals solidification are studied by mixing MSWI fly ash-cement matrices with common mineral admixtures. The results show that the MSWI fly ash has some cementitious activity, but the reactivity is relatively lower and its addition to cement may lead to retardation of cement hydration. After incorporation of common mineral admixtures. the strength of solidified body was enhanced, and the effect of the heavy metals-immobilizing may be reinforced. (C) 2008 Elsevier Ltd. All rights reserved.
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