Characteristics of municipal solid wastes incineration (MSWI) fly ash-cement matrices and effect of mineral admixtures on composite system

被引：85

作者：

Shi, Hui-sheng ^{[1
]}

Kan, Li-li ^{[1
]}

机构：

[1] Tongji Univ, Key Lab Adv Civil Engn Mat, Educ Minist, Shanghai 200092, Peoples R China

来源：

CONSTRUCTION AND BUILDING MATERIALS | 2009年 / 23卷 / 06期

关键词：

Municipal solid waste incineration (MSWI) fly ash; Mineral admixture; Physical property; Mechanical property; Heavy metal; Leaching toxicity; HYDRATION; BEHAVIOR; METALS;

D O I：

10.1016/j.conbuildmat.2008.12.016

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

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.

引用

页码：2160 / 2166

页数：7

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