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混合材对MSWI制CSA水泥性能的影响
引用本文:郭晓潞,施惠生.混合材对MSWI制CSA水泥性能的影响[J].土木建筑与环境工程,2014,36(4):87-91.
作者姓名:郭晓潞  施惠生
作者单位:同济大学 先进土木工程材料教育部重点实验室环境材料研究所,上海 201804;同济大学 先进土木工程材料教育部重点实验室环境材料研究所,上海 201804
基金项目:国家“863”计划(2006AA06Z363);国家环境保护公益性行业科研专项(201209026)
摘    要:以城市垃圾焚烧飞灰(MSWI)为主要原料,在实验室成功烧制了硫铝酸钙(CSA)水泥熟料。研究了单掺或复掺不同种类、不同掺量的混合材后,CSA水泥的力学性能和水化性能。结果表明:石灰石粉(LI)/矿渣粉(SL)在CSA水泥中较为适用,而粉煤灰(FA)/MSWI的活性较差;单掺4种混合材均对CSA水泥早期强度产生不利影响;单掺LI/SL对后期强度发展有益;复掺混合材较单掺效果好,尤其是试样10%LI+10%SL、10%LI+10%MSWI和5%LI+15%SL。

关 键 词:城市垃圾焚烧飞灰(MSWI)  硫铝酸钙(CSA)水泥  混合材  抗压强度
收稿时间:2013/12/15 0:00:00

Effects of Cement Additives on Properties of CSA Cement from MSWI
Guo Xiaolu and Shi Huisheng.Effects of Cement Additives on Properties of CSA Cement from MSWI[J].土木建筑与环境工程,2014,36(4):87-91.
Authors:Guo Xiaolu and Shi Huisheng
Affiliation:Key Laboratory of Advanced Civil Engineering Materials, Ministry of EducationInstitute of environmental materials, Tongji University, Shanghai 201804, P. R. China;Key Laboratory of Advanced Civil Engineering Materials, Ministry of EducationInstitute of environmental materials, Tongji University, Shanghai 201804, P. R. China
Abstract:Municipal solid waste incineration fly ash (MSWI) was successfully used as raw material in sintering and preparing a calcium sulphoaluminate (CSA) cement clinker in laboratory. The effects of different types and different addition percentages of cement additives on compressive strength and hydration properties were investigated. The results showed that lime (LI) powder / slag (SL) powder was compatible in CSA cement system while the activities of fly ash(FA)/ MSWI was low. Adding these four types of cement additives in CSA cement system respectively, there were negative effects on compressive strengths of hardened cement at early age while LI/SL improved the compressive strength at later age. The performance of combined additives was better, especially, the specimens with 10%LI+10%SL, 10%LI+10%MSWI, and 5%LI+15%SL.
Keywords:municipal solid waste incineration fly ash (MSWI)  calcium sulphoaluminate(CSA) cement  cement additive  compressive strength
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