混合材对MSWI制CSA水泥性能的影响
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国家“863”计划(2006AA06Z363);国家环境保护公益性行业科研专项(201209026)


Effects of Cement Additives on Properties of CSA Cement from MSWI
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    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。

    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.

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郭晓潞,施惠生.混合材对MSWI制CSA水泥性能的影响[J].土木与环境工程学报(中英文),2014,36(4):87-91. Guo Xiaolu, Shi Huisheng. Effects of Cement Additives on Properties of CSA Cement from MSWI[J]. JOURNAL OF CIVIL AND ENVIRONMENTAL ENGINEERING,2014,36(4):87-91.10.11835/j. issn.1674-4764.2014.04.014

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  • 收稿日期:2013-12-15
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  • 在线发布日期: 2014-09-10
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