| Effects of Cement Additives on Properties of CSA Cement from MSWI |
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| 作者姓名： | Guo Xiaolu and Shi Huisheng |
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| 作者单位： | 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 |
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| 摘 要： | 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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| 关 键 词： | municipal solid waste incineration fly ash (MSWI) calcium sulphoaluminate(CSA) cement cement additive compressive strength |
| 收稿时间： | 2013/12/15 0:00:00 |
Effects of Cement Additives on Properties of CSA Cement from MSWI |
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| Guo Xiaolu and Shi Huisheng.Effects of Cement Additives on Properties of CSA Cement from MSWI[J].Storage & Process,2014(4):87-91. |
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| Authors: | Guo Xiaolu and Shi Huisheng |
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| Institution: | 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 |
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| 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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| Keywords: | municipal solid waste incineration fly ash (MSWI) calcium sulphoaluminate(CSA) cement cement additive compressive strength |
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