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| Study of the cement clinker minerals in the CaO-SiO2-Al2O3-Fe2O3-SO3 system |
| School of Materials Science and Engineering of Beijing University of Technology |
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Abstract Using limestone, anhydrite, fly ash and silica as raw materials, the influence of alkalinity modulus and burning temperature on the formation of clinker minerals were studied under the fixed aluminum /sulfur ratio (P) of 3.82 and alumina content of 10%. The results show that the cement prepared with the alkalinity modulus of 1.2 and the burning temperature of 1375~1425℃ is high-belite Portland cement. C4A3S decomposes into C3A instead of C12A7. The presence of SO3 and C3A improves the formation of C3S at low temperatures and C3S partially decomposes to give α'-C2S. The micromorphology of cement clinker minerals shows no apparent difference.
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Received: 13 January 2010
Published: 15 June 2018
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| [1] |
CHEN Youde, CHENG Liang, ZHENG Dexi, ZHAO Yanyan, ZHENG Jinzhao. [J]. Cement Technology, 2016, 1(6): 24-28. |
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