Influence of High-silicon Limestone on Mineral Structure and Performance of Belite-Barium Calcium Sulphoaluminate Clinker

Abstract:

The mineral structure and performance of belite-barium calcium sulphoaluminate cement clinker were investigated by petrographic analysis, X-ray diffraction and scanning electron microscopy, while raw materials were studied by differential thermal analysis, thermogravimetric analysis and X-ray diffraction. The results show that high-silicon limestone has low decomposition temperature which can promote the development of alite by adding small quantity. The formation and development of C3S is hindered in α-quartz while C3S is formed easily by mixing magnesite and dolomite in the low temperature. The proper proportions of high-silicon limestone and ordinary limestone is 1:5, and the compressive of this cement at 3, 7, 28 d are 37.9, 60.3, 87.9 MPa, which shows excellent mechanical properties.

• Periodical: Advanced Materials Research (Volumes 168-170)
• Pages: 460-465
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.168-170.460
• Online since: December 2010
• Authors: Pi Qi Zhao, Ling Chao Lu, Shou De Wang
• Keywords: Barium Calcium Sulphoaluminate, Belite, Cement Clinker, High-Silicon Limestone

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