Influence of MgO on Sintering and Property of Belite-Barium Calcium Sulphoaluminate Cement

Abstract:

The effect of MgO on performance of belite-barium calcium sulphoaluminate cement (B-CBAS) was investigated through orthogonal tests. The results show that the formation of C₃S can be improved at low temperatures by mixing MgO. SO₃ decreasing the viscosity of fused mass in sintering process was beneficial to solid solution of MgO in B-CBAS clinker. The solid solubility of MgO in B-CBAS was higher than that of Portland cement, which indicated that high-magnesium limestone can be used in B-CBAS. Even MgO content reached 5.14%, the soundness of B-CBAS was still in safe, whose compressive strength at 3d and 28d curing age were 49.1MPa and 81.9MPa. This indicated that this kind of cement has good mechanical properties.

• Periodical: Applied Mechanics and Materials (Volumes 152-154)
• Pages: 68-73
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.152-154.68
• Online since: January 2012
• Authors: Ling Chao Lu, Shou De Wang, Hui Wang
• Keywords: Barium Calcium Sulphoaluminate, Belite, Magnesium Oxide, Soundness

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