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Study on properties of belite-barium calcium sulphoaluminate cement

WU Hong-xia,LU Ling-chao,YUAN Wen-hai School of Materials Science and Engineering of Jinan University,Jinan 250022,Shandong,China  
The properties of belite-barium calcium sulphoaluminate cement were studied.The result showed that the cement had high compressive strength at early and long-term stage.If the gypsum content were 10%,the compressive strengths at 3d,7d,28d and 90d curing ages could be 45.0MPa,61.9MPa,82.1MPa and 85.6MPa.The cement had good volume soundness,excellent anti-permeability,excellent sulphate resistance,and the corrosion resistance coefficient exceeded 1.The rate of expansion increased fast at early hydration age(within 14d),and became steady at late hydration age.The rate of expansion increased with increasing of gypsum addition.
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