含钡硫铝酸盐水泥混凝土的抗渗透性能研究  

Study of Impermeability of Ba-Containing Sulphoaluminate Cement Concrete

作　　者：叶正茂[1] 常钧[1] 芦令超[1] 程新[1] 

机构地区：[1]济南大学材料科学与工程学院,山东济南250022

出　　处：《建筑材料学报》2007年第5期588-591,共4页Journal of Building Materials

基　　金：国家自然科学基金资助项目(50672033);山东省自然科学基金重点资助项目(Z2006F01);济南市科技攻关计划资助项目(051085)

摘　　要：通过对含钡硫铝酸盐水泥混凝土的抗压强度、抗渗性能及氯离子扩散系数的测定,同时借助SEM,压汞仪等测试手段,研究和分析了含钡硫铝酸盐水泥混凝土的水化过程及抗渗透性机理.结果表明,与硅酸盐水泥混凝土相比,含钡硫铝酸盐水泥混凝土具有较低的孔隙率和更合理的孔径分布,致密度高,抗压强度高,抗渗透性能优良.Compressive strength, impermeability and chloride ion diffusion coefficient of sulphoaluminate cement concrete and Portland cement concrete were tested. The hydration process and the impermeability mechanism of sulphoaluminate cement were studied by means of SEM, mercury intrusion porosimetry. The results show that sulphoaluminate cement concrete have better properties than Portland cement concrete, higher compressive strength, better impermeability, lower diffusion coefficient, because of lower porosity and better distribution of pore diameter.

关 键 词：含钡硫铝酸盐水泥混凝土 抗渗透性 扩散系数 抗压强度 孔隙率 

分 类 号：TQ172.7[化学工程—水泥工业]