通过测定同水胶比下拜耳法赤泥与普通硅酸盐水泥、硫铝酸盐水泥复配的水泥浆体孔溶液pH值和抗压强度,结合XRD分析研究了赤泥掺量对复配体系孔溶液碱度及抗压强度的影响.研究表明,普通硅酸盐水泥浆体和硫铝酸盐水泥浆体孔溶液碱度均随赤泥掺量的增加而增大.掺入赤泥并不会引起水泥水化后期孔溶液碱度的增加.普通硅酸盐水泥中赤泥掺量宜控制在30%以内,而硫铝酸盐水泥中赤泥掺量则不能超过20%.普通硅酸盐水泥孔溶液碱度发展与强度之间存在明显的相关性.%The pH value and compressive strengh of different bayer red-mud content with ordinary portland cement and sulphoaluminate cement paste pore solution under the same water cement ratio were tested ,The effect the red mud quantity were analyzed by XRD. Test results showed a linear increase in alkalinity of portland cement paste pore solution and sulphoaluminate cement paste pore solution with Bayer red-mud. Red mud would not increase the late alkalinity of cement-based material pore solution. the mixing amount of red mud in the portland cement should be in the range of thirty percent red mud, while the mixing amount of red mud in the sulphoaluminate cement should not exceed twenty percent. The correlation existed obvivualy between the alkalinity and strength of portland cement.
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