碱矿渣水泥石抗碳硫硅钙石型硫酸盐腐蚀性能
发布时间：2019-02-26 14:37
【摘要】：研究了外掺10%(质量分数)石粉的普通硅酸盐水泥石和以水玻璃为碱组分的碱矿渣水泥石抗碳硫硅钙石型硫酸盐腐蚀(TSA)性能及硅灰和粉煤灰对水玻璃-矿渣水泥石抗TSA性能的影响.采用X射线衍射(XRD)、傅里叶转换红外光谱(FTIR)等方法分析了水泥石在(5±2)℃,5%(质量分数)MgSO4溶液中浸泡4a的腐蚀产物,并通过压汞法测试了硬化碱矿渣水泥石的孔结构.结果表明:普通硅酸盐水泥石在试验条件下发生了典型的TSA,水玻璃-矿渣水泥石仅受到轻微的石膏型硫酸盐腐蚀,未发生TSA;硅灰等质量取代10%矿渣及粉煤灰等质量取代20%,40%矿渣的试件几乎未受到硫酸盐腐蚀.水玻璃-矿渣水泥石抗TSA性能较好的原因主要是该水泥体系水化产物为低碱度水化硅酸钙,且孔结构优良.
[Abstract]:In this paper, the anti-(TSA) properties of ordinary silicate clay mixed with 10% (mass fraction) stone powder and alkali slag cement stone with water glass as alkali component are studied, and the effect of silica fume and fly ash on water glass-ore formation is also studied in this paper. The corrosion resistance of silica fume and fly ash to water-glass-ore is also studied in this paper. Effect of slag cement stone on TSA resistance. The corrosion products of cement paste immersed in (5 卤2) 鈩，
本文编号：2430871
[Abstract]:In this paper, the anti-(TSA) properties of ordinary silicate clay mixed with 10% (mass fraction) stone powder and alkali slag cement stone with water glass as alkali component are studied, and the effect of silica fume and fly ash on water glass-ore formation is also studied in this paper. The corrosion resistance of silica fume and fly ash to water-glass-ore is also studied in this paper. Effect of slag cement stone on TSA resistance. The corrosion products of cement paste immersed in (5 卤2) 鈩，
本文编号：2430871
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