研究了活化煤矸石-氢氧化钙体系的水化热、水化产物成分以及活化煤矸石水泥体系的水化过程、水化产物的微结构.结果表明,在石膏的激发下,活化煤矸石能够发生二次水化,与Ca(OH)2反应形成钙矾石、水化硅酸钙、水化铝酸钙等有利于提高水泥石强度的水化产物;活化煤矸石水泥硬化浆体中Ca(OH)2的含量在水化3 d时最多,而后随龄期逐渐减少;阐明了活化煤矸石能够降低水化产物中氢氧化钙的含量、抑制氢氧化钙晶体的生长和聚集,并改善水泥石结构.
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