摘要
研究了蛇纹石(3MgO·2SiO2·2H2O)脱水再复水在水热条件下的胶凝性。研究结果表明,未脱水的蛇纹石不具有胶凝性;脱水蛇纹石在常温下基本不具有胶凝性;在常压蒸汽养护条件下有一定的胶凝性;在蒸压养护条件下有较好的胶凝性,其蒸压水化产物仍为蛇纹石。蛇纹石在780℃左右脱去结构水,矿物结构破坏,在此温度下的脱水蛇纹石,经过蒸压条件处理,胶凝性最好。MgO,粉煤灰和生石灰对脱水蛇纹石的胶凝性均有改善作用。
A study on the cementitious behaviour of the dehydrated serpentine under different hydrothermal conditions is presented in the paper.The results show that the dehydrated serpentine has no cementation basically in standard curing(20±3℃),has a little cementation in steam curing(95~100℃),and has fairly good cementation in autoclave curing (174.5℃).
出处
《硅酸盐学报》
EI
CAS
CSCD
北大核心
1997年第4期384-388,共5页
Journal of The Chinese Ceramic Society
基金
国家建材局基金
四川省科学基金
关键词
蛇纹石
胶凝性
脱水
水热条件
硅酸钙
serpentine,dehydration by heating,cementation,autoclave curing