作　　者： ; ;

机构地区： 华南建设学院

出　　处： 《湖南大学学报（自然科学版）》 1994年第4期121-128,共8页

摘　　要： 本文通过ＸＲＤ相分析和强度测试研究了氯氧镁水泥硬化体强度在水中损失的原因和规律，证明：强度损失的主要原因是硬化体中水化物５相在水中的水解反应，它导致了硬化体组成与结构的变化；水中强度损失规律遵循着指数函数。讨论了影响强度损失的因素，得出强度损失速率与损失率主要取决于５相在水中的水解反应速率，因而，要减少硬化体强度在水中的损失，必须抑制５相的水解反应，这是改善氯氧镁水泥耐水性的最重要途径。 In this paper,the reason and law of the strengths losses of magnesiumoxychloride cement(MOC)stone acted in water were investigated by XRD analysis andin strength tests. The results shown:main reason of the strength losses was the hydrolysis of 5 phase in MOC stone in water to cause the change of the composition and structure of the stone,and the declining pattern of the strength in water was expressed by aexponential function. Also, the factors influencing the strength losses were discussed.Itwas developed that the rate and ratio of the losses mainly depended on the rate of thehydrolysis reaction of 5 phase in water,So,in order to decrease the losses we must inhibite the hydrolysis reaction of 5 phase. It is a very important way to improve the water-resistance of MOC.

关 键 词： 氯氧镁水泥 耐水性 强度 水解反应

领　　域： [化学工程] [化学工程]