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何谓水泥的体积安定性?引起水泥体积安定性不良的原因是什么?

问答题
2022-01-02 01:00
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正确答案

水泥的体积安定是指水泥浆体硬化后体积变化的均匀性。即水泥硬化浆体能保持一定的形状,具有不开裂,不变形,不溃散的性质。
导致水泥安定不良的主要原因是:
1)熟料中含有过多的游离氧化钙和游离氧化镁。
2)掺入石膏过多。


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