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石膏制品有哪些特点?

问答题
2022-04-02 12:11
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正确答案
(1)凝结硬化快,强度低;
(2)硬化后体积微膨胀;
(3)孔隙率大,表观密度小,保温隔热效果好;
(4)耐水性差,抗冻性差;
(5)吸声效果好;
(6)具有调节室内湿度的功能;
(7)防火性能好;
(8)加工性能好.

试题解析

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