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- 新型墙体材料与施工
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石膏晶须对石膏砌块性能的影响研究
作者：韩龙，高建明，唐永波，杨锋
（东南大学 材料科学与工程学院，江苏 南京 211189）
摘要：含有半个结晶水的石膏晶须具有堆积密度低、能够水化凝结硬化等特点。尝试以石膏晶须作为轻质胶凝材料，研究石膏晶须对石膏砌块表观密度、断裂荷载、抗压强度和软化系数等的影响。试验结果表明，在相同的表观密度下，掺石膏晶须的石膏砌块断裂荷载、抗压强度、软化系数均比掺膨胀珍珠岩的石膏砌块高，相对于膨胀珍珠岩，石膏晶须可有效减小石膏砌块强度损失。
关键词：石膏砌块；石膏晶须；膨胀珍珠岩；表观密度；断裂荷载
中图分类号：TU552 文献标识码：A 文章编号：1001-702X（2018）10-0109-04
Study on the effect of gypsum whisker on the properties of gypsum block
HAN Long，GAO Jianming，TANG Yongbo，YANG FENG
（College of Materials Science and Engineering，Southeast University，Nanjing 211189，China）
Abstract：The gypsum whisker containing half crystalline water has the characteristics of low bulk density and capable of hydration and hardening. This paper attempts to use gypsum whiskers as lightweight cementitious materials to study the effect of gypsum whiskers on the properties of gypsum block such as apparent density，fracture load，compressive strength and softening coefficient. The experimental results show that under the same apparent density，the fracture load，compressive strength and softening coefficient of gypsum blocks with gypsum whiskers are all higher than those of gypsum blocks with expanded perlite，and gypsum whisker can effectively reduce the strength loss of gypsum blocks compared with expanded perlite.
Key words：gypsum block，gypsum whisker，expanded perlite，apparent density，fracture load