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硫铝酸盐水泥泡沫混凝土的物理性能研究
作者：余胜1，白应华1，陈伟2
（1.湖北工业大学 土木建筑与环境学院，湖北 武汉 430064；
2.武汉理工大学 材料科学与工程学院，湖北 武汉 430070）
摘要：研究了掺入偏高岭土和玻璃纤维后硫铝酸盐水泥泡沫混凝土含水率、吸水率、软化系数、干燥收缩和导热系数的变化。结果表明：掺入偏高岭土和玻璃纤维降低了泡沫混凝土的软化系数和导热系数；偏高岭土使泡沫混凝土的含水率和吸水率增大，掺入5%的偏高岭土降低了混凝土的干燥收缩；掺玻璃纤维泡沫混凝土的含水率和吸水率呈先增大后略微减小，当掺入0.10%的玻璃纤维时，泡沫混凝土的软化系数最小。
关键词：硫铝酸盐；泡沫混凝土；偏高岭土；玻璃纤维
中图分类号：TU528.2 文献标识码：A 文章编号：1001-702X（2019）02-0098-04
Study on physical properties of sulfoaluminate cement foamed concrete
YU Sheng1，BAI Yinghua1，CHEN Wei2
（1.School of Civil Engineering，Architecture and Environment，Hubei University of Technology，Wuhan 430064，China；
2.School of Materials Science and Engineering，Wuhan University of Technology，Wuhan 430070，China）
Abstract：The changes of water content，water absorption, softening coefficient, drying shrinkage and thermal conductivity of sulphoaluminate cement foamed concrete after blending with metakaolin（MK） and glass fiber（GF） were studied. The results show
that the blended metakaolin and glass fibers reduce the softening coefficient and thermal conductivity of foamed concrete. In addition，metakaolin caused the increase of water content and water absorption of foamed concrete. Incorporation of 5% of metakaolin reduced the drying shrinkage of concrete. The water content and water absorption rate of foamed concrete incorporated with glass fiber first increased and then decreased slightly. When blended with 0.10% glass fiber，foamed concrete has the lowest softening coefficient.
Key words：sulphoaluminate，foamed concrete，metakaolin，glass fiber