天然硬石膏的活性激发和膨胀控制  

Activation and expansion control of natural anhydrite

作　　者：王娟[1] 王培铭[1] 

机构地区：[1]同济大学先进土木工程材料教育部重点实验室,上海201804

出　　处：《新型建筑材料》2011年第4期1-4,共4页New Building Materials

摘　　要：使用煅烧明矾、矿渣、水泥3种典型激发剂对天然硬石膏进行活性激发,研究了激发后天然硬石膏的凝结时间、强度、吸水率、软化系数、膨胀率等性能,并通过激发剂复掺控制了硬石膏的体积过度膨胀。In this paper, natural anhydrite as the main raw material was aetivated by calcine alum,slag powder, and cement. Setting time,strength,water absorption,soften coefficient,and expansion rate of natural anhydrite after activation were investigated. And the volume over-expansion of the anhydrite was controlled by composite doping of activators.

关 键 词：天然硬石膏 煅烧明矾 矿渣 水泥 膨胀率 

分 类 号：TQ177.311[化学工程—硅酸盐工业]