混合材对硫铝酸盐水泥性能的影响研究  

Effect of admixture on the properties of sulphoaluminate cement

作　　者：郭俊萍[1] 肖忠明[1] Guo Junping Xiao Zhongming(China Building Material Academy, Beijing, 100024 China)

机构地区：[1]中国建筑材料科学研究总院,北京100024

出　　处：《水泥工程》2017年第4期8-10,共3页Cement Engineering

基　　金：国家科技支撑计划项目(2014BAB15B02-01);国家重点研发计划(2016YFB0303504-01-02)

摘　　要：通过矿渣,粉煤灰和石灰石三种混合材料的单掺、复掺,研究了混合材料对硫铝酸盐水泥性能的影响。研究结果表明,混合材料能够实现对硫铝酸盐水泥的改性,且复掺效果优于单掺;其机理主要是改变了钙矾石的形貌、降低了浆体的膨胀率、密实了浆体结构和减少了硬化浆体的微裂纹。The influence of three kinds of mixing materials（slag, fly ash and limestone） on the properties of sulphoaluminate cement was studied by adding one or two of the admixture. The results show that the the admixtures can realize the modification of sulphoaluminate cement, and the effect of adding two is better than that of single doped, and the mechanism is mainly to change the morphology of ettringite reduced the slurry expansion rate, compacting the paste structure and reduce the micro cracks of hardened paste.

关 键 词：硫铝酸盐水泥 混合材 矿渣 粉煤灰 石灰石 单掺 复掺 水泥性能 

分 类 号：TQ172.45[化学工程—水泥工业]