石膏对改性硅酸盐水泥性能的影响  

Effect of gypsum on properties of modified Portland cement

作　　者：任书霞[1] 陈志新 翟国芳[3] 李仕群[4] 

机构地区：[1]石家庄铁道学院材料分院,河北石家庄050043 [2]北京看丹合力混凝土有限公司,北京100070 [3]北京汽车玻璃钢有限公司,北京102101 [4]济南大学材料分院,山东济南250022

出　　处：《水泥》2008年第3期5-7,共3页Cement

摘　　要：将磷铝酸盐水泥熟料掺入硅酸盐水泥中改性后,运用XRD和SEM等测试技术,研究了石膏对改性硅酸盐水泥性能的影响。结果表明,石膏的掺入可以改善改性硅酸盐水泥的力学性能和抗冻性;在石膏掺量为3.5%时,改性硅酸盐水泥水化速度最快,硬化浆体的结构最致密,强度最高,抗冻性最好。The influence of different amount of gypsum on the modified Portland cement prepared by mixing phosphoaluminate cement with Portland cement was studied. The results showed that the mechanical properties and freezethaw resistance of the modified Portland cement could be improved by gypsum; and the best result, including the rate of hydration, the structure density of the hardened paste, the compression strength, and freeze-thaw resistance would be presented, if the 3.5% of gypsum has been added.

关 键 词：改性硅酸盐水泥 石膏 力学性能 抗冻性 

分 类 号：TQ172.462[化学工程—水泥工业]