钢渣-粉煤灰基复合硅酸盐水泥的试验研究  

Experimental investigations on steel slag-fly ash composite Portland cement

作　　者：孙小巍[1] 李殿平[2] 徐鹏程 

机构地区：[1]沈阳建筑大学材料科学与工程学院,辽宁沈阳110168 [2]大连海洋大学应用技术学院,辽宁大连116300 [3]中建三局集团有限公司,湖北武汉430064

出　　处：《混凝土》2016年第9期72-75,共4页Concrete

基　　金：国家自然科学基金(51078241);中国建筑材料联合会(2013-M3-8)

摘　　要：采用钢渣和粉煤灰作为活性混合材,加以硅酸盐水泥熟料、二水石膏以及少量助磨剂、激发剂,制备42.5级复合硅酸盐水泥。试验主要研究了助磨剂、粉磨时间、钢渣与粉煤灰复合比例以及激发剂对复合硅酸盐水泥物理性能影响的规律。试验结果表明:助磨剂与激发剂有助于复合水泥胶砂强度的提高;延长粉磨时间,水泥比表面积增大,活性增强,力学性能得到提升;钢渣与粉煤灰的复合比例对水泥凝结时间影响不大,但对水泥抗折与抗压强度影响较大。Using steel slag and fly ash as activity mixed materials,adding Portland cement clinker,dihydrate gypsum and a small amount of activator and grinding aids,the grade 42.5composite Portland cement was achieved successfully.The effect of grinding aids,grinding time,the composite ratio of steel slag and fly ash and activator on the properties of composite Portland cement were studied.The results show that grinding aids and activator are beneficial to the improvement of the composite Portland cement mortar strength.Extend grinding time made the cement specific surface area bigger and the cement activity enhanced,so the mechanical performance of cement was improved.The composite ratio of steel slag and fly ash on flexural strength and compress strength had a great influence,but it had little effect on the cement setting time.

关 键 词：钢渣 粉煤灰 复合硅酸盐水泥 性能 

分 类 号：TU528.041[建筑科学—建筑技术科学]