不同无机早强剂对钢渣胶凝材料早期强度的影响  

Effect of Different Inorganic Accelerarors on Early Strength of Steel Slag Cementitious Materials

作　　者：罗珣[1] 刘家祥[1] 王博[1] 朱桂林[2] 卢忠飞[2] 

机构地区：[1]北京化工大学材料科学与工程学院化工资源有效利用国家重点实验室,北京100029 [2]中冶建筑研究总院有限公司,北京100088

出　　处：《矿产综合利用》2010年第5期36-39,共4页Multipurpose Utilization of Mineral Resources

摘　　要：研究了不同无机早强剂对新余钢铁公司热泼钢渣早期强度的影响。结果表明:硫酸盐激发剂、碱激发剂均能提高钢渣胶凝材料的早期强度;复掺激发剂比单掺激发剂效果更好;碱激发和硫酸盐激发共同作用时,比单独的碱激发或硫酸盐激发更能提高钢渣胶凝材料的早期强度。效果最好的是CaSO4.1/2H2O和NaOH以1%∶0.4%的比例复掺,使钢渣胶凝材料的3d抗压强度比不掺早强剂时提高54.5%,7d强度提高15.2%。Effects of different inorganic accelerators on early strength of steel slag cementitious materials are studied.The results showed that both sulfate-activators and alkali-activators can improve the early strength of steel slag cementitious materials;accelerating effect of compound agents on early strength of steel slag cementitious materials are better than single agent;combination of alkali-activating and sulfate-activating has better effect on steel slag cementitious materials than alkali-activating or sulfate-activating.The optimum combination of alkali-activator and sulfate-activator is CaSO4·1/2H2O and NaOH combinated in the proportion of 1%∶0.4%,3d compressive strength is increased by 54.5%,7d compressive strength is increased by 15.2%.

关 键 词：钢渣 早强剂 碱激发剂 硫酸盐激发 

分 类 号：TU528.042[建筑科学—建筑技术科学]