尾矿砂石混凝土ASR预防的试验研究  

An Experimental Research on the ASR Prevention of the Tailing Dinax Concrete

作　　者：孙玉良[1,2] 赵芸平[3] 阎嘉旺[3] 

机构地区：[1]河北理工大学,河北唐山063009 [2]唐山市建设工程质量监督检测站,河北唐山063000 [3]唐山学院,河北唐山063020

出　　处：《建材技术与应用》2009年第7期1-3,共3页Research and Application of Building Materials

基　　金：国家自然科学基金项目(50602016);河北理工大学材料学院基金项目(20073158B)

摘　　要：按照快速碱硅酸反应(ASR)检验方法,通过对不同骨料预防ASR的系统试验研究,探讨了粉煤灰、矿渣粉、尾矿砂对预防ASR的效果。结果表明,分别用30%的粉煤灰和50%的矿渣粉替代水泥,可抑制尾矿砂的碱硅酸反应,并且用粉煤灰和矿渣粉替代部分尾矿砂的抑制效果更好;尾矿砂中的微粉对抑制碱硅酸反应是有益的。According to the ASR examination method and based on the systematic experimental research on different aggregates preventing the ASR, the present proper explored different ASR prevention results of fly ash, slag power and tailings. The research shows that the ASR can be restricted if the cement is replaced by the 30 % of the fly ash and the 50 % of the salag power. Further more, using fly ash and salag power to replace tailings is much better than that of cement, and for the prevention of the ASR, the microprowder is beneficial.

关 键 词：尾矿砂 粉煤灰 碱硅酸反应 混凝土 

分 类 号：TU528.04[建筑科学—建筑技术科学]