铁尾矿砂混凝土的和易性与强度特点  

Working property and strength of the concrete mixed with Iron ore gangue

作　　者：宋裕增[1] 刘淑婷 蔡基伟[3] 封孝信[3] 张少波[3] 

机构地区：[1]唐山市建设工程质量监督检测站,河北唐山063000 [2]唐山市阳光混凝土搅拌有限公司,河北唐山063000 [3]河北理工大学材料学院,河北省无机非金属材料重点实验室,河北唐山063009

出　　处：《工程质量》2009年第6期62-65,共4页Construction Quality

摘　　要：研究了铁尾矿砂、石的化学成分和矿物组成,并比较了其与常规骨料的级配差别。在此基础上用铁尾矿砂代替天然砂,铁尾矿石代替普通碎石配制混凝土,并在和易性和强度上与普通混凝土进行对比,通过掺加活性掺合料进行配比优化。研究发现,用铁尾矿石和铁尾矿砂分别作粗细骨料,在和易性和强度上可以满足高强泵送混凝土的要求。chemical component and mineral compose of sand and stone of iron ore gangue was researched. Compared the difference of mixed grade between iron ore gangue and common aggregate. Iron ore gangue sand and stone is used in concrete instead of nature sand and detritus. Compared the working property and strengthen of it with that of common concrete. Optimizing the ratio of different active mixtures, When the iron ore gangue sand and stone is used as coarse and fine aggregate, the Working property and strength of mixture is satisfied with the demand of pump concrete.

关 键 词：混凝土 铁尾矿砂 和易性 强度 

分 类 号：TU521.1[建筑科学—建筑技术科学] TU528.1