重混凝土配合比设计研究  

The research on the mix design of heavy concrete

作　　者：平永杰 张全贵[2] 任铁钺[2] 

机构地区：[1]北京建筑材料检验中心有限公司,北京100041 [2]北京金隅混凝土有限公司,北京100041

出　　处：《中国包装科技博览（混凝土技术）》2013年第2期22-29,共8页China Science and Technology Review

摘　　要：探讨以体积法进行重集料混凝土的配合比设计，通过添加重集料，配制出容重达到4000kg／m3的混凝土。试验中采用特制的铁砂与铁球、钢段对混凝土中粗、细集料进行部分或全部替换，拌合物的粘聚性比普通混凝土有所增加，使重混凝土不产生骨料下沉。试验发现经改良过的配合比设计方法的适用范围不仅局限于重混凝土配合比设计，还可应用于其他混凝土的配合比设计。The method to re-aggregate volume of concrete mix design, by adding weight aggregates, the preparation of the bulk density of concrete to 4000kg/m3. Test using a special iron ore and iron balls, steel section of the concrete in the coarse and fine aggregates were partially or fully replace, cohesive mixture of plain concrete compared to the increase in the aggregate do not produce heavy concrete sink. Trial found an improved method of mix design had the scope is not limited to heavy concrete mix design, and also for other concrete mix design.

关 键 词：重混凝土 体积法配合比设计 重集料 

分 类 号：TU528.1[建筑科学—建筑技术科学]