我国水利水电工程混凝土骨料生产技术的发展

Development of concrete aggregate production technology in water and hydropower project construction in China

我国混凝土骨料生产的发展历程大约有半个世纪,通过对当前我国混凝土骨料生产的评述,提出了六个重要问题:1.料源选择与勘探精度,2.关于生产性试验和小型试验问题,3.破碎制砂的工艺及设备选型问题,4.石粉回收和污水处理,5.物料的水平和垂直运输,6.砂石系统招标的模式与管理方式。

Concrete aggregate production expreriences a development period of mearly half a century in China. Six major issues are pointed out after evaluating the presend production of concrete aggregate;selection of material source and accuracy of reconnaissance; productive experiment and small-scale experiment;crusher-run sand production technique and equipment selection; silt gravel coolection and sewage treatment;vertical and horizontal movement of materials;bidding process of sand and rock system and its management method.