迁安尾矿砂作建筑用砂、磁滑轮碎石作建筑用石完全符合建筑用砂石的国家标准规定 ,社会效益、环境效益明显 ,符合可持续发展战略 ,且经济效益显著 ,前景十分广阔。该应用研究项目是由北京建工学院与首钢矿业公司合作完成的。首钢矿业公司位于河北迁安 ,是全国四大铁矿之一。目? Qian’an tailings sand for construction sand, magnetic sheave stone for construction purposes in full compliance with the national standards for construction sand, social benefits, environmental benefits, in line with the strategy of sustainable development and significant economic benefits, the prospects are very broad. The applied research project was completed by Beijing Institute of Construction and Shougang Mining. Shougang Mining Company is located in Qian’an, Hebei Province, is one of the four major iron ore. Head