摘要
研究了钼尾矿的粉磨特性。利用钼尾矿替代水泥制备胶凝材料,研究了尾矿掺量、尾矿粒度、水胶比对发泡水泥力学性能和干密度的影响。试验结果表明,钼尾矿的易磨性远优于矿渣;掺尾矿发泡水泥的适宜配合比为:水泥掺量90%,尾矿掺量10%,粉磨时间80min,水胶比0.52。此条件下制备的保温材料28d龄期时,抗压强度和干密度分别为0.47MPa和242kg/m3。
The grinding characteristics of molybdenum tailings arestudied. Cementitious materials is prepared by molybdenum tailings replaced cement, the influences of dosage of tailings, tailings particle size and water/cement ratio on mechanical properties of foam cement and dry density are researched. The experiment results indicate that, molybdenum grinding ability of molybdenum railings is better than slag. The suitable mixture of foam cement mixed tailings is 90% cement and 10% molybdenum railings, grinding time is 80 minutes, water/cement ratio is 0.52. Under this condition, compressive strength and dry density of foam cement in 28 days age is up to 0.47MPa and 242kg/m^3.
出处
《混凝土与水泥制品》
2016年第6期66-69,共4页
China Concrete and Cement Products
基金
陕西省自然科学基金项目(2014JM2055)
陕西省科技统筹创新工程项目(2012KTDZ02-02-01)
国家级大学生创新创业训练计划项目(201511396707)
关键词
钼尾矿
粉磨特性
胶凝材料
发泡水泥
Molybdenum railings
Grinding characteristics
Cementitious materials
Foam cement
