CAJ | 학술논문

本文通过调整铁尾矿的含量和级配, 对路用水泥混凝土的配合比进行优化设计, 寻找既达到路用水泥混凝土力学要求又节约经济成本的合理化设计方案. 在同等养护条件下, 通过加入不同比例、不同粒径大小的尾矿颗粒对等取代天然砂的量与一般混凝土力学性能进行对比表明: 铁尾矿的添加不应过多或过少; 针对本试验的混凝土试件而言, 当粒径为0.15—0.3mm的铁尾矿含量约为50%时, 添加铁尾矿的水泥混凝土试验样本具有最优的抗压强度, 且满足路用性能要求.
본문통과조정철미광적함량화급배, 대로용수니혼응토적배합비진행우화설계, 심조기체도로용수니혼응토역학요구우절약경제성본적합이화설계방안. 재동등양호조건하, 통과가입불동비례、불동립경대소적미광과립대등취대천연사적량여일반혼응토역학성능진행대비표명: 철미광적첨가불응과다혹과소; 침대본시험적혼응토시건이언, 당립경위0.15—0.3mm적철미광함량약위50%시, 첨가철미광적수니혼응토시험양본구유최우적항압강도, 차만족로용성능요구.
In order to finding the cost saving plan for cement concrete of road performance, the optimum design of cement concrete mixture ratio has done, by adjusting the content of iron tailings and the graduation of iron tailings. In the same curing condition, the experimental study indicated that the compressive strength of concrete has a corresponding increase when the iron tailings instead of 50% sand with which the granule of iron tailing in the range from 0.15 to 0.3 which could meet the requirements of road performance.