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High-silicon iron tailing multi-element solid waste activated concrete and preparation method thereof
The invention belongs to the field of solid waste recycling, and particularly relates to high-silicon iron tailing multi-element solid waste activated concrete and a preparation method thereof, and the concrete comprises the following raw materials: 360-380kg/m<3> of cement, 30-40kg/m<3>of fly ash, 30-40kg/m<3> of modified high-silicon ultrafine iron tailings, 930-950kg/m<3> of tailing waste stone, 870-930kg/m<3> of tailing fine sand, 160-170kg/m<3> of water, and 4-8kg/m<3> of an additive. The preparation method of the modified high-silicon ultrafine iron tailings comprises the following steps: screening high-silicon ultrafine iron tailings by a 200-mesh screen, mechanically activating by using an XQM-8 vertical planetary ball mill at the interval of forward and reverse rotation of 10-15 minutes and the rotating speed of 380-395r/min, operating for two hours, opening a tank, and cooling to room temperature. The concrete has the advantages of high total solid waste mixing amount, low cement consumption, ideal concrete impermeability and high later compressive strength.
本发明属于固废资源化领域，尤其涉及一种高硅型铁尾矿多元固废活化混凝土及其制备方法，混凝土的原料包括水泥360～380kg/m³、粉煤灰30～40kg/m³、改性高硅型极细铁尾砂30～40kg/m³、尾矿废石930～950kg/m³、尾矿细砂870～930kg/m³、水160～170kg/m³和外加剂4～8kg/m³。改性高硅型极细铁尾砂的制备方法如下：对高硅型极细铁尾砂进行200目筛网筛分，使用XQM‑8立式行星球磨机进行机械活化，球磨机正反转间隔10～15分钟，转速为380～395r/min，运行两小时后开罐冷却至室温。本发明固废总掺量高，水泥用量低，混凝土抗渗性能理想，后期抗压强度高。
High-silicon iron tailing multi-element solid waste activated concrete and preparation method thereof
The invention belongs to the field of solid waste recycling, and particularly relates to high-silicon iron tailing multi-element solid waste activated concrete and a preparation method thereof, and the concrete comprises the following raw materials: 360-380kg/m<3> of cement, 30-40kg/m<3>of fly ash, 30-40kg/m<3> of modified high-silicon ultrafine iron tailings, 930-950kg/m<3> of tailing waste stone, 870-930kg/m<3> of tailing fine sand, 160-170kg/m<3> of water, and 4-8kg/m<3> of an additive. The preparation method of the modified high-silicon ultrafine iron tailings comprises the following steps: screening high-silicon ultrafine iron tailings by a 200-mesh screen, mechanically activating by using an XQM-8 vertical planetary ball mill at the interval of forward and reverse rotation of 10-15 minutes and the rotating speed of 380-395r/min, operating for two hours, opening a tank, and cooling to room temperature. The concrete has the advantages of high total solid waste mixing amount, low cement consumption, ideal concrete impermeability and high later compressive strength.
本发明属于固废资源化领域，尤其涉及一种高硅型铁尾矿多元固废活化混凝土及其制备方法，混凝土的原料包括水泥360～380kg/m³、粉煤灰30～40kg/m³、改性高硅型极细铁尾砂30～40kg/m³、尾矿废石930～950kg/m³、尾矿细砂870～930kg/m³、水160～170kg/m³和外加剂4～8kg/m³。改性高硅型极细铁尾砂的制备方法如下：对高硅型极细铁尾砂进行200目筛网筛分，使用XQM‑8立式行星球磨机进行机械活化，球磨机正反转间隔10～15分钟，转速为380～395r/min，运行两小时后开罐冷却至室温。本发明固废总掺量高，水泥用量低，混凝土抗渗性能理想，后期抗压强度高。
High-silicon iron tailing multi-element solid waste activated concrete and preparation method thereof
高硅型铁尾矿多元固废活化混凝土及其制备方法
GU XIAOWEI (author) / ZHANG WEIFENG (author) / LI XIAOHUI (author)
2021-03-09
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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