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Environment-friendly quartz mine tailing mud white ultra-high performance concrete material and preparation method thereof
The invention discloses an environment-friendly quartz mine tailing mud white ultra-high performance concrete material and a preparation method thereof. The environment-friendly quartz mine tailing mud white ultra-high performance concrete material comprises the following components by mass: 14-31 parts of white cement, 2.1-23 parts of limestone powder, 2-11 parts of white silica fume, 2-11 parts of metakaolin, 3-14.6 parts of steel fibers, 0.42-0.84 parts of a polycarboxylate superplasticizer, 33-50 parts of quartz mine tailing mud, and the balance of water, wherein the water-binder ratio is 0.15-0.2. The compressive strength of the environment-friendly quartz mine tailing mud white ultra-high performance concrete is larger than or equal to 120 MPa, the breaking strength is larger than or equal to 20 MPa, the whiteness is larger than or equal to 50, and the concrete has good mechanical performance and decoration performance. Meanwhile, dust-silica fume generated in the process of smelting silicon iron or silicon steel, dust-limestone powder generated in the process of crushing limestone and the quartz tailing mud are adopted as raw materials of the environment-friendly quartz mine tailing mud white ultra-high-performance concrete, waste is turned into wealth, resources are reasonably utilized, and the environment-friendly quartz mine tailing mud white ultra-high-performance concrete is of great significance to the environmental protection cause.
本发明公开了一种环保型石英矿尾泥白色超高性能混凝土材料及其制备方法，各组分按照质量百分比为：白水泥14份‑31份、石灰石粉2.1‑23份、白硅灰2‑11份、偏高岭土2‑11份、钢纤维3‑14.6份、聚羧酸减水剂0.42‑0.84份、石英矿尾泥33‑50份，余量为水，且水胶比为0.15‑0.2。本发明制造的环保型石英矿尾泥白色超高性能混凝土的抗压强度≥120Mpa，抗折强度≥20MPa,白度≥50，具有较好的力学性能、装饰性能。同时采用来自冶炼硅铁或硅钢时产生的粉尘‑硅灰、采用破碎石灰石产生的的粉尘‑石灰石粉、采用石英矿尾泥为环保石英矿尾泥白色超高性能混凝土原材料，变废为宝，合理利用资源，对环保事业具有非常重要的意义。
Environment-friendly quartz mine tailing mud white ultra-high performance concrete material and preparation method thereof
The invention discloses an environment-friendly quartz mine tailing mud white ultra-high performance concrete material and a preparation method thereof. The environment-friendly quartz mine tailing mud white ultra-high performance concrete material comprises the following components by mass: 14-31 parts of white cement, 2.1-23 parts of limestone powder, 2-11 parts of white silica fume, 2-11 parts of metakaolin, 3-14.6 parts of steel fibers, 0.42-0.84 parts of a polycarboxylate superplasticizer, 33-50 parts of quartz mine tailing mud, and the balance of water, wherein the water-binder ratio is 0.15-0.2. The compressive strength of the environment-friendly quartz mine tailing mud white ultra-high performance concrete is larger than or equal to 120 MPa, the breaking strength is larger than or equal to 20 MPa, the whiteness is larger than or equal to 50, and the concrete has good mechanical performance and decoration performance. Meanwhile, dust-silica fume generated in the process of smelting silicon iron or silicon steel, dust-limestone powder generated in the process of crushing limestone and the quartz tailing mud are adopted as raw materials of the environment-friendly quartz mine tailing mud white ultra-high-performance concrete, waste is turned into wealth, resources are reasonably utilized, and the environment-friendly quartz mine tailing mud white ultra-high-performance concrete is of great significance to the environmental protection cause.
本发明公开了一种环保型石英矿尾泥白色超高性能混凝土材料及其制备方法，各组分按照质量百分比为：白水泥14份‑31份、石灰石粉2.1‑23份、白硅灰2‑11份、偏高岭土2‑11份、钢纤维3‑14.6份、聚羧酸减水剂0.42‑0.84份、石英矿尾泥33‑50份，余量为水，且水胶比为0.15‑0.2。本发明制造的环保型石英矿尾泥白色超高性能混凝土的抗压强度≥120Mpa，抗折强度≥20MPa,白度≥50，具有较好的力学性能、装饰性能。同时采用来自冶炼硅铁或硅钢时产生的粉尘‑硅灰、采用破碎石灰石产生的的粉尘‑石灰石粉、采用石英矿尾泥为环保石英矿尾泥白色超高性能混凝土原材料，变废为宝，合理利用资源，对环保事业具有非常重要的意义。
Environment-friendly quartz mine tailing mud white ultra-high performance concrete material and preparation method thereof
环保型石英矿尾泥白色超高性能混凝土材料及其制备方法
MA RUI (author) / ZHANG WEI (author) / SUN DAOSHENG (author) / WANG AIGUO (author) / ZHANG GAOZHAN (author) / LIU KAIWEI (author) / GUAN YANMEI (author)
2021-07-16
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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