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A platform for research: civil engineering, architecture and urbanism
Pervious concrete prepared from copper tailings
The invention discloses pervious concrete prepared from copper tailings. The pervious concrete is prepared from the following raw materials: copper tailings, cement, a water reducing agent and pebbles. The water-permeable concrete is prepared by using the copper tailings as an aggregate source of the water-permeable concrete, the copper tailings are used for replacing cement in equal mass, sulfate released by acidification of sulfides in the copper tailings is fully utilized to excite a large number of auxiliary materials such as fly ash in the cement, more hydration products are generated, and the bonding strength is improved; the economic value of the copper tailings is improved to the cement level, waste is turned into wealth, and harm is turned into treasure. Resource utilization of tailings becomes a consensus of all the society and is also a key direction of cyclic utilization of industrial solid waste resources in China at present. The pervious concrete is prepared from the copper tailings, so that urban economic, safety and environmental burdens can be greatly reduced, the national environmental protection policy requirements are met, and the application prospect is wide.
本发明公开了一种利用铜尾砂制备的透水混凝土，包括如下原料：铜尾砂、水泥、减水剂和石子。本发明使用铜尾砂作为透水混凝土的骨料来源，制备透水混凝土，本发明使用铜尾砂等质量替代水泥，充分利用铜尾砂中硫化物酸化释放的硫酸盐激发水泥中的粉煤灰等大量辅料，产生更多水化产物，提高胶结强度，将铜尾砂经济价值提升至水泥水平，变废为宝、变害为宝。尾矿的资源化利用已成为社会各界共识，也是当前我国工业固废资源循环利用的重点方向。利用铜尾砂制备透水混凝土，可以大幅减轻城市经济、安全与环境负担，符合国家环保政策要求，应用前景广阔。
Pervious concrete prepared from copper tailings
The invention discloses pervious concrete prepared from copper tailings. The pervious concrete is prepared from the following raw materials: copper tailings, cement, a water reducing agent and pebbles. The water-permeable concrete is prepared by using the copper tailings as an aggregate source of the water-permeable concrete, the copper tailings are used for replacing cement in equal mass, sulfate released by acidification of sulfides in the copper tailings is fully utilized to excite a large number of auxiliary materials such as fly ash in the cement, more hydration products are generated, and the bonding strength is improved; the economic value of the copper tailings is improved to the cement level, waste is turned into wealth, and harm is turned into treasure. Resource utilization of tailings becomes a consensus of all the society and is also a key direction of cyclic utilization of industrial solid waste resources in China at present. The pervious concrete is prepared from the copper tailings, so that urban economic, safety and environmental burdens can be greatly reduced, the national environmental protection policy requirements are met, and the application prospect is wide.
本发明公开了一种利用铜尾砂制备的透水混凝土，包括如下原料：铜尾砂、水泥、减水剂和石子。本发明使用铜尾砂作为透水混凝土的骨料来源，制备透水混凝土，本发明使用铜尾砂等质量替代水泥，充分利用铜尾砂中硫化物酸化释放的硫酸盐激发水泥中的粉煤灰等大量辅料，产生更多水化产物，提高胶结强度，将铜尾砂经济价值提升至水泥水平，变废为宝、变害为宝。尾矿的资源化利用已成为社会各界共识，也是当前我国工业固废资源循环利用的重点方向。利用铜尾砂制备透水混凝土，可以大幅减轻城市经济、安全与环境负担，符合国家环保政策要求，应用前景广阔。
Pervious concrete prepared from copper tailings
一种利用铜尾砂制备的透水混凝土
SHEN XIN (author) / CHEN PEIYUAN (author) / WANG YONGHUI (author) / WANG CHENG (author) / FANG HU (author) / ZHAO CHENG (author) / SUN SHIJIA (author)
2022-05-31
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
Pervious concrete for pervious pavement and preparation method of pervious concrete
| European Patent Office | 2021