Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Mine restoration ecological concrete based on phosphorite tailings as well as preparation method and application of mine restoration ecological concrete
The invention discloses mine restoration ecological concrete based on phosphorite tailings, the ecological concrete comprises the following components in parts by weight: 0.40-0.45 part of phosphogypsum and 2.0-2.2 parts of waste rock aggregate, and further comprises a composite special additive, and the composite additive comprises modified hydroxypropyl methyl cellulose ether, a gypsum protein retarder and redispersible rubber powder; the composite admixture is prepared from the following components in parts by weight: 65 to 68 parts of modified hydroxypropyl methyl cellulose ether, 18 to 20 parts of gypsum protein retarder and 14 to 16 parts of redispersible rubber powder; the mixing amount is 0.02%-0.04% of the mass of the ardealite and the waste rock aggregate; according to the mine restoration ecological concrete, phosphogypsum and barren rock in the phosphate tailings are fully utilized, and the problems that the construction performance is poor and the porosity is low after the phosphogypsum and barren rock aggregate are directly used for the ecological concrete are solved by adding the composite admixture; local materials are used, the phosphorite tailings are treated, and the ecological environment of a mine area is restored.
本发明公开了一种基于磷矿尾料的矿山修复生态砼，所述生态砼按重量份包括磷石膏0.40～0.45份和废石骨料2.0～2.2份，还包括复合专用外加剂，所述复合外加剂包含改性羟丙基甲基纤维素醚、石膏类蛋白缓凝剂和可再分散胶粉；复合外加剂按重量份计，含改性羟丙基甲基纤维素醚65～68份、石膏类蛋白缓凝剂18～20份和可再分散胶粉14～16份；其掺量为磷石膏和废石骨料质量的0.02％～0.04％；该矿山修复生态砼充分利用了磷尾矿中的磷石膏与废石，通过加入复合外加剂解决了磷石膏与废石骨料直接用于生态砼施工性能差，成型后孔隙率低的问题；就地取材，既处理了磷矿尾料又修复了矿山地区的生态环境。
Mine restoration ecological concrete based on phosphorite tailings as well as preparation method and application of mine restoration ecological concrete
The invention discloses mine restoration ecological concrete based on phosphorite tailings, the ecological concrete comprises the following components in parts by weight: 0.40-0.45 part of phosphogypsum and 2.0-2.2 parts of waste rock aggregate, and further comprises a composite special additive, and the composite additive comprises modified hydroxypropyl methyl cellulose ether, a gypsum protein retarder and redispersible rubber powder; the composite admixture is prepared from the following components in parts by weight: 65 to 68 parts of modified hydroxypropyl methyl cellulose ether, 18 to 20 parts of gypsum protein retarder and 14 to 16 parts of redispersible rubber powder; the mixing amount is 0.02%-0.04% of the mass of the ardealite and the waste rock aggregate; according to the mine restoration ecological concrete, phosphogypsum and barren rock in the phosphate tailings are fully utilized, and the problems that the construction performance is poor and the porosity is low after the phosphogypsum and barren rock aggregate are directly used for the ecological concrete are solved by adding the composite admixture; local materials are used, the phosphorite tailings are treated, and the ecological environment of a mine area is restored.
本发明公开了一种基于磷矿尾料的矿山修复生态砼，所述生态砼按重量份包括磷石膏0.40～0.45份和废石骨料2.0～2.2份，还包括复合专用外加剂，所述复合外加剂包含改性羟丙基甲基纤维素醚、石膏类蛋白缓凝剂和可再分散胶粉；复合外加剂按重量份计，含改性羟丙基甲基纤维素醚65～68份、石膏类蛋白缓凝剂18～20份和可再分散胶粉14～16份；其掺量为磷石膏和废石骨料质量的0.02％～0.04％；该矿山修复生态砼充分利用了磷尾矿中的磷石膏与废石，通过加入复合外加剂解决了磷石膏与废石骨料直接用于生态砼施工性能差，成型后孔隙率低的问题；就地取材，既处理了磷矿尾料又修复了矿山地区的生态环境。
Mine restoration ecological concrete based on phosphorite tailings as well as preparation method and application of mine restoration ecological concrete
一种基于磷矿尾料的矿山修复生态砼及其制备方法和应用
ZHANG KUN (Autor:in) / CAO MINGXING (Autor:in) / YIN WEI (Autor:in) / CHEN YA (Autor:in) / LING YING (Autor:in)
27.05.2022
Patent
Elektronische Ressource
Chinesisch
Ecological restoration treatment method for quarrying mine tailings
| Europäisches Patentamt | 2020
Mine ecological restoration system and ecological restoration method
| Europäisches Patentamt | 2021