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A platform for research: civil engineering, architecture and urbanism
Mineral admixture for high-performance green concrete and preparation method of mineral admixture
The mineral admixture for the high-performance green concrete comprises a waste residue component, a grinding aid and lignin, and the waste residue component comprises, by mass, 40-90% of lithium slag and 10-50% of blast furnace slag; the grinding aid accounts for 0.4-0.6 per mill of the total amount of the waste residue components; the lignin accounts for 0.1-0.3% of the total amount of the waste residue components. Preferably, the waste residue component further comprises steel slag or fly ash (grade II); when the waste residue component comprises the steel slag, the steel slag does not exceed 20% of the total amount of the waste residue component in percentage by mass; when the waste residue component comprises the fly ash, the fly ash does not exceed 30% of the total amount of the waste residue component in percentage by mass. According to the invention, solid wastes are fully utilized to process and produce the admixture, all the components complement each other, and the produced admixture has better performance, can reach the detection standard of high-quality mineral powder, and also can reach the performance close to or even exceeding the performance of cement; the activity index is higher, more cement can be replaced, and energy consumption and carbon emission are reduced.
提供了一种高性能绿色混凝土用矿物掺合料，包括废渣组分、助磨剂和木质素，废渣组分包括按质量百分比计40～90％的锂矿渣和10～50％的高炉矿渣；助磨剂占所述废渣组分总量的0.4～0.6‰；木质素占所述废渣组分总量的1～3‰。优选所述废渣组分还包括钢渣或粉煤灰(Ⅱ级)：当包括钢渣时，钢渣按质量百分比计不超过废渣组分总量的20％；当包括粉煤灰时：粉煤灰按质量百分比计不超过废渣组分总量的30％。本发明充分利用固体废弃物来加工生产掺合料，各组分相互补充，生产出来的掺合料的性能更好，可以达到优质矿粉的检测标准，也可以达到接近水泥甚至超过水泥的性能；活性指数更高，可以代替更多的水泥，降低能耗和碳排放。
Mineral admixture for high-performance green concrete and preparation method of mineral admixture
The mineral admixture for the high-performance green concrete comprises a waste residue component, a grinding aid and lignin, and the waste residue component comprises, by mass, 40-90% of lithium slag and 10-50% of blast furnace slag; the grinding aid accounts for 0.4-0.6 per mill of the total amount of the waste residue components; the lignin accounts for 0.1-0.3% of the total amount of the waste residue components. Preferably, the waste residue component further comprises steel slag or fly ash (grade II); when the waste residue component comprises the steel slag, the steel slag does not exceed 20% of the total amount of the waste residue component in percentage by mass; when the waste residue component comprises the fly ash, the fly ash does not exceed 30% of the total amount of the waste residue component in percentage by mass. According to the invention, solid wastes are fully utilized to process and produce the admixture, all the components complement each other, and the produced admixture has better performance, can reach the detection standard of high-quality mineral powder, and also can reach the performance close to or even exceeding the performance of cement; the activity index is higher, more cement can be replaced, and energy consumption and carbon emission are reduced.
提供了一种高性能绿色混凝土用矿物掺合料，包括废渣组分、助磨剂和木质素，废渣组分包括按质量百分比计40～90％的锂矿渣和10～50％的高炉矿渣；助磨剂占所述废渣组分总量的0.4～0.6‰；木质素占所述废渣组分总量的1～3‰。优选所述废渣组分还包括钢渣或粉煤灰(Ⅱ级)：当包括钢渣时，钢渣按质量百分比计不超过废渣组分总量的20％；当包括粉煤灰时：粉煤灰按质量百分比计不超过废渣组分总量的30％。本发明充分利用固体废弃物来加工生产掺合料，各组分相互补充，生产出来的掺合料的性能更好，可以达到优质矿粉的检测标准，也可以达到接近水泥甚至超过水泥的性能；活性指数更高，可以代替更多的水泥，降低能耗和碳排放。
Mineral admixture for high-performance green concrete and preparation method of mineral admixture
一种高性能绿色混凝土用矿物掺合料及其制备方法
DAI ZHIHU (author) / OUYANG JIAN (author)
2023-04-25
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
| European Patent Office | 2024
Mineral admixture, preparation method of mineral admixture and concrete
| European Patent Office | 2023