Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Cement-stabilized iron tailing pavement semi-rigid base
The invention discloses a cement-stabilized iron tailing pavement semi-rigid base and relates to a preparation method of a building material. The cement-stabilized iron tailing pavement semi-rigid base comprises 4-6% of ordinary Portland cement, 41-43% of coarse-grained iron tailing waste rock, 22-24% of fine-grained iron tailing waste rock and 34-36% of iron tailing sand, and the iron tailing waste rock and the ore sand are both waste after mineral separation and are main components of industrial solid waste. The cement-stabilized iron tailing pavement base disclosed by the invention has the advantages of small shrinkage, reduced gaps among particles and high compressive strength under grading design, the 7d compressive strength can reach 4-6MPa, and the cement-stabilized iron tailing pavement base meets the heavy traffic requirements of cement-stabilized highways and first-grade highways. And moreover, industrial wastes can be consumed, accumulation of iron tailings is reduced, the environment is protected, and recycling of the industrial wastes is promoted.
本发明公开了一种水泥稳定铁尾矿路面半刚性基层，涉及一种建筑材料的制备方法。水泥稳定铁尾矿路面半刚性基层包括4‑6%普通硅酸盐水泥、41‑43%粗粒铁尾矿废石、22‑24%细粒铁尾矿废石、34‑36%铁尾矿砂，其中铁尾矿废石及矿砂均为选矿后的废弃物，是工业固体废弃物的主要组成部分。本发明公开的水泥稳定铁尾矿路面基层是在级配设计下，具有收缩量小、颗粒间空隙减小、抗压强度高的优点，7d抗压强度能达到4‑6MPa，满足水泥稳定类高速公路、一级公路重交通要求。并且本发明能消耗工业废弃物，减少铁尾矿的堆积，保护环境，促进工业废弃物资源化。
Cement-stabilized iron tailing pavement semi-rigid base
The invention discloses a cement-stabilized iron tailing pavement semi-rigid base and relates to a preparation method of a building material. The cement-stabilized iron tailing pavement semi-rigid base comprises 4-6% of ordinary Portland cement, 41-43% of coarse-grained iron tailing waste rock, 22-24% of fine-grained iron tailing waste rock and 34-36% of iron tailing sand, and the iron tailing waste rock and the ore sand are both waste after mineral separation and are main components of industrial solid waste. The cement-stabilized iron tailing pavement base disclosed by the invention has the advantages of small shrinkage, reduced gaps among particles and high compressive strength under grading design, the 7d compressive strength can reach 4-6MPa, and the cement-stabilized iron tailing pavement base meets the heavy traffic requirements of cement-stabilized highways and first-grade highways. And moreover, industrial wastes can be consumed, accumulation of iron tailings is reduced, the environment is protected, and recycling of the industrial wastes is promoted.
本发明公开了一种水泥稳定铁尾矿路面半刚性基层，涉及一种建筑材料的制备方法。水泥稳定铁尾矿路面半刚性基层包括4‑6%普通硅酸盐水泥、41‑43%粗粒铁尾矿废石、22‑24%细粒铁尾矿废石、34‑36%铁尾矿砂，其中铁尾矿废石及矿砂均为选矿后的废弃物，是工业固体废弃物的主要组成部分。本发明公开的水泥稳定铁尾矿路面基层是在级配设计下，具有收缩量小、颗粒间空隙减小、抗压强度高的优点，7d抗压强度能达到4‑6MPa，满足水泥稳定类高速公路、一级公路重交通要求。并且本发明能消耗工业废弃物，减少铁尾矿的堆积，保护环境，促进工业废弃物资源化。
Cement-stabilized iron tailing pavement semi-rigid base
一种水泥稳定铁尾矿路面半刚性基层
YANG DAOKUI (Autor:in) / ZHANG YANNIAN (Autor:in)
08.04.2022
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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