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Sprayed concrete with high doping amount of iron tailing sand and iron tailing powder and preparation method of sprayed concrete
The invention discloses sprayed concrete with high doping amount of iron tailing sand and iron tailing powder and a preparation method of the sprayed concrete. The sprayed concrete comprises the following components in parts by weight: 450-500 parts of a cementing material, 800-850 parts of gravel, 800-850 parts of sand, 4-10 parts of a water reducing agent and 28-30 parts of an accelerator, the sand is composed of iron tailing sand and natural sand, and the iron tailing sand accounts for 20-30% of the weight of the sand; the cementing material is composed of cement and iron tailing powder, and the iron tailing powder accounts for 0-20% of the weight of the cementing material. The sprayed concrete has excellent compactness, strength and adhesion, the rebound rate is greatly reduced, the material cost is reduced, and the problem of environmental pollution caused by iron tailing sand is solved.
本发明公开了高掺量铁尾矿砂与铁尾矿粉的喷射混凝土及其制备方法，喷射混凝土的各组分重量份为：胶凝材料450‑500份、碎石800‑850份、砂800‑850份、减水剂4‑10份和速凝剂28‑30份；所述砂由铁尾矿砂和天然砂组成，铁尾矿砂占砂重量的20‑30％；所述胶凝材料由水泥和铁尾矿粉组成，铁尾矿粉占胶凝材料重量的0‑20％。喷射混凝土具有优异的密实性、强度及粘附性，回弹率大幅度降低，降低材料成本，并解决了铁尾矿砂环境污染问题。
Sprayed concrete with high doping amount of iron tailing sand and iron tailing powder and preparation method of sprayed concrete
The invention discloses sprayed concrete with high doping amount of iron tailing sand and iron tailing powder and a preparation method of the sprayed concrete. The sprayed concrete comprises the following components in parts by weight: 450-500 parts of a cementing material, 800-850 parts of gravel, 800-850 parts of sand, 4-10 parts of a water reducing agent and 28-30 parts of an accelerator, the sand is composed of iron tailing sand and natural sand, and the iron tailing sand accounts for 20-30% of the weight of the sand; the cementing material is composed of cement and iron tailing powder, and the iron tailing powder accounts for 0-20% of the weight of the cementing material. The sprayed concrete has excellent compactness, strength and adhesion, the rebound rate is greatly reduced, the material cost is reduced, and the problem of environmental pollution caused by iron tailing sand is solved.
本发明公开了高掺量铁尾矿砂与铁尾矿粉的喷射混凝土及其制备方法，喷射混凝土的各组分重量份为：胶凝材料450‑500份、碎石800‑850份、砂800‑850份、减水剂4‑10份和速凝剂28‑30份；所述砂由铁尾矿砂和天然砂组成，铁尾矿砂占砂重量的20‑30％；所述胶凝材料由水泥和铁尾矿粉组成，铁尾矿粉占胶凝材料重量的0‑20％。喷射混凝土具有优异的密实性、强度及粘附性，回弹率大幅度降低，降低材料成本，并解决了铁尾矿砂环境污染问题。
Sprayed concrete with high doping amount of iron tailing sand and iron tailing powder and preparation method of sprayed concrete
高掺量铁尾矿砂与铁尾矿粉的喷射混凝土及其制备方法
LI HAO (author) / LI ZEPENG (author) / WANG WEIJIE (author) / SONG YANG (author) / LI WAN (author) / LIANG KAIKUN (author) / YUAN RUI (author) / KOU BINGXIANG (author)
2024-10-15
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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