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Iron tailing super-fine sand concrete
The invention relates to iron tailing super-fine sand concrete and discloses concrete prepared by taking mixed sands consisting of iron tailing super-fine sand and machine-made sands as a fine aggregate, and belongs to the technical field of iron tailing sand building materials. The concrete is prepared from the following components in percentage by mass: 8-15% of cement, 21-34% of iron tailing mixed sands, 44-49% of gravels, 5-7% of an admixture, 7.2-8.3% of water and 1.6-2.2% of an efficient pumping agent for concrete based on the sum of mass of the cement and the admixture. The water-binder ratio of the prepared concrete is 0.75-0.36 and the strength grade is C20-C50. The iron tailing super-fine sand concrete provided by the invention can reduce the environmental pollution caused by iron tailings, reduce the exploitation quantity and exploitation energy consumption of natural sands and lower the production cost of the concrete, and has obvious economic and social benefits.
Iron tailing super-fine sand concrete
The invention relates to iron tailing super-fine sand concrete and discloses concrete prepared by taking mixed sands consisting of iron tailing super-fine sand and machine-made sands as a fine aggregate, and belongs to the technical field of iron tailing sand building materials. The concrete is prepared from the following components in percentage by mass: 8-15% of cement, 21-34% of iron tailing mixed sands, 44-49% of gravels, 5-7% of an admixture, 7.2-8.3% of water and 1.6-2.2% of an efficient pumping agent for concrete based on the sum of mass of the cement and the admixture. The water-binder ratio of the prepared concrete is 0.75-0.36 and the strength grade is C20-C50. The iron tailing super-fine sand concrete provided by the invention can reduce the environmental pollution caused by iron tailings, reduce the exploitation quantity and exploitation energy consumption of natural sands and lower the production cost of the concrete, and has obvious economic and social benefits.
Iron tailing super-fine sand concrete
HE ZHAOFANG (author) / WANG HONG (author)
2015-07-01
Patent
Electronic Resource
English
IPC:
C04B
Kalk
,
LIME
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