Iron tailing sand doped high-strength concrete, and preparation and applications thereof

A high-strength iron tailings sand technology, applied in the field of concrete, can solve the problems of low utilization rate and large tailings stockpile, and achieve the effects of improving strength, protecting the ecological environment, and saving sand and gravel resources

Inactive Publication Date: 2017-11-28
HEBEI INSTITUTE OF ARCHITECTURE AND CIVIL ENGINEERING
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  • Application Information

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Problems solved by technology

[0004] In order to solve the above technical problems, the present invention provides high-strength concrete mixed with iron tailings sand, which can adjust the structure of the concrete itself by adding ir

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  • Iron tailing sand doped high-strength concrete, and preparation and applications thereof
  • Iron tailing sand doped high-strength concrete, and preparation and applications thereof

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[0024] The present invention proposes high-strength concrete mixed with iron tailings and its preparation and application. The strength of the concrete is above C80, and the main raw material is iron tailings to solve the problem that my country’s current large tailings inventory and low utilization value affect cities and surrounding areas. Environmental issues.

[0025] The invention proposes a high-strength concrete mixed with iron tailings and its preparation, which can not only alleviate the problem of large tailings stock and low utilization value in my country, but also adjust the structure of concrete itself by adding iron tailings to the concrete , Improve the compressive and seepage resistance of concrete, but also reduce the amount of river sand excavation.

[0026] A high-strength concrete mixed with iron tailings. The dosage of each component per cubic meter of the concrete is as follows:

[0027] Cement 285kg-291kg (the cement is ordinary Portland P·O42.5 cement or Portl...

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Abstract

The invention discloses an iron tailing sand doped high-strength concrete, and preparation and applications thereof. The iron tailing sand doped high-strength concrete comprises 285 to 291kg of cement, 89 to 91kg of fly ash, 178 to 182kg of mineral slag, 41.5 to 42.4kg of silicon ash, 1149 to 1173kg of cobblestone, 403 to 412kg of iron tailing sand, 154 to 169kg of water, and 8.9 to 9.1kg of a water reducer. The preparation method is simple; iron tailing sand is a mining site discharged waste, and is recycled directly after sieving; waste is changed into valuables via adjusting concrete self structure; requirements on green construction by the states are satisfied; problems such as large iron tailing sand accumulation amount and low utilization rate are solved; the municipal environment and the surrounding environment are improved at the same time; the iron tailing sand doped high-strength concrete can be applied in infrastructure construction, urbanization, and shantytowns transformation.

Description

technical field [0001] The invention relates to the technical field of concrete, in particular to high-strength concrete mixed with iron tailing sand and its preparation and application. Background technique [0002] Tailings are the waste after mineral processing and are the main component of industrial solid waste. my country is rich in mineral resources, but the comprehensive utilization rate of tailings is low, the accumulation of iron tailings occupies a large amount of land resources, and the number of tailings ponds in my country is increasing. Tailings contain a lot of heavy metal ions, which seep into the ground and will seriously pollute rivers and groundwater resources. [0003] As we all know, the construction industry is an industry that consumes a lot of energy, and concrete is an indispensable protagonist in the construction industry. For a long time, the construction method has been to add river sand to concrete, and the amount of river sand is very limited....

Claims

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Application Information

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IPC IPC(8): C04B28/04
CPCC04B28/04C04B2111/00293C04B2201/50C04B2201/52C04B18/08C04B18/141C04B18/146C04B18/12C04B14/02C04B2103/302
Inventor 蔡焕琴李明宇麻建锁王丽楠李雪娜李瑞丰齐梦陈硕冯拴杨培然
Owner HEBEI INSTITUTE OF ARCHITECTURE AND CIVIL ENGINEERING
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