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C60P12 subway concrete and preparation method thereof

A concrete and subway technology, applied in the field of concrete, can solve problems such as low utilization rate, shortage of resources, and limited resources.

Inactive Publication Date: 2019-04-02
成都宏基建材股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] In order to overcome the increasing shortage of traditional cement admixture resources such as slag, fly ash and silica fume, as well as the limited resource utilization and low utilization rate of sulfur-fixed ash, carbide slag and high-titanium slag, and to improve the subway Concrete durability, the invention provides a kind of C60P12 subway concrete and preparation method thereof

Method used

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  • C60P12 subway concrete and preparation method thereof
  • C60P12 subway concrete and preparation method thereof

Examples

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Effect test

Embodiment 1

[0053] A C60P12 subway concrete, consisting of the following materials: 279 parts of cement, 63 parts of mineral powder, 58 parts of fly ash, 83 parts of sulfur-fixed ash, 30 parts of silica fume, 17 parts of carbide slag, 1100 parts of coarse aggregate, fine bone 630 parts of material, 60 parts of lightweight fine aggregate, 4.5 parts of fiber, 1.5 parts of latex powder, 17 parts of expansion agent, 3.3 parts of water reducing agent, and 158 parts of water, in parts by weight.

[0054] A kind of preparation method of C60P12 subway concrete, concrete steps are as follows:

[0055] (1) Accurately weigh raw materials according to the above weight ratio, mix cement, mineral powder, fly ash, sulfur-fixed ash, silica fume, carbide slag, coarse aggregate, fine aggregate, lightweight fine aggregate, fiber, latex powder , The expansion agent is put into the concrete mixer;

[0056] (2) Then mix the water reducing agent with water to form a diluted solution containing the water reduci...

Embodiment 2

[0059] A C60P12 subway concrete, composed of the following materials: 291 parts of cement, 60 parts of mineral powder, 55 parts of fly ash, 80 parts of sulfur-fixed ash, 28 parts of silica fume, 16 parts of carbide slag, 1100 parts of coarse aggregate, fine bone 630 parts of material, 60 parts of lightweight fine aggregate, 4.5 parts of fiber, 1.5 parts of latex powder, 17 parts of expansion agent, 3.3 parts of water reducing agent, and 158 parts of water, in parts by weight.

[0060] A kind of preparation method of C60P12 subway concrete, concrete steps are as follows:

[0061] (1) Accurately weigh raw materials according to the above weight ratio, mix cement, mineral powder, fly ash, sulfur-fixed ash, silica fume, carbide slag, coarse aggregate, fine aggregate, lightweight fine aggregate, fiber, latex powder , The expansion agent is put into the concrete mixer;

[0062] (2) Then mix the water reducing agent with water to form a diluted solution containing the water reducing...

Embodiment 3

[0065] A C60P12 subway concrete, consisting of the following materials: 269 parts of cement, 65 parts of mineral powder, 60 parts of fly ash, 85 parts of sulfur-fixed ash, 33 parts of silica fume, 18 parts of carbide slag, 1100 parts of coarse aggregate, fine bone 630 parts of material, 60 parts of lightweight fine aggregate, 4.5 parts of fiber, 1.5 parts of latex powder, 17 parts of expansion agent, 3.3 parts of water reducing agent, and 158 parts of water, in parts by weight.

[0066] A kind of preparation method of C60P12 subway concrete, concrete steps are as follows:

[0067](1) Accurately weigh raw materials according to the above weight ratio, mix cement, mineral powder, fly ash, sulfur-fixed ash, silica fume, carbide slag, coarse aggregate, fine aggregate, lightweight fine aggregate, fiber, latex powder , The expansion agent is put into the concrete mixer;

[0068] (2) Then mix the water reducing agent with water to form a diluted solution containing the water reducin...

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Abstract

The invention belongs to the field of concrete, and particularly discloses C60P12 subway concrete and a preparation method thereof. The concrete is composed of the following materials in parts by weight: 250-310 parts of cement, 55-70 parts of mineral powder, 50-65 parts of fly ash, 75-90 parts of sulfur-fixing ash, 25-35 parts of silica fume, 15-20 parts of calcium carbide slag, 1000-1200 parts of coarse aggregate, 550-700 parts of fine aggregate, 40-80 parts of light fine aggregate, 3.5-5.5 parts of fibers, 1-2 parts of latex powder, 12-22 parts of an expanding agent, 2.5-4.5 parts of a water reducer and 150-170 parts of water. According to the invention, the sulfur-fixing ash and the carbide slag are used as a part of admixtures of the subway concrete, and high-titanium mineral slag isused as the light fine aggregate of the subway concrete, so that the prepared subway concrete has good slump and expansibility, 28d compressive strength is larger than 60 MPa, and the anti-permeability grade reaches P12. Therefore, overcoming of defects that conventional cement admixture resources such as mineral powder, fly ash, silica fume and the like are in shortage day by day, and recycling routes of industrial solid wastes such as sulfur-fixing ash, calcium carbide slag, high-titanium mineral slag and the like are limited is facilitated, and meanwhile, durability of the subway concrete is improved.

Description

technical field [0001] The invention belongs to the field of concrete, and specifically discloses a C60P12 subway concrete and a preparation method thereof. Background technique [0002] The service life of subway engineering is required to be no less than 100 years, and the durability of subway engineering has always been a major engineering issue that has attracted much attention. Subway concrete is a key factor affecting the life of subway projects. It can be said that the durability of subway concrete directly determines the life of subway projects. The subway concrete serves in the underground space, and its durability is affected by factors such as alkali-aggregate reaction, chloride ion corrosion, sulfate corrosion, carbonation, freeze-thaw cycles, stray current, and external force loads. Improving the durability of subway concrete is a A topic worthy of continued attention and research. [0003] Subway engineering is a complex system consisting of many different st...

Claims

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Application Information

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IPC IPC(8): C04B28/04
CPCC04B28/04C04B2201/50C04B18/142C04B18/08C04B18/062C04B18/146C04B18/0481C04B18/12C04B14/068C04B18/144C04B14/46C04B2103/0057C04B2103/0068C04B2103/302
Inventor 肖超
Owner 成都宏基建材股份有限公司