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Coal gangue high-temperature-resistant concrete and preparation method thereof

A technology of coal gangue and high temperature resistance, applied in the field of concrete, can solve problems such as difficulty in meeting the performance requirements of high temperature resistant concrete, poor concrete high temperature resistance, etc., achieve good insulation effect, reduce thermal conductivity, and improve high temperature resistance.

Active Publication Date: 2020-10-02
陕西红旗汇石建筑制品有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In the above technical solution, since coal gangue has a certain carbon content, when it is directly used as the aggregate of concrete, the high temperature resistance of the prepared concrete will be poor, and it is difficult to meet the performance requirements of high temperature resistant concrete

Method used

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  • Coal gangue high-temperature-resistant concrete and preparation method thereof
  • Coal gangue high-temperature-resistant concrete and preparation method thereof
  • Coal gangue high-temperature-resistant concrete and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] Embodiment 1: a kind of coal gangue high-temperature-resistant concrete, each component of its raw material and corresponding parts by weight thereof are as shown in Table 1,

[0051] The preparation method of above-mentioned coal gangue high temperature resistant concrete comprises the following steps:

[0052] Step 1: Take each raw material according to the parts by weight of each raw material in Table 1;

[0053] Step 2: Mix the weighed mafic amphibole powder, cement, and water evenly to obtain a slurry, add the gangue powder balls to the slurry for soaking and stirring for 15 minutes, and then remove the soaked gangue powder balls to dry naturally ;

[0054] Step 3: adding the dried coal gangue powder balls, admixtures, and sand into a concrete mixer and mixing them evenly to obtain a mixture;

[0055] Step 4: Add the slurry and water reducer in Step 2 into the mixture and stir evenly to obtain coal gangue high temperature resistant concrete.

[0056] Wherein the...

Embodiment 2-3

[0066] Example 2-3: A coal gangue high temperature resistant concrete, the difference from Example 1 is that the components of its raw materials and their corresponding weight parts are shown in Table 1; the raw materials of coal gangue powder balls and their corresponding weights The number of copies is shown in Table 2.

Embodiment 4

[0067] Embodiment 4: A coal gangue high temperature resistant concrete, the difference from Embodiment 1 is that the admixture is waste clay brick powder.

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Abstract

The invention discloses coal gangue high-temperature-resistant concrete and a preparation method thereof, and relates to the field of concrete. Technical key points are that the coal gangue high-temperature-resistant concrete is characterized by comprising the following components in parts by weight: 1050-1112 kg / m<3> of coal gangue powder balls, 135-163 kg / m<3> of cummingtonite powder, 730-773 kg / m<3> of sand, 175-225 kg / m<3> of cement, 150-160 kg / m<3> of water, 79-100 kg / m<3> of an admixture and 6.3-9.5 kg / m<3> of a water reducing agent. Raw materials of the coal gangue powder balls comprisethe following components in parts by weight: 360-400 kg / m<3> of coal gangue powder, 80-100 kg / m<3> of cement, 50-70 kg / m<3> of water, 20-30 kg / m<3> of refractory fibers and 3-5 kg / m<3> of a water reducing agent. The coal gangue high-temperature-resistant concrete can be used in high-temperature-resistant building materials, and the high temperature resistance of the building materials is improved.

Description

technical field [0001] The invention relates to the field of concrete, more specifically, it relates to a coal gangue high temperature resistant concrete and a preparation method thereof. Background technique [0002] As a kind of industrial solid waste, coal gangue is a kind of rock with low carbon content associated with the coal seam during the coal formation process. Along with coal mining, it is piled up in large quantities to form many gangue hills, which leads to occupying storage space, heavy metals Pollution of rivers, air and dust pollution when spontaneous combustion occurs. There are many ways to solve gangue pollution, one of which is to prepare concrete from gangue. Generally, high-temperature-resistant concrete is a concrete prepared from appropriate cementitious materials, high-temperature-resistant aggregates, admixtures and water in a certain proportion. mechanical properties. [0003] In the application document with the publication number CN110002825A,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/04C04B18/02C04B20/10
CPCC04B28/04C04B18/021C04B20/1077C04B22/002C04B2103/302C04B18/08C04B14/06C04B14/04C04B18/16C04B18/12C04B14/4656C04B20/1074
Inventor 王艳
Owner 陕西红旗汇石建筑制品有限公司
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