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Coal gangue and steel slag pavement base mixture and preparation method thereof

A technology of pavement base and coal gangue, which is applied in the direction of sustainable waste treatment, solid waste management, climate sustainability, etc., can solve the problems of steel slag subgrade expansion and low strength of pavement base, and achieve improved strength, low cost and stability strong effect

Active Publication Date: 2022-05-31
中煤邯郸设计工程有限责任公司 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The present invention proposes a mixture of coal gangue and steel slag pavement base and its preparation method, which solves the problems of serious expansion of steel slag road base and low strength of pavement base in the related art

Method used

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  • Coal gangue and steel slag pavement base mixture and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] A coal gangue steel slag pavement base layer mixture is composed of the following components in parts by weight: 9 parts of steel slag, 8 parts of lime, 83 parts of coal gangue, and 11 parts of water;

[0026] In the steel slag, the proportion of steel slag is 10% within the range of particle size 0mm < particle size ≤ 0.3mm, the proportion of steel slag is 13% within the range of particle size 0.3mm < particle size ≤ 0.6mm, and the particle size is 0.6mm < particle size The proportion of steel slag within the range of ≤ 1.18mm is 22%, the proportion of steel slag within the range of particle size 1.18mm < particle size ≤ 2.36mm is 28%, and the proportion of steel slag within the range of particle size 2.36mm < particle size ≤ 4.75mm is 27% %,

[0027] The preparation method includes the following steps: weighing steel slag, lime and coal gangue according to the weight parts of each component in the above formula, and then putting the steel slag, lime, coal gangue and w...

Embodiment 2

[0029] A coal gangue steel slag pavement base layer mixture is composed of the following components by weight: 13 parts of steel slag, 12 parts of lime, 75 parts of coal gangue, and 9.3 parts of water;

[0030] In the steel slag, the proportion of steel slag is 10% within the range of particle size 0mm < particle size ≤ 0.3mm, the proportion of steel slag is 13% within the range of particle size 0.3mm < particle size ≤ 0.6mm, and the particle size is 0.6mm < particle size The proportion of steel slag within the range of ≤ 1.18mm is 22%, the proportion of steel slag within the range of particle size 1.18mm < particle size ≤ 2.36mm is 28%, and the proportion of steel slag within the range of particle size 2.36mm < particle size ≤ 4.75mm is 27% %,

[0031] The preparation method is the same as that in Example 1.

Embodiment 3

[0033] A coal gangue steel slag pavement base layer mixture is composed of the following components by weight: 18 parts of steel slag, 5 parts of lime, 77 parts of coal gangue, and 11.4 parts of water;

[0034] In the steel slag, the proportion of steel slag is 10% within the range of particle size 0mm < particle size ≤ 0.3mm, the proportion of steel slag is 13% within the range of particle size 0.3mm < particle size ≤ 0.6mm, and the particle size is 0.6mm < particle size The proportion of steel slag within the range of ≤1.18mm is 22%, the proportion of steel slag within the range of particle size of 1.18mm < particle size ≤ 2.36mm is 28%, and the proportion of steel slag within the range of particle size of 2.36mm < particle size ≤ 4.75mm is 27% %,

[0035] The preparation method is the same as that in Example 1.

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Abstract

The invention relates to the technical field of road base construction, and provides a coal gangue and steel slag pavement base mixture and a preparation method thereof.The coal gangue and steel slag pavement base mixture is prepared from, by weight, 8-29 parts of steel slag, 3-12 parts of lime and 64-85 parts of coal gangue, and the particle size of the steel slag is smaller than or equal to 4.75 mm. According to the technical scheme, the problems of serious expansion of the steel slag roadbed and low strength of the pavement base in the prior art are solved.

Description

technical field [0001] The invention relates to the technical field of road base construction, in particular to a coal gangue steel slag road base mixture and a preparation method thereof. Background technique [0002] With the development of national construction and the rapid development of highway engineering construction, the demand for pavement backfill structural materials is increasing. If such demand is obtained only by quarrying rocks, it will not only work intensively, but also require a lot of manpower and material resources, but also destroy the mountain and cause serious damage to the ecological environment. The use of industrial waste residues in highway projects not only greatly saves a lot of manpower and material resources required for quarrying mountains, but also turns waste into treasure, which is beneficial to environmental protection. [0003] Industrial waste slag includes steel slag, coal gangue, etc. Steel slag is the waste slag left after steel pr...

Claims

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Application Information

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IPC IPC(8): C04B28/12C04B18/14C04B18/12C04B111/76
CPCC04B28/12C04B18/142C04B18/12C04B2201/50C04B2111/00017C04B2111/0075C04B2111/76Y02W30/91
Inventor 陈凤阁张亚鹏宋金平霍志国孟文清石世孝崔邯龙王鹏杨红福郭秋硕吴航冀浩张凤娇曹佳伟
Owner 中煤邯郸设计工程有限责任公司
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