Coal gangue roadbed material and preparation method

A technology of roadbed materials and coal gangue, which is applied in the field of roadbed materials and preparation, can solve the problems of low utilization rate of coal gangue, pollute air and water sources, etc., and achieve the effect of low cost, good road surface quality, and simple and easy method

Inactive Publication Date: 2019-01-29
徐州金盛贸易有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the utilization rate of coal gangue is generally low, and many mined coal gangues are piled up around coal mines to form gangue hills, which not only occupy a large amount of land, but also pollute air and water sources, and even pose some safety hazards

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] A coal gangue roadbed material comprises the following components by weight: 50 parts of gangue block, 40 parts of coal gangue powder, 20 parts of sand, 10 parts of lime, 20 parts of portland cement, 25 parts of asphalt and 35 parts of water.

[0016] The preparation method of above-mentioned a kind of coal gangue subgrade material, comprises the following steps:

[0017] (1) coal gangue is sorted into coal gangue blocks with a particle size of 5-15 mm and coal gangue powder with a particle size of 0.02-0.5 mm;

[0018] (2) Get the coal gangue block and coal gangue powder in step 1, and add sand, Portland cement, water and mix them for 20 minutes;

[0019] (3) Stir for 20 minutes after adding lime;

[0020] (4) Heat to 50°C, add asphalt and stir for 30 minutes.

Embodiment 2

[0022] A coal gangue roadbed material comprises the following components by weight: 40 parts of gangue block, 30 parts of coal gangue powder, 30 parts of sand, 20 parts of lime, 30 parts of portland cement, 15 parts of asphalt and 45 parts of water.

[0023] The preparation method of above-mentioned a kind of coal gangue subgrade material, comprises the following steps:

[0024] (1) coal gangue is sorted into coal gangue blocks with a particle size of 5-15 mm and coal gangue powder with a particle size of 0.02-0.5 mm;

[0025] (2) Get the coal gangue block and coal gangue powder in step 1, and add sand, Portland cement, water and mix them for 30 minutes;

[0026] (3) Stir for 10 minutes after adding lime;

[0027] (4) Heat to 60°C, add asphalt and stir for 20 minutes.

Embodiment 3

[0029] A coal gangue roadbed material comprises the following components by weight: 45 parts of gangue block, 35 parts of coal gangue powder, 25 parts of sand, 15 parts of lime, 25 parts of portland cement, 20 parts of asphalt and 40 parts of water.

[0030] The preparation method of above-mentioned a kind of coal gangue subgrade material, comprises the following steps:

[0031] (1) coal gangue is sorted into coal gangue blocks with a particle size of 5-15 mm and coal gangue powder with a particle size of 0.02-0.5 mm;

[0032] (2) Get the coal gangue block and coal gangue powder in step 1, and add sand, Portland cement, water and mix them for 25 minutes;

[0033] (3) Stir for 15 minutes after adding lime;

[0034] (4) Heating to a temperature of 55°C, adding asphalt and stirring for 25 minutes.

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Abstract

The invention discloses a coal gangue roadbed material. The coal gangue roadbed material is prepared from the following ingredients in parts by weight: 40 to 50 parts of coal gangue, 30 to 40 parts ofcoal gangue powder, 20 to 30 parts of sand, 10 to 20 parts of lime, 20 to 30 parts of Portland cement, 15 to 25 parts of asphalt and 35 to 45 parts of water. The invention further discloses a preparation method for the coal gangue roadbed material. The method comprises the following steps: (1) sorting the coal gangue so as to obtain the coal gangue with the grain size of 5mm to 15mm and the coalgangue powder with the grain size of 0.02mm to 0.5mm; (2) weighing the coal gangue and the coal gangue powder obtained in the step (1), adding the sand, the Portland cement and the water, carrying outmixing, and then, carrying out stirring for 20 to 30 minutes; (3) adding the lime, and then, carrying out stirring for 10 to 20 minutes; and (4) heating the temperature of the mixture to 50 DEG C to60 DEG C, adding the asphalt, and carrying out stirring for 20 to 30 minutes, thereby obtaining the coal gangue roadbed material. According to the roadbed material disclosed by the invention, the problem of pollution caused by the coal gangue is effectively solved, wastes are recycled, the method is easy and feasible, and the roadbed material is low in cost and good in pavement quality.

Description

technical field [0001] The invention relates to a roadbed material and a preparation method, in particular to a coal gangue roadbed material and a preparation method. Background technique [0002] With the mining of coal mines, more and more coal gangue is also mined out. At present, the utilization rate of coal gangue is generally low, and many mined coal gangues are piled up around coal mines to form gangue hills, which not only occupy a large amount of land, but also pollute air and water sources, and even pose some safety hazards. Contents of the invention [0003] The object of the present invention is to provide a coal gangue roadbed material and a preparation method, which can make full use of coal gangue and turn waste into treasure. [0004] In order to achieve the above object, a coal gangue roadbed material used in the present invention comprises the following components by weight: 40-50 parts of coal gangue block, 30-40 parts of coal gangue powder, 20-30 parts...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/04
CPCC04B28/04C04B2111/0075C04B18/12C04B24/36C04B22/064C04B14/06
Inventor 王禹
Owner 徐州金盛贸易有限公司
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