Method for controlling pavement dust pollution of transportation road in mining area

A road pavement, dust pollution technology, applied in the direction of roads, roads, on-site paved condensate pavement, etc., can solve the problems of low strength of asphalt pavement, complicated construction technology, short service life, etc., and achieve low cost and simple construction technology , good effect

Inactive Publication Date: 2013-04-03
BAOTOU STEEL GRP BARUN MINING CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the vehicles driving on the road in the mining area are mainly heavy vehicles, especially large vehicles with a tonnage of more than 200 tons, the strength of the asphalt pavement is low and the service life is very short
Cement concrete pavement has high strength, but the construction process is complicated, the joint distance is short, and the cost is high

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0017] The present invention will be further described below with specific embodiment:

[0018] Cement: composite 32.5 grade cement; tailings mud: water content less than 10%, flicking gravel: maximum particle size less than 40mm.

[0019] Mixing ratio: cement: tailings mud: tailing gravel = 12.5:25:62.5 (mass ratio), plus 10% water consumption.

[0020] Construction process

[0021] Lofting and bottom cleaning→ingredient mixing→transportation→paving→rolling→maintenance→open traffic

[0022] Construction process requirements

[0023] (1) Stake out and clear the bottom

[0024] Draw the sideline according to the designed paving width, clean up the floating soil and loose materials on the original road surface, scrape it flat, repair the potholes, and carry out proper rolling if necessary.

[0025] (2) Ingredients mixing

[0026] Mix the ingredients according to the mixing ratio determined by the test. Compulsory mixer is used for mixing. In order to ensure the accuracy of...

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PUM

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Abstract

The invention relates to a method for controlling pavement dust pollution of a transportation road in a mining area, and belongs to the field of roads. The method comprises the following steps of: preparing the following raw materials in percentage by weight: 10-15% of mixed material-doped 42.5-grade or 32.5-grade portland cement, 15-30% of tailings mud, 80-98% of tailings mud particles having granularity less than 0.08mm, 55-75% of drifted gravels having the maximum particle diameter less than 40mm and 8-12% of water; stirring; transporting; paving; rolling; maintaining; and opening to traffic when the pavement strength is detected to reach 15MPa. The used raw materials for controlling the pavement dust pollution of the transportation road in the mining area are locally obtained, are mainly solid wastes in a mining area and are low in cost. By using the method, the effect of controlling the pavement dust pollution of the transportation road in the mining area is good, a construction process is simple, dust can be thoroughly eliminated, and the traffic road condition of the transport road in the mining area can be improved.

Description

technical field [0001] The invention relates to a method for controlling road dust pollution on transport roads in mining areas, which belongs to the field of roads. Background technique [0002] At present, large-scale open-pit mines at home and abroad mostly use heavy-duty dump trucks for transportation. Generally, the transportation roads are not paved, but only properly leveled and compacted dirt roads. The flatness of the road surface is poor. Because there is no cementing material to make the road surface a whole, the dust on the road surface cannot be avoided. The road surface needs to be maintained frequently and sprinkled with water to suppress dust. Whenever a vehicle passes by, the dust concentration in the air can be as high as tens to hundreds of mg / m 3 , greatly exceeding the national health standards. The dust on the road not only pollutes the surrounding environment, damages the health of the staff, shortens the service life of the car, but also restricts t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/04E01C7/14C04B18/12
CPCY02W30/91
Inventor 崔凤周文郑建军赵俊梅
Owner BAOTOU STEEL GRP BARUN MINING CO LTD
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