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

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...

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