Bituminous mixture for high-environment-protection road and construction method of bituminous mixture

Abstract

The invention relates to a bituminous mixture for a high-environment-protection road and a construction method of the bituminous mixture. The bituminous mixture is prepared from the following raw materials in parts by weight: 75 to 79 parts of aggregates, 7 to 9 parts of bitumen, 4 to 6 parts of bitumen modifier, 6 to 8 parts of anti-aging agent, 4 to 6 parts of mineral powder, 3 to 7 parts of combination fibers, 0.5 to 0.9 part of stabilizer and 0.5 to 0.9 part of auxiliaries. A large-scale application direction for coal gangue, cast waste sand, nickel slag and waste polyvinyl chloride plastic bottles is found out, wastes are turned into wealth, environmental pollution and land occupation of solidified wastes are reduced, resources are further utilized, and the bituminous mixture is energy-saving and environmentally friendly. A road surface paved by the bituminous mixture is good in ageing-resistant performance, good in weather fastness, good in wear resistance, good in heat resistance, not easy to fatigue or crack and good in rutting resistance, the production cost of the bituminous mixture is low, and the aggregates cannot be scattered easily in a production process.

Description

technical field [0001] The invention relates to the technical field of road construction, in particular to an asphalt mixture for high-environmental protection roads and a construction method thereof. Background technique [0002] Solidified waste, such as coal gangue, foundry waste sand, nickel slag, waste plastic bottles, etc., the government invests a lot of money every year in deep burial and incineration. Deep burial is not only a serious waste of precious land resources, but also a large amount of accumulation will produce carbon monoxide, which is serious When a huge explosion occurs. The sulfide produced by incineration will destroy ozone when it enters the atmosphere, and the smoke produced will cause environmental pollution such as smog. Therefore, the utilization of industrial waste has very important practical significance and value. [0003] Currently, many solidified wastes are used in asphalt mixtures for roads. However, due to improper material selection ra...

AI Technical Summary

Problems solved by technology

However, due to improper material selection ratio, improper preparation method and other factors, the pavement paved with asphalt mixture added with solidified waste has poor aging resistance, poor weather resistance, poor wear resistance, poor heat resistance, easy fatigue cracking and anti-rutting performance Difference

And due to the immature technical means, it leads to problems such as high production cost and scattering of aggregates.