A kind of bioactive granular pavement maintenance material and preparation method thereof

Abstract

The invention provides a bioactive-particle pavement maintenance material and a preparation method therefor. The pavement maintenance material is prepared from the ingredients in parts by weight: 100parts of mineral aggregates, 8-14 parts of basic asphalt, 3.5-8.5 parts of bioactive particles, 0.5-1.0 part of itaconic acid, 1-2 parts of couplant, 0.5-1.0 part of polyethylene glycol, 0.2-0.5 partof fatty alcohol-polyoxyethylene ether penetrant, 8-12 parts of water, 0.4-0.8 part of fibers, 1-3 parts of additives and 5-8 parts of filler, wherein the bioactive particles comprise one or more selected from coconut shell porous particles with the particle size of 20 to 50 meshes, fruit shell porous particles with the particle size of 20 to 50 meshes and bamboo charcoal porous particles with theparticle size of 20 to 50 meshes. Under the synergistic action of the ingredients, the pavement maintenance material has a good exhaust gas pollutant purification effect, has a good purification effect on NOx, COx and SO2 and can also be used for adsorbing and purifying PM 2.5 particulate pollutants.

Description

technical field [0001] The invention relates to the technical field of road materials, in particular to a biologically active granular road surface maintenance material and a preparation method thereof. Background technique [0002] In recent years, with the vigorous development of my country's highway engineering and automobile manufacturing industry, the number of cars in the country has increased year by year. As of 2017, the number of motor vehicles in the country exceeded 300 million for the first time, including 200 million cars. The rapid growth of car ownership has directly led to a sharp increase in vehicle exhaust emissions. Due to the incomplete combustion of gasoline, diesel and other fuels, the exhaust gas of automobiles contains CO x , NO x , SO 2 It also contains a large amount of dust particles such as PM2.5 and PM10, which has extremely adverse effects on human health and the natural environment, and directly leads to the deterioration of my country's cur...

AI Technical Summary

Problems solved by technology

[0003] At present, TiO is mainly used to solve the problem of automobile exhaust pollution. 2 Such as photocatalyst catalyst for tail gas purification, but the purification efficiency of this method is priority, the types of pollutant purification are limited, and there are a series of problems such as catalyst poisoning, lack of effective purification of existing pollutants, and cannot fundamentally alleviate and control the existing car exhaust pollution

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