Dust-suppression and haze-reduction asphalt and preparation method thereof

Abstract

The invention discloses dust-suppression and haze-reduction asphalt. The dust-suppression and haze-reduction asphalt is a composite material and comprises matrix asphalt and a dust-suppression and haze-reduction asphalt modifier, wherein the dust-suppression and haze-reduction asphalt modifier comprises a dust-suppression component and an anti-stripping component, the dust-suppression component comprises one or more of calcium chloride, ferric chloride, aluminium chloride, calcium oxalate and potassium oxalate, and the anti-stripping component comprises one or more of calcium lignosulphonate, sodium lignosulphonate and petroleum resin. The invention further discloses a preparation method of the dust-suppression and haze-reduction asphalt. The method comprises steps as follows: the matrix asphalt is heated to the mixing temperature; the dust-suppression and haze-reduction asphalt modifier is added to the matrix asphalt for mixing; a mixture of the mixed matrix asphalt and the dust-suppression and haze-reduction asphalt modifier is placed in an oven for development. The dust-suppression and haze-reduction asphalt has water absorption and moisture retention performance, the preparation method is simple, the production cost is low, the prepared dust-suppression and haze-reduction asphalt has dust suppression and haze reduction effects, and other properties of the asphalt are not affected.

Description

technical field [0001] The invention belongs to the technical field of asphalt roads and environmental engineering, and relates to asphalt and a preparation method thereof, in particular to a dust-suppressing and haze-reducing asphalt and a preparation method thereof. Background technique [0002] In recent years, fog and haze have occurred frequently in my country's Beijing-Tianjin-Hebei region and North China. Many cities will encounter large-scale persistent fog and haze in autumn and winter, which will seriously affect people's normal travel and daily life. The problem of air pollution has attracted widespread attention at home and abroad. Studies have shown that some harmful and toxic substances in the atmosphere can cause irreversible damage to human physiological functions and seriously affect people's physical and mental health. Therefore, it is necessary to control smog to protect the environment. imminent. In some large urban environments, motor vehicle exhaust em...

AI Technical Summary

Problems solved by technology

[0007] In order to solve the problems existing in the prior art, the present invention provides a dust-suppressing and haze-reducing asphalt, the purpose of which is to solve the existing haze problem and reduce unnecessary waste of water resources. Add it directly to the base asphalt to form dust-suppressing and haze-reducing asphalt, and then use the dust-suppressing and haze-reducing asphalt as a cement to pave the road, so that the road can absorb moisture in the air, increase the dust density on the road surface, and make the road The dust on the surface is not easy to be taken away by passing vehicles, so as to achieve the purpose of dust suppression and haze reduction