High-temperature-resistant modified road asphalt

Abstract

The invention discloses high-temperature-resistant modified road asphalt. The high-temperature-resistant modified road asphalt comprises, by weight, 80-100 parts of matrix asphalt, 15-20 parts of fluoroether rubber, 10-15 parts of hydrogenated nitrile rubber, 8-10 parts of boron-silicon rubber, 5-8 parts of SBS (styrene-butadiene-styrene block copolymer) thermoplastic elastomers, 10-12 parts of furfural, 15-20 parts of composite resin, 2-5 parts of asbestos powder, 0.5-1 part of zinc oxide, 5-8 parts of dimethylbenzene, 2-4 parts of zinc naphthenate, 2-5 parts of barium petroleum sulfonate, 5-8 parts of kerosene, 0.5-0.8 part of lauroyl diethanolamine, 1-4 parts of silicon nitride, 0.1-0.2 part of chromium carbide, 1-2 parts of aluminized glass micro-spheres, 5-8 parts of calcium sulfate whisker powder, 5-8 parts of chlorinated paraffin and 2-5 parts of auxiliaries. The high-temperature-resistant modified road asphalt has the advantages of high-temperature resistance, aging resistance,fatigue resistance, high viscosity and crack resistance.

Description

technical field [0001] The invention relates to the technical field of civil engineering, in particular to a high-temperature-resistant modified road asphalt. Background technique [0002] Since the discovery of the advantages of asphalt pavement in dustproof, anti-vibration, anti-skid, noise reduction and durability, asphalt concrete pavement has been widely used all over the world, especially in my country, the paved area of ​​asphalt pavement has entered the top three in the world bit. [0003] With the development of large-scale road construction, the demand for road construction materials is increasing day by day, especially the supply and quality of asphalt materials, which has become the lifeblood restricting the development of high-grade roads. [0004] Ordinary asphalt can no longer meet the needs of high-grade heavy-duty pavements. Under high temperature and high pressure stress environments, the rigidity, elasticity, toughness, and deformation compliance of ordina...

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Problems solved by technology

[0004] Ordinary asphalt can no longer meet the needs of high-grade heavy-duty pavements. Under high temperature and high pressure stress environments, the rigidity, elasticity, toughness, and deformation compliance of ordinary asphalt pavements are significantly insufficient. The dynamic viscosity of ordinary asphalt mixture at 60 ° C Smaller, prone to rutting under high pressure, prone to shifting and hugging under the action of interface shear stress, under the action of temperature difference, the deformation of the steel plate is large, and the deformation compliance of the mixture is poor and prone to cracking, resistance to temperature fatigue and Poor load fatigue performance is prone to problems such as cracking and falling off

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