Asphalt road surface material applicable to crossroads and bus station platforms in severe cold regions

Abstract

The invention relates to an asphalt road surface material which is applicable to crossroads and bus station platforms in severe cold regions, aiming to solve the problem that the asphalt road surfaces on the bus station platforms which buses drive into frequently and on the side of stop line at crossroads with larger traffic flows in large cities in northern severe cold regions are rugged due to frequent braking. In the invention, the mass of rubber modified asphalt accounts for 9.6-10.3% of the total mass of aggregate and filler, the mass of iron ore tailing sands accounts for 2.8-4.2% of the total aggregate mass, the grain diameters of basalt are 5-8mm and 14-17mm. The inventive asphalt road surface material can not have upheavals or tracks in summer even under the condition of frequent braking, or crack in winter, thus being especially suitable for frequent braking positions at bus station platforms, crossroads with larger traffic flows, slope base of descending sections in cities in severe cold regions.

Description

Technical field: [0001] The invention relates to an asphalt pavement material. Background technique: [0002] In cities in the northern alpine regions, such a road condition can often be seen. Large buses often stop at platforms and intersections controlled by signal lights. The resulting kinetic energy factors often cause considerable damage to the road surface, causing damage to the surface of the road surface and producing pockets and grooves. As a result, the asphalt road surface here is uneven, and the vehicle will experience serious bumps when traveling here, which affects the stability of driving. Especially when the bus enters the platform, the passengers leave their seats and prepare to get off. At this time, the passengers are unstable due to the vehicle bumps , causing mutual collision and trampling. Even a newly laid asphalt pavement will have the above situation after a year of use. The damaged pavement also affects the image of the city to a certain extent. ...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problem of frequent braking and starting at the bus stops and intersections where the buses of large and medium-sized cities frequently enter in the northern alpine region, where the asphalt road surface is uneven, and the vehicle will go here. To solve the problem of bumping and affecting the stability of vehicles, provide an asphalt pavement material suitable for urban intersections and bus stops in alpine regions