One-time molding asphalt concrete speed bump and its construction technology

Abstract

The invention relates to a molded asphalt concrete speed bump, comprising a high-viscosity emulsified asphalt gravel seal layer laid on a ground base, and a speed-speed belt surface layer laid on the high-viscosity emulsified asphalt gravel seal. There is a deceleration marking line on the upper surface of the layer, and the surface material of the deceleration belt is poured asphalt concrete; the two ends of the deceleration belt surface layer are buried under the road surface, and the upper surface of the deceleration belt surface layer is provided with a hump higher than the road surface The present invention further provides the above-mentioned construction process for forming an asphalt concrete speed bump. The present invention obtains a high-viscosity emulsified asphalt gravel seal layer that meets specific technical requirements and a surface layer of the asphalt concrete speed bump. A speed bump with long service life, efficient deceleration and high driving comfort, the speed bump construction technology has no special requirements for the construction environment, the construction period is short, the construction is simple, and the application range is wide.

Description

technical field [0001] The invention belongs to the technical field of road traffic safety, and in particular relates to an asphalt concrete deceleration belt with one-time forming property and its construction technology. Background technique [0002] The deceleration belt is a special facility for road traffic safety. It is mainly installed in toll plazas, ramp entrances and exits, continuous sharp turns, downhill sections, expressway terminals, enterprises and schools, etc., where vehicles need to slow down and are likely to cause traffic accidents. road section. Speed ​​bumps play the role of buffering and deceleration during driving, which greatly reduces the occurrence of accidents at major traffic crossings and improves the safety of traffic crossings. [0003] At present, the speed bumps used in the field of road traffic are roughly divided into two types: one is fixed on the ground, with high-strength rubber as the base, the surface is black and yellow, and equippe...

AI Technical Summary

Problems solved by technology

The above two speed bumps can play a certain role, but they all have disadvantages: the width of the speed bump fixed on the ground is too small, the bumps are large, and the noise is too much, which reduces the driving comfort; the service life is not long enough, which greatly increases the road maintenance costs, and it is easy to be damaged at the position of the installation hole, causing the deceleration block to fall off, exposing the steel nail, and there is a hidden danger of puncturing the tire and causing a traffic accident. Once one of the deceleration blocks of this deceleration belt is broken, its effect will be sharp Decline, the expected deceleration effect cannot be achieved; with the increase of use time, the deceleration effect of the hot-melt deceleration marking line becomes less and less obvious, and the expected effect cannot be achieved

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