An impact and abrasion device for ultra-thin pavement overlay

Abstract

The invention relates to an impact abrasion device for an ultrathin additional paved layer for pavement. Two parallel slide rods are arranged along the length direction of a frame; the slide rods arearranged in a horizontal sliding rail; the horizontal sliding rail is fixed on a cross beam connected with an abrasion bracket; the top ends of a vertical slide guide rod and a pressure cylinder are fixed at the top in the abrasion bracket and the bottoms are fixed at the top of a bearing frame; the pressure cylinder is electrically connected with a moveable controller; bearing frame slide wheelscapable of sliding up and down along a guide rail arranged on the abrasion bracket are arranged on the two sides of the lower part of the bearing frame; a pressing wheel and a sliding speed reducer which are connected through a driving mechanism are arranged on the bearing frame; an input shaft of the sliding speed reducer is connected with an output shaft of a sliding motor; the sliding motor iselectrically connected with the moveable controller; a test piece is arranged under the abrasion bracket on the frame; an impact device opposite to the abrasion bracket is arranged at one end of the frame; a buffering device is arranged at the other end of the frame. The impact abrasion device can be applied to the field of the test equipment or instrument for road materials.

Description

technical field [0001] The invention belongs to the field of test equipment or instruments for road materials, and in particular relates to an impact wear device for an ultra-thin pavement overlay under impact load. Background technique [0002] With the rapid development of my country's economy and road traffic, the rapid increase in car ownership, the continuous increase in road traffic, and the phenomenon of heavy traffic and heavy loads are becoming more and more serious, resulting in the rapid decline of the surface layer function of the original cement or asphalt pavement. (decrease in skid resistance, noise, flatness, etc.), especially in my country's high-grade highways, most of which use semi-rigid base asphalt pavement structures. The asphalt surface layer is not the main load-bearing layer, but mainly functions as a functional layer, which is more likely to cause The wear of the surface layer directly affects the driving safety and comfort of the car. The attenuati...

AI Technical Summary

Problems solved by technology

The use of ultra-thin asphalt concrete pavement is an effective measure to prolong pavement life, improve driving quality, correct surface defects, improve safety features (including improving anti-skid and drainage), reduce noise, increase pavement strength and other pavement functions. The anti-wear ability of the thin wearing layer is the most important property that directly affects the life of various capabilities of the wearing layer. The better the anti-wear ability of the wearing layer, the better the anti-skid ability can be maintained for a long time under the action of driving load, etc. performance, but there is currently a lack of an effective wear device to evaluate the wear resistance of ultra-thin overlays

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