Asphalt pavement loop type small accelerated abrasion instrument and using method thereof

A technology for accelerating wear of asphalt pavements, which is applied in the direction of instruments, scientific instruments, and testing wear resistance. It can solve the problems of deviation of attenuation law, difficulty in simulating contact and wear conditions, etc., and achieve reasonable structure, improve pavement anti-skid performance, Ease of use

Pending Publication Date: 2020-02-21
云南省公路科学技术研究院
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] With the continuous increase of the number of motor vehicles in our country, the situation of road traffic safety is becoming more and more serious. Although the new technologies related to the road surface are becoming more and more mature, there are still many deficiencies in the research work to solve the anti-skid safety performance of the road surface. Most of the studies on the anti-skid performance of asphalt pavement directly analyze the anti-skid index of the anti-skid layer of asphalt pavement or observe the attenuation of the anti-skid value of asphalt pavement through the reciprocating rubbing test of the rutting machine, so as to optimize the structural form with better anti-skid performance , but this method is difficult to simulate the contact and wear of the wheels on the asphalt pavement during one-way driving in the actual driving process, and the attenuation law after different loading times has a large deviation from the actual

Method used

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  • Asphalt pavement loop type small accelerated abrasion instrument and using method thereof

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Experimental program
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Embodiment 1

[0018] Embodiment 1: as figure 1 As shown, the asphalt pavement loop-type small-scale accelerated wear tester includes a frame pole 1, a bottom plate 3 fixed on the frame pole 1 and a driving device, the bottom plate 3 is provided with a groove, and the test piece 8 is arranged in In the tank, specimen 8 is an asphalt mixture splicing specimen. The driving device is connected to the rack rod 1 through the chute of the rack rod 1, the counterweight wheel 6 is connected to the driving device, and the test wheels are arranged on the bottom of the counterweight wheel 6 through shafts of different lengths to form the outer test wheel 2 and Inside test wheel 7. The drive device includes a motor 5 and a reducer 10, the drive motor 5 is electrically connected to the intelligent time control switch 9, the output shaft of the drive motor 5 is connected to the reducer, the reducer is connected to the counterweight wheel 6, and the drive motor 5 is connected to the screw 4 connect. The...

Embodiment 2

[0025] Embodiment 2: as figure 1 As shown, the asphalt pavement loop-type small-scale accelerated wear tester includes a frame pole 1, a bottom plate 3 fixed on the frame pole 1 and a driving device, the bottom plate 3 is provided with a groove, and the test piece 8 is arranged in In the tank, specimen 8 is an asphalt mixture splicing specimen. The driving device is connected to the rack rod 1 through the chute of the rack rod 1, the counterweight wheel 6 is connected to the driving device, and the test wheels are arranged on the bottom of the counterweight wheel 6 through shafts of different lengths to form the outer test wheel 2 and The inner test wheel 7; the drive device includes a motor 5 and a reducer 10, the drive motor 5 is electrically connected to the intelligent time control switch 9, the output shaft of the drive motor 5 is connected to the reducer, the reducer is connected to the counterweight wheel 6, and the drive Motor 5 is connected with screw rod 4. The wid...

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Abstract

The invention relates to an asphalt pavement loop type small accelerated abrasion instrument and a using method thereof, and belongs to the technical field of engineering machinery. The instrument comprises a rack supporting rod, and a bottom plate and a driving device which are fixed on the rack supporting rod. Grooves are formed in the bottom plate, test pieces are directly put into the grooves,the driving device is connected with the rack supporting rod through the chute of the rack supporting rod, a balance weight wheel disc is connected with the driving device, test wheels are arranged at the bottom of the balance weight wheel disc through shafts with different lengths to form an outer side test wheel and an inner side test wheel, a driving motor is electrically connected with an intelligent time control switch, and a screw is arranged on the driving motor. The asphalt pavement loop type small accelerated abrasion instrument is reasonable in structure and convenient to use, and can better simulate the wear condition of the antiskid structure on the surface layer of the road surface when the tire runs on the dry road surface in one direction under different loading times and load conditions, so that the surface layer mixture structure type more beneficial to improving the antiskid performance of the road surface is obtained.

Description

technical field [0001] The invention relates to a small-sized asphalt pavement ring-type accelerated wear instrument and a using method thereof, belonging to the technical field of engineering machinery. Background technique [0002] With the continuous increase of the number of motor vehicles in our country, the situation of road traffic safety is becoming more and more serious. Although the new technologies related to the road surface are becoming more and more mature, there are still many deficiencies in the research work to solve the anti-skid safety performance of the road surface. Most of the studies on the anti-skid performance of asphalt pavement directly analyze the anti-skid index of the anti-skid layer of asphalt pavement or observe the attenuation of the anti-skid value of asphalt pavement through the reciprocating rubbing test of the rutting machine, so as to optimize the structural form with better anti-skid performance , but this method is difficult to simulat...

Claims

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Application Information

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IPC IPC(8): G01N3/56G01N3/02
CPCG01N3/02G01N3/56
Inventor 李晓龙张世俊施德武周彬贾敬鹏蔡春兵刘宗祥郑卫松李明顺崔同省白丛启张桂铭冯群英李宁赵洲清
Owner 云南省公路科学技术研究院
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