Dynamic frictional force testing system and dynamic frictional force testing method of pavement materials

A testing system and pavement material technology, applied in the direction of analyzing materials, force/torque/work measuring instruments, measuring devices, etc., can solve the problems of large deviation of test results, inability to carry out all-weather test results stability, etc., and achieve stable test results. Good performance and accurate test results

Inactive Publication Date: 2012-06-13
CHONGQING JIAOTONG UNIVERSITY
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Problems solved by technology

[0019] In order to overcome the problems of large test result deviation, inability to carry out all-weather test and poor test result stability in the p

Method used

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  • Dynamic frictional force testing system and dynamic frictional force testing method of pavement materials
  • Dynamic frictional force testing system and dynamic frictional force testing method of pavement materials
  • Dynamic frictional force testing system and dynamic frictional force testing method of pavement materials

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Embodiment Construction

[0036] attached figure 1 It is a structural schematic diagram of the pavement material dynamic friction testing system of the present invention, with figure 2 It is a structural schematic diagram of the test part of the pavement material dynamic friction test system of the present invention, in which 1 is a frequency conversion motor, 2 is a rotating wheel platform, 3 is a tested pavement material, 4 is a test simulated tire, 5 is a loading bar, 6 is a Pressurizing piston, 7 is a pressure sensor, 8 is a heat preservation chamber, 9 is a temperature control device, 10 is a data acquisition instrument, 11 is a computer, and 12 is a tension sensor. As can be seen from the figure, the pavement material dynamic friction testing system of the present invention includes: a rotating system, a loading system, a temperature control system and a testing system; wherein,

[0037] The rotating system includes a frequency conversion motor, a frequency modulation controller and a rotating ...

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Abstract

The invention provides a dynamic frictional force testing system and a dynamic frictional force testing method of pavement materials, which aim at solving the problems that a skid resistant testing method in the prior art is large in deviation of testing results, cannot perform testing in all weather and is poor in stability of testing results and the like. The dynamic frictional force testing system of pavement materials comprises a turning system, a loading system, a temperature control system and a testing system. The dynamic frictional force testing system of pavement materials and the testing method adopt simulated dynamic friction and simulate temperature, rotation speed, pressure and other key factors to test dynamic frictional force of the pavement materials. The dynamic frictional force testing system and the dynamic frictional force testing method of pavement materials have the advantages of being capable of performing testing in all weather, accurate in testing results, stable in testing results, and further capable of directly observing appearance changing of the pavement materials under the dynamic friction condition.

Description

technical field [0001] The invention relates to a system for testing dynamic friction of road traffic pavement materials, in particular to a system and a testing method for dynamic friction of pavement materials. Background technique [0002] With the rapid development of China's economy and the rapid increase in the number of various types of vehicles, highways, as one of the indispensable logistics channels, have achieved unprecedented development. The continuous construction of expressways has greatly promoted the development of the transportation industry, but at the same time, the continuous occurrence of traffic accidents has also aroused people's increasing attention to driving safety. A large part of the reasons for the occurrence of traffic accidents are inseparable from the lack of anti-skid performance of the road surface. Therefore, the anti-skid ability of pavement has become an important evaluation index to evaluate the performance of pavement. [0003] At pr...

Claims

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Application Information

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IPC IPC(8): G01N19/02G01L5/00
Inventor 吴国雄余苗王修云
Owner CHONGQING JIAOTONG UNIVERSITY
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