Simulation accelerated fatigue test system for asphalt pavement

Abstract

The invention discloses a simulation accelerated fatigue test system for asphalt pavement, and relates to the technical field of asphalt fatigue test. The system comprises a control processing terminal, a climate simulation unit, an environmental control box, a loading and strain measuring unit, a rut depth measuring unit and a data processing unit, wherein the signal output end of the control processing terminal is connected to the climate simulation unit; the output end of the climate simulation unit is respectively connected with a temperature control module and a humidity control module; one ends of the temperature control module and the humidity control module are both connected to the environmental control box. The simulation accelerated fatigue test system provided by the inventioncan perform simulation test under various climatic conditions on the test piece under the control of the computer to measure the rut depth, fatigue crack, strain, stress, temperature and other indexesof the test piece, can automatically collect to form a stress-strain curve and can export data through a computer. The data comprises rut depth time relationship, temperature and humidity curves varying with the time, and crack propagation data.

Description

technical field [0001] The invention belongs to the technical field of asphalt fatigue test, and in particular relates to a simulated accelerated fatigue test system for asphalt pavement. Background technique [0002] Most high-grade highways and municipal roads use asphalt pavement, and its failure mode is caused by fatigue and climatic conditions. The fatigue performance test of asphalt pavement can build an outdoor test road and carry out indoor straight road and loop simulation test methods, but the cost is high and the time is long. , so there is an urgent need in the market for a test system that can be quickly verified and can measure the mix ratio suitable for the best structure of local asphalt at a low cost. [0003] This system is composed of load and strain measurement unit, environmental chamber, measurement control system, computer control and processing system, and is used to test the durability of pavement when rolling under different vehicle loads under simu...

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Problems solved by technology

[0004] The object of the present invention is to provide a kind of system for asphalt pavement simulation accelerated fatigue test, through the control processing terminal, loading and strain measurement unit and rut depth measurement unit, solve the problem of high cost and long time of the existing asphalt pavement fatigue test device question

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