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Anti-stripping test device for surface aggregates of porous pavements

A technology of porous pavement and test device, which is applied in the direction of measuring device, using mechanical device, analyzing materials, etc., can solve problems such as affecting the function of pavement surface, damage of pavement structure strength, peeling of pavement surface particles, etc., and achieves simple and flexible parameter setting. , Simple manufacturing and testing, and intuitive test results

Inactive Publication Date: 2011-08-03
CHANGAN UNIV
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AI Technical Summary

Problems solved by technology

[0003] However, the porosity of this type of porous pavement is generally large (≥18%), and the large porosity makes the aggregate in the pavement material mainly point contact, resulting in a reduction in the amount of bonding material and a decrease in cohesive force. The road surface aggregates are prone to peel off and form pits under the dynamic load of the vehicle, which not only affects the surface function of the road surface, but also seriously damages the structural strength of the road surface

Method used

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  • Anti-stripping test device for surface aggregates of porous pavements
  • Anti-stripping test device for surface aggregates of porous pavements
  • Anti-stripping test device for surface aggregates of porous pavements

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Embodiment Construction

[0019] refer to figure 1 , figure 2 , image 3 As shown in the figure: 1. Support frame; 2. Temperature controller; 3. Synchronous pulley; 4. Test piece assembly area; 5. Test piece; 6. Visual control platform; 7. Observation window; 8. Connecting pillar ;9, support plate; 10, pull plate; 11, servo motor; 12, support frame; 13, rubber wheel; 14 travel switch; 19, reduction motor; 20, hydraulic station; 21, pressure plate; 22, hydraulic cylinder; 23, synchronous wheel; 24 synchronous belt; 25, rack; 26, joint; 27, hydraulic cylinder; 28, gear.

[0020] The test device is equipped with a deceleration motor 19 at the lower right part of the support frame 1, and the deceleration motor 19 drives the left and right drive wheels 3 in the middle of the support frame to move through the synchronous belt. 1. The rubber wheel 13 links to each other with the synchronous wheel 23 on the servo motor 11 through the synchronous belt 24, is fixed on the wheel steering control mechanism on ...

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Abstract

The invention discloses an anti-stripping test device for surface aggregates of porous asphalt pavements or porous concrete pavements. The test device comprises a supporting machine frame, a test piece assembling area, a wheel simulation mechanism, a loading mechanism, a wheel steering control mechanism, a reciprocal motion control mechanism, a temperature control machine, an observation window and a visual control platform. The device can well simulate the surface aggregate anti-stripping conditions of the porous pavements under conditions of different pavement temperatures, loads and vehicle running states and can obtain the main factors influencing the anti-stripping capacity of the surface aggregates of the porous pavements by combining raw material test analysis, thereby providing a basis for the selection of raw materials and design of mixture composition in a pavement design process.

Description

technical field [0001] The invention develops an anti-peeling test device for porous pavement surface pellets. It belongs to the road engineering test equipment. The test device can be used to test the peeling resistance of porous asphalt pavement and porous cement concrete pavement surface aggregates, and can better simulate the spalling resistance of road surface pellets under different road surface temperatures, loads, and vehicle driving conditions. Background technique [0002] Porous pavement, also known as noise reduction and drainage pavement, has a special skeleton structure. As a functional pavement, it can not only significantly reduce road noise, reduce noise pollution caused by vehicles running on the surrounding environment, but also timely and effectively eliminate Water accumulation on the road surface caused by rainfall, prevention of flooding, glare and other phenomena greatly improve the driving safety of vehicles in rainy days. At the same time, the por...

Claims

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Application Information

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IPC IPC(8): G01N19/04
Inventor 郑木莲程承
Owner CHANGAN UNIV
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