Asphalt pavement interlayer performance testing method and device
A technology of interlayer performance and asphalt pavement, which is applied to measuring devices and uses a stable shear force to test the strength and strength properties of materials. It can solve problems such as the inability to accurately describe the stress state, and achieve the effect of simple structure and accurate response.
Active Publication Date: 2019-08-06
SOUTHWEST JIAOTONG UNIV
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Problems solved by technology
[0005] Aiming at the above-mentioned technical problem that the existing asphalt pavement interlayer performance test method cannot accurately describe the stress state under various road conditions, the present invention provides a kind of asphalt pavement interlayer performance test method and device, which can accurately test according to actual road conditions Interlayer performance of asphalt pavement
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Embodiment
[0029] This embodiment is carried out based on the heavy-duty traffic asphalt pavement project of a city in the southeast coast, and the specific test method steps are as follows:
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The invention relates to the technical field of road engineering, in particular to an asphalt pavement interlayer performance testing method and an asphalt pavement interlayer performance testing device, and aims at providing a method capable of precisely testing asphalt pavement interlayer performance according to the actual road conditions. The adopted asphalt pavement interlayer performance testing method is characterized by comprising the steps of: acquiring a to-be-tested road section actual road condition and a to-be-tested road section core sample; calculating a strength shearing angleaccording to the road condition, performing an interlayer shear resistant strength test on the core sample at the strength shearing angle to obtain interlayer shear resistant strength; calculating a fatigue shearing angle according to the road condition, and performing an interlayer shearing fatigue life test on the core sample at the fatigue shearing angle; and evaluating the interlayer performance by combining the interlayer shear resistant strength and the interlayer shearing fatigue life. The asphalt pavement interlayer performance testing method can precisely test the asphalt pavement interlayer performance according to the actual road condition. The asphalt pavement interlayer performance testing device provided by the invention can adjust the shearing angles of tests, can perform inclined shearing tests on the laboratory core sample and the actual road core sample, and has wide application range.
Description
technical field [0001] The invention relates to the technical field of road engineering, in particular to a method and device for testing interlayer performance of asphalt pavement. Background technique [0002] The quality of interlayer bonding of asphalt pavement structure is one of the important factors affecting the life of asphalt pavement, especially in the large longitudinal slope section of the road, small radius section and vehicle acceleration and deceleration areas, etc., the pavement structure layer will bear greater horizontal load . When the load is repeated for a certain number of times, it is very easy to cause fatigue damage between the layers of the pavement structure, and in severe cases, a large number of rutting, shifting, wrapping, cracks and other diseases will be formed. In the construction process of asphalt pavement, if the inter-layer disposal is improper, it will also cause early disease of the asphalt pavement and seriously shorten the service l...
Claims
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Login to View More IPC IPC(8): G01N3/24G01N3/02
CPCG01N3/02G01N3/24
Inventor 艾长发黄杨权宋珲陈栩阿里·拉赫曼周正峰任东亚
Owner SOUTHWEST JIAOTONG UNIV