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Quality testing method of double-layer drainage asphalt pavement

A quality inspection method and technology of drainage asphalt, which is applied in the direction of roads, roads, pavement details, etc., can solve problems such as the inability to fully detect the structural quality of double-layer drainage asphalt pavement, and achieve a perfect road quality evaluation system, accurate test results, and detection data reliable effect

Active Publication Date: 2021-10-19
CHINA TIESIJU CIVIL ENG GRP CO LTD +1
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Problems solved by technology

[0005] The purpose of the present invention is to provide a double-layer drainage asphalt pavement quality detection method to solve the problem that the current quality detection method cannot fully detect the structural quality of the double-layer drainage asphalt pavement

Method used

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  • Quality testing method of double-layer drainage asphalt pavement
  • Quality testing method of double-layer drainage asphalt pavement
  • Quality testing method of double-layer drainage asphalt pavement

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Embodiment 1

[0043] In this embodiment, pavement and quality inspection are carried out on the pavement of Chizhou City, a pilot city for sponge city construction. The length of the test section of drainage asphalt concrete in Chizhou sponge city is 170m, and the double-layer drainage asphalt pavement is carried out on the basis of the original 8cm AC25 densely graded asphalt concrete. For construction, 5cm PAC20 or PAC16 drainage asphalt concrete is used as the middle surface layer, and the corresponding upper layer is 4cm PAC13 or PAC10 drainage asphalt concrete. Set a slurry seal layer between the lower layer and the middle surface layer to achieve the effect of water tightness.

[0044] The test section is paved in the west right lane of Xiangyun Avenue. The estimated paving length is 200 meters, the actual paving length is 170 meters, the starting pile number is K0+180, and the ending pile number is K0+340. Since the central motor vehicle separation strip 3 is reserved in the center o...

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Abstract

The invention provides a double-layer drainage asphalt pavement quality detection method, comprising the following steps: step 1, sampling the asphalt mixture before pavement paving, burning to determine the amount of asphalt; sieving the remaining mineral materials after burning, and detecting the quality of the mixture Grading composition; Step 2, taking materials from the asphalt mixture on site, forming a Marshall test piece, and testing its performance indicators; Step 3, laying the asphalt mixture on the actual road surface, and sampling the road surface performance after the laying is completed Step 4: Carry out road surface core sampling in the detection road section, conduct industrial CT scanning on the core sample, and obtain the internal pore characteristics and spatial distribution of the core sample. The detection method of the present invention can timely and effectively monitor the deviation of material usage during construction, and provide timely feedback for mixing the mixture; at the same time, it can control the on-site construction link to ensure the construction quality; the test result is accurate and reliable, and it is a permeable asphalt concrete grade. Provide practical guidance for further optimization of configuration design.

Description

technical field [0001] The invention belongs to the technical field of asphalt pavement quality detection, and in particular relates to a double-layer drainage asphalt pavement quality detection method. Background technique [0002] The construction quality of asphalt mixture significantly affects the service life and service level of asphalt pavement. For double-layer drainage asphalt pavement, drainage performance is the key factor affecting the service life of the pavement. Therefore, it is necessary to strictly control the quality of the construction pavement and reasonably detect the construction of asphalt pavement The final condition, water seepage, friction coefficient and smoothness of the construction road surface, and the performance of asphalt concrete are all very important testing items in order to accurately understand the gradation control and asphalt ratio in the production process of the mixture. The performance detection data timely corrects and guides the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E01C23/01E01C11/22
CPCE01C11/226E01C23/01
Inventor 楚勇猛周江辛颖查显卫肖飞鹏王金刚宗启迪郭瑞
Owner CHINA TIESIJU CIVIL ENG GRP CO LTD
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