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Method for testing rutting-resistant performance of mixture in bituminous pavement

A test method and asphalt pavement technology, which is applied in the preparation of test samples, the application of repeated force/pulsation force to test the strength of materials, sampling devices, etc., can solve the problem that the anti-rutting performance of small beam specimens cannot truly reflect the asphalt pavement road Use performance and other issues to achieve the effect of convenient operation

Inactive Publication Date: 2011-07-27
NANTONG ZHONGRUN CONCRETE +1
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Problems solved by technology

However, with the continuous deepening of people's research, the disadvantages of the above-mentioned traditional test methods have gradually emerged, mainly in the following: the larger-sized asphalt mixture test panels are generally under the condition of low temperature, and the use of forklifts, etc. The large-scale machinery for road construction is obtained, and the mixture structure in the test panel is subjected to different degrees of deflection during the process of acquisition and transportation, so that the anti-rutting performance of the small beam specimens cut in the test panel cannot truly reflect the asphalt Real road performance

Method used

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  • Method for testing rutting-resistant performance of mixture in bituminous pavement
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  • Method for testing rutting-resistant performance of mixture in bituminous pavement

Examples

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Embodiment

[0029] Example: A test method for the anti-rutting performance of a mixture in an asphalt pavement includes the following steps:

[0030] (1) Drilling and cutting of cylindrical test pieces of asphalt mixture

[0031] In order to evaluate the anti-rutting ability of a certain expressway asphalt pavement, two cylindrical specimens with a diameter of 20cm were drilled at different positions on the road surface. To ensure the stability of the test results, the two cylindrical specimens used for splicing were drilled The positions taken should be adjacent. And cut the height of the cylindrical specimen to 10cm, cut off the spherical cap part with a height of 5.5cm in the diameter direction of the cylindrical specimen, and stick the remaining part tightly through plaster to obtain a splicing test with a length of 29cm and a height of 10cm Pieces.

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Abstract

The invention discloses a method for testing the rutting-resistant performance of a mixture in a bituminous pavement. In the method, on the basis of two cylinder test pieces drilled from the pavement, the cylinder test pieces are spliced by measures of cutting, bonding and the like; a hamburg rutting test is performed on the spliced test piece; and the rutting-resistant performance of the bituminous pavement is evaluated according to a relational curve between a rutting depth and a load working frequency. By the method, the shortcoming that a rutting plate is drilled from the bituminous pavement on the site is overcome, so the operation is convenient, the rutting-resistant performance of the bituminous pavement under the condition of a vehicle load can be evaluated accurately, a development rule of the rutting on the pavement can be forecast, and a significance is provided for reducing the detection cost and the maintenance cost of the pavement.

Description

Technical field [0001] The invention belongs to the technical field of application of asphalt pavement performance testing and evaluation, and specifically relates to a testing method for the anti-rutting performance of a mixture in an asphalt pavement. Background technique [0002] Rutting is one of the main diseases of asphalt pavement. It affects the flatness of the road surface and reduces the quality of the road surface. If the rut accumulates too fast, it will directly affect the service life of the road surface. In order to prolong the service life of asphalt pavement and improve the quality of pavement use, reasonable evaluation and estimation of the anti-rutting ability of the built asphalt pavement, and adopting corresponding technical measures for necessary disposal are the technical means usually adopted by road workers. On the one hand, it can obtain the development law of asphalt pavement rutting through analysis, and on the other hand, it can also provide decision-...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N3/32G01N1/08G01N1/28
Inventor 廖公云陈俊黄晓明
Owner NANTONG ZHONGRUN CONCRETE
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