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Asphalt mixture aging test method

An asphalt mixture and asphalt technology is applied in the field of highway asphalt pavement material performance testing, which can solve the problems of asphalt mixture performance aging and pavement performance degradation, and achieve the effects of easy testing, accurate and reliable test data, and good promotion value.

Inactive Publication Date: 2012-10-17
JIANGSU SHANSHUI ENVIRONMENT CONSTR GRP
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Problems solved by technology

The aging of asphalt will lead to the aging of asphalt mixture performance, which in turn will lead to the decline of pavement performance

Method used

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Embodiment Construction

[0014] According to the accelerated aging method of hot mix asphalt mixture (T0734-2000) stipulated in "Test Regulations for Asphalt and Asphalt Mixtures in Highway Engineering" (JTG E20-2011), obtain short-term aged hot mix asphalt mixture samples; take the samples obtained in step 1 For short-term aging hot mix asphalt mixture samples, use the same sample method and equipment as the pressure aging vessel accelerated asphalt aging test (T0630-2011) specified in the "Test Regulations for Asphalt and Asphalt Mixtures in Highway Engineering" (JTG E20-2011) Carry out the long-term aging test of asphalt mixture. During the long-term aging test of asphalt mixture, loosely spread 200g±20g of short-term aging asphalt mixture in each sample pan, adjust the test temperature to 100°C±3°C, and adjust the test time to 3d (72h±0.5h); the obtained long-term aging hot mix asphalt mixture samples can be used for various performance tests, and the aging degree of the hot mix asphalt mixture can...

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Abstract

The invention discloses an asphalt mixture aging test method. The method comprises the steps that: a short-term aging hot-mixed asphalt mixture sample is obtained with a hot-mixed asphalt mixture accelerated-aging method specified by highway engineering asphalt and asphalt mixture testing procedures; the short-term aging hot-mixed asphalt mixture sample is obtained, and a testing method and testing equipments same as those of a pressure-aging-vessel-accelerated asphalt aging test specified by the highway engineering asphalt and asphalt mixture testing procedures are adopted, and an asphalt mixture long-term aging test is carried out; the performances of the long-term aging hot-mixed asphalt mixture obtained by the test is compared with the performances of an original non-aged asphalt mixture, such that the aging degree of the hot-mixed asphalt mixture can be accurately determined. With the testing method provided by the invention, the performance aging condition of the asphalt mixture after long term use in an actual environment can be simulated, such that the aging performance or the anti-aging ability of the asphalt mixture can be accurately determined.

Description

Technical field [0001] The present invention is a method of aging testing of asphalt mixture. It is to obtain the accelerated aging hot mixing mixture under the high temperature conditions of forced ventilation, which can effectively evaluate the aging performance of the hot mixing asphalt mixture.Technical field. Background technique [0002] The factors that affect the aging of asphalt are mainly thermal, oxygen, light, and water. Different influencing factors are separate or interactive, changing the formalities and structural links of asphalt, and change the nature of asphalt. [0003] The method of rapid aging of asphalt in the room has matured. The purpose is to simulate the conditions of the live aging, accelerate the process of asphalt aging, and test the changes in the nature of asphalt at different use stages.And instruct the asphalt's route.However, the aging of the asphalt is not exactly the same as its aging state in the asphalt mixture. In the asphalt mixture, aspha...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N33/42
Inventor 袁浩马涛
Owner JIANGSU SHANSHUI ENVIRONMENT CONSTR GRP
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