Study on the effect of different environmental factors on the aging gradient of asphalt binder based on field aging test

Guo, Meng; Liang, Meichen; Liu, Fei; Bi, Yi; Du, Xiuli

doi:10.1080/10298436.2023.2245950

Cited by 5 publications

(1 citation statement)

References 37 publications

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“…The aging of asphalt binder has a great impact on the service life and service level of asphalt pavement [3], and research on the aging of asphalt binder has been a hot research topic for scholars at home and abroad. During service, asphalt pavements are affected by external environmental factors such as atmosphere, sunlight and water [4,5]. This leads to the deterioration of the asphalt binder, causing pavement distresses such as cracking, loosening and potholes [6][7][8].…”

Section: Introductionmentioning

confidence: 99%

Experimental Study on Anti-Aging Effect of Asphalt Binder Liquid Anti-Aging Agent

Fu,

Wang,

Song

et al. 2024

Buildings

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During its service life, asphalt pavement is affected by environmental factors such as heat, light, oxygen and moisture. The asphalt binder ages, resulting in a decrease in the performance of the asphalt pavement. Therefore, the development and application of an asphalt anti-aging agent is of great significance. In this paper, the road performance of the developed asphalt binder liquid anti-aging agent was verified in the two scales of asphalt binder and asphalt mixture, respectively. Firstly, a simple aging test method was proposed using needle penetration as the evaluation index. The aging time of the simple aging method was determined to be 20 h. Secondly, the addition of anti-aging agents improved the low-temperature performance of the asphalt binder and had a less adverse effect on the high-temperature performance. The test values of needle penetration and the ductility of the asphalt binder increased and the values of the softening point decreased. And the road performance of the anti-aging asphalt mixture basically met the specification requirements. The addition of the anti-aging agent improved the low-temperature performance of the aged asphalt mixture by 16%, which is of great significance for improving the service life of asphalt pavement.

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