Study on the Influence of Aggregate Roundness of Reclaimed Asphalt Mixture on Its Road Performance

Qigui Yi; Nan Ru; Zhaoting Liu

doi:10.20944/preprints202308.1839.v1

Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

Version 1 : Received: 26 August 2023 / Approved: 28 August 2023 / Online: 29 August 2023 (04:22:29 CEST)

Recycled asphalt mixture is a material remixed with old asphalt recycled material (RAP) and new aggregate, and its application is of great significance in environmental protection.Due to the wear and tear of the old asphalt mixture, the road performance of the recycled asphalt mixture will decrease. This paper uses IPP software to obtain the shape characteristics of the old and new aggregates, and found that the roundness of the old aggregate of 9.5mm-16mm is the most serious wear. Therefore, the 30% RAP, and the influence of the roundness of the recycled asphalt mixture on the road performance is studied.

reclaimed asphalt mixture; roundness; road performance

Engineering, Civil Engineering

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Study on the Influence of Aggregate Roundness of Reclaimed Asphalt Mixture on Its Road Performance

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