PERFORMANCE OF WARM ASPHALT MIXTURE MODIFIED BY THE NEW ADDITIVE

[rahmatii]

PERFORMANCE OF WARM ASPHALT MIXTURE MODIFIED BY THE NEW ADDITIVE

XU Zhoucong, LIU Liping, LI Di and JIANG Zilong
Key Laboratory of Road and Traffic Engineering of the Ministry of Education,
Tongji University, 4800 Cao’an Rd., Shanghai, 201804, China; email:
xuzhoucong@163.com

Abstract: Warm mix asphalt (WMA) has been increasingly applied in pavement
project due to its environmentally friendly and low-carbon. Therefore, more and
more WMA additives appeared on the market. In order to validate the new domestic
warm mix additive’s pavement performance, in this paper, the new additive (A or
made in China is added to the mixture (AC-13, AC-20), and the mixture’s pavement
performance is tested. The test results show that, the mixing and compaction
temperature of mixture could be decreased by 30~40℃ if additive A or B is used, it
achieves the effect of energy saving and emission reduction. And the mixture’s
performance indicators meet the requirement in current specification. In addition,
compared with the corresponding HMA, the low temperature performance and
fatigue performance of WMA containing additive A or B are improved

 

Key Word: highway engineering, WMA mixture, the new additives, pavement
performance, fatigue performance

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