Influence of Trinidad Lake Asphalt on the physical and anti-aging properties of petroleum asphalt

Influence of Trinidad Lake Asphalt on the physical and anti-aging properties of petroleum asphalt
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特立尼达湖沥青对石油沥青物理性能和抗老化性能的影响

DOI:
10.1080/10916466.2017.1396609
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发表时间:
2017-11
影响因子:
1.5
通讯作者:
Zhou Xinxing
Zhou Xinxing
中科院分区:
工程技术4区
文献类型:
--
作者:
Xu Song;Hu Changbin;Yu Jianying;Liu Renbing;Zhou Xinxing

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摘要评价了特立尼达湖沥青(TLA)改性石油沥青(PA)的路用性能。结果表明,TLA改善了PA的高温性能,避免了车辙,但降低了PA的低温性能,使PA面临更大的开裂风险。同时,TLA对PA的短期老化性能影响不大,但提高了PA的长期抗老化性能(PAV和UV),有利于延长路面的使用寿命。因此,建议在温暖地区使用TLA改性沥青,TLA的最佳掺量为30wt%。
ABSTRACT The road performance of Trinidad Lake Asphalt (TLA) modified petroleum asphalt (PA) were evaluated. Results show that TLA improves the high temperature performance of PA to avoid rutting resistance, while it degrades the low temperature performance of PA making PA face more risk of cracking. Meanwhile, the influence of TLA on short-term aging performance of PA is slight, but TLA enhances the long-term aging (PAV and UV) resistance, which is favorable for extending lifetime of pavement. According to this investigation, TLA modified asphalt is recommended to be used in warm areas and the optimal addition of TLA is 30 wt.% for the road construction.
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