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Open AccessArticle

Influence of Binder Property and Mortar Thickness on High-Temperature Performance of Cold Recycled Mixtures with Asphalt Emulsion

1
Department of Civil Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China
2
JiangSu Communications Holding Co. Ltd., Nanjing 210002, China
3
Shanghai Municipal Engineering Cost Consultation Co. Ltd., Shanghai 200092, China
*
Author to whom correspondence should be addressed.
Materials 2019, 12(17), 2718; https://doi.org/10.3390/ma12172718
Received: 3 August 2019 / Revised: 20 August 2019 / Accepted: 22 August 2019 / Published: 24 August 2019
(This article belongs to the Special Issue Environmentally Friendly Renewable Materials)
Four kinds of cold recycling (CR) mixtures with different asphalt emulsions were studied for their high-temperature performance in both binder properties and internal structures aspects. Digital image processing was introduced to determine the thickness spectrum for the asphalt mortar of the CR mixtures from a mesoscopic perspective. The time–temperature sweep (TTS) test was conducted to obtain the rheological parameters of each corresponding emulsified residue and the permanent deformation performance of each CR mixture was measured by dynamic creep test. A principle component analysis (PCA) was used to compare the typical performance parameters of the CR mixtures and find the factors controlling the rutting resistance of CR mixtures. The results show that the high-temperature performance of the CR mixtures with a modified emulsified asphalt showed improvements relative to the nominal case. Including Marshall stability, several parameters from the rheological properties of binder (G*/sinδ, flow number) and mortar thickness (max, range proportion 0–10 mm) could significantly influence the high-temperature performance and rutting resistance of the CR mixtures. View Full-Text
Keywords: cold recycling; high-temperature performance; mortar thickness; asphalt emulsion; principle component analysis cold recycling; high-temperature performance; mortar thickness; asphalt emulsion; principle component analysis
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MDPI and ACS Style

Gao, L.; Wang, Z.; Liu, Y.; Zheng, J.; Li, H. Influence of Binder Property and Mortar Thickness on High-Temperature Performance of Cold Recycled Mixtures with Asphalt Emulsion. Materials 2019, 12, 2718. https://doi.org/10.3390/ma12172718

AMA Style

Gao L, Wang Z, Liu Y, Zheng J, Li H. Influence of Binder Property and Mortar Thickness on High-Temperature Performance of Cold Recycled Mixtures with Asphalt Emulsion. Materials. 2019; 12(17):2718. https://doi.org/10.3390/ma12172718

Chicago/Turabian Style

Gao, Lei; Wang, Zhanqi; Liu, Yanping; Zheng, Junqiu; Li, Hua. 2019. "Influence of Binder Property and Mortar Thickness on High-Temperature Performance of Cold Recycled Mixtures with Asphalt Emulsion" Materials 12, no. 17: 2718. https://doi.org/10.3390/ma12172718

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