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Effect of moisture on the aging behavior of asphalt binder
Abstract：The moisture aging effect and mechanism of asphalt binder during the in-service life of pavement were investigated by laboratory simulating tests.Pressure aging vessel (PAV) test simulating the long-term aging of binder during the in-service life of pavement was modified to capture the long-term moisture aging effect of binder.Penetration grade tests including penetration test,soften point test,and ductility test as well as SuperpaveTM performance grade tests including viscosity test,dynamic shear rheometer test,and bending beam rheometer test were conducted to fully evaluate the moisture aging effect of binder.Fourier transform infrared spectroscopy test and Gel-permeation chromatography test were applied to provide a fundamental understanding of the moisture aging mechanism of binder.The results indicate that moisture condition can accelerate the aging of asphalt binder and shorten the service life of asphalt binder.The modified PAV test with moisture condition can well characterize the moisture aging properties of asphalt binder. 作者： Author： Tao Ma[1] Xiao-ming Huang[2] Enad Mahmoud[3] Emil Garibaldy[4] 作者單位： School of Transportation, Southeast University, Nanjing 210096, China ;Department of Civil and Environmental Engineering, University of Wisconsin-Madison, Madison 53706, USASchool of Transportation, Southeast University, Nanjing 210096, ChinaCivil Engineering and Consruction, Bradley University, Peoria 61625, USADepartment of Civil and Environmental Engineering, University of Wisconsin-Madison, Madison 53706, USA 期 刊： 礦物冶金與材料學(xué)報(bào) EISCI Journal： International Journal of Minerals,Metallurgy and Materials 年，卷(期)： 2011, (4) 分類號(hào)： U414 Keywords： pavement asphalt aging moisture 機(jī)標(biāo)分類號(hào)： TE6 O57 機(jī)標(biāo)關(guān)鍵詞： asphalt binder test service life aging effect infrared spectroscopy understanding during performance results dynamic fully beam 基金項(xiàng)目： the National Natural Science Foundation of China【Effect of moisture on the aging beha】相關(guān)文章：
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