Temperature Adjustment Factor for Back calculated Modulus of Asphalt Pavement Layer

doi:10.3969/j.issn.0253-374x.2011.11.014

Home > Archive>Volume 39, Issue 11, 2011 >1641-1645. DOI:10.3969/j.issn.0253-374x.2011.11.014

Temperature Adjustment Factor for Back calculated Modulus of Asphalt Pavement Layer
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                        10.3969/j.issn.0253-374x.2011.11.014
                    
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                        ZHOU LiangZHOU Liang
Key Laboratory of Road and Traffic Engineering of the Ministry of Education,Tongji University,Shanghai 201804,China; Transport Planning Research Institute,Ministry of Transport of P R China,Beijing 100028,China
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LING JianmingLING Jianming
Key Laboratory of Road and Traffic Engineering of the Ministry of Education,Tongji University,Shanghai 201804,China
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LIN XiaopingLIN Xiaoping
China Academy of Transportation Sciences,Beijing 100029,China
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WU QingfengWU Qingfeng
Shanghai Highway Administration Department,Shanghai 200063,China
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Abstract:

Falling weight deflectometer (FWD) tests were conducted at the pavements in Shanghai.The collected data were used to backcalculate the modulus of asphalt pavement layer.There was a good exponential relationship between the pavement layer modulus and the asphalt layer temperature.The equation of temperature and modulus was developed for the pavements in Shanghai.The temperature adjustment factors were proposed to correct the backcalculated modulus at any temperature to reference temperature modulus.Comparisons were made between the temperature corrected modulus and indoor and outdoor modulus.Results indicate that the temperature adjustment factor is of a high degree of reliability.

Key words:asphalt pavement; backcalculated modulus; temperature; adjustment factor; falling weight deflectometer（FWD）

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ZHOU Liang, LING Jianming, LIN Xiaoping, WU Qingfeng. Temperature Adjustment Factor for Back calculated Modulus of Asphalt Pavement Layer[J].同济大学学报(自然科学版),2011,39(11):1641~1645

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Received:September 06,2010
Revised:December 03,2010
Adopted:January 28,2011
Online: December 21,2011
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