Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Correlating Loaded Wheel Testing Dynamic Stability with Asphalt Pavement Analyzer Rut Depth
Loaded Wheel Tester (LWT) has been widely used as a proof test for rutting during hot mix asphalt (HMA) mix design and Quality Control / Quality Assurance (QC/QA) process. Among many versions of LWT, a flat solid rubber wheeled LWT (FLWT) has been adopted by the highway design guide in China for many years. Dynamic Stability (DS), the number of load repetitions to generate 1-mm rutting during the last 15-min of one-hour testing, has been selected to characterize rutting for HMA. During the recent years, another version of LWT, the Asphalt Pavement Analyzer (APA), has been introduced into China, and has gained popularity in pavement industry. Similar to the AASHTO TP 63-03, the final APA rut depth has been used in China to evaluate the rutting performance of HMA. In order to compare both data, a correlation between DS and APA rut depth will be necessary. The present study selected several mixtures commonly used in China and correlated the test results between traditional LWT and APA. The mixtures selected in this study included gyratory (Superpave) designed 25, 19 and 13-mm mixtures, dense-graded mixtures (AC) (25, 19 and 13-mm) designed with Marshall mix design method, and a 13mm SMA mixture. The result from this study indicated that a strong correlation existed between the DS and APA rut depth for the mixtures studied.
Correlating Loaded Wheel Testing Dynamic Stability with Asphalt Pavement Analyzer Rut Depth
Loaded Wheel Tester (LWT) has been widely used as a proof test for rutting during hot mix asphalt (HMA) mix design and Quality Control / Quality Assurance (QC/QA) process. Among many versions of LWT, a flat solid rubber wheeled LWT (FLWT) has been adopted by the highway design guide in China for many years. Dynamic Stability (DS), the number of load repetitions to generate 1-mm rutting during the last 15-min of one-hour testing, has been selected to characterize rutting for HMA. During the recent years, another version of LWT, the Asphalt Pavement Analyzer (APA), has been introduced into China, and has gained popularity in pavement industry. Similar to the AASHTO TP 63-03, the final APA rut depth has been used in China to evaluate the rutting performance of HMA. In order to compare both data, a correlation between DS and APA rut depth will be necessary. The present study selected several mixtures commonly used in China and correlated the test results between traditional LWT and APA. The mixtures selected in this study included gyratory (Superpave) designed 25, 19 and 13-mm mixtures, dense-graded mixtures (AC) (25, 19 and 13-mm) designed with Marshall mix design method, and a 13mm SMA mixture. The result from this study indicated that a strong correlation existed between the DS and APA rut depth for the mixtures studied.
Correlating Loaded Wheel Testing Dynamic Stability with Asphalt Pavement Analyzer Rut Depth
Chen, Xingwei (Autor:in) / Huang, Baoshan (Autor:in) / Xu, Zhihong (Autor:in)
Airfield and Highway Pavements Specialty Conference 2006 ; 2006 ; Atlanta, Georgia, United States
Airfield and Highway Pavement ; 479-485
28.04.2006
Aufsatz (Konferenz)
Elektronische Ressource
Englisch
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