A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Development of a New Method for Assessing Asphalt Binder Performance Durability
This project was a comprehensive study directed at developing an improved method of screening asphalt binders for long-term pavement performance. A new dynamic shear rheometer (DSR) function which correlates well with ductility was coupled with a new aging procedure in a tentative specification which should guard against failure caused by premature asphalt hardening and consequent fatigue cracking. The correlation was found for unmodified asphalts between ductility (at 15 degrees C, 1 cm/min) below 10 cm and the DSR function. The correlation was originally developed for DSR measurements at 15 degrees C and 0.005 rad/s. These conditions were shifted to 43 degrees C and 10 rad/s by using time-temperature superposition to produce a method that is easily accessible to standard laboratory rheological equipment and methods. The developed method is not adequate for modified asphalts.
Development of a New Method for Assessing Asphalt Binder Performance Durability
This project was a comprehensive study directed at developing an improved method of screening asphalt binders for long-term pavement performance. A new dynamic shear rheometer (DSR) function which correlates well with ductility was coupled with a new aging procedure in a tentative specification which should guard against failure caused by premature asphalt hardening and consequent fatigue cracking. The correlation was found for unmodified asphalts between ductility (at 15 degrees C, 1 cm/min) below 10 cm and the DSR function. The correlation was originally developed for DSR measurements at 15 degrees C and 0.005 rad/s. These conditions were shifted to 43 degrees C and 10 rad/s by using time-temperature superposition to produce a method that is easily accessible to standard laboratory rheological equipment and methods. The developed method is not adequate for modified asphalts.
Development of a New Method for Assessing Asphalt Binder Performance Durability
C. J. Glover (author) / R. R. Davison (author) / C. H. Domke (author) / Y. Ruan (author) / P. Juristyarini (author)
2001
226 pages
Report
No indication
English
Construction Equipment, Materials, & Supplies , Highway Engineering , Test methods , Asphalt cements , Binders(Materials) , Durability , Bituminous concretes , Texas , Ductility , Rheological properties , Viscosity , Chromatograms , Aging tests(Materials) , Hardening , Cracking(Fracturing) , Oxidation , Failure stress , Superpave