DETERMINING THE RHEOLOGICAL PROPERTIES OF ASPHALT BINDER USING DYNAMIC SHEAR RHEOMETER (DSR) FOR SELECTED PAVEMENT STRETCHES

Autor:	Chetana Joshi, Archana M. R, Amit Patted
Rok vydání:	2013
Předmět:	Materials science Rheology Rheometry Rut business.industry Asphalt Dynamic shear rheometer Fatigue testing Modulus Structural engineering Composite material Deformation (engineering) business
Zdroj:	International Journal of Research in Engineering and Technology. :192-196
ISSN:	2319-1163 2321-7308
DOI:	10.15623/ijret.2013.0213033
Popis:	This paper aims to study the rheological properties of the binder taken from four years old flexible p avement stretch. The stretch was divided into six different sections based on the th ickness of the surface course. Originally, 60/70 gr ade asphalt binder was used throughout the pavement stretch. The binder was obt ained from the process of extraction and recovery. Dynamic shear rheometer (DSR) test was conducted on the recovered asphalt b inder to determine the various parameters viz., Com plex modulus G * , Elastic and viscous modulus, Complex viscosity and the phase an gle δ. The major pavement distress modes namely, rutting and fatigue cracking were addressed by these output parameters of DSR. R utting is caused by permanent deformation of paving mix while fatigue is related to the energy absorbed during repeated load applica tion to pavement. The test results indicated that tbinder extracted from the selected stretches were stiff enough to resist rutting and fatigue failure.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::803603f24ff50c45f9e590daec487730 https://doi.org/10.15623/ijret.2013.0213033 Zobrazit plný text záznamu