A New Static Strength Test for Characterization of Rutting of Dense Graded Asphalt Mixtures

Volume 39, Issue 1 (January 2011)

Click here to download this paper now for $25 PDF (400K)

View License Agreement

ISSN: 1945-7553
CODEN: JTEVAB
Published Online: 26 July 2010
Page Count: 10

A New Static Strength Test for Characterization of Rutting of Dense-Graded Asphalt Mixtures

Kim, Kwang W.
Professor, Dept. of Regional Infrastructures Engineering, Kangwon National Univ., Chun Cheon,

Amirkhanian, Serji N.
Professor, Dept. of Civil Engineering, Clemson Univ., Clemson, SC

Kim, Hyun H.
Dept. of Regional Infrastructures Engineering, Kangwon National Univ., Chun Cheon,

Lee, Moonsup
Researcher, Korea Institute of Construction Technology, Goyang-si,

Doh, Yong S.
Director, OK Consultant Co., Ltd.Suwon University, Hwaseong-si,

(Received 19 February 2009; accepted 4 June 2010)

Abstract

A new static-test protocol was developed for measuring the deformation resistance of asphalt mixtures at high temperature, 60°C. A round edge loading head was used for estimating rut-related performance by statically pressing a specimen at the flat top center. The value measured by this test is considered as a strength against deformation or deformation strength and designated as “S_D.” The S_D has shown a high correlation with the rut depths of wheel tracking (WT) and the asphalt pavement analyzer (APA) tests. In this study, the feasibility of utilizing this test method to predict the rutting potential of asphalt mixtures is shown. Stiffness (G^∗/sin δ) test data for asphalt binders, two rutting tests’ (WT and APA) data, and S_D data for various laboratory mixtures were used in this evaluation. More than 50 field mixtures were also used for APA and S_D tests. Correlation analyses showed that the S_D had very high correlation with the stiffness of the binder (R²=0.9), with rut depth of WT (R²>0.90) and somewhat less with rut depth of APA (R²=0.77). It was concluded that the newly developed test is comparable to WT and APA and that the S_D is a property providing a reasonable estimation of rut potential of asphalt mixtures at high temperatures, even though it is a static-test property.

Keywords:
deformation strength, SD, asphalt mixture, rut, wheel tracking, asphalt pavement analyzer, DSR

Paper ID: JTE102385
DOI: 10.1520/JTE102385
ASTM International is a member of CrossRef.

Author Title A New Static Strength Test for Characterization of Rutting of Dense-Graded Asphalt Mixtures Symposium , 0000-00-00 Committee D04

		SEDL / Journals / Journal of Testing and Evaluation (JTE) / Citation Page Volume 39, Issue 1 (January 2011) Click here to download this paper now for $25 PDF (400K) View License Agreement ISSN: 1945-7553 CODEN: JTEVAB Published Online: 26 July 2010 Page Count: 10 A New Static Strength Test for Characterization of Rutting of Dense-Graded Asphalt Mixtures Kim, Kwang W. Professor, Dept. of Regional Infrastructures Engineering, Kangwon National Univ., Chun Cheon, Amirkhanian, Serji N. Professor, Dept. of Civil Engineering, Clemson Univ., Clemson, SC Kim, Hyun H. Dept. of Regional Infrastructures Engineering, Kangwon National Univ., Chun Cheon, Lee, Moonsup Researcher, Korea Institute of Construction Technology, Goyang-si, Doh, Yong S. Director, OK Consultant Co., Ltd.Suwon University, Hwaseong-si, (Received 19 February 2009; accepted 4 June 2010) Abstract A new static-test protocol was developed for measuring the deformation resistance of asphalt mixtures at high temperature, 60°C. A round edge loading head was used for estimating rut-related performance by statically pressing a specimen at the flat top center. The value measured by this test is considered as a strength against deformation or deformation strength and designated as “S_D.” The S_D has shown a high correlation with the rut depths of wheel tracking (WT) and the asphalt pavement analyzer (APA) tests. In this study, the feasibility of utilizing this test method to predict the rutting potential of asphalt mixtures is shown. Stiffness (G^∗/sin δ) test data for asphalt binders, two rutting tests’ (WT and APA) data, and S_D data for various laboratory mixtures were used in this evaluation. More than 50 field mixtures were also used for APA and S_D tests. Correlation analyses showed that the S_D had very high correlation with the stiffness of the binder (R²=0.9), with rut depth of WT (R²>0.90) and somewhat less with rut depth of APA (R²=0.77). It was concluded that the newly developed test is comparable to WT and APA and that the S_D is a property providing a reasonable estimation of rut potential of asphalt mixtures at high temperatures, even though it is a static-test property. Keywords: deformation strength, SD, asphalt mixture, rut, wheel tracking, asphalt pavement analyzer, DSR Paper ID: JTE102385 DOI: 10.1520/JTE102385 ASTM International is a member of CrossRef. Author Title A New Static Strength Test for Characterization of Rutting of Dense-Graded Asphalt Mixtures Symposium , 0000-00-00 Committee D04