HMA Longitudinal Joint Evaluation and Construction
Record Type: DOT

Many asphalt pavement failures occur at the longitudinal joint. When the first lane of a roadway is paved, the pavement edges lack confinement, creating the potential for lower than desired densities at the longitudinal joint, allowing water (and its associated damages) to enter the pavement. Methods such as traditional core density, nuclear density, permeability, and gradation should be performed at and away from the joints in order to determine the source of the distresses. While several states are considering the incorporation of joint density as a QC measure, it is not currently included in Arkansas' construction specification. The addition of this measure could significantly improve the quality of asphalt pavements in Arkansas.
Start date: 2007/7/1
End date: 2009/6/30
Status: Active
Contract/Grant Number: TRC-0801
Total Dollars: 254320
Source Organization: Arkansas State Highway and Transportation Department
Date Added: 06/21/2007
Index Terms: Hot mix paving mixtures, Hot mixed asphalt, Longitudinal joints, Pavement cracking, Pavement design, Pavement distress, Pavement performance, Arkansas, Permeability, Paving, Research projects,

Federal Highway Administration
http://www.fhwa.dot.gov/
1200 New Jersey Avenue, SE
Washington, DC 20590
USA
Phone: (202) 366-4000

Greenwood, Mark W.
Phone: (501) 569-2552
Fax: (501) 569-2070
Email: mark.greenwood@arkansashighways.com

University of Arkansas, Fayetteville
Board of Trustees
Fayetteville, AR
USA

Williams, Stacy
Phone: (479) 575-2220
Fax: (479) 575-7639
Email: sgwill@engr.uark.edu