IMPROVEMENT OF LONGITUDINAL JOINTS IN ASPHALT PAVEMENT. FINAL REPORT IOWA HIGHWAY RESEARCH BOARD PROJECT HR-215
Research is reported which attempted to identify construction procedures that will provide an improved centerline joint on asphalt concrete pavements. Various construction procedures and their evaluation are described. Core densities were made and visual inspections were made 3 years after construction. Center cracking was measured at 4, 5, and 6 years. The only procedure to rank the same when comparing cracking and density (delete the 1:1 slope shoe on the edge) is described. This procedure had the highest average density and also the least cracking through 1985. This method provided the best performance for 4 years after construction and involved the removal of the 1:1 slope shoe from the paver when placing the surface course. This method had 9.0% cracked after 4 years and 100% cracked after 6 years of service.
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Corporate Authors:
Iowa Department of Transportation
800 Lincoln Way
Ames, IA United States 50010 -
Authors:
- Smith, R D
- Publication Date: 1987-1
Media Info
- Features: Appendices; Figures; Tables;
- Pagination: 11 p.
Subject/Index Terms
- TRT Terms: Asphalt pavements; Center lines; Core samples; Density; Evaluation; Improvements; Longitudinal joints; Pavement cracking; Pavement joints; Pavement performance; Paving
- Old TRIS Terms: Core density
- Subject Areas: Design; Highways; Pavements; I22: Design of Pavements, Railways and Guideways; I23: Properties of Road Surfaces;
Filing Info
- Accession Number: 00463057
- Record Type: Publication
- Files: TRIS, STATEDOT
- Created Date: Mar 31 1987 12:00AM