LONGITUDINAL JOINT CONSTRUCTION IN ASPHALT CONCRETE PAVEMENTS. TECHNICAL REPORT

The New York State Department of Transportation initiated research into the construction of longitudinal joints in asphalt pavements during the 1990 construction season. The purpose of this research effort was to determine if the Department's current specification governing longitudinal joint construction is producing acceptable results. In addition, this research sought to identify new techniques which may improve the Department's current jointing procedures. It was found that, when the currently specified longitudinal joint procedures are enforced, adequate joint densities are produced. Regarding the construction of longitudinal joints in asphalt pavements, it was found that: (1) it is important to leave extra asphalt concrete along the joint; (2) it is important to overlap the existing lane during placement of the new lane; (3) compacting the joint statically with the roller predominately on the hot mat produced higher joint densities; (4) the method of rolling had a larger impact on improving density than the method of mounding extra material; (5) the AW-2R screed attachment is capable of forming extra material along the longitudinal joint; (6) the side to side alignment of the paver becomes critical when using the AW-2R screed attachment; and (7) the Troxler 4640 Thin Lift nuclear gauge provides quick density results in the back scatter mode, but the results varied from pavement core densities. Further conclusions from this research are included in this report, along with recommendations for future research.

• Corporate Authors:

  New York State Department of Transportation

  Materials Bureau, 1220 Washington Avenue
  Albany, NY  United States  12232
• Authors:
  • Bernard, D W
  • Grainer, M T
• Publication Date: 1991-1

Media Info

• Features: Appendices; Figures;
• Pagination: 23 p.

Subject/Index Terms

• TRT Terms: Asphalt concrete; Construction; Density; Future; Hot rolling; Longitudinal joints; Nuclear gauges; Research; Screeds; Specifications
• Uncontrolled Terms: Construction specifications; Future research; Hot rolled asphalt
• Subject Areas: Construction; Highways; Research; I52: Construction of Pavements and Surfacings;

Filing Info

• Accession Number: 00608505
• Record Type: Publication
• Report/Paper Numbers: Tech Rept 91-1
• Files: TRIS, STATEDOT
• Created Date: May 31 1991 12:00AM