STUDY OF LONGITUDINAL JOINT CONSTRUCTION IN BITUMINOUS CONCRETE PAVEMENTS

THE PURPOSE WAS TO STUDY AND EVALUATE SEVERAL DIFFERENT TYPES OF JOINT CONSTRUCTION TECHNIQUES. ONLY COLD FACE JOINT CONSTRUCTON WAS USED, WITH THE ROLLING TECHNIQUE VARIED IN THE SECOND PLACED LANE, TO GIVE THREE METHODS OF JOINT CONSTRUCTION: THE LAP JOINT, PINCHED JOINT AND THE FORCED JOINT. THE EVALUATION OF THE TEST DATA SHOWS THAT THERE IS NO SUPERIOR ROLLING METHODS, AS ALL APPEAR TO BE EQUAL IN THE APPLICATION OF END RESULTS. TEST RESULTS SHOWED VARIATIONS IN THE DENSITY WITHIN EACH LANE OF EACH TEST SITE. IN ALL CASES DENSIFICATION PROPERTIES IN THE IMMEDIATE JOINT AREA REFLECTED LOWER DENSITY PROPERTIES THAN ADJACENT AREAS. THERE IS EVIDENCE HOWEVER, THAT THE CONSTRUCTION DURING AND AFTER RESEARCH IMPLEMENTATION AND DIRECTION WAS SUPERIOR TO THE QUALITY OF THE CONSTRUCTION PRIOR TO THE IMPLEMENTATION OF THIS PROJECT. THEREFORE, IT MAY BE SAID THAT IMPROVED JOINT CONSTRUCTION MAY BE OBTAINED THROUGH THE USE OF ADDITIONAL CARE IN THE FIELD. IT IS ALSO FELT THAT PRESENT TEST METHODS ARE NOT TRUE PERFORMANCE INDICATORS OF THE LONGITUDINAL JOINTS AS VISUAL EXAMINATION OVER PERIODS OF EXPOSURE UP TO FIVE YEARS REFLECT SATISFACTORY CONSTRUCTION. /AUTHOR/

Subject/Index Terms

Filing Info

  • Accession Number: 00214522
  • Record Type: Publication
  • Source Agency: Federal Highway Administration
  • Report/Paper Numbers: No Aw-71-60-46
  • Files: TRIS, USDOT, STATEDOT
  • Created Date: Feb 8 1972 12:00AM