PLANT-MIXED SEAL COATS IN UTAH WITH DISCUSSION

THIS REPORT DISCUSSES THE PERFORMANCE OF PLANT-MIXED SEAL COATS IN UTAH. INCLUDED IS A DISCUSSION OF THE AGGREGATE GRADATIONS AND ASPHALTIC MATERIALS USED, AND THE CONSTRUCTION PROCEDURES FOLLOWED. THE TEST PROCEDURES DESCRIBED ARE THOSE PERFORMED IN THE FIELD AND IN THE LABORATORY. FIELD TESTS INCLUDE A DETERMINATION OF THE SKID RESISTANCE AND THE RIDEABILITY OF THE SURFACE. LABORATORY TESTS INCLUDE VOIDS CONTENT, COHESION AND BONDING. THE DATA PRESENTED ARE FROM PROJECTS BUILT BETWEEN 1965 AND 1969. FROM THESE, PLANT-MIXED SEAL COATS HAVE BEEN FOUND TO PROVIDE GOOD SKID RESISTANCE AND EFFECTIVELY SEAL THE SURFACE IF THE PROPER ASPHALT CONTENT IS USED. DENSER AGGREGATE GRADATIONS HAVE GIVEN BETTER PERFORMANCE. SMOOTHER RIDING SURFACES ARE OBTAINED WITH PLANT-MIXED SEALS. REASONS FOR THE USE OF PLANTMIXED SEAL COATS ARE GIVEN AND SPECIFIC RECOMMENDATIONS FOR AGGREGATE AND ASPHALT ARE INCLUDED. A DISCUSSION IS INCLUDED WHICH DEALS WITH VARIOUS QUESTIONS CONCERNING THIS STUDY. /AUTHOR/

• Supplemental Notes:
  • 3 APP
• Authors:
  • Betenson, W B
• Conference:
  • Association of Asphalt Paving Technologists Proc
• Publication Date: 1972

Media Info

• Features: Figures; References; Tables;
• Pagination: p. 664-84
• Serial:
  • Volume: 41

Subject/Index Terms

• TRT Terms: Aggregate gradation; Asphalt content; Asphalt pavements; Bonding; Cohesion; Construction management; Field tests; Laboratory tests; Plant mix; Riding qualities; Seal coats; Skid resistance; Void ratios
• Old TRIS Terms: Void
• Subject Areas: Construction; Highways; Maintenance and Preservation; Materials;

Filing Info

• Accession Number: 00211828
• Record Type: Publication
• Files: TRIS
• Created Date: Sep 17 2002 12:00AM