EFFECTS OF MINERAL FILLERS IN SLURRY SEAL MIXTURES /WITH DISCUSSION/

SLURRY SEAL COATS HAVE BECOME USEFUL IN MAINTENANCE OPERATIONS DURING THE PAST FEW YEARS, HOWEVER, TECHNOLOGY HAS LAGGED CONSTRUCTION KNOWLEDGE. PRESENT SPECIFICATIONS FOR SLURRY SEALS GENERALLY CONSTITUTE AN EMPIRICAL PROPORTIONING OF COMPONENTS RATHER THAN A DESIGN. THE PRIMARY OBJECTIVES OF THIS RESEARCH WERE /A/ TO DETERMINE THE EFFECT OF MINERAL FILLER /A COMMON ADDITIVE/ AND RESIDUAL ASPHALT CONTENT ON THE SLURRY SEAL MIXTURE, /B/ TO EVALUATE A NEW SLURRY SEAL TESTING MACHINE, AND /C/ TO DEVELOP A METHOD OF DESIGN. A METHOD WAS DEVELOPED FOR ESTIMATING THE OPTIMUM EMULSION CONTENT SO THAT FILLER EFFECTS COULD BE STUDIED AT THE SAME LEVEL OF DESIGN. OPERATING AND TESTING PROCEDURES WERE CAREFULLY EVALUATED FOR APPLICABILITY, AND THE VARIABLES OF THIS TESTING PROCEDURE WERE STANDARDIZED FOR THE ENSUING SLURRY SEAL RESEARCH PROGRAM. THE OBJECTIVES WERE EVALUATED FROM THE TEST RESULTS AND FROM VISUAL INSPECTIONS OF THE SPECIMENS. THE TEST VARIABLES, ABRASION, SHOVING AND RELATIVE THICKNESS, WERE CORRELATED WITH A VISUAL RATING SYSTEM. THE DATA SHOW THAT' /A/ ABRASION IS THE BEST MEASURE TO CONSIDER WHEN EVALUATING A SLURRY SEAL MIXTURE, /B/ LIMESTONE DUST AND CEMENT WERE BETTER FILLERS FOR USE WITH ROCKDALE SLAG AGGREGATE, /C/ CEMENT AND FLY ASH WERE MORE SUITABLE WITH CONCRETE SAND MIXTURES; AND /D/ THE DESIGN EQUATION FOR PREDICTING THE OPTIMUM RESIDUAL ASPHALT CONTENT WAS VALID FOR SLURRY SEAL MIXTURES WHEN TESTED IN THE YOUNG WET TRACK ABRASION DEVICE. /AUTHOR/

Media Info

  • Media Type: Print
  • Features: Appendices; Figures; References; Tables;
  • Pagination: pp 36-59
  • Monograph Title: Surface treatments, bituminous mixtures and pavements
  • Serial:

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Filing Info

  • Accession Number: 00210279
  • Record Type: Publication
  • Files: TRIS, TRB
  • Created Date: Oct 20 1994 12:00AM