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/

• Record URL:
  http://onlinepubs.trb.org/Onlinepubs/hrr/1965/104/104-003.pdf
• Supplemental Notes:
  • Distribution, posting, or copying of this PDF is strictly prohibited without written permission of the Transportation Research Board of the National Academy of Sciences. Unless otherwise indicated, all materials in this PDF are copyrighted by the National Academy of Sciences. Copyright © National Academy of Sciences. All rights reserved.
• Authors:
  • Harper, William J
  • Jimenez, Rudolf A
  • Gallaway, Bob M
• Discussers:
  • Campen, W H
  • Harper, William J
  • Jimenez, Rudolf A
  • Gallaway, Bob M
• Publication Date: 1965

Media Info

• Media Type: Digital/other
• Features: Appendices; Figures; References; Tables;
• Pagination: pp 36-59
• Monograph Title: Surface treatments, bituminous mixtures and pavements
• Serial:
  • Highway Research Record
  • Issue Number: 104
  • Publisher: Highway Research Board

Subject/Index Terms

• TRT Terms: Abrasions; Asphalt content; Design; Development; Emulsions; Evaluation; Mineral fillers; Mixtures; Plastic deformation; Seal coats; Slurry seals; Specimens; Testing equipment; Thickness
• Uncontrolled Terms: Design criteria
• Subject Areas: Design; Geotechnology; Highways; Materials;

Filing Info

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