AN EVALUATION OF FACTORS AFFECTING THE TENSILE PROPERTIES OF ASPHALT-TREATED MATERIALS

THE INDIRECT TENSILE TEST WAS USED TO EVALUATE FACTORS WHICH AFFECT THE TENSILE PROPERTIES OF ASPHALT-TREATED MATERIALS. EIGHT FACTORS WERE EVALUATED AT TWO LEVELS IN A 1/4 REPLICATE OF A FULL FACTORIAL STATISTICAL DESIGN. THE FACTORS INVESTIGATED INCLUDED AGGREGATE TYPE, AGGREGATE GRADATION, ASPHALT VISCOSITY, ASPHALT CONTENT, COMPACTION TYPE, MIXING TEMPERATURE, COMPACTION TEMPERATURE, AND CURING TEMPERATURE. THE TEST PARAMETERS USED AS INDICATORS OF THE MATERIALS' TENSILE PROPERTIES WERE INDIRECT TENSILE STRENGTH AND HORIZONTAL FAILURE DEFORMATION. AN ANALYSIS OF VARIANCE WAS CONDUCTED TO DETERMINE THE SIGNIFICANCE OF THE EFFECTS OF ALL MAIN FACTORS, TWO-WAY INTERACTIONS, AND CERTAIN THREE-WAY INTERACTIONS ON THE TEST PARAMETERS. TABLES SHOWING THE ORDER OF SIGNIFICANCE AS WELL AS PLOTS INDICATING THE EFFECTS OF THOSE FACTORS AND INTERACTIONS SIGNIFICANT AT AN ALPHA LEVEL OF 0.01 ARE PRESENTED IN THE ACTIONS SIGNIFICANT AT AN ALPHA LEVEL OF 0.05 OR GREATER TO OBTAIN PREDICTIVE EQUATIONS FOR BOTH OF THE TEST PARAMETERS. THESE REGRESSION EQUATIONS ALONG WITH THEIR REGRESSION COEFFICIENTS AND STANDARD ERRORS OF ESTIMATE ARE PRESENTED IN THE REPORT. /AUTHOR/

  • Supplemental Notes:
    • Res Rept 98-2, 113 PP, 43 FIG, 15 TAB, 92 REF, 3 APP
  • Corporate Authors:

    University of Texas, Austin

    Center for Highway Research, 200 West 21st Street
    Austin, TX  United States  78712
  • Authors:
    • Hadley, W O
    • Hudson, W R
    • Kennedy, T W
  • Publication Date: 1969-3

Subject/Index Terms

Filing Info

  • Accession Number: 00211555
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Oct 5 1970 12:00AM