LEAN MIX CONCRETE BASE WIDENING

AN EXPERIMENT WAS ESTABLISHED IN 1951 ON A TYPICAL WIDENING AND RESURFACING PROJECT TO DETERMINE WHETHER PORTLAND CEMENT CONCRETE WIDENING STRIPES WITH CEMENT CONTENTS LOWER THAN THAT CONSIDERED STANDARD FOR REGULAR PAVING CONCRETE WOULD SERVE ADEQUATELY UNDER DENSE GRADED BITUMINOUS CONCRETE RESURFACINGS. CEMENT FACTORS OF 1.31, 1.19, AND 1.07 WER USED IN ADDITION TO THE ILLINOIS STANDARD OF 1.42 FOR PAVEMENT CONCRETE CONSTRUCTED WITH THE AGGREGATES USED ON THIS PROJECT. CONDITION SURVEYS WERE MADE PERIODICALLY DURING THE 14 YEARS IN WHICH THE PAVEMENT SERVED BEFORE A SECOND RESURFACING WAS PLACED FOR DIFFERENCES IN PAVEMENT PERFORMANCE ATTRIBUTABLE TO VARIATIONS IN THE CEMENT CONTENTS OF WIDENING STRIPS. THIS EVIDENCE SUGGESTS THAT CEMENT CONTENTS CAN BE REDUCED WHERE ENVIRONMENTAL CONDITIONS ARE NO MORE SEVERE THAN THOSE TO WHICH THE EXPERIMENTAL SITE WAS EXPOSED. /AUTHOR/

  • Supplemental Notes:
    • R and D RepT RDR-28, 26 PP
  • Corporate Authors:

    Illinois Department of Transportation

    Division of Highways, 2300 South Dirksen Parkway
    Springfield, IL  United States  62764
  • Publication Date: 1970-9

Subject/Index Terms

Filing Info

  • Accession Number: 00213891
  • Record Type: Publication
  • Files: TRIS
  • Created Date: May 16 1971 12:00AM