FIELD AND LABORATORY STUDIES OF CONCRETE MIXES FOR THE WAHOO-LINCOLN PAVING -PROJECT

THE RESULTS ARE GIVEN OF TESTS ON TWO EXPERIMENTAL SECTIONS OF CONCRETE PAVEMENT CONSTRUCTED ON PROJECT F-155 /5/, WAHOO-LINCOLN, DURING THE SUMMER OF 1947. CONCRETE BEAMS REPRESENTING THE PAVEMENT SECTIONS WERE MADE IN THE LABORATORY IN 1951. THESE WERE SUBJECTED TO FOUR LABORATORY EXPOSURES AND ONE OUTDOOR EXPOSURE. THE AGGREGATE USED CONSISTED OF APPROXIMATED 30 PERCENT LIMESTONE AND 70 PERCENT SAND-GRAVEL. TWO BRANDS OF TYPE I CEMENT WERE USED TO DETERMINE THE EFFECT OF EACH BRAND ON PROPERTIES OF NEBRASKA CLASS 47B CONCRETE. THE LIMESTONE USED ON THIS PROJECT WAS FOUND TO BE UNSATISFACTORY IN FREEZING AND THAWING. IT IS NO LONGER USED IN NEBRASKA HIGHWAY CONSTRUCTION. ALTHOUGH SEVERE DAMAGE FROM FREEZING AND THAWING HAS OCCURRED, NO EVIDENCE OF EXPANSION DUE TO CEMENT -AGGREGATE REACTION WAS OBSERVED. THIS LONG TIME STUDY IS FURTHER PROOF THAT CLASS 47B CONCRETE HAS THE ABILITY TO CONTROL CEMENT-AGGREGATE REACTION. HAD A GOOD QUALITY LIMESTONE BEEN USED, IT IS DOUBTFUL IF ANY DIFFERENCE COULD BE FOUND DUE TO BRAND OF CEMENT.

  • Supplemental Notes:
    • Hpr-1 /3/, F-155 /5/, 63-8, C-3
  • Corporate Authors:

    Nebraska Department of Roads

    1500 Highway 2, P.O. Box 94759
    Lincoln, NE  United States  68509
  • Publication Date: 1965-10

Subject/Index Terms

Filing Info

  • Accession Number: 00211986
  • Record Type: Publication
  • Files: TRIS, STATEDOT
  • Created Date: Feb 1 1994 12:00AM