FINAL REPORT ON SHRINKAGE-CRACKING CHARACTERISTICS OF STRUCTURAL LIGHTWEIGHT CONCRETE

STRUCTURAL LIGHTWEIGHT CONCRETE, MADE WITH TWO TYPES OF COARSE AGGREGATE AND WITH CEMENT (I AND III) WERE SUBJECTED TO TWO CURING PERIODS FOLLOWED BY A PROLONGED EXPOSURE IN A 140 F - 25 PERCENT RELATIVE HUMIDITY ENVIRONMENT. UNRESTRAINED DRYING SHRINKAGE AND RESTRAINED CRACKING WERE DETERMINED. SIGNIFICANT FINDINGS INCLUDED (1) PROLONGING MOIST CURING RESULTED IN A MARKED REDUCTION IN DRYING SHRINKAGE, (2) ALTHOUGH THE USE OF TYPE III CEMENT RESULTED IN LESS UNRESTRAINED DRYING SHRINKAGE, IT CAUSED MORE RESTRAINED CRACKING AND (3) THE COMPLETE ELIMINATION OF CHRINKAGE CRACKS APPEARS TO BE PRACTICALLY IMPOSSIBLE. /AUTHOR/

  • Corporate Authors:

    Texas Transportation Institute

    Texas A&M University System, 1600 E Lamar Boulevard
    Arlington, TX  USA  76011

    Texas State Department of Highways & Public Transp

    11th and Brazos Streets
    Austin, TX  USA  78701

    Federal Highway Administration

    1200 New Jersey Avenue, SE
    Washington, DC  USA  20590
  • Authors:
    • Ledbetter, W B
    • NICHOLS, G
  • Publication Date: 0

Subject/Index Terms

Filing Info

  • Accession Number: 00212092
  • Record Type: Publication
  • Source Agency: Federal Highway Administration
  • Files: TRIS, USDOT, STATEDOT
  • Created Date: Mar 7 1971 12:00AM