THE EFFECT OF STEAM CURING AT ATMOSPHERIC PRESSURE ON THE IMPACT RESISTANCE OF CONCRETE MADE WITH AN ORDINARY PORTLAND CEMENT

THE BALLISTIC PENDULUM IMPACT TEST HAS SHOWN THAT THE EFFECT OF STEAM CURING AT ATOMOSPHERIC PRESSURE ON THE IMPACT RESISTANCE OF CONCRETE MADE WITH AN ORDINARY PORTLAND CEMENT DEPENDS ON THE STEAM CURING CYCLE EMPLOYED. A RAPID RATE OF RISE IN TEMPERATURE IS EMPLOYED, AND STEAM CURING IS CONCLUDED IN EVERY CASE AT APPROXIMATELY 16 HOURS FROM THE TIME OF CASTING. UNDER THESE CONDITIONS MAXIMUM CURING TEMPERATURES OF 60 DEGREES C AND 80 DEGREES C GENERALLY GAVE IMPACT RESISTANCE AT 28 DAYS AT LEAST AS HIGH AS THAT OF CONCRETE CURED AT NORMAL TEMPERATURE. A LOWER IMPACT RESISTANCE WAS OBTAINED WITH CUBES CURED AT A MAXIMUM TEMPERATURE OF 95 DEGREES C. A CORRELATION WAS FOUND TO EXIST BETWEEN IMPACT RESISTANCE AND COMPRESSIVE STRENGTH. /A/RRL/

  • Supplemental Notes:
    • 6 Pp, 3 Fig, 1 TAB, 5 PHOT, 3 REF
  • Corporate Authors:

    S Afr Council Sci Indus Res Nat Rd Inst

    ,    
  • Authors:
    • Keene, P W
  • Publication Date: 1968

Subject/Index Terms

Filing Info

  • Accession Number: 00213013
  • Record Type: Publication
  • Source Agency: Road Research Laboratory /UK
  • Files: TRIS
  • Created Date: Oct 5 1970 12:00AM