CURING OF CONCRETE IN PUERTO RICO

AN INVESTIGATION WAS MADE ON STRENGTH-AGE-CURING RELATIONSHIPS OF CONCRETE IN THE WARM-MOIST WEATHER OF PUERTO RICO. THE EFFECT WAS, SPECIFICALLY, A STUDY OF IRREGULARLY AND NORMAL CURING WITH WATER ON THE STRENGTH-AGE RELATIONSHIP OF CONCRETE. COMPRESSIVE STRENGTH TESTS WERE MADE ACCORDING TO THE ASTM DESIGNATION C-39-61. CONCRETE FROM 2000 PSI TO 5500 PSI SHOWED AN INCREASE IN STRENGTH WITH CURING UNDER THE CLIMATIC CONDITIONS. THE NORMAL ASTM COMPRESSIVE STRENGTH VS. AGE CURVE IN PUERTO RICO IS SIMILAR FOR TESTS PERFORMED ELSEWHERE. CONCRETE CURED DURING SEVENTEEN WEEKS UNDER ASTM NORMAL CONDITIONS SHOWED AN AVERAGE INCREASE IN STRENGTH OF 19 PERCENT OVER THE 28 DAY COMPRESSIVE STRENGTH. CONCRETE CURED IN AIR DURING 28 DAYS SHOWED AN AVERAGE COMPRESSIVE STRENGTH OF 80 PERCENT OF THE SAME CONCRETE CURED UNDER ASTM CONDITIONS FOR THE SAME PERIOD OF TIME. ALL CONCRETE TESTED SHOWED AN APPRECIABLE INCREASE IN STRENGTH WITH CURING FOR PERIODS OF ONE, TWO OR FOUR WEEKS. LOWER STRENGTH CONCRETES SHOWED A HIGHER GAIN IN STRENGTH WITH CURING THAN HIGH STRENGTH CONCRETE.

  • Supplemental Notes:
    • 26 Pp, 6 FiG, 4 TAB, 2 PHOT
  • Corporate Authors:

    University of Puerto Rico

    ,   Puerto Rico 
  • Authors:
    • Martin, I
    • Olivieri, E
  • Publication Date: 1969-6

Subject/Index Terms

Filing Info

  • Accession Number: 00213417
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Jan 12 1970 12:00AM