ESTIMATION OF STRENGTH GAIN OF CONCRETE

EXAMINATION OF RECENT LITERATURE WOULD INDICATE THAT THERE IS PRACTICAL USEFULNESS TO BE FOUND IN THE NURSE-SAUL MATURITY FUNCTION IN CALCULATION OF STRENGTHS OF CONCRETE, PARTICULARLY WHERE TEMPERATURES ARE LOW OR VARIABLE. THE FUNCTION CAN BE IMPROVED BY MODIFICATIONS TO FIT PARTICULAR CONCRETE CURVES OR PARTS OF SUCH CURVES. THE QUANTITATIVE VALUE OF CALCULATED STRENGTHS IS IMPROVED AS THE ACCURACY OF TEMPERATURES AND PLACING TIMES IS IMPROVED. THE MATURITY FUNCTION IS GIVEN A SEVERE TEST IN THE FIELD CASE DESCRIBED. DESPITE A LACK OF MUCH PERTINENT INFORMATION, AND THE MANY ASSUMPTIONS THAT HAD TO BE MADE AS A CONSEQUENCE, THE STRENGTH OF VALUES PREDICTED BY THIS FUNCTION SHOWED GOOD CORRELATION WITH CORE STRENGTHS AT THE AGE OF TEST. IT WAS THUS POSSIBLE TO PREDICT STRENGTHS AT ANOTHER AGE WITH A HIGH DEGREE OF CONFIDENCE. /CGRA/RRL/

  • Supplemental Notes:
    • No 258, 8 PP, 3 FIG, 6 TAB, 14 REF
  • Corporate Authors:

    Nrc Div Bldg Research /Can

    ,    
  • Authors:
    • Swenson, E G
  • Publication Date: 1967-10

Subject/Index Terms

Filing Info

  • Accession Number: 00212981
  • Record Type: Publication
  • Source Agency: Road Research Laboratory /UK
  • Files: TRIS
  • Created Date: Apr 9 1971 12:00AM