COMPARISON OF RESULTS OF THREE METHODS FOR DETERMINING YOUNG'S MODULUS OF ELASTICITY OF CONCRETE

THE ELASTIC RESPONSE OF CONCRETE TO STATIC, RESONANCE, AND PULSE VELOCITY TESTS IS DISCUSSED. BECAUSE OF THE WIDE VARIATIONS IN STATIC TESTING TECHNIQUES AND THE HETEROGENEITY OF CONCRETE, THE RESULTS OF YOUNG'S MODULUS CALCULATED FROM THE THREE METHODS DO NOT NECESSARILY AGREE. THE PULSE VELOCITY METHOD HAS ADVANTAGES OVER THE OTHER TWO IN THAT TESTING IS NOT CONFINED TO REGULARLY-SHAPED LABORATORY SPECIMENS, AND RESULTS ARE FREE FROM INELASTIC EFFECTS. THE METHOD, HOWEVER, HAS SEVERE LIMITATIONS: IT IS SO AFFECTED BY THE HETEROGENEITY OF CONCRETE THAT CALCULATIONS OF YOUNG'S MODULUS ARE DISCOURAGED, AND IT IS NOT SENSITIVE TO SMALL CHANGES IN THE PASTE COMPONENT OF CONCRETE. /PCA/

• Authors:
  • PHILLEO, R E
• Publication Date: 0

Media Info

• Serial:
  • Portland Cement Assoc R & D Lab Bull
  • Issue Number: 0

Subject/Index Terms

• TRT Terms: Alternatives analysis; Concrete tests; Modulus of elasticity; Pulses; Static tests; Test procedures; Velocity
• Uncontrolled Terms: Pulse velocity
• Subject Areas: Highways; Materials;

Filing Info

• Accession Number: 00213505
• Record Type: Publication
• Source Agency: Portland Cement Association
• Report/Paper Numbers: No 56
• Files: TRIS
• Created Date: May 25 1970 12:00AM