ULTRASONIC MEASUREMENTS ON REINFORCED GRAVEL-AGGREGATE CONCRETES

POSSIBLE APPLICATION OF MEASUREMENTS OF ULTRASONIC PULSE VELOCITY AS A TEST METHOD FOR PRACTICAL CASES IN CONCRETE BUILDING IS BEING INVESTIGATED. RESEARCH WORK IS ESPECIALLY AIMED AT THE USEFULNESS OF THE VARIATION OF MEASURED VALUES FOR ESTIMATING THE CRACK STATE OF A CONSTRUCTION. A DISTINCT AND REPRODUCIBLE DEPENDENCY OF THE VARIATION OF TEST DATA ON THE DEGREE OF PRE-LOAD WAS ESTABLISHED WITH 27 GRAVEL- AGGREGATE HEAVY-WEIGHT CONCRETES OF DIFFERENT COMPOSITION. THE INVESTIGATIONS HAVE BEEN EXTENDED TO DIFFERENT TRANSVERSAL REINFORCEMENT CONTENTS. WITHIN THE RANGE UP TO 7% TRANSVERSAL STEEL III REINFORCEMENT THERE WAS A SLIGHT INFLUENCE OF THE REINFORCEMENT ON THE ABSOLUTE VALUES OF PULSE VELOCITY MEASURED. NEVERTHELESS, THE CHARACTERISTIC DEPENDENCY OF TEST DATA VARIATION ON THE CRACK STATE COULD BE FULLY ESTABLISHED FOR THIS WHOLE RANGE. /AUTHOR/

  • Supplemental Notes:
    • Vol 9, No 3, PP 81-85
  • Authors:
    • Kordina, K
    • Roy, V
    • WAUBKE, N V
  • Publication Date: 1967-3

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  • Accession Number: 00212399
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Jul 7 1994 12:00AM