NONDESTRUCTIVE METHODS FOR TESTING CONCRETE

THE TESTS ARE BASED ON SURFACE HARDNESS, DYNAMIC AND RADIOACTIVE METHODS. DIFFERENT METHODS OF HARDNESS TESTING ARE BRIEFLY MENTIONED AND THE SCHMIDT TEST HAMMER, BASED ON THE REBOUND PRINCIPLE, IS DESCRIBED IN DETAIL. THE CALIBRATING PROCEDURE FOR THE HAMMER IS GIVEN AND THE TEST DATA PUBLISHED BY VARIOUS RESEARCHERS ARE INCLUDED. DYNAMIC TESTS UTILIZING RESONANT FREQUENCY, MECHANICAL SONIC AND ULTRASONIC PULSE VELOCITY ARE DESCRIBED IN DETAIL. THE TEST EQUIPMENT AND THE TEST PROCEDURES FOR THESE METHODS ARE OUTLINED AND THEIR VARIOUS APPLICATIONS AND LIMITATIONS ARE DISCUSSED. A RADIOACTIVE TEST METHOD EMPLOYING X-RAY PENETRATION TESTS IS BRIEFLY MENTIONED. THE PRINCIPLE OF GAMMA RADIOGRAPHY IS GIVEN AND SOME OF ITS APPLICATIONS ARE DESCRIBED. THE MONOGRAPH CONCLUDES WITH A LIST OF 81 PERTINENT REFERENCE. /AUTHOR/

• Supplemental Notes:
  • Mines BrancH MONOGRAPH 875, 66 PP
• Corporate Authors:

  Energy, Mines & Resources Canada

  Ottawa, Ontario,   Canada 
• Authors:
  • Malhotra, V M
• Publication Date: 1968

Subject/Index Terms

• TRT Terms: Calibration; Concrete tests; Gamma rays; Hardness tests; Nondestructive tests; Radioactivity; Resonance frequency; Soil penetration test; Sonic tests; Test procedures; Testing equipment; Ultrasonic tests; X rays
• Old TRIS Terms: Sonic testing
• Subject Areas: Geotechnology; Highways; Materials;

Filing Info

• Accession Number: 00216708
• Record Type: Publication
• Files: TRIS
• Created Date: May 5 1994 12:00AM