INSTANTANEOUS DETECTION AND MECHANICAL BEHAVIOR OF MICROCRACKING IN CONCRETE

Investigations of microcracking in concrete specimens were made by detecting elastic waves as signals of cracking by means of a crystal microphone under simple compression, sustained compression and flexure. The cracking occurred at a load much less than that generally recognized. Under short time sustained load, cracking signals increased abruptly at 85 percent of the ultimate load, which corresponds to a critical point in creep of concrete. /Author/

• Corporate Authors:

  Society of Materials Science

  1 Yoshida Izumidono-cho, Sakyo-Ku
  Kyoto 600,   Japan 
• Authors:
  • Yokomichi, H
  • Fujii, T
• Conference:
  • Mechanical Behavior of Materials, Proceedings of
• Publication Date: 1972

Language

• English

Media Info

• Features: Figures; Photos; References;
• Pagination: p. 125-131
• Serial:
  • Issue Number: 4

Subject/Index Terms

• TRT Terms: Compression; Concrete; Cracking; Creep; Detection and identification; Detectors; Flexure; Loads; Mechanical elasticity; Microcracking; Sound; Sound
• Uncontrolled Terms: Concrete cracking
• Old TRIS Terms: Concrete creep
• ITRD Terms: 5532: Compression; 4755: Concrete; 8525: Conference; 5211: Cracking; 4732: Creep (mater); 5586: Deflection; 5912: Elasticity; 8053: Japan; 5567: Load
• Subject Areas: Highways; Materials;

Filing Info

• Accession Number: 00083759
• Record Type: Publication
• Source Agency: Transport and Road Research Laboratory (TRRL)
• Report/Paper Numbers: Conf Paper
• Files: ITRD, TRIS
• Created Date: Apr 22 1975 12:00AM