NONDESTRUCTIVE TESTING FOR REPAIR AND REHABILITATION

It is described how seismic, sonic and vibration methods are used for quality assurance and forensic (nondestuctive testing and evaluation) investigation of geotechnical, pavement, and structural systems. Sonic, seismic, and vibration methods, based on the measurement of wave propagation behavior, provide data on dynamic properties that are directly and indirectly related to physical conditions of the system under test. The types of deep foundations that can be tested with the surface methods are described. The impulse response method for integrity of testing deep foundations that has been adapted for subgrade support condition evaluation of concrete slabs and pavements is described, as well as the impact echo (IE) method of sonic testing for evaluation for concrete member integrity and thickness. A seismc technique, the spectral analysis of surface waves (SASW) developed for the determination of shear modulus profiles with depth at soil sites and Young's modulus profiles at pavement sites is also described. Comments are made regarding permafrost research with the SASW method.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/oclc/4163061
• Authors:
  • Olson, L D
  • WRIGHT, C C
• Publication Date: 1990-3

Media Info

• Features: Figures; References;
• Pagination: p. 58-64
• Serial:
  • Concrete International
  • Volume: 12
  • Issue Number: 3
  • Publisher: American Concrete Institute (ACI)
  • ISSN: 0162-4075

Subject/Index Terms

• TRT Terms: Concrete; Driver rehabilitation; Foundations; Geotechnical engineering; Nondestructive tests; Pavements; Permafrost; Repairing; Seismicity; Shear modulus; Slabs; Sonics; Spectrum analysis; Structures; Vibration tests
• Candidate Terms: Spectral analysis of surface waves
• Uncontrolled Terms: Rehabilitation; Repairs; Seismic investigations
• Old TRIS Terms: Vibrational testing
• Subject Areas: Bridges and other structures; Geotechnology; Highways; Materials; Pavements; I32: Concrete;

Filing Info

• Accession Number: 00494133
• Record Type: Publication
• Files: TRIS
• Created Date: May 31 1990 12:00AM