RADAR ASSESSMENT OF POST-TENSIONED CONCRETE
Subsurface radar has become an established investigative tool for assessment of concrete structures. It has proved useful for locating metal post-tensioning ducts in prestressed concrete but is unable to detect grouting deficiencies within these ducts. The use of non-metallic ducts has been suggested for new construction which might facilitate insitu condition monitoring, and a preliminary programme of work has been undertaken to assess the capabilities of radar when plastic ducts are used. The study comprises laboratory tests using commercially available field testing equipment undertaken in a simulation tank and on concrete specimens, supported by finite element and finite difference computer models. Prospects for field applications of radar to inspection of post-tensioned bridges are considered in the light of the results obtained. For the covering abstract see ITRD E111699.
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Availability:
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Corporate Authors:
ENGINEERING TECHNICS PRESS
46 CLUNY GARDENS
EDINBURGH, United Kingdom EH10 6BN -
Authors:
- Bungey, J H
- Millard, S G
- SHAW, M R
- Conference:
- Publication Date: 1997
Language
- English
Media Info
- Features: References;
- Pagination: p. 331-9
Subject/Index Terms
- TRT Terms: Bridges; Conferences; Evaluation and assessment; Grout; Posttensioning; Prestressed concrete; Radar; Surveillance; Test procedures
- ITRD Terms: 3455: Bridge; 8525: Conference; 9020: Evaluation (assessment); 4729: Grout; 4789: Post tensioning; 4796: Prestressed concrete; 6738: Radar; 9101: Surveillance; 6288: Test method
- Subject Areas: Bridges and other structures;
Filing Info
- Accession Number: 00824049
- Record Type: Publication
- Source Agency: Transport Research Laboratory
- ISBN: 0-947644-32-0
- Files: ITRD
- Created Date: Feb 6 2002 12:00AM