EFFECT OF HIGH-INTENSITY SUSTAINED TRIAXIAL STRESSES ON THE MECHANICAL PROPERTIES OF PLAIN CONCRETE
An experimental research programme was carried out to investigate the effects of high-intensity prolonged triaxial stresses on the strength and stiffness properties of concrete. The specimens tested were subjected to constant stresses equal to 90 or 95% of the failure stress deviator under monotonic loading in different deviatoric planes. The stiffness properites of the specimens were evaluated at different time intervals. The decrease in shear modulus was taken as a measure of the creep-induced damage. The specimens which did not fail at constant stress within five days were unloaded and monotonically reloaded to failure. For the specimens tested at the lower stress, damage tends to stabilize after the early stage at constant load, whereas, for the tests performed at the higher stress, damage seems to keep on increasing for the entire duration of the creep test. The strength of the specimens surviving the creep tests was found to increase moderately with respect to the control samples, with the failure envelope of the material being dependent on the hydrostatic creep stress. (A)
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Availability:
- Find a library where document is available. Order URL: http://worldcat.org/issn/00249831
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Corporate Authors:
Thomas Telford Limited
London, United Kingdom -
Authors:
- TALIERCIO, ALF BERRA
- Publication Date: 1999-12
Language
- English
Media Info
- Features: References;
- Pagination: p. 437-47
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Serial:
- MAGAZINE OF CONCRETE RESEARCH
- Volume: 51
- Issue Number: 6
- Publisher: Thomas Telford Limited
- ISSN: 0024-9831
Subject/Index Terms
- TRT Terms: Concrete; Continuous structures; Stresses; Triaxial shear tests
- ITRD Terms: 4755: Concrete; 9006: Continuous; 5575: Stress (in material); 5566: Triaxial
- Subject Areas: Bridges and other structures;
Filing Info
- Accession Number: 00780920
- Record Type: Publication
- Source Agency: Transport Research Laboratory
- Files: ITRD
- Created Date: Jan 7 2000 12:00AM