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Title: Behavior at Cryogenic Temperatures of Steel for Concrete Reinforcement

Author(s): M. Elites, H. Comes, and J. Planas

Publication: Journal Proceedings

Volume: 83

Issue: 3

Appears on pages(s): 405-411

Keywords: cryogenics; ductility; low temperature; reinforcing steels; specifications; tension tests.

DOI: 10.14359/10441

Date: 5/1/1986

Presents new data on two commercial steels, hot-rolled and cold-stretched, used for concrete reinforcement at cryogenic temperatures. The effect of ribs, considered to dangerously raise stress at low temperatures, is analyzed as well as the influence of surface defects. Two main conclusions have been derived. One is related to the suitability of conventional reinforcing bars at low temperatures (ductility of cold-stretched steels of the type selected is greatly affected by the presence of minor surface defects at - 165 C [- 265 F], whereas hot-rolled steels performed well under the same conditions). Another conclusion is related to cryogenic temperature specifications for reinforced concrete structures and deals with elongation at failure.


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