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Title: Behaviour of high strength concrete under bending and compression

Author(s): Arenas de Pablo, J.J.; Gutiérrez Martín, G.; Vicente Cabrera, M.A.; González Cabrera, D.C.

Publication: ACHE

Volume: 55

Issue: 232

Appears on pages(s): 19 - 28

Keywords:

DOI:

Date: 1/3/2004

Abstract:
This paper describes computerized closed-loop testing facility that was developed to experimentally obtain the stress distribution in concretes of different strength, including high strength concretes. Using the closed loop computerized testing facility 240 test specimens were tested to failure under increasing eccentrically load. The test variables were geometry or shape of specimens, age at testing and the concrete strength. On the basis of results, it is concluded that it is not possible to define a unique stress-strain diagram satisfying simultaneously the two equilibrium conditions at any given stage of loading. It is further concluded that the shape of the concrete compression zone and the maximum useable strain depend upon the cross-section shape of the specimen.


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