Size effect on the nominal strength of concrete in uniaxial tension: The effect of strain gradients
conference paper
A series of uniaxial tension experiments has been conducted to investigate the size effect on strength and fracture energy of concrete and sandstone. This paper specifically deals with the variation of the nominal strength for concrete specimens of six different sizes in a scale range of 1:32. Depending on the material and the curing conditions a stronger or weaker size effect on the nominal strength occurred in the tests. The observed size effect has to be attributed to a combination of statistical size effect and strain gradients in the cross section of the specimens, which were caused by the specimen shape, load eccentricity and material inhomogeneity.
TNO Identifier
329563
Source title
ASCE-EMD Specialty Conference, Baltimore, MD, USA, 13-16 June
Pages
1-4
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