FraMCoS 5 2004 Vail, Colorado, USA

Size Effect in ECC Structural Members in Flexure

The presence and severity of size effect in ECC structurally sized members in flexure is examined. High tensile strain capacity, fracture toughness, and characteristic length make ECC an ideal material for preventing brittle failures responsible for size effects present in…

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Year 2004
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Abstract

The presence and severity of size effect in ECC structurally sized members in flexure is examined. High tensile strain capacity, fracture toughness, and characteristic length make ECC an ideal material for preventing brittle failures responsible for size effects present in concrete members. The primary focus of this study is the structural implications of size effect in ECC and steel reinforced ECC (R/ECC) members. Seven series of beam specimens fabricated of reinforced concrete, ECC, and R/ECC are tested in flexure to determine the severity of size effect. Test results of structurally sized members are presented. In this paper, special attention is given to the relationship between ECC ductility, quantified as tensile strain capacity, and the severity of size effect in these members is addressed.