Abstract
This study describes the ability of different test methods to measure the toughness of glass-fiber reinforced concrete (GFRC) composites. The three loading configurations used were: uniaxial tensile, third-point flexural, and instrumented impact. Fracture was observed to be dependent on the specimen geometry; loading geometry; gage length used; strain rate; and the extent of accelerated aging. Assuming that the local tensile stress-strain response can be expressed in the form of a bilinear ascending portion and an exponentially descending portion, both gage-length effects and loading geometry effects can be predicted. Using the analytical tensile stress-strain response, the experimentally observed flexural load-deflection and toughness were predicted.
Original language | English (US) |
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Pages (from-to) | 448-458 |
Number of pages | 11 |
Journal | ACI Materials Journal |
Volume | 86 |
Issue number | 5 |
State | Published - Sep 1 1989 |
Externally published | Yes |
ASJC Scopus subject areas
- Civil and Structural Engineering
- Building and Construction
- General Materials Science