Test parameters for evaluating toughness of glass-fiber reinforced concrete panels

Barzin Mobasher, Surendra P. Shah

Research output: Contribution to journalArticlepeer-review

44 Scopus citations


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 languageEnglish (US)
Pages (from-to)448-458
Number of pages11
JournalACI Materials Journal
Issue number5
StatePublished - Sep 1 1989
Externally publishedYes

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Building and Construction
  • Materials Science(all)


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