Mechanical Properties of Steel Fiber-Reinforced Concrete

Results of an analytical assessment and experimental program on how concrete's mechanical properties are influenced by fiber addition are discussed. Regression analysis of various steel fiber-reinforced concrete mechanical properties of 60 test data resulted in the derivation of models. Various strength properties, namely strain corresponding to peak compressive stress, Poisson's ratio, modulus of elasticity, modulus of rupture and postcracking performance, split tensile strength, and cube and cylinder compressive strength, were studied. Concrete grade, namely high-strength concrete (85 MPa), moderately high strength concrete (65 MPa), and normal strength concrete (35 MPa), and fiber volume fraction (V sub f=0.0, 0.5, 1.0, and 1.5%), were the considered variables. Using the proposed models, steel fiber-reinforced concrete strength was predicted and compared with various reported test data and present study test data. Test data prediction was quite accurate using the proposed model. Results indicate that both law of mixtures-based formulations and existing models are at variance with significant contributions by the fiber matrix interaction in mechancial property enhancement caused by fiber introduction.

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  • Authors:
    • Thomas, Job
    • Ramaswamy, Ananth
  • Publication Date: 2007-5

Language

  • English

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Filing Info

  • Accession Number: 01049862
  • Record Type: Publication
  • Files: TRIS
  • Created Date: May 10 2007 9:39AM