Instantaneous crack width calculation for steel fiber-reinforced concrete flexural members

Project Details
STATE

MI

SOURCE

ACI

END DATE

03/01/18

RESEARCHERS

Amin, Ali; Gilbert, R Ian

SPONSORS

American Concrete Institute, Detroit, Michigan

KEYWORDS

Cracking; Cracking of concrete pavements; Fiber reinforced concrete; Flexure; Steel fibers; Stiffness; Highways; Materials; Pavements

LINKS

Products

Project description

A rational and simple method is presented in this paper to determine instantaneous crack widths of steel fiber-reinforced concrete members subjected to flexure. By adding fibers to concrete, the postcracking stiffness of a concrete structure can increase significantly. The model builds upon previous work conducted by the authors by considering the beneficial effect of the fibers across a crack to the tension stiffening relationship of steel fiber-reinforced concrete. The model reported herein is shown to give reliable predictions of reported experimental values.
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