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Title |
Evaluation of Stress-Strain Relationship and Elastic Modulus Equation of Steel Fiber Reinforced High-Strength Concrete
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Keywords |
steel fiber reinforced high-strength concrete; volume fraction and aspect ratio of steel fiber; stress-strain relationship; elastic modulus; design strength |
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Abstract |
In this study, the compression test of steel fiber reinforced high-strength concrete have been performed with varying strengths and volume factions of steel fiber. Three types of matrices including low strength concrete( c'=30 MPa), medium strength concrete( c'=50 MPa), and high strength concrete( c'=70 MPa) were selected. Five types of fiber fractions were studied including 0.0%, 0.5%, 0.75%, 1.0%, and 1.5% by volume. From the results of the compressive strength test, the post-peak characteristics of the stress-strain relationship were investigated, and the existing equations to predict the elastic modulus were experimentally evaluated.
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