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Numerical Simulation on Projectile Penetrating Wedge Concrete
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Polypropylene Fiber Reinforced Concrete for Airfield Pavements:Modeling of Stress-Strain Curve Under Compression
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Polypropylene Fiber Reinforced Concrete for Airfield Pavements:Modeling of Stress-Strain Curve Under Compression

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Abstract:

An analytical model for compressive stress-strain curve of polypropylene fiber reinforced concrete (PPFRC) was proposed. The polypropylene fiber used was 60-mm long twisted fiber with aspect ratio of 120. The fiber was added in three volume fractions 0.2%, 0.4% and 0.6%. Tow concrete mixtures with varying water-cement ratio were used. The accuracy of the proposed model was evaluated by comparing the area under stress-strain curves for experimental and analytical model. The results showed good agreement between the experimental and analytical curves. In addition; empirical equations were proposed to quantify the effect of polypropylene fiber on compressive strength, strain at peak stress, and toughness of concrete in terms of fiber volume fraction.

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Periodical:

Advanced Materials Research (Volumes 261-263)

Pages:

171-177

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.261-263.171

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Online since:

May 2011

Authors:

Tammam Merhej, De Cheng Feng

Keywords:

Airfield Concrete Pavements, Polypropylene Fiber Reinforced Concrete, Stress-Strain Curve

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© 2011 Trans Tech Publications Ltd. All Rights Reserved

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