Experimental method for investigation of impact of the addition of polymer fibers on drying shrinkage and cracking for concretes
Documentación técnica
2019-12-08
Structural Concrete
This study presents an investigation of a fiber-reinforced concrete (FRC) with use
of fibers of polypropylene, polyvinyl alcohol, and recycled polyester in the amount
of 0.50%, seeking to analyze the impact of the fiber additions on mechanical properties, drying shrinkage, and cracking. Regarding flexural strength, a reduction of
up to 25% of the value was observed for FRC. The residual strength of FRCs was
increased values 20 times higher than the reference concrete. The addition of fibers
also increased the void content of the matrices and, therefore, drying shrinkage of
the reference matrix up to 74%. The fiber additions increased the internal tensile
stresses of the FRC of up to 12.0 MPa. Besides the increase in resistance, the FRC
presented formation cracks with openings 8 times smaller than the concrete.
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Experimental method for investigation of impact of the addition of polymer fibers on drying shrinkage and cracking for concretes.pdf
Título: Experimental method for investigation of impact of the addition of polymer fibers on drying shrinkage and cracking for concretes.pdf
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Título: Experimental method for investigation of impact of the addition of polymer fibers on drying shrinkage and cracking for concretes.pdf
Tamaño: 70.12Kb
PDFLEER EN FLIP