TY - GEN
T1 - Correlation of tensile and flexural response of continuous polypropylene fiber reinforced cement composites
AU - Dey, V.
AU - Bauchmoyer, J.
AU - Pleesudjai, C.
AU - Schaef, S.
AU - Mobasher, B.
N1 - Publisher Copyright:
© 2021 American Concrete Institute. All rights reserved.
PY - 2021/2/19
Y1 - 2021/2/19
N2 - The influence of engineered hydrophilic polypropylene fibers in the formation of distributed cracking and the associated strengthening and toughening of cement-based composites under mechanical loading was studied by conducting, correlating, and modeling tensile and flexural tests. An automated filament winding system was used to manufacture continuous fiber composites. Composites with continuous fibers consisting of low modulus surface-modified hydrophilic macro-synthetic polypropylene fibers were compared for their reinforcing ability with fibrillated micro-synthetic fibers. The digital image correlation technique was used for damage characterization using quantitative analysis of crack width, spacing, and correlated with the tensile response and stiffness degradation. It was observed that the mechanical properties as well as crack-spacing and composite stiffness were significantly affected by the microstructure and dosage of continuous fibers. Procedures for correlating tension and flexural test results were introduced using closed-form solution approaches for strain hardening materials.
AB - The influence of engineered hydrophilic polypropylene fibers in the formation of distributed cracking and the associated strengthening and toughening of cement-based composites under mechanical loading was studied by conducting, correlating, and modeling tensile and flexural tests. An automated filament winding system was used to manufacture continuous fiber composites. Composites with continuous fibers consisting of low modulus surface-modified hydrophilic macro-synthetic polypropylene fibers were compared for their reinforcing ability with fibrillated micro-synthetic fibers. The digital image correlation technique was used for damage characterization using quantitative analysis of crack width, spacing, and correlated with the tensile response and stiffness degradation. It was observed that the mechanical properties as well as crack-spacing and composite stiffness were significantly affected by the microstructure and dosage of continuous fibers. Procedures for correlating tension and flexural test results were introduced using closed-form solution approaches for strain hardening materials.
KW - Constitutive Relationship
KW - Digital Image Correlation
KW - Fiber Reinforced Concrete (FRC)
KW - Filament Winding
KW - Flexural response
KW - Polypropylene Fibers
KW - Tensile response
KW - Textile Reinforced Concrete (TRC)
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UR - http://www.scopus.com/inward/citedby.url?scp=85110280508&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:85110280508
T3 - American Concrete Institute, ACI Special Publication
SP - 230
EP - 242
BT - Materials, Analysis, Structural Design and Applications of Textile Reinforced Concrete/Fabric Reinforced Cementitious Matrix
A2 - Mobasher, Barzin
A2 - Silva, Flavio de Andrade
PB - American Concrete Institute
T2 - Materials, Analysis, Structural Design and Applications of Textile Reinforced Concrete/Fabric Reinforced Cementitious Matrix at the Concrete Convention and Exposition - Fall 2019
Y2 - 20 October 2019 through 24 October 2019
ER -