Correlation of tensile and flexural response of continuous polypropylene fiber reinforced cement composites

V. Dey, J. Bauchmoyer, C. Pleesudjai, S. Schaef, B. Mobasher

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

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.

Original languageEnglish (US)
Title of host publicationMaterials, Analysis, Structural Design and Applications of Textile Reinforced Concrete/Fabric Reinforced Cementitious Matrix
EditorsBarzin Mobasher, Flavio de Andrade Silva
PublisherAmerican Concrete Institute
Pages230-242
Number of pages13
ISBN (Electronic)9781641951333
StatePublished - Feb 19 2021
Externally publishedYes
EventMaterials, Analysis, Structural Design and Applications of Textile Reinforced Concrete/Fabric Reinforced Cementitious Matrix at the Concrete Convention and Exposition - Fall 2019 - Cincinnati, United States
Duration: Oct 20 2019Oct 24 2019

Publication series

NameAmerican Concrete Institute, ACI Special Publication
VolumeSP-345
ISSN (Print)0193-2527

Conference

ConferenceMaterials, Analysis, Structural Design and Applications of Textile Reinforced Concrete/Fabric Reinforced Cementitious Matrix at the Concrete Convention and Exposition - Fall 2019
Country/TerritoryUnited States
CityCincinnati
Period10/20/1910/24/19

Keywords

  • Constitutive Relationship
  • Digital Image Correlation
  • Fiber Reinforced Concrete (FRC)
  • Filament Winding
  • Flexural response
  • Polypropylene Fibers
  • Tensile response
  • Textile Reinforced Concrete (TRC)

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Building and Construction
  • Materials Science(all)

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