Study on fiber hybridization effect of engineered cementitious composites with low- and high-modulus polymeric fibers. (1st June 2016)

• Record Type: Journal Article
• Authors: Pakravan, Hamid Reza; Jamshidi, Masoud; Latifi, Masoud
• Is Part Of: Construction & building materials. Volume 112(2016)
• Page Start: 739
• Page End: 746
• Publication Date: 2016-06-01
• Subjects: PVA fibers -- Hybrid -- ECC -- Flexural behavior; Building materials -- Periodicals; 624.18
• DOI: 10.1016/j.conbuildmat.2016.02.112
• Languages: English
• ISSNs: 0950-0618

Abstract

Graphical abstract: Highlights: Improving the ductility of ECC composite with hybrid fibers. Study of low and high modulus polymeric fibers in hybrid composite. Study of the effect of fiber cross-sectional shape on the flexural behavior of hybrid ECC composite. Hybridization of PP fibers with different cross-sectional shape and PVA fiber in ECC composite. Abstract: In this study the flexural and compressive properties of hybrid engineered cementitious composite (ECC) was investigated. The hybridization with low- and high-modulus fibers was employed to increase deformability and flexural strain capacity of the ECC composite. It was found that the hybridization with non-round polypropylene (PP) fiber and low modulus polyvinyl alcohol (PVA) fiber have remarkable effect on the improving strain-capacity of resultant composite. The strain-capacity of hybrid ECC was increased by replacement of 20 vol.% of triangular PP fiber and low modulus PVA fiber up to 33% and 148%, respectively. This hybridization also increased the toughness ratio and meets the requirements for the strain-hardening with multiple cracking behaviors of cementitious composites.