Library Subscription: Guest
Begell Digital Portal Begell Digital Library eBooks Journals References & Proceedings Research Collections
Composites: Mechanics, Computations, Applications: An International Journal
ESCI SJR: 0.193 SNIP: 0.497 CiteScore™: 0.39

ISSN Print: 2152-2057
ISSN Online: 2152-2073

Composites: Mechanics, Computations, Applications: An International Journal

DOI: 10.1615/CompMechComputApplIntJ.v5.i2.10
pages 89-109

Matrix Strengthening and Toughness Properties of Hybrid Fiber-Reinforced Concrete composites

J. Vikram
Structural Engineering Division, VIT University, Vellore, India
A. Sivakumar
Structural Engineering Division, VIT University, Vellore, India

ABSTRACT

Fiber-reinforced concrete composites find many special applications where the toughness enhancements are of great value. The composite properties of hybrid fiber additions in a high-strength concrete matrix are highlighted in the present study. The performance characteristics of different fiber combinations in concrete were assessed as to the compressive, flexural, and toughness properties. Concrete mix was designed based on the packing density obtained from the binary and ternary packing of aggregate and binder content. A slag-based binder was used as a partial replacement for cement. Hybrid fibers consisting of polypropylene (PP) and steel fibers were added at different dosage levels for varying the fiber lengths to study the fiber synergy in a high-strength cement matrix. The experimental test results indicated that the hybrid steel fiber additions in concrete (60-mm long and 35-mm short fibers) exhibited a highest compressive (45.7 MPa) and flexural strength (7.20 MPa) compared to steel monofibers additions. Synergistic fiber performance was also observed in hybrid steel fiber combination (60-mm long and 35-mm short fibers) which demonstrated a good post-crack toughness properties. In addition, the hybrid fiber composite consisting of longer PP and steel fiber combinations exhibited a highest toughness value around 117.70 Nm. The test results evidently showed that the influence of hybrid fibers consisting of long fiber combinations demonstrated improved pre-peak and post-peak load-deflection characteristics of concrete.


Articles with similar content:

REINFORCEMENT EFFECTS IN SBR RUBBER/MODIFIED SHUNGITE NANOCOMPOSITES
Nanoscience and Technology: An International Journal, Vol.9, 2018, issue 1
A. V. Babaytsev, H. H. Valiev, Yury V. Kornev, N. A. Semenov
STUDY OF ELASTIC AND STRENGTH PROPERTIES OF HYBRID AND GRADIENT POLYMER COMPOSITES
Composites: Mechanics, Computations, Applications: An International Journal, Vol.1, 2010, issue 4
A. Ya. Gorenberg, A. M. Kuperman, R. A. Turusov
NANOCOMPOSITE MATERIALS BASED ON METAL-CONTAINING NANOPARTICLES AND THERMOPLASTIC POLYMER MATRICES: PRODUCTION AND PROPERTIES
Nanoscience and Technology: An International Journal, Vol.8, 2017, issue 1
Yu. I. Deniskin, E. A. Sokolov, A. N. Bychkov, G. I. Dzhardimalieva, I. E. Uflyand, Kamila Kydralieva, S. V. Barinov
STRENGTH AND LONGEVITY OF POLYMERS AND COMPOSITES UNDER VARIABLE TEMPERATURE−FORCE EXTERNAL CONDITIONS
Composites: Mechanics, Computations, Applications: An International Journal, Vol.1, 2010, issue 1
A. A. Valishin, E. M. Kartashov, T. S. Stepanova
A Multiscale Framework for Analyzing Thermo-Viscoelastic Behavior of Fiber Metal Laminates
International Journal for Multiscale Computational Engineering, Vol.7, 2009, issue 4
Anastasia Muliana, Sourabh Sawant