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Comparative flexural behaviour of cement composites reinforced with Carbon black and Carbon fibres

##article.authors##

  • Nishanth Patil Department of Civil and Environmental Engineering, University of Illinois at Urbana Champaign https://orcid.org/0000-0002-6404-2571
  • Dr Anand M. Hunashyal School of Civil and Environmental Engineering, KLE Technological University, Hubballi 580031, India
  • Dr Sayed S Quadri School of Civil and Environmental Engineering, KLE Technological University, Hubballi 580031, India

DOI:

https://doi.org/10.31224/2775

Keywords:

Cementitious composites, Composite Materials, Engineered Cementitious Composite, Carbon fiber, Carbon black, Activated carbon, Nanocomposite, Flexural strength, Construction material, Ductility, Stiffness, Toughness Index, Structural failure

Abstract

The flexural performance of cement composites reinforced with Carbon black (CB) and Carbon fibers (CF) was investigated according to ASTM D790-2003 and IS 516-1999. The variation in flexural behavior like flexural strength, flexural modulus, toughness index, ductility index, and displacement at failure was different according to the proportion of CB used. Though the use of CB only, did not show promising results mainly owing to the stiffening of the composite, the trends observed when CB was hybridized with CF were encouraging, primarily leading to a 32 % increase in toughness and ductility index over the plain cement sample for an optimum loading of 5% CB and 0.25% CF by wt of cement. Although the mechanical strength of pure CB composites is reduced, they satisfy the basic requirements of lightweight construction materials

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Posted

2023-01-08

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Copyright (c) 2023 Nishanth Patil, Dr Anand M. Hunashyal, Dr Sayed S Quadri

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This work is licensed under a Creative Commons Attribution 4.0 International License.