Fibre reinforced concrete containing waste coconut shell aggregate, fly ash and polypropylene fibre

R. Prakash, R. Thenmozhi, Sudharshan N. Raman, C. Subramanian

Research output: Contribution to journalArticle

Abstract

The aim of this study is to investigate the effect of polypropylene fibre addition into eco-concrete made with fly ash, an industrial by product, as partial cement replacement material, and coconut shell, an agricultural waste, as coarse aggregates, on the mechanical properties of the concrete. Two different mixes were developed, one with coconut shell only as coarse aggregates, and the other with the combination of both conventional aggregates and coconut shell as coarse aggregates. The cement content was replaced with class F fly ash at 10% by weight in the concrete mixes. The volume fractions of polypropylene fibres used in this study were 0.25%, 0.5%, 0.75% and 1.0%. The addition of polypropylene fibres slightly reduces the slump and density of coconut shell concrete. As the volume fraction of fibres increases, the compressive strength and modulus of elasticity of coconut shell concrete also increases by up to 0.5% of fibre volume fraction. The split tensile strength and flexural strength of coconut shell concrete were also enhanced with fibre addition. The addition of 0.75% and 1.0% volume fractions of polypropylene fibres slightly reduces compressive strength. Results of this study show that polypropylene fibres may be used in coconut shell concrete to improve the mechanical properties of the composite.

Original languageEnglish
Pages (from-to)33-42
Number of pages10
JournalRevista Facultad de Ingenieria
Issue number94
DOIs
Publication statusPublished - 1 Jan 2020

Fingerprint

Agricultural wastes
Fly ash
Reinforced concrete
Sustainable development
Polypropylenes
Concretes
Fibers
Volume fraction
Compressive strength
Cements
Mechanical properties
Concrete mixtures
Bending strength
Byproducts
Tensile strength
Elastic moduli
Composite materials

Keywords

  • Agricultural wastes
  • Building materials
  • Concrete
  • Fibre
  • Sustainable development

ASJC Scopus subject areas

  • Engineering(all)

Cite this

Fibre reinforced concrete containing waste coconut shell aggregate, fly ash and polypropylene fibre. / Prakash, R.; Thenmozhi, R.; Raman, Sudharshan N.; Subramanian, C.

In: Revista Facultad de Ingenieria, No. 94, 01.01.2020, p. 33-42.

Research output: Contribution to journalArticle

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