Characterization of eco-friendly steel fiber-reinforced concrete containing waste coconut shell as coarse aggregates and fly ash as partial cement replacement

Ramaiah Prakash, Rajagopal Thenmozhi, Sudharshan Naidu Raman, Chidambaram Subramanian

Research output: Contribution to journalArticle

Abstract

This study investigates the effect of steel fiber 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. Two different mixes were developed, one with coconut shell only as coarse aggregates, and the other with both conventional aggregates and coconut shell as coarse aggregates. The cement content was replaced with class F fly ash at 10% by weight. Steel fibers of 0.25, 0.5, 0.75, and 1.0% by volume of concrete were used. The properties investigated were slump, density, ultrasonic pulse velocity, compressive strength, split tensile strength, flexural strength, and modulus of elasticity (MOE). The findings indicated that the addition of steel fibers resulted in a reduced slump and slightly increased density in the fresh concrete mixes. Meanwhile, enhancements of up to 39% compressive strength and 17% MOE were also obtained. A substantial improvement in split tensile strength and flexural strength were also observed. Steel fiber addition also significantly reduced the brittleness of concrete containing coconut shell. The outcomes of the experiment revealed that steel fiber addition yielded a positive result on the mechanical properties of coconut shell concrete.

Original languageEnglish
JournalStructural Concrete
DOIs
Publication statusPublished - 1 Jan 2019

Fingerprint

Coal Ash
Steel fibers
Fly ash
Reinforced concrete
Cements
Concretes
Bending strength
Compressive strength
Tensile strength
Elastic moduli
Mechanical properties
Agricultural wastes
Concrete mixtures
Brittleness
Byproducts
Ultrasonics
Experiments

Keywords

  • coconut shell aggregate
  • compressive strength
  • flexural strength
  • modulus of elasticity, brittleness ratio
  • split tensile strength
  • steel fiber

ASJC Scopus subject areas

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

Cite this

Characterization of eco-friendly steel fiber-reinforced concrete containing waste coconut shell as coarse aggregates and fly ash as partial cement replacement. / Prakash, Ramaiah; Thenmozhi, Rajagopal; Raman, Sudharshan Naidu; Subramanian, Chidambaram.

In: Structural Concrete, 01.01.2019.

Research output: Contribution to journalArticle

@article{1bfe3db3a9b9415ca9a538481b3d73e9,
title = "Characterization of eco-friendly steel fiber-reinforced concrete containing waste coconut shell as coarse aggregates and fly ash as partial cement replacement",
abstract = "This study investigates the effect of steel fiber 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. Two different mixes were developed, one with coconut shell only as coarse aggregates, and the other with both conventional aggregates and coconut shell as coarse aggregates. The cement content was replaced with class F fly ash at 10{\%} by weight. Steel fibers of 0.25, 0.5, 0.75, and 1.0{\%} by volume of concrete were used. The properties investigated were slump, density, ultrasonic pulse velocity, compressive strength, split tensile strength, flexural strength, and modulus of elasticity (MOE). The findings indicated that the addition of steel fibers resulted in a reduced slump and slightly increased density in the fresh concrete mixes. Meanwhile, enhancements of up to 39{\%} compressive strength and 17{\%} MOE were also obtained. A substantial improvement in split tensile strength and flexural strength were also observed. Steel fiber addition also significantly reduced the brittleness of concrete containing coconut shell. The outcomes of the experiment revealed that steel fiber addition yielded a positive result on the mechanical properties of coconut shell concrete.",
keywords = "coconut shell aggregate, compressive strength, flexural strength, modulus of elasticity, brittleness ratio, split tensile strength, steel fiber",
author = "Ramaiah Prakash and Rajagopal Thenmozhi and Raman, {Sudharshan Naidu} and Chidambaram Subramanian",
year = "2019",
month = "1",
day = "1",
doi = "10.1002/suco.201800355",
language = "English",
journal = "Structural Concrete",
issn = "1464-4177",
publisher = "Wiley-Blackwell",

}

TY - JOUR

T1 - Characterization of eco-friendly steel fiber-reinforced concrete containing waste coconut shell as coarse aggregates and fly ash as partial cement replacement

AU - Prakash, Ramaiah

AU - Thenmozhi, Rajagopal

AU - Raman, Sudharshan Naidu

AU - Subramanian, Chidambaram

PY - 2019/1/1

Y1 - 2019/1/1

N2 - This study investigates the effect of steel fiber 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. Two different mixes were developed, one with coconut shell only as coarse aggregates, and the other with both conventional aggregates and coconut shell as coarse aggregates. The cement content was replaced with class F fly ash at 10% by weight. Steel fibers of 0.25, 0.5, 0.75, and 1.0% by volume of concrete were used. The properties investigated were slump, density, ultrasonic pulse velocity, compressive strength, split tensile strength, flexural strength, and modulus of elasticity (MOE). The findings indicated that the addition of steel fibers resulted in a reduced slump and slightly increased density in the fresh concrete mixes. Meanwhile, enhancements of up to 39% compressive strength and 17% MOE were also obtained. A substantial improvement in split tensile strength and flexural strength were also observed. Steel fiber addition also significantly reduced the brittleness of concrete containing coconut shell. The outcomes of the experiment revealed that steel fiber addition yielded a positive result on the mechanical properties of coconut shell concrete.

AB - This study investigates the effect of steel fiber 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. Two different mixes were developed, one with coconut shell only as coarse aggregates, and the other with both conventional aggregates and coconut shell as coarse aggregates. The cement content was replaced with class F fly ash at 10% by weight. Steel fibers of 0.25, 0.5, 0.75, and 1.0% by volume of concrete were used. The properties investigated were slump, density, ultrasonic pulse velocity, compressive strength, split tensile strength, flexural strength, and modulus of elasticity (MOE). The findings indicated that the addition of steel fibers resulted in a reduced slump and slightly increased density in the fresh concrete mixes. Meanwhile, enhancements of up to 39% compressive strength and 17% MOE were also obtained. A substantial improvement in split tensile strength and flexural strength were also observed. Steel fiber addition also significantly reduced the brittleness of concrete containing coconut shell. The outcomes of the experiment revealed that steel fiber addition yielded a positive result on the mechanical properties of coconut shell concrete.

KW - coconut shell aggregate

KW - compressive strength

KW - flexural strength

KW - modulus of elasticity, brittleness ratio

KW - split tensile strength

KW - steel fiber

UR - http://www.scopus.com/inward/record.url?scp=85068510607&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85068510607&partnerID=8YFLogxK

U2 - 10.1002/suco.201800355

DO - 10.1002/suco.201800355

M3 - Article

JO - Structural Concrete

JF - Structural Concrete

SN - 1464-4177

ER -