Advances in concrete construction

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Engineering properties of coconut shell lightweight concrete: A comparative study

  • Pordesari, Alireza Javadi (Department of Civil Engineering, Faculty of Engineering, Universiti Malaya) ;
  • Shafigh, Payam (Centre for Building, Construction and Tropical Architecture (BuCTA), Faculty of Built Environment, Universiti Malaya) ;
  • Ibrahim, Zainah (Department of Civil Engineering, Faculty of Engineering, Universiti Malaya) ;
  • Aslam, Muhammad (Department of Civil Engineering, School of Engineering and Technology, Institute of Southern Punjab)
  • Received : 2020.06.11
  • Accepted : 2021.09.01
  • Published : 2021.10.25
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Abstract

A vast amount of natural resources are required to produce concretes due to industrialisation and urbanisation, indicating that large quantities of raw materials are being utilised worldwide. The use of industrial wastes as an aggregate in concrete is highly recommended to promote sustainable development by reducing the consumption of natural resources. Agricultural wastes are available in large amounts, thereby making them an acceptable and reliable solution for aggregate in concrete. In this study, natural aggregates, such as coconut shell and oil palm shell, were replaced with normal coarse aggregate. The properties of concrete, such as workability, density, compressive strength in different curing regimes, splitting tensile strength, Young's modulus, drying shrinkage and water absorption were studied. The slump value and density were reduced by replacing the normal coarse aggregate with agrowaste materials. However, the compressive and splitting tensile strengths of the concrete decreased and the water absorption increased. The performance of coconut shell concrete was compared with other lightweight aggregate concrete. Results show that this concrete has better performance than oil palm shell lightweight concrete.

Keywords

Acknowledgement

We would like to thank the University of Malaya for the financial support under Postgraduate Research Grant (PPP) (Project No: PG151-2015B).

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