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An experimental investigation of the mechanical characteristics and drying shrinkage of a single-size expanded polystyrene lightweight concrete reinforced with waste plastic fibres

This research focuses on developing single-size expanded polystyrene (EPS) lightweight concrete reinforced with waste plastic fibres (WPFs) and evaluating its mechanical characteristics and drying shrinkage. An experimental investigation of two groups of concrete mixtures was conducted. The first ex...

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Main Authors:	Al-Alusi, Mohammed Raji Mohammed, Kurdi, Nahidh Hammad, Al-Hadithi, Abdulkader Ismail, Hammad, Ahmed
Format:	Article
Published:	Elsevier 2024
Subjects:	TA Engineering (General). Civil engineering (General)
Online Access:	http://eprints.um.edu.my/45747/ https://doi.org/10.1016/j.conbuildmat.2024.135048
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spelling	my.um.eprints.457472024-11-11T06:38:58Z http://eprints.um.edu.my/45747/ An experimental investigation of the mechanical characteristics and drying shrinkage of a single-size expanded polystyrene lightweight concrete reinforced with waste plastic fibres Al-Alusi, Mohammed Raji Mohammed Kurdi, Nahidh Hammad Al-Hadithi, Abdulkader Ismail Hammad, Ahmed TA Engineering (General). Civil engineering (General) This research focuses on developing single-size expanded polystyrene (EPS) lightweight concrete reinforced with waste plastic fibres (WPFs) and evaluating its mechanical characteristics and drying shrinkage. An experimental investigation of two groups of concrete mixtures was conducted. The first experiment involved the partial substitution of the coarse aggregate volume with 5%, 10%, 15%, 20%, 25%, and 30% EPS beads. The second investigation involved six different volume fractions Vf of waste plastic fibres. A comprehensive test programme was implemented to evaluate these mixtures by measuring compressive strength, flexural strength, drying shrinkage, ultrasonic pulse velocity, and water absorption. The incorporation of EPS in the concrete mixtures in Group 1 resulted in reduced compressive strength and flexural strength at all ages. The drying shrinkage of the concretes in Group 1 increased with the proportion of EPS aggregate. The addition of waste plastic fibres to the concrete mixes in Group 2 improved the compressive strength for volumetric fractions of WPFs between 0% and 1%, but greater proportions of volumetric fibres up to 1.5% decreased the compressive strength. The inclusion of WPFs reduced the drying shrinkage of the Group 2 concretes at volume fractions between 0.25% and 1.25% compared to that of the reference mix (M8). In general, drying shrinkage developed rapidly in concrete specimens with added EPS and WPFs tested at 40-60 days and became more stable after 60 days. Elsevier 2024-02 Article PeerReviewed Al-Alusi, Mohammed Raji Mohammed and Kurdi, Nahidh Hammad and Al-Hadithi, Abdulkader Ismail and Hammad, Ahmed (2024) An experimental investigation of the mechanical characteristics and drying shrinkage of a single-size expanded polystyrene lightweight concrete reinforced with waste plastic fibres. Construction and Building Materials, 415. p. 135048. ISSN 0950-0618, DOI https://doi.org/10.1016/j.conbuildmat.2024.135048 <https://doi.org/10.1016/j.conbuildmat.2024.135048>. https://doi.org/10.1016/j.conbuildmat.2024.135048 10.1016/j.conbuildmat.2024.135048
institution	Universiti Malaya
building	UM Library
collection	Institutional Repository
continent	Asia
country	Malaysia
content_provider	Universiti Malaya
content_source	UM Research Repository
url_provider	http://eprints.um.edu.my/
topic	TA Engineering (General). Civil engineering (General)
spellingShingle	TA Engineering (General). Civil engineering (General) Al-Alusi, Mohammed Raji Mohammed Kurdi, Nahidh Hammad Al-Hadithi, Abdulkader Ismail Hammad, Ahmed An experimental investigation of the mechanical characteristics and drying shrinkage of a single-size expanded polystyrene lightweight concrete reinforced with waste plastic fibres
description	This research focuses on developing single-size expanded polystyrene (EPS) lightweight concrete reinforced with waste plastic fibres (WPFs) and evaluating its mechanical characteristics and drying shrinkage. An experimental investigation of two groups of concrete mixtures was conducted. The first experiment involved the partial substitution of the coarse aggregate volume with 5%, 10%, 15%, 20%, 25%, and 30% EPS beads. The second investigation involved six different volume fractions Vf of waste plastic fibres. A comprehensive test programme was implemented to evaluate these mixtures by measuring compressive strength, flexural strength, drying shrinkage, ultrasonic pulse velocity, and water absorption. The incorporation of EPS in the concrete mixtures in Group 1 resulted in reduced compressive strength and flexural strength at all ages. The drying shrinkage of the concretes in Group 1 increased with the proportion of EPS aggregate. The addition of waste plastic fibres to the concrete mixes in Group 2 improved the compressive strength for volumetric fractions of WPFs between 0% and 1%, but greater proportions of volumetric fibres up to 1.5% decreased the compressive strength. The inclusion of WPFs reduced the drying shrinkage of the Group 2 concretes at volume fractions between 0.25% and 1.25% compared to that of the reference mix (M8). In general, drying shrinkage developed rapidly in concrete specimens with added EPS and WPFs tested at 40-60 days and became more stable after 60 days.
format	Article
author	Al-Alusi, Mohammed Raji Mohammed Kurdi, Nahidh Hammad Al-Hadithi, Abdulkader Ismail Hammad, Ahmed
author_facet	Al-Alusi, Mohammed Raji Mohammed Kurdi, Nahidh Hammad Al-Hadithi, Abdulkader Ismail Hammad, Ahmed
author_sort	Al-Alusi, Mohammed Raji Mohammed
title	An experimental investigation of the mechanical characteristics and drying shrinkage of a single-size expanded polystyrene lightweight concrete reinforced with waste plastic fibres
title_short	An experimental investigation of the mechanical characteristics and drying shrinkage of a single-size expanded polystyrene lightweight concrete reinforced with waste plastic fibres
title_full	An experimental investigation of the mechanical characteristics and drying shrinkage of a single-size expanded polystyrene lightweight concrete reinforced with waste plastic fibres
title_fullStr	An experimental investigation of the mechanical characteristics and drying shrinkage of a single-size expanded polystyrene lightweight concrete reinforced with waste plastic fibres
title_full_unstemmed	An experimental investigation of the mechanical characteristics and drying shrinkage of a single-size expanded polystyrene lightweight concrete reinforced with waste plastic fibres
title_sort	experimental investigation of the mechanical characteristics and drying shrinkage of a single-size expanded polystyrene lightweight concrete reinforced with waste plastic fibres
publisher	Elsevier
publishDate	2024
url	http://eprints.um.edu.my/45747/ https://doi.org/10.1016/j.conbuildmat.2024.135048
_version_	1816130453726298112
score	13.223943

An experimental investigation of the mechanical characteristics and drying shrinkage of a single-size expanded polystyrene lightweight concrete reinforced with waste plastic fibres

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