Staff View: Mechanical Characteristics and Durability of Metakaolin-Based Self-Compacting Geopolymer Concrete as A Function of Recycled Aggregate and Steel Fiber Contents

Mechanical Characteristics and Durability of Metakaolin-Based Self-Compacting Geopolymer Concrete as A Function of Recycled Aggregate and Steel Fiber Contents

There has been a significant interest in the development of eco-friendly building materials. Recyclable and environmentally friendly, geopolymer composites are extraordinary binding materials. The purpose of this experimental study was to examine the mechanical and durability properties of metakaoli...

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Main Authors:	Aljumaili M.W., Beddu S., Itam Z., Their J.M.
Other Authors:	59143330900
Format:	Article
Published:	International Information and Engineering Technology Association 2025
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id	my.uniten.dspace-36414
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spelling	my.uniten.dspace-364142025-03-03T15:42:19Z Mechanical Characteristics and Durability of Metakaolin-Based Self-Compacting Geopolymer Concrete as A Function of Recycled Aggregate and Steel Fiber Contents Aljumaili M.W. Beddu S. Itam Z. Their J.M. 59143330900 55812080500 55102723400 57202309673 There has been a significant interest in the development of eco-friendly building materials. Recyclable and environmentally friendly, geopolymer composites are extraordinary binding materials. The purpose of this experimental study was to examine the mechanical and durability properties of metakaolin based self-compacting geopolymer concrete (SCGPC) comprising steel fibers (SF) and recycled aggregate concrete (RCA) varying percentages of recycled coarse aggregate. The mechanical and durability properties of the geopolymer composites, including fracturing tensile strength, and flexural strength, were subsequently evaluated. At weight proportions of 0%, 25%, 50%, 75% and 100%, the recycled coarse aggregates were substituted for the natural coarse aggregates. The amounts of SF incorporated into the mixtures were 0, 0.5, 1.0, and 1.5% by volume fraction. While the incorporation of SF does not yield a substantial improvement in compressive strength, it substantially enhances fracture tensile strength and flexural behavior. The load-displacement graph demonstrated that the incorporation of steel fibers into geopolymer composites increased their fracture toughness, resulting in a higher maximal load capacity. The findings suggest that the incorporation of RCA into SCGPC reduces its flexural behavior, splitting and compressive tensile strengths, and durability, particularly under peak load, deflection, and load. Furthermore, it is observed that RCA negatively synergize with respect to compressive and fracturing tensile strength. However, SF exhibit a significant positive synergy in terms of flexural properties. ?2024 The authors. Final 2025-03-03T07:42:19Z 2025-03-03T07:42:19Z 2024 Article 10.18280/rcma.340408 2-s2.0-85202500766 https://www.scopus.com/inward/record.uri?eid=2-s2.0-85202500766&doi=10.18280%2frcma.340408&partnerID=40&md5=b5ff85a4472b8790f1b5dd3c989b2290 https://irepository.uniten.edu.my/handle/123456789/36414 34 4 465 480 International Information and Engineering Technology Association Scopus
institution	Universiti Tenaga Nasional
building	UNITEN Library
collection	Institutional Repository
continent	Asia
country	Malaysia
content_provider	Universiti Tenaga Nasional
content_source	UNITEN Institutional Repository
url_provider	http://dspace.uniten.edu.my/
description	There has been a significant interest in the development of eco-friendly building materials. Recyclable and environmentally friendly, geopolymer composites are extraordinary binding materials. The purpose of this experimental study was to examine the mechanical and durability properties of metakaolin based self-compacting geopolymer concrete (SCGPC) comprising steel fibers (SF) and recycled aggregate concrete (RCA) varying percentages of recycled coarse aggregate. The mechanical and durability properties of the geopolymer composites, including fracturing tensile strength, and flexural strength, were subsequently evaluated. At weight proportions of 0%, 25%, 50%, 75% and 100%, the recycled coarse aggregates were substituted for the natural coarse aggregates. The amounts of SF incorporated into the mixtures were 0, 0.5, 1.0, and 1.5% by volume fraction. While the incorporation of SF does not yield a substantial improvement in compressive strength, it substantially enhances fracture tensile strength and flexural behavior. The load-displacement graph demonstrated that the incorporation of steel fibers into geopolymer composites increased their fracture toughness, resulting in a higher maximal load capacity. The findings suggest that the incorporation of RCA into SCGPC reduces its flexural behavior, splitting and compressive tensile strengths, and durability, particularly under peak load, deflection, and load. Furthermore, it is observed that RCA negatively synergize with respect to compressive and fracturing tensile strength. However, SF exhibit a significant positive synergy in terms of flexural properties. ?2024 The authors.
author2	59143330900
author_facet	59143330900 Aljumaili M.W. Beddu S. Itam Z. Their J.M.
format	Article
author	Aljumaili M.W. Beddu S. Itam Z. Their J.M.
spellingShingle	Aljumaili M.W. Beddu S. Itam Z. Their J.M. Mechanical Characteristics and Durability of Metakaolin-Based Self-Compacting Geopolymer Concrete as A Function of Recycled Aggregate and Steel Fiber Contents
author_sort	Aljumaili M.W.
title	Mechanical Characteristics and Durability of Metakaolin-Based Self-Compacting Geopolymer Concrete as A Function of Recycled Aggregate and Steel Fiber Contents
title_short	Mechanical Characteristics and Durability of Metakaolin-Based Self-Compacting Geopolymer Concrete as A Function of Recycled Aggregate and Steel Fiber Contents
title_full	Mechanical Characteristics and Durability of Metakaolin-Based Self-Compacting Geopolymer Concrete as A Function of Recycled Aggregate and Steel Fiber Contents
title_fullStr	Mechanical Characteristics and Durability of Metakaolin-Based Self-Compacting Geopolymer Concrete as A Function of Recycled Aggregate and Steel Fiber Contents
title_full_unstemmed	Mechanical Characteristics and Durability of Metakaolin-Based Self-Compacting Geopolymer Concrete as A Function of Recycled Aggregate and Steel Fiber Contents
title_sort	mechanical characteristics and durability of metakaolin-based self-compacting geopolymer concrete as a function of recycled aggregate and steel fiber contents
publisher	International Information and Engineering Technology Association
publishDate	2025
_version_	1825816229808439296
score	13.244413

Mechanical Characteristics and Durability of Metakaolin-Based Self-Compacting Geopolymer Concrete as A Function of Recycled Aggregate and Steel Fiber Contents

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