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Investigating the Influence of Recycled Coarse Aggregate and Steel Fiber on the Rheological and Mechanical Properties of Self-Compacting Geopolymer Concrete

This experimental study presents the effect of steel fiber (SF) and recycled coarse aggregate (RCA) on the fresh and hardened properties of Self-compacting geopolymer concrete (SCGC). Sixteenth alkali-activated based metakaolin (MK) concrete mixtures with constant binder content of 500 kg/m3 incorpo...

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Main Authors: Aljumaili M.W., Beddu S.B., Itam Z., Their J.M.
Other Authors: 59143330900
Format: Article
Published: International Information and Engineering Technology Association 2025
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spelling my.uniten.dspace-366512025-03-03T15:43:39Z Investigating the Influence of Recycled Coarse Aggregate and Steel Fiber on the Rheological and Mechanical Properties of Self-Compacting Geopolymer Concrete Aljumaili M.W. Beddu S.B. Itam Z. Their J.M. 59143330900 55812080500 55102723400 57202309673 This experimental study presents the effect of steel fiber (SF) and recycled coarse aggregate (RCA) on the fresh and hardened properties of Self-compacting geopolymer concrete (SCGC). Sixteenth alkali-activated based metakaolin (MK) concrete mixtures with constant binder content of 500 kg/m3 incorporated 0, 0.5, 1.0, and 1.5% volume fraction of SF and 0, 10, 20, and 30% RCA as a partially replacement for natural coarse aggregate (NCA) with sodium hydroxide concentration of 12 Molarity at ambient conditions. Fresh state of SCGC were examined slump flow, T500 flow, V-funnel, and Lbox test. At 28 and 90 days the compressive strength and splitting tensile strength were investigated, the flexural strength was evaluated at 90 days. The results highlighted that RCA (30%) and SF (1.5%) significantly constrain the fresh properties of SCGC mixes. Moreover, SCGC incorporated RCA can be produced with compressive strength as high as 31.91-41.13 at 28 and 90 days, respectively. However, 1% SF and 30% RCA in MKbased SCGC appear better performance than the control mixture and leads to an ecologically friendly concrete mix that has appropriate hardening properties and that would contribute to the longevity of the construction industry. ? 2024 The authors. Final 2025-03-03T07:43:39Z 2025-03-03T07:43:39Z 2024 Article 10.18280/acsm.480206 2-s2.0-85194134647 https://www.scopus.com/inward/record.uri?eid=2-s2.0-85194134647&doi=10.18280%2facsm.480206&partnerID=40&md5=2496dc94b5d91468842a806a0713f98b https://irepository.uniten.edu.my/handle/123456789/36651 48 2 197 206 All Open Access; Hybrid Gold Open Access International Information and Engineering Technology Association Scopus
institution Universiti Tenaga Nasional
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country Malaysia
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description This experimental study presents the effect of steel fiber (SF) and recycled coarse aggregate (RCA) on the fresh and hardened properties of Self-compacting geopolymer concrete (SCGC). Sixteenth alkali-activated based metakaolin (MK) concrete mixtures with constant binder content of 500 kg/m3 incorporated 0, 0.5, 1.0, and 1.5% volume fraction of SF and 0, 10, 20, and 30% RCA as a partially replacement for natural coarse aggregate (NCA) with sodium hydroxide concentration of 12 Molarity at ambient conditions. Fresh state of SCGC were examined slump flow, T500 flow, V-funnel, and Lbox test. At 28 and 90 days the compressive strength and splitting tensile strength were investigated, the flexural strength was evaluated at 90 days. The results highlighted that RCA (30%) and SF (1.5%) significantly constrain the fresh properties of SCGC mixes. Moreover, SCGC incorporated RCA can be produced with compressive strength as high as 31.91-41.13 at 28 and 90 days, respectively. However, 1% SF and 30% RCA in MKbased SCGC appear better performance than the control mixture and leads to an ecologically friendly concrete mix that has appropriate hardening properties and that would contribute to the longevity of the construction industry. ? 2024 The authors.
author2 59143330900
author_facet 59143330900
Aljumaili M.W.
Beddu S.B.
Itam Z.
Their J.M.
format Article
author Aljumaili M.W.
Beddu S.B.
Itam Z.
Their J.M.
spellingShingle Aljumaili M.W.
Beddu S.B.
Itam Z.
Their J.M.
Investigating the Influence of Recycled Coarse Aggregate and Steel Fiber on the Rheological and Mechanical Properties of Self-Compacting Geopolymer Concrete
author_sort Aljumaili M.W.
title Investigating the Influence of Recycled Coarse Aggregate and Steel Fiber on the Rheological and Mechanical Properties of Self-Compacting Geopolymer Concrete
title_short Investigating the Influence of Recycled Coarse Aggregate and Steel Fiber on the Rheological and Mechanical Properties of Self-Compacting Geopolymer Concrete
title_full Investigating the Influence of Recycled Coarse Aggregate and Steel Fiber on the Rheological and Mechanical Properties of Self-Compacting Geopolymer Concrete
title_fullStr Investigating the Influence of Recycled Coarse Aggregate and Steel Fiber on the Rheological and Mechanical Properties of Self-Compacting Geopolymer Concrete
title_full_unstemmed Investigating the Influence of Recycled Coarse Aggregate and Steel Fiber on the Rheological and Mechanical Properties of Self-Compacting Geopolymer Concrete
title_sort investigating the influence of recycled coarse aggregate and steel fiber on the rheological and mechanical properties of self-compacting geopolymer concrete
publisher International Information and Engineering Technology Association
publishDate 2025
_version_ 1825816190269784064
score 13.244413

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