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Triaxial compression and shear strength characteristics of two-stage concrete: an experimental study

The research necessity stems from the need to understand and evaluate the performance of Two-Stage Concrete (TSC) under triaxial compression conditions, as prior studies have predominantly focused on uniaxial and biaxial testing of conventional concrete (CC). This study represents the first comprehe...

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Main Authors:	Moaf F.O., Rajabi A.M., Abdelgader H.S., Kurpi?ska M., Murali G., Mi?kiewicz M.
Other Authors:	57194047936
Format:	Article
Published:	Nature Research 2025
Subjects:	cement concrete abnormal behavior adult article compression compressive strength controlled study elasticity experimental study friction human moisture physiological stress shear strength
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spelling	my.uniten.dspace-361282025-03-03T15:41:25Z Triaxial compression and shear strength characteristics of two-stage concrete: an experimental study Moaf F.O. Rajabi A.M. Abdelgader H.S. Kurpi?ska M. Murali G. Mi?kiewicz M. 57194047936 6506470354 6603357399 48561452900 57203952839 55905621300 cement concrete abnormal behavior adult article compression compressive strength controlled study elasticity experimental study friction human moisture physiological stress shear strength The research necessity stems from the need to understand and evaluate the performance of Two-Stage Concrete (TSC) under triaxial compression conditions, as prior studies have predominantly focused on uniaxial and biaxial testing of conventional concrete (CC). This study represents the first comprehensive investigation into the triaxial compressive strength and related mechanical properties of TSC, addressing a critical gap in the existing body of literature. Three different mixtures were prepared, including one CC and two TSC variants with varying cement content. The results and behavior of these mixtures were compared to assess their performance. Findings reveal that TSC, particularly those types with finer aggregates, demonstrates superior shear strength, achieving up to 52.4�MPa under dry conditions, in contrast to the 48.38�MPa observed in CC. Furthermore, TSC exhibits remarkable stress tolerance, withstanding up to 82.04�MPa, significantly outperforming CC, which withstands only 69.61�MPa under similar conditions. This behavior can be attributed to the higher coarse aggregate content, the increased interaction and contact points between coarse aggregates, the improved bonding between them, and the inherent properties of the grout. TSC also maintains a higher modulus of elasticity and internal friction angles, indicating superior deformation behavior and shear resistance. Additionally, TSC shows greater resilience to moisture, suggesting its potential suitability for use in variable moisture environments. These properties highlight the strength of TSC for high-load applications and its suitability for infrastructure prone to environmental fluctuations. ? The Author(s) 2024. Final 2025-03-03T07:41:25Z 2025-03-03T07:41:25Z 2024 Article 10.1038/s41598-024-81112-8 2-s2.0-85210354095 https://www.scopus.com/inward/record.uri?eid=2-s2.0-85210354095&doi=10.1038%2fs41598-024-81112-8&partnerID=40&md5=751741090c4778ecac6c83c7632854c6 https://irepository.uniten.edu.my/handle/123456789/36128 14 1 29396 All Open Access; Gold Open Access Nature Research 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/
topic	cement concrete abnormal behavior adult article compression compressive strength controlled study elasticity experimental study friction human moisture physiological stress shear strength
spellingShingle	cement concrete abnormal behavior adult article compression compressive strength controlled study elasticity experimental study friction human moisture physiological stress shear strength Moaf F.O. Rajabi A.M. Abdelgader H.S. Kurpi?ska M. Murali G. Mi?kiewicz M. Triaxial compression and shear strength characteristics of two-stage concrete: an experimental study
description	The research necessity stems from the need to understand and evaluate the performance of Two-Stage Concrete (TSC) under triaxial compression conditions, as prior studies have predominantly focused on uniaxial and biaxial testing of conventional concrete (CC). This study represents the first comprehensive investigation into the triaxial compressive strength and related mechanical properties of TSC, addressing a critical gap in the existing body of literature. Three different mixtures were prepared, including one CC and two TSC variants with varying cement content. The results and behavior of these mixtures were compared to assess their performance. Findings reveal that TSC, particularly those types with finer aggregates, demonstrates superior shear strength, achieving up to 52.4�MPa under dry conditions, in contrast to the 48.38�MPa observed in CC. Furthermore, TSC exhibits remarkable stress tolerance, withstanding up to 82.04�MPa, significantly outperforming CC, which withstands only 69.61�MPa under similar conditions. This behavior can be attributed to the higher coarse aggregate content, the increased interaction and contact points between coarse aggregates, the improved bonding between them, and the inherent properties of the grout. TSC also maintains a higher modulus of elasticity and internal friction angles, indicating superior deformation behavior and shear resistance. Additionally, TSC shows greater resilience to moisture, suggesting its potential suitability for use in variable moisture environments. These properties highlight the strength of TSC for high-load applications and its suitability for infrastructure prone to environmental fluctuations. ? The Author(s) 2024.
author2	57194047936
author_facet	57194047936 Moaf F.O. Rajabi A.M. Abdelgader H.S. Kurpi?ska M. Murali G. Mi?kiewicz M.
format	Article
author	Moaf F.O. Rajabi A.M. Abdelgader H.S. Kurpi?ska M. Murali G. Mi?kiewicz M.
author_sort	Moaf F.O.
title	Triaxial compression and shear strength characteristics of two-stage concrete: an experimental study
title_short	Triaxial compression and shear strength characteristics of two-stage concrete: an experimental study
title_full	Triaxial compression and shear strength characteristics of two-stage concrete: an experimental study
title_fullStr	Triaxial compression and shear strength characteristics of two-stage concrete: an experimental study
title_full_unstemmed	Triaxial compression and shear strength characteristics of two-stage concrete: an experimental study
title_sort	triaxial compression and shear strength characteristics of two-stage concrete: an experimental study
publisher	Nature Research
publishDate	2025
_version_	1825816139627757568
score	13.244109

Triaxial compression and shear strength characteristics of two-stage concrete: an experimental study

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