Strength and durability of concrete with bentonite clay and quarry dust DOI Creative Commons
Muhammad Umar, Hui Qian, Muhammad Nasir Ayaz Khan

et al.

Frontiers in Materials, Journal Year: 2025, Volume and Issue: 11

Published: Jan. 6, 2025

The research object is concrete with supplementary cementitious materials (SCMs) such as bentonite clay and quarry dust. impact of incorporating these SCMs on fresh properties, compressive, flexural, split tensile strengths, acid resistance was investigated. Microstructural analysis using Scanning Electron Microscopy (SEM) X-ray radiography were used. Varying proportions (5%–20%) incorporated into the mix while maintaining a constant water-to-cement ratio. Key findings reveal 7.31% increase in compressive strength, significant 19.7% improvement flexural enhanced resistance. Utilizing Response Surface Methodology (RSM), optimal design for achieving superior mechanical strength identified. quadratic model RSM indicated that combination 10.29% clay, 7.20% dust, 8.19% fine aggregate replacement yielded highest strength. Predictive experimental results demonstrated strong agreement. Compared to reference concrete, optimized samples exhibited increases 18.08%, 33.60%, 11.15% respectively. This demonstrates potential locally available viable sustainable alternatives production, offering improved performance without compromising

Language: Английский

Strength and durability of concrete with bentonite clay and quarry dust DOI Creative Commons
Muhammad Umar, Hui Qian, Muhammad Nasir Ayaz Khan

et al.

Frontiers in Materials, Journal Year: 2025, Volume and Issue: 11

Published: Jan. 6, 2025

The research object is concrete with supplementary cementitious materials (SCMs) such as bentonite clay and quarry dust. impact of incorporating these SCMs on fresh properties, compressive, flexural, split tensile strengths, acid resistance was investigated. Microstructural analysis using Scanning Electron Microscopy (SEM) X-ray radiography were used. Varying proportions (5%–20%) incorporated into the mix while maintaining a constant water-to-cement ratio. Key findings reveal 7.31% increase in compressive strength, significant 19.7% improvement flexural enhanced resistance. Utilizing Response Surface Methodology (RSM), optimal design for achieving superior mechanical strength identified. quadratic model RSM indicated that combination 10.29% clay, 7.20% dust, 8.19% fine aggregate replacement yielded highest strength. Predictive experimental results demonstrated strong agreement. Compared to reference concrete, optimized samples exhibited increases 18.08%, 33.60%, 11.15% respectively. This demonstrates potential locally available viable sustainable alternatives production, offering improved performance without compromising

Language: Английский

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