A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Undrained behaviour of fibre reinforced cemented toyoura sand in triaxial compression and extension loading
This study examines the effects of fibre (0–3%) and cement (0–3%) additives on poorly graded Toyoura sand under consolidated undrained (CIU) compression and extension conditions. Compression tests revealed that dense sands exhibit increased peak strength, stiffness, and a steady decline from peak to post-peak strength. Cemented and fibre-cemented specimens demonstrated stiffer responses and strain-hardening post-peak behavior compared to pure sand. Adding fibres and cement significantly enhanced peak deviatoric stresses, while their impact under extension loading was less pronounced. Fibre and cement combinations, particularly at higher percentages, improved the strength of pure sand under extension conditions. Randomly oriented fibres increased friction angle, cohesion, and compressive strength, while cemented and fibre-cemented specimens exhibited higher secant moduli. The additives enhanced strength parameters, the slope of the critical state line, and the state parameter, with the stress ratio (q/p’) rising for both peak and critical states.
Undrained behaviour of fibre reinforced cemented toyoura sand in triaxial compression and extension loading
This study examines the effects of fibre (0–3%) and cement (0–3%) additives on poorly graded Toyoura sand under consolidated undrained (CIU) compression and extension conditions. Compression tests revealed that dense sands exhibit increased peak strength, stiffness, and a steady decline from peak to post-peak strength. Cemented and fibre-cemented specimens demonstrated stiffer responses and strain-hardening post-peak behavior compared to pure sand. Adding fibres and cement significantly enhanced peak deviatoric stresses, while their impact under extension loading was less pronounced. Fibre and cement combinations, particularly at higher percentages, improved the strength of pure sand under extension conditions. Randomly oriented fibres increased friction angle, cohesion, and compressive strength, while cemented and fibre-cemented specimens exhibited higher secant moduli. The additives enhanced strength parameters, the slope of the critical state line, and the state parameter, with the stress ratio (q/p’) rising for both peak and critical states.
Undrained behaviour of fibre reinforced cemented toyoura sand in triaxial compression and extension loading
Safdar, Muhammad (author) / Newson, Tim (author) / Qureshi, Hamza Ahmad (author)
International Journal of Geotechnical Engineering ; 19 ; 62-77
2025-03-16
16 pages
Article (Journal)
Electronic Resource
English
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