Al-Bared, M.A.M. and Harahap, I.S.H. and Marto, A. and Abad, S.V.A.N.K. and Ali, M.O.A. (2019) Undrained shear strength and microstructural characterization of treated soft soil with recycled materials. Geomechanics and Engineering, 18 (4). pp. 427-437. ISSN 2005307X
Full text not available from this repository.Abstract
Waste materials are being produced in huge quantities globally, and the usual practice is to dump them into legal or illegal landfills. Recycled tiles (RT) are being used in soil stabilisation which is considered as sustainable solution to reduce the amount of waste and solve the geotechnical problems. Although the stabilisation of soil using RT improved the soil properties, it could not achieve the standard values required for construction. Thus, this study uses 20 RT together with low cement content (2) to stabilise soft soil. Series of consolidated undrained triaxial compression tests were conducted on untreated and RT-cement treated samples. Each test was performed at 7, 14, and 28 days curing period and 50, 100, and 200 kPa confining pressures. The results revealed an improvement in the undrained shear strength parameters (cohesion and internal frication angle) of treated specimens compared to the untreated ones. The cohesion and friction angle of the treated samples were increased with the increase in curing time and confining pressure. The peak deviator stress of treated samples increases with the increment of either the effective confining pressures or the curing period. Microstructural and chemical tests were performed on both untreated and RT-cement treated samples, which included field emission scanning electron microscopic (FESEM), Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), and energy dispersive X-ray spectrometer (EDX). The results indicated the formation of cementation compounds such as calcium aluminium hydrate (C-A-H) within the treated samples. Consequently, the newly formed compounds were responsible for the improvement observed in the results of the triaxial tests. This research promotes the utilisation of RT to reduce the amount of cement used in soil stabilisation for cleaner planet and sustainable environment. © 2019 Techno-Press, Ltd.
Item Type: | Article |
---|---|
Additional Information: | cited By 26 |
Uncontrolled Keywords: | Compression testing; Curing; Fourier transform infrared spectroscopy; Recycling; Rock pressure; Soil cement; Soil mechanics; Soil testing; Soils; Stabilization; X ray spectrometers, Consolidated-undrained triaxial; Consolidated-undrained triaxial test; Curing time; Energy dispersive x-ray spectrometers; Micro-structural characterization; Soft soils; Soil stabilisation; Undrained shear strength, Shear strength |
Depositing User: | Mr Ahmad Suhairi UTP |
Date Deposited: | 10 Nov 2023 03:25 |
Last Modified: | 10 Nov 2023 03:25 |
URI: | https://khub.utp.edu.my/scholars/id/eprint/11459 |