@inproceedings{f0bbfc83a8274c5fb8f8854b960da08e,
title = "Reliability analysis of polyvinyl alcohol fiber-reinforced soft subgrade soil treated with lime and alkali activated stabilizer: A comparative study",
abstract = "The present research has made an effort to support the subgrade strength performance of polyvinyl alcohol fiber-reinforced (PAF) soft soil stabilized with an alkali-activated stabilizer (AAS). The research compares the subgrade stiffness parameters (resilient modulus, penetration, and flexural resistance) between hydrated lime and alkaline stabilizer mixed PAF-soil at various slag/bagasse ash (BA) proportions. The influences of slag, BA, and PAF changing percentages in the AAS-soil matrix on the California Bearing ratio (CBR) and soil-beam flexural strength (Sf) are evaluated. The study also proposes an optimum dosage of slag-BA-PAF in alkaline stabilized soft subgrade soil. It is observed that PAF-AAS soil exhibits higher interfacial interactions and inter-bonding density than lime-PAF-soil under low tensile cracking. The combined PAF (0.6\%) with 20\% BA replacement with slag in the alkaline stabilizer strengthens the CBR and flexural strength by around 45\% over lime soil-fiber mixtures. Moreover, a detailed reliability index (β) was also conducted to evaluate further the impact of uncertainties in the PAF-AAS-soil mixture on subgrade performance. The research study shows that the higher percentage of PAF-slag in a BA-based AAS mixture can substantially improve the stiffness and durability of soft subgrade soil.",
author = "Mazhar Syed and Moghal, \{Arif Ali Baig\} and Bhaskar Chittoori",
note = "Publisher Copyright: {\textcopyright} 2023 American Society of Civil Engineers (ASCE). All rights reserved.; 2023 Geo-Congress: Sustainable Infrastructure Solutions from the Ground Up - Soil Improvement, Geoenvironmental, and Sustainability ; Conference date: 26-03-2023 Through 29-03-2023",
year = "2023",
doi = "10.1061/9780784484661.044",
language = "American English",
series = "Geotechnical Special Publication",
publisher = "American Society of Civil Engineers",
number = "GSP 339",
pages = "422--432",
editor = "Ellen Rathje and Montoya, \{Brina M.\} and Wayne, \{Mark H.\}",
booktitle = "Geotechnical Special Publication",
address = "United States",
edition = "GSP 339",
}