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Published in: International Journal of Geosynthetics and Ground Engineering 3/2021

01-09-2021 | Original Paper

Correlation-Based Studies on Resilient Modulus Values for Fiber-Reinforced Lime-Blended Clay

Authors: Ahmed M. Al-Mahbashi, Mosleh Ali Al-Shamrani, Arif Ali Baig Moghal, K. Venkata Vydehi

Published in: International Journal of Geosynthetics and Ground Engineering | Issue 3/2021

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Abstract

In the design protocols of pavement subgrade layers, the resilient modulus (MR) property assumes importance in evaluating the performance during their life-time under sustainable repeated or dynamics traffic-loads. The aim of this study is to evaluate the improvements achieved on the subgrade layers of fiber-treated lime-blended expansive soil. Two types of fibers exhibiting different surface properties were considered and their length(s) and dosage(s) (by dry weight of soil) were varied as 6 mm and 12 mm; and 0.2% and 0.6%, respectively. To ensure bonding between fiber and soil particles, dehydrated lime has been added to the soil-fiber mixture. The compacted specimens were cured up to 28 days. Dynamic resilient modulus MR tests were carried out in the laboratory for soil–lime-fiber mixtures using dynamic triaxial device. The obtained MR values were correlated with California Bearing Ratio (CBR) and Unconfined Compression Strength (UCS) values and appropriate models have been proposed to estimate MR. The results show significant increments in MR due to fiber reinforcement and are affected by fiber type, length and dosage. The proposed models considering CBR and UCS to predict MR have shown excellent correlations.

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Metadata
Title
Correlation-Based Studies on Resilient Modulus Values for Fiber-Reinforced Lime-Blended Clay
Authors
Ahmed M. Al-Mahbashi
Mosleh Ali Al-Shamrani
Arif Ali Baig Moghal
K. Venkata Vydehi
Publication date
01-09-2021
Publisher
Springer International Publishing
Published in
International Journal of Geosynthetics and Ground Engineering / Issue 3/2021
Print ISSN: 2199-9260
Electronic ISSN: 2199-9279
DOI
https://doi.org/10.1007/s40891-021-00305-7

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