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Physicochemical behavior of tropical laterite soil stabilized with non-traditional additive

Non-traditional soil stabilizers are widely used for treating weak materials. These additives are cost- and time-effective alternatives to more traditional materials such as lime and cement. It has been well established that the treatment of natural soil with chemical additives will gradually affect...

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Main Authors: Latifi, Nima, Marto, Aminaton, Eisazadeh, Amin
Format: Article
Published: Springer Verlag 2016
Subjects:
TA Engineering (General). Civil engineering (General)
Online Access:http://eprints.utm.my/id/eprint/72705/
https://www.scopus.com/inward/record.uri?eid=2-s2.0-84923872863&doi=10.1007%2fs11440-015-0370-3&partnerID=40&md5=63b114731b0454c32221345d08ddc4b5
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spelling my.utm.727052017-11-27T05:05:23Z http://eprints.utm.my/id/eprint/72705/ Physicochemical behavior of tropical laterite soil stabilized with non-traditional additive Latifi, Nima Marto, Aminaton Eisazadeh, Amin TA Engineering (General). Civil engineering (General) Non-traditional soil stabilizers are widely used for treating weak materials. These additives are cost- and time-effective alternatives to more traditional materials such as lime and cement. It has been well established that the treatment of natural soil with chemical additives will gradually affect the size, shape, and arrangement of soil particles. Furthermore, the degree of improvement is dependent on the quantity and the pattern of new products formed on and around the soil particles. In this paper, unconfined compressive strength (UCS) test was performed as an index of soil improvement on mix designs treated with calcium-based powder stabilizer (SH-85). The time-dependent changes in shear strength parameter and compressibility behavior of treated soil were also studied using standard direct shear and one-dimensional consolidation tests. In order to better understand the shape and surface area of treated particles, FESEM, N2-BET, and particle size distribution analysis were performed on soil-stabilizer matrix. From engineering standpoint, the UCS results showed that the degree of improvement for SH-85-stabilized laterite soil was roughly five times stronger than the untreated soil at the early stages of curing (7-day period). Also, a significant increase in the compressibility resistance of treated samples with curing time was observed. Based on the results, less porous and denser soil fabric was seen on the surface of clay particles. FESEM images of the treated mix designs showed the formation of white lumps in the soil fabric with the cementitious gel filling the pores in the soil structure. Springer Verlag 2016 Article PeerReviewed Latifi, Nima and Marto, Aminaton and Eisazadeh, Amin (2016) Physicochemical behavior of tropical laterite soil stabilized with non-traditional additive. Acta Geotechnica, 11 (2). pp. 433-443. ISSN 1861-1125 https://www.scopus.com/inward/record.uri?eid=2-s2.0-84923872863&doi=10.1007%2fs11440-015-0370-3&partnerID=40&md5=63b114731b0454c32221345d08ddc4b5
institution Universiti Teknologi Malaysia
building UTM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknologi Malaysia
content_source UTM Institutional Repository
url_provider http://eprints.utm.my/
topic TA Engineering (General). Civil engineering (General)
spellingShingle TA Engineering (General). Civil engineering (General)
Latifi, Nima
Marto, Aminaton
Eisazadeh, Amin
Physicochemical behavior of tropical laterite soil stabilized with non-traditional additive
description Non-traditional soil stabilizers are widely used for treating weak materials. These additives are cost- and time-effective alternatives to more traditional materials such as lime and cement. It has been well established that the treatment of natural soil with chemical additives will gradually affect the size, shape, and arrangement of soil particles. Furthermore, the degree of improvement is dependent on the quantity and the pattern of new products formed on and around the soil particles. In this paper, unconfined compressive strength (UCS) test was performed as an index of soil improvement on mix designs treated with calcium-based powder stabilizer (SH-85). The time-dependent changes in shear strength parameter and compressibility behavior of treated soil were also studied using standard direct shear and one-dimensional consolidation tests. In order to better understand the shape and surface area of treated particles, FESEM, N2-BET, and particle size distribution analysis were performed on soil-stabilizer matrix. From engineering standpoint, the UCS results showed that the degree of improvement for SH-85-stabilized laterite soil was roughly five times stronger than the untreated soil at the early stages of curing (7-day period). Also, a significant increase in the compressibility resistance of treated samples with curing time was observed. Based on the results, less porous and denser soil fabric was seen on the surface of clay particles. FESEM images of the treated mix designs showed the formation of white lumps in the soil fabric with the cementitious gel filling the pores in the soil structure.
format Article
author Latifi, Nima
Marto, Aminaton
Eisazadeh, Amin
author_facet Latifi, Nima
Marto, Aminaton
Eisazadeh, Amin
author_sort Latifi, Nima
title Physicochemical behavior of tropical laterite soil stabilized with non-traditional additive
title_short Physicochemical behavior of tropical laterite soil stabilized with non-traditional additive
title_full Physicochemical behavior of tropical laterite soil stabilized with non-traditional additive
title_fullStr Physicochemical behavior of tropical laterite soil stabilized with non-traditional additive
title_full_unstemmed Physicochemical behavior of tropical laterite soil stabilized with non-traditional additive
title_sort physicochemical behavior of tropical laterite soil stabilized with non-traditional additive
publisher Springer Verlag
publishDate 2016
url http://eprints.utm.my/id/eprint/72705/
https://www.scopus.com/inward/record.uri?eid=2-s2.0-84923872863&doi=10.1007%2fs11440-015-0370-3&partnerID=40&md5=63b114731b0454c32221345d08ddc4b5
_version_ 1643656502618095616
score 13.211869

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