Investigative Study of Behaviour of Treated Expansive Soil Using Empirical Correlations

Eyo Umo Eyo; Samson Ngambi; Samuel Abbey

doi:10.1061/9780784481592.037

Investigative Study of Behaviour of Treated Expansive Soil Using Empirical Correlations

Eyo Umo Eyo, Samson Ngambi, Samuel Abbey

School of Energy, Construction and Environment

Research output: Chapter in Book/Report/Conference proceeding › Conference proceeding › peer-review

8 Citations (Scopus)

Abstract

In this study, the effect of the soil mixing method on the swelling behaviour of expansive soils is investigated. Recent studies have demonstrated the modification effect of cement and inclusion of by-products such as pulverised fuel ash (PFA) and ground granulated blast furnace slag (GGBS) on the plasticity of expansive soils at a water–to–cement ratio of unity. In this study, the volume change of cement/PFA/GGBS improved expansive soil was evaluated using empirical correlations. One-dimensional oedometer experiment and tests to determine the index properties of both the natural and treated soils were performed. Complimentary numerical modelling of the loaded natural and treated soils using the SoilWorks MIDAS software were also carried out. Analyses of results indicated a significant influence of the binders on the plasticity properties of the expansive soil. Results obtained by the addition of 10% each of PFA and GGBS to the cement treated expansive soils showed a considerable reduction of plasticity. By using the index property – based correlations, the swelling potential of the treated soils were shown to be effectively reduced in the range of 10–80%. Comparisons with numerical analysis indicated slight variations.

Original language	English
Title of host publication	American Society of Engineers
Subtitle of host publication	International Foundation Congress and Equipment Expo
Publisher	American Society of Civil Engineers (ASCE)
Pages	373-384
Number of pages	11
ISBN (Electronic)	9780784481592
DOIs	https://doi.org/10.1061/9780784481592.037
Publication status	Published - 6 Jun 2018
Event	IFCEE 2018 - Orlando, United States Duration: 5 Mar 2018 → 10 Mar 2018

Conference

Conference	IFCEE 2018
Country/Territory	United States
City	Orlando
Period	5/03/18 → 10/03/18

Bibliographical note

Copyright © and Moral Rights are retained by the author(s) and/ or other copyright owners. A copy can be downloaded for personal non-commercial research or study, without prior permission or charge. This item cannot be reproduced or quoted extensively from without first obtaining permission in writing from the copyright holder(s). The content must not be changed in any way or sold commercially in any format or medium without the formal permission of the copyright holders.

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Cite this

Investigative Study of Behaviour of Treated Expansive Soil Using Empirical Correlations. / Eyo, Eyo Umo; Ngambi, Samson; Abbey, Samuel.
American Society of Engineers: International Foundation Congress and Equipment Expo. American Society of Civil Engineers (ASCE) , 2018. p. 373-384.

Research output: Chapter in Book/Report/Conference proceeding › Conference proceeding › peer-review

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abstract = "In this study, the effect of the soil mixing method on the swelling behaviour of expansive soils is investigated. Recent studies have demonstrated the modification effect of cement and inclusion of by-products such as pulverised fuel ash (PFA) and ground granulated blast furnace slag (GGBS) on the plasticity of expansive soils at a water–to–cement ratio of unity. In this study, the volume change of cement/PFA/GGBS improved expansive soil was evaluated using empirical correlations. One-dimensional oedometer experiment and tests to determine the index properties of both the natural and treated soils were performed. Complimentary numerical modelling of the loaded natural and treated soils using the SoilWorks MIDAS software were also carried out. Analyses of results indicated a significant influence of the binders on the plasticity properties of the expansive soil. Results obtained by the addition of 10% each of PFA and GGBS to the cement treated expansive soils showed a considerable reduction of plasticity. By using the index property – based correlations, the swelling potential of the treated soils were shown to be effectively reduced in the range of 10–80%. Comparisons with numerical analysis indicated slight variations.",

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N2 - In this study, the effect of the soil mixing method on the swelling behaviour of expansive soils is investigated. Recent studies have demonstrated the modification effect of cement and inclusion of by-products such as pulverised fuel ash (PFA) and ground granulated blast furnace slag (GGBS) on the plasticity of expansive soils at a water–to–cement ratio of unity. In this study, the volume change of cement/PFA/GGBS improved expansive soil was evaluated using empirical correlations. One-dimensional oedometer experiment and tests to determine the index properties of both the natural and treated soils were performed. Complimentary numerical modelling of the loaded natural and treated soils using the SoilWorks MIDAS software were also carried out. Analyses of results indicated a significant influence of the binders on the plasticity properties of the expansive soil. Results obtained by the addition of 10% each of PFA and GGBS to the cement treated expansive soils showed a considerable reduction of plasticity. By using the index property – based correlations, the swelling potential of the treated soils were shown to be effectively reduced in the range of 10–80%. Comparisons with numerical analysis indicated slight variations.

AB - In this study, the effect of the soil mixing method on the swelling behaviour of expansive soils is investigated. Recent studies have demonstrated the modification effect of cement and inclusion of by-products such as pulverised fuel ash (PFA) and ground granulated blast furnace slag (GGBS) on the plasticity of expansive soils at a water–to–cement ratio of unity. In this study, the volume change of cement/PFA/GGBS improved expansive soil was evaluated using empirical correlations. One-dimensional oedometer experiment and tests to determine the index properties of both the natural and treated soils were performed. Complimentary numerical modelling of the loaded natural and treated soils using the SoilWorks MIDAS software were also carried out. Analyses of results indicated a significant influence of the binders on the plasticity properties of the expansive soil. Results obtained by the addition of 10% each of PFA and GGBS to the cement treated expansive soils showed a considerable reduction of plasticity. By using the index property – based correlations, the swelling potential of the treated soils were shown to be effectively reduced in the range of 10–80%. Comparisons with numerical analysis indicated slight variations.

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ER -

Investigative Study of Behaviour of Treated Expansive Soil Using Empirical Correlations

Abstract

Conference

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