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Criteria of acceptance for constant rate of strain consolidation test for tropical cohesive soil

In this study, the rapid consolidation equipment (RACE) was developed as an alternative device to the conventional consolidation test using Oedometer, consuming merely a few hours for the whole precedure to determine the consolidation characteristics of cohesive soil. RACE operates based on the cons...

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Main Authors:	Kassim, Khairul Anuar, A. Rashid, Ahmad Safuan, Kueh, Ahmad Beng Hong, Yah, Chong Siaw, Siang, Lam Chee
Format:	Article
Published:	Springer International Publishing 2016
Subjects:	TA Engineering (General). Civil engineering (General)
Online Access:	http://eprints.utm.my/id/eprint/69108/ http://dx.doi.org/10.1007/s10706-016-0016-8
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spelling	my.utm.691082017-11-20T08:52:13Z http://eprints.utm.my/id/eprint/69108/ Criteria of acceptance for constant rate of strain consolidation test for tropical cohesive soil Kassim, Khairul Anuar A. Rashid, Ahmad Safuan Kueh, Ahmad Beng Hong Yah, Chong Siaw Siang, Lam Chee TA Engineering (General). Civil engineering (General) In this study, the rapid consolidation equipment (RACE) was developed as an alternative device to the conventional consolidation test using Oedometer, consuming merely a few hours for the whole precedure to determine the consolidation characteristics of cohesive soil. RACE operates based on the constant rate of strain (CRS) consolidation theory, which is a continuous loading method of testing, requiring a good estimation of the loading rate such that it is ideal for the achievement of steady state condition during testing. The steady state condition is achieved when the cv values from drained and undrained face of CRS converged with the cv from Oedometer test. A slightly modification has been made on the normal constant rate of strain (CRS) test by proposing a direct back pressure system to the specimen using a tube to saturate the soil sample. This research has produced a set of criteria for determining the suitable rate for the rapid consolidation test based on the ratio of normalized strain rate, β, and proposed a new coefficient in terms of a ratio of β to clay fraction (CF), as a part of new criteria for testing a fine soil. Four types of sample were tested with different rates of strain using the RACE and their results were compared with those conducted using the Oedometer on the same soil type, from which fairly good agreements were evident in many specimens. It was found from the study that the minimum value of normalized strain rate, β, for the CRS test is 0.005 and for the ua/σv ratio is suggested as 0.01. Also, the maximum β/CF for soils with clay friction lower and higher than 50 % are 0.008 and 0.001, respectively. The minimum β/CF value for both conditions is 0.0001. Springer International Publishing 2016 Article PeerReviewed Kassim, Khairul Anuar and A. Rashid, Ahmad Safuan and Kueh, Ahmad Beng Hong and Yah, Chong Siaw and Siang, Lam Chee (2016) Criteria of acceptance for constant rate of strain consolidation test for tropical cohesive soil. Geotechnical and Geological Engineering, 34 (4). pp. 931-947. ISSN 0960-3182 http://dx.doi.org/10.1007/s10706-016-0016-8 DOI:10.1007/s10706-016-0016-8
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) Kassim, Khairul Anuar A. Rashid, Ahmad Safuan Kueh, Ahmad Beng Hong Yah, Chong Siaw Siang, Lam Chee Criteria of acceptance for constant rate of strain consolidation test for tropical cohesive soil
description	In this study, the rapid consolidation equipment (RACE) was developed as an alternative device to the conventional consolidation test using Oedometer, consuming merely a few hours for the whole precedure to determine the consolidation characteristics of cohesive soil. RACE operates based on the constant rate of strain (CRS) consolidation theory, which is a continuous loading method of testing, requiring a good estimation of the loading rate such that it is ideal for the achievement of steady state condition during testing. The steady state condition is achieved when the cv values from drained and undrained face of CRS converged with the cv from Oedometer test. A slightly modification has been made on the normal constant rate of strain (CRS) test by proposing a direct back pressure system to the specimen using a tube to saturate the soil sample. This research has produced a set of criteria for determining the suitable rate for the rapid consolidation test based on the ratio of normalized strain rate, β, and proposed a new coefficient in terms of a ratio of β to clay fraction (CF), as a part of new criteria for testing a fine soil. Four types of sample were tested with different rates of strain using the RACE and their results were compared with those conducted using the Oedometer on the same soil type, from which fairly good agreements were evident in many specimens. It was found from the study that the minimum value of normalized strain rate, β, for the CRS test is 0.005 and for the ua/σv ratio is suggested as 0.01. Also, the maximum β/CF for soils with clay friction lower and higher than 50 % are 0.008 and 0.001, respectively. The minimum β/CF value for both conditions is 0.0001.
format	Article
author	Kassim, Khairul Anuar A. Rashid, Ahmad Safuan Kueh, Ahmad Beng Hong Yah, Chong Siaw Siang, Lam Chee
author_facet	Kassim, Khairul Anuar A. Rashid, Ahmad Safuan Kueh, Ahmad Beng Hong Yah, Chong Siaw Siang, Lam Chee
author_sort	Kassim, Khairul Anuar
title	Criteria of acceptance for constant rate of strain consolidation test for tropical cohesive soil
title_short	Criteria of acceptance for constant rate of strain consolidation test for tropical cohesive soil
title_full	Criteria of acceptance for constant rate of strain consolidation test for tropical cohesive soil
title_fullStr	Criteria of acceptance for constant rate of strain consolidation test for tropical cohesive soil
title_full_unstemmed	Criteria of acceptance for constant rate of strain consolidation test for tropical cohesive soil
title_sort	criteria of acceptance for constant rate of strain consolidation test for tropical cohesive soil
publisher	Springer International Publishing
publishDate	2016
url	http://eprints.utm.my/id/eprint/69108/ http://dx.doi.org/10.1007/s10706-016-0016-8
_version_	1643656003911155712
score	13.211869

Criteria of acceptance for constant rate of strain consolidation test for tropical cohesive soil

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