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

Constant rate of strain (CRS) consolidation test is a new method of consolidation testing in Malaysia. Although it had been widely used as an alternative for standard consolidation test in other countries such as Sweden and the USA, there is still no standard equipment for it. The selection of the s...

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Main Author:	Lam, Chee Siang
Format:	Thesis
Language:	English
Published:	2006
Subjects:	TA Engineering (General) Civil engineering (General)
Online Access:	http://eprints.utm.my/id/eprint/5313/1/LamCheeSiangMFKA2006.pdf
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spelling	my-utm-ep.53132018-10-14T07:19:38Z Criteria of acceptance for constant rate of strain consolidation test for cohesive soil 2006-07 Lam, Chee Siang TA Engineering (General). Civil engineering (General) Constant rate of strain (CRS) consolidation test is a new method of consolidation testing in Malaysia. Although it had been widely used as an alternative for standard consolidation test in other countries such as Sweden and the USA, there is still no standard equipment for it. The selection of the suitable strain rate for the CRS test is still a major hurdle for the geotechnical engineers. The CRS consolidation test has some advantages over the standard consolidation test where the time needed for the test is reduced from two weeks to few hours and the ability to apply high effective pressure at larger sample size. Various guidelines and criteria of acceptance for the CRS consolidation test had been introduced by many researchers. The aim of this research is to establish new criteria of acceptance for the CRS consolidation test. A new developed CRS equipment has been designed and named Rapid Consolidation Equipment (RACE). The equipment was developed using the concept of continuous consolidation test procedure. The criteria of acceptance for the CRS test were based on the normalized strain rate, ÃŸ introduced by Lee (1981) and the ratio of excess pore pressure to applied pressure, (ua/ sv ). It was also established that the maximum ÃŸ to achieve acceptable data is 0.1. The research showed that the minimum value for the ÃŸ and ua/ sv are 0.005 and 0.01 respectively. Another criterion of acceptance for the CRS test which takes into account the clay fraction (CF) effects was also introduced. The clay fraction is used to modify the normalized strain rate ÃŸ, into ÃŸ/CF. Results show that for soil with clay fraction more than 50%, the maximum ÃŸ / CF is 0.001. The maximum ÃŸ / CF for soil with CF lower than 50% is 0.008. 2006-07 Thesis http://eprints.utm.my/id/eprint/5313/ http://eprints.utm.my/id/eprint/5313/1/LamCheeSiangMFKA2006.pdf application/pdf en public http://dms.library.utm.my:8080/vital/access/manager/Repository/vital:61824 masters Universiti Teknologi Malaysia, Faculty of Civil Engineering Faculty of Civil Engineering
institution	Universiti Teknologi Malaysia
collection	UTM Institutional Repository
language	English
topic	TA Engineering (General) Civil engineering (General)
spellingShingle	TA Engineering (General) Civil engineering (General) Lam, Chee Siang Criteria of acceptance for constant rate of strain consolidation test for cohesive soil
description	Constant rate of strain (CRS) consolidation test is a new method of consolidation testing in Malaysia. Although it had been widely used as an alternative for standard consolidation test in other countries such as Sweden and the USA, there is still no standard equipment for it. The selection of the suitable strain rate for the CRS test is still a major hurdle for the geotechnical engineers. The CRS consolidation test has some advantages over the standard consolidation test where the time needed for the test is reduced from two weeks to few hours and the ability to apply high effective pressure at larger sample size. Various guidelines and criteria of acceptance for the CRS consolidation test had been introduced by many researchers. The aim of this research is to establish new criteria of acceptance for the CRS consolidation test. A new developed CRS equipment has been designed and named Rapid Consolidation Equipment (RACE). The equipment was developed using the concept of continuous consolidation test procedure. The criteria of acceptance for the CRS test were based on the normalized strain rate, ÃŸ introduced by Lee (1981) and the ratio of excess pore pressure to applied pressure, (ua/ sv ). It was also established that the maximum ÃŸ to achieve acceptable data is 0.1. The research showed that the minimum value for the ÃŸ and ua/ sv are 0.005 and 0.01 respectively. Another criterion of acceptance for the CRS test which takes into account the clay fraction (CF) effects was also introduced. The clay fraction is used to modify the normalized strain rate ÃŸ, into ÃŸ/CF. Results show that for soil with clay fraction more than 50%, the maximum ÃŸ / CF is 0.001. The maximum ÃŸ / CF for soil with CF lower than 50% is 0.008.
format	Thesis
qualification_level	Master's degree
author	Lam, Chee Siang
author_facet	Lam, Chee Siang
author_sort	Lam, Chee Siang
title	Criteria of acceptance for constant rate of strain consolidation test for cohesive soil
title_short	Criteria of acceptance for constant rate of strain consolidation test for cohesive soil
title_full	Criteria of acceptance for constant rate of strain consolidation test for cohesive soil
title_fullStr	Criteria of acceptance for constant rate of strain consolidation test for cohesive soil
title_full_unstemmed	Criteria of acceptance for constant rate of strain consolidation test for cohesive soil
title_sort	criteria of acceptance for constant rate of strain consolidation test for cohesive soil
granting_institution	Universiti Teknologi Malaysia, Faculty of Civil Engineering
granting_department	Faculty of Civil Engineering
publishDate	2006
url	http://eprints.utm.my/id/eprint/5313/1/LamCheeSiangMFKA2006.pdf
_version_	1747814577108680704

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

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