Experimental study of suction-monitored CBR test on sand-kaolin clay mixture

Conventional laboratory CBR test has been widely used for predicting bearing capacity of subgrade layer for pavement design. In unsaturated soil, suction is one of the key parameters for understanding the soil behavior. The analysis of CBR is commonly presented in CBR-water content relation. The inf...

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Main Authors: Purwana, Y., Nikraz, Hamid, Jitsangiam, Peerapong
Format: Journal Article
Published: The Geomate International Society 2012
Subjects:
Online Access:http://hdl.handle.net/20.500.11937/23766
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author Purwana, Y.
Nikraz, Hamid
Jitsangiam, Peerapong
author_facet Purwana, Y.
Nikraz, Hamid
Jitsangiam, Peerapong
author_sort Purwana, Y.
building Curtin Institutional Repository
collection Online Access
description Conventional laboratory CBR test has been widely used for predicting bearing capacity of subgrade layer for pavement design. In unsaturated soil, suction is one of the key parameters for understanding the soil behavior. The analysis of CBR is commonly presented in CBR-water content relation. The information of CBR based on soil suction is very rare and more study is still required. This paper presents a laboratory experiment of CBR test with direct suction measurement. Suction-monitored CBR test is introduced by attaching tensiometers on CBR mold and its surcharge. The standard compacted test on various proportions of sand-kaolin clay mixtures starting from 0% (pure sand), 5%, 10%, and 20% of clay were used. The tests were performed with different value of water content in both soaked and unsoaked conditions. The results indicated that the CBR versus matric suction forms a bi-linear curve. The discussion is presented in term of CBR-water content and CBR-matric suction relation.
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institution Curtin University Malaysia
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publishDate 2012
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spelling curtin-20.500.11937-237662017-03-08T13:31:45Z Experimental study of suction-monitored CBR test on sand-kaolin clay mixture Purwana, Y. Nikraz, Hamid Jitsangiam, Peerapong bi-linear curve sand-kaolin mixture CBR matric suction Conventional laboratory CBR test has been widely used for predicting bearing capacity of subgrade layer for pavement design. In unsaturated soil, suction is one of the key parameters for understanding the soil behavior. The analysis of CBR is commonly presented in CBR-water content relation. The information of CBR based on soil suction is very rare and more study is still required. This paper presents a laboratory experiment of CBR test with direct suction measurement. Suction-monitored CBR test is introduced by attaching tensiometers on CBR mold and its surcharge. The standard compacted test on various proportions of sand-kaolin clay mixtures starting from 0% (pure sand), 5%, 10%, and 20% of clay were used. The tests were performed with different value of water content in both soaked and unsoaked conditions. The results indicated that the CBR versus matric suction forms a bi-linear curve. The discussion is presented in term of CBR-water content and CBR-matric suction relation. 2012 Journal Article http://hdl.handle.net/20.500.11937/23766 The Geomate International Society restricted
spellingShingle bi-linear curve
sand-kaolin mixture
CBR
matric suction
Purwana, Y.
Nikraz, Hamid
Jitsangiam, Peerapong
Experimental study of suction-monitored CBR test on sand-kaolin clay mixture
title Experimental study of suction-monitored CBR test on sand-kaolin clay mixture
title_full Experimental study of suction-monitored CBR test on sand-kaolin clay mixture
title_fullStr Experimental study of suction-monitored CBR test on sand-kaolin clay mixture
title_full_unstemmed Experimental study of suction-monitored CBR test on sand-kaolin clay mixture
title_short Experimental study of suction-monitored CBR test on sand-kaolin clay mixture
title_sort experimental study of suction-monitored cbr test on sand-kaolin clay mixture
topic bi-linear curve
sand-kaolin mixture
CBR
matric suction
url http://hdl.handle.net/20.500.11937/23766