Experimental study of suction-monitored CBR test on sand-kaolin clay mixture
MetadataShow full item record
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.
Showing items related by title, author, creator and subject.
Experimental study on unsaturated direct shear and California bearing ratio tests with suction monitoring on sand-kaolin clay mixturesPurwana, Yusep Muslih (2013)The laboratory study on unsaturated soil may comprise the study of devices or apparatus used and the study of the behaviour of soil itself. In both, suction is the main issue of the study’s concern. One of the common ...
Purwana, Y.; Chegenizadeh, Amin; Nikraz, H. (2013)Two very common devices used in unsaturated shear strength tests are suction-controlled direct shear apparatus and triaxial devices. During the tests, matric suction is applied to the specimen by controlling pore air and ...
Determining standard criteria for endotracheal suctioning in the paediatric intensive care patient: An exploratory studyDavies, Kylie; Monterosso, L; Leslie, Gavin (2011)This four-phase mixed method study developed an evidence based ‘‘Endotracheal Suction Assessment Tool’’ (ESAT) as a guide for nurses undertaking ‘‘endotracheal tube’’ (ETT) suction within ‘‘Paediatric Intensive Care’’ ...