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Mustafa Özer - One of the best experts on this subject based on the ideXlab platform.
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Comparison of Liquid Limit values determined using the hard and soft base Casagrande apparatus and the cone penetrometer
Bulletin of Engineering Geology and the Environment, 2009Co-Authors: Mustafa ÖzerAbstract:La Limite de Liquidité est l’un des indices les plus communément utilisés pour les sols. L’étude compare les valeurs de Limites de Liquidité déterminées à l’appareil de Casagrande, avec coupelle rugueuse ou coupelle lisse, et au pénétromètre de consistance. 42 échantillons de sols naturels présentant des valeurs de Limites de Liquidité comprises entre 30 et 105% ont été testés. Les résultats indiquent que les Limites de Liquidité obtenues par l’appareil de Casagrande avec la coupelle lisse sont jusqu’à 5% plus élevés que ceux obtenus avec la coupelle rugueuse. Comparés avec les résultats obtenus au pénétromètre de consistance, les résultats obtenus à l’appareil de Casagrande à coupelle rugueuse sont inférieurs d’environ 70%, tandis que les résultats obtenus à l’appareil de Casagrande à coupelle lisse sont supérieurs d’environ 40%. The Liquid Limit is one of the most commonly used index properties of soils. The study compares Liquid Limit values determined by the hard base and soft base Casagrande apparatus and the cone penetrometer, based on 42 natural soil samples with Liquid Limits varying between 30 and 105%. The results indicated that the Liquid Limits obtained by the soft base Casagrande apparatus are up to 5% higher than those from the hard base apparatus. Compared with the cone penetrometer, the hard base Casagrande apparatus generally gives a lower Liquid Limit for soils with a Liquid Limit of less than about 70% while the soft base Casagrande apparatus gives a higher Liquid Limit for soils with a Liquid Limit of more than some 40%.
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Comparison of Liquid Limit values determined using the hard and soft base Casagrande apparatus and the cone penetrometer
Bulletin of Engineering Geology and the Environment, 2009Co-Authors: Mustafa ÖzerAbstract:The Liquid Limit is one of the most commonly used index properties of soils. The study compares Liquid Limit values determined by the hard base and soft base Casagrande apparatus and the cone penetrometer, based on 42 natural soil samples with Liquid Limits varying between 30 and 105%. The results indicated that the Liquid Limits obtained by the soft base Casagrande apparatus are up to 5% higher than those from the hard base apparatus. Compared with the cone penetrometer, the hard base Casagrande apparatus generally gives a lower Liquid Limit for soils with a Liquid Limit of less than about 70% while the soft base Casagrande apparatus gives a higher Liquid Limit for soils with a Liquid Limit of more than some 40%.
Padma K Bora - One of the best experts on this subject based on the ideXlab platform.
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plastic Limit Liquid Limit and undrained shear strength of soil reappraisal
Journal of Geotechnical and Geoenvironmental Engineering, 2003Co-Authors: Binu Sharma, Padma K BoraAbstract:The concept that plasticity index of soils can be defined as a range of water contents producing a 100-fold variation in undrained shear strength has been experimentally verified with the help of a large number of tests on soils of diverse nature. This has led to the redefinition of the plastic Limit as the water content at which undrained shear strength is around 170 kN/m2. Undrained shear strength of a soil at the Liquid Limit can be considered to be around 1.7 kN/m2. Accordingly, both the Liquid Limit and the plastic Limit have been determined in the present work by a single consistent method, i.e., the Swedish fall cone method. The undrained shear strength-water content relationship has been found to be log-linear for a wide range of water contents beginning from lower than the plastic Limit to higher than the Liquid Limit. This resulted in the formulation of an expression for predicting undrained shear strength of a remolded soil at any water content based solely on its Liquid Limit and plastic Limit.
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Plastic Limit, Liquid Limit and Undrained Shear Strength of Soil—Reappraisal
Journal of Geotechnical and Geoenvironmental Engineering, 2003Co-Authors: Binu Sharma, Padma K BoraAbstract:The concept that plasticity index of soils can be defined as a range of water contents producing a 100-fold variation in undrained shear strength has been experimentally verified with the help of a large number of tests on soils of diverse nature. This has led to the redefinition of the plastic Limit as the water content at which undrained shear strength is around 170 kN/m2. Undrained shear strength of a soil at the Liquid Limit can be considered to be around 1.7 kN/m2. Accordingly, both the Liquid Limit and the plastic Limit have been determined in the present work by a single consistent method, i.e., the Swedish fall cone method. The undrained shear strength-water content relationship has been found to be log-linear for a wide range of water contents beginning from lower than the plastic Limit to higher than the Liquid Limit. This resulted in the formulation of an expression for predicting undrained shear strength of a remolded soil at any water content based solely on its Liquid Limit and plastic Limit.
Binu Sharma - One of the best experts on this subject based on the ideXlab platform.
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plastic Limit Liquid Limit and undrained shear strength of soil reappraisal
Journal of Geotechnical and Geoenvironmental Engineering, 2003Co-Authors: Binu Sharma, Padma K BoraAbstract:The concept that plasticity index of soils can be defined as a range of water contents producing a 100-fold variation in undrained shear strength has been experimentally verified with the help of a large number of tests on soils of diverse nature. This has led to the redefinition of the plastic Limit as the water content at which undrained shear strength is around 170 kN/m2. Undrained shear strength of a soil at the Liquid Limit can be considered to be around 1.7 kN/m2. Accordingly, both the Liquid Limit and the plastic Limit have been determined in the present work by a single consistent method, i.e., the Swedish fall cone method. The undrained shear strength-water content relationship has been found to be log-linear for a wide range of water contents beginning from lower than the plastic Limit to higher than the Liquid Limit. This resulted in the formulation of an expression for predicting undrained shear strength of a remolded soil at any water content based solely on its Liquid Limit and plastic Limit.
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Plastic Limit, Liquid Limit and Undrained Shear Strength of Soil—Reappraisal
Journal of Geotechnical and Geoenvironmental Engineering, 2003Co-Authors: Binu Sharma, Padma K BoraAbstract:The concept that plasticity index of soils can be defined as a range of water contents producing a 100-fold variation in undrained shear strength has been experimentally verified with the help of a large number of tests on soils of diverse nature. This has led to the redefinition of the plastic Limit as the water content at which undrained shear strength is around 170 kN/m2. Undrained shear strength of a soil at the Liquid Limit can be considered to be around 1.7 kN/m2. Accordingly, both the Liquid Limit and the plastic Limit have been determined in the present work by a single consistent method, i.e., the Swedish fall cone method. The undrained shear strength-water content relationship has been found to be log-linear for a wide range of water contents beginning from lower than the plastic Limit to higher than the Liquid Limit. This resulted in the formulation of an expression for predicting undrained shear strength of a remolded soil at any water content based solely on its Liquid Limit and plastic Limit.
D. J. Stephens - One of the best experts on this subject based on the ideXlab platform.
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The use of a modified Liquid Limit for swell prediction
Civil Engineer in South Africa, 1992Co-Authors: D. J. StephensAbstract:The existing methods for the identification and classification of expansive soils using the common soil classification parameters appear inadequate. This note proposes the use of a modified Liquid Limit that has already been successfully applied to predict California bearing ratio (CBR). The relationship between this 'equivalent' Liquid Limit, CBR swell and percentage clay for a series of synthetic soils is examined and the ensuing swell prediction equation shown to give satisfactory results for some natural soil samples.
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The use of a modified Liquid Limit for swell prediction : technical paper
Civil Engineer in South Africa, 1992Co-Authors: D. J. StephensAbstract:The existing methods for the identification and classification of expansive soils using the common soil classification parameters appear inadequate. This note proposes the use of a modified Liquid Limit that has already been successfully applied to predict California bearing ratio (CBR). The relationship between this 'equivalent' Liquid Limit, CBR swell and percentage clay for a series of synthetic soils is examined and the ensuing swell prediction equation shown to give satisfactory results for some natural soil samples.
Suksun Horpibulsuk - One of the best experts on this subject based on the ideXlab platform.
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Determination of Liquid Limit of a low swelling clay using different cone angles
Applied Clay Science, 2016Co-Authors: Nazaneen Ahmed Nasroulla, Ahmad Safuan A. Rashid, Roohollah Kalatehjari, Khairul Anuar Kassim, Norhazilan Md Noor, Suksun HorpibulsukAbstract:The fall cone test is one of the most popular methods used to determine the soil Liquid Limit. In this study, a series of laboratory tests were conducted on kaolin soil, which is considered representative of low-swelling clays, in order to determine the penetration depths for different cone parameters (angle and weight) under a Liquid Limit state. The required soil undrained shear strength of kaolin at Liquid Limit was determined using a hand-held vane shear device. Based on the analysis of the test results, the relationship between the angle of the fall cone and the ratio of undrained shear strength and fall cone penetration depth over cone weight was obtained and represented by a power function. The established relationship was then used to determine the penetration depth at Liquid Limit for different cone parameter values. A difference in Liquid Limit of less than 15% was recorded between tests using standard and alternative cone parameter values, respectively. Furthermore, a better and more reliable result was obtained when cone angles were below 90°, with a standard deviation of less than 2.5% from the standard method. Based on critical analysis of the test data, an equation with which to determine the penetration depth under a Liquid Limit state, as well as a one-point test method with which to determine the Liquid Limit for different cone parameter values are proposed for low-swelling clays.
