Determine The Liquid Limit Of Soil. This test is done to determine the liquid limit of soil as per IS: 2. Part 5) – 1. 98. 5. The liquid limit of fine- grained soil is the water content at which soil behaves practically like a liquid, but has small shearstrength. It’s flow closes the groove in just 2. Casagrande’s liquid limit device. The apparatus used : -i) Casagrande’s liquid limit deviceii) Grooving tools of both standard and ASTM typesiii) Oveniv) Evaporating dishv) Spatulavi) IS Sieve of size 4.
The Atterberg limits are a basic measure of the. and liquid limit. As. Soil is placed into the metal cup portion of the device and a groove is made down its. ZI 3006 Liquid Limit Device (Motorised) : ZI 3006 IS 2720 (PART V), BS 1377-2, ASTM D 4318 SPECIFICATION: Casagrande method in mechanical form is known as liquid.
Weighing balance, with 0. Wash bottleix) Air- tight and non- corrodible container for determination of moisture content. PREPARATION OF SAMPLEi) Air- dry the soil sample and break the clods. Remove the organic matter like tree roots, pieces of bark, etc. About 1. 00g of the specimen passing through 4. IS Sieve is mixed thoroughly with distilled water in the evaporating dish and left for 2.
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Procedure to Determine The Liquid Limit Of Soil i) Place a portion of the paste in the cup of the liquid limit device. Level the mix so as to have a maximum depth of 1cm. Draw the grooving tool through the sample along the symmetrical axis of the cup, holding the tool perpendicular to the cup. For normal fine grained soil: The Casagrande’s tool is used to cut a groove 2mm wide at the bottom, 1.
For sandy soil: The ASTM tool is used to cut a groove 2mm wide at the bottom, 1. After the soil pat has been cut by a proper grooving tool, the handle is rotated at the rate of about 2 revolutions per second and the no. Take about 1. 0g of soil near the closed groove and determine its water contentviii) The soil of the cup is transferred to the dish containing the soil paste and mixed thoroughly after adding a little more water. Repeat the test. ix) By altering the water content of the soil and repeating the foregoing operations, obtain at least 5 readings in the range of 1. Don’t mix dry soil to change its consistency. Liquid limit is determined by plotting a ‘flow curve’ on a semi- log graph, with no. REPORTING OF RESULTSReport the water content corresponding to 2.
This test is done to determine the liquid limit of soil as per IS: 2720. Casagrande’s liquid limit device ii) Grooving tools of both standard and ASTM types. Place a portion of the paste in the brass cup of the liquid limit (Casagrande) device (Figure 2. Different methods used to determine Atterberg Limits 4. Application. 4 Liquid Limit by Casagrande Method (1) - Free download as Word Doc (.doc), PDF File (.pdf), Text file (.txt) or read online for free. Geo technical engineering.
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A sample ‘flow curve’ is given as.