Course Learning Objectives:
This course will enable students to;
1. To carry out laboratory tests and to identify soil as per IS codal procedures
2. To perform laboratory tests to determine index properties of soil
3. To perform tests to determine shear strength and consolidation characteristics of soils
Modules
1. Field identification of soil, Specific gravity test (pycnometer and density bottle method).Water content determination by oven drying and Pycnometer method, rapid moisture meter method.
2. Grain size analysis
i. Sieve analysis
ii. Hydro meter analysis
3. In-situ density tests
i. Core-cutter method
ii. Sand replacement method
4. Consistency limits
i. Liquid limit test(by Casagrande's and cone penetration method)
ii. Plastic limit test iii. Shrinkage limit test
5. Standard compaction test (light and heavy compaction)
6. Co-efficient of permeability test
i. Constant head test
ii. Variable head test
7. Shear strength tests
i. Unconfined compression test
ii. Direct shear test
iii. Triaxial test (unconsolidated undrained test only)
8. Consolidation test :To determine pre consolidation pressure only(half an hour per loading-test).
9. Laboratory vane shear test
10. Demonstration of Swell pressure test, Standard penetration test and boring equipment
Course outcomes:
Students will be able to conduct appropriate laboratory/field experiments and interpret the results to determine
1. Physical and index properties of the soil
2. Classify based on index properties and field identification
3. To determine OMC and MDD, plan and assess field compaction program
4. Shearstrengthandconsolidationparameterstoassessstrengthanddeformationcharacteristics
5. In-situshear strength characteristics(SPT-Demonstration)
Question paper pattern:
Reference Books:
1. Punmia B C, Soil Mechanics and Foundation Engineering-(2017),16th Edition, Laxmi Publications co., New Delhi.
2. Lambe T.W., “Soil Testing for Engineers”, Wiley Eastern Ltd., New Delhi.
3. Head K.H., “Manual of Soil Laboratory Testing” Vol. I, II, III, Princeton Press
4. BowlesJ.E.,“EngineeringPropertiesofSoilandTheirMeasurements”,-McGrawHillBookCo.NewYork.
5. Relevant BIS Codes of Practice: IS-2720 series