Reference IS-10050-1981-Method for determination of slake durability index of rocks. Objective This test is done to find out the resistance offered by a rock sample to weakening and disintegration when subjected to two standard cycles of drying and wetting in a slaking fluid usually water. Apparatus used NAME OF EQUIPMENT CAPACITY LEAST COUNT/ACCURACY Balance As … Read more
Reference IS-13030-1991- Method of test for laboratory determination of water content, porosity, density and related properties of rock material. Objective Determination of mass of water contained in a rock sample. Apparatus used Name of equipment Capacity Least count/Accuracy Oven 105±30C 10C Balance As per requirement 0.01% of the sample Procedure Clean the container and … Read more
Reference IS-9143-1979-Method for the determination of unconfined compressive strength of rock materials Objective The objective of this test is to determine unconfined compressive strength of rock. This test is primarily done to classify the rock on the basis of strength. Apparatus used Name of equipment Capacity Least count/Accuracy Loading Machine 5000 kN 2.5 N Vernier … Read more
Objective For determination of free swell index of soils Reference Standard IS: 2720(Part 40)-1985- Methods of test for soils: Determination of free swell index of soil. Equipment / Apparatus Oven(1050C to 1100C, min) Balance (0.01g accuracy) Sieve [425 micron] Graduated glass cylinder [100ml capacity] Preparation sample The soil passing 425 micron sieve is used in … Read more
Objective For determination of linear shrinkage of soil Reference Standard IS: 2720(Part 20)-1966- Methods of test for soils: Determination of linear shrinkage. Equipment / Apparatus Mould Oven Preparation sample A sample weighing 150g from thoroughly mixed portion of bulk material passing 425 micron IS sieve is prepared. Procedure The mould is thoroughly cleaned and a … Read more
Objective Determination of CBR of soil either in undisturbed or Remoulded condition Reference Standards IS: 2720(Part 16)-1973- Methods of test for soils: Laboratory determination of CBR. Equipments / Apparatus Compression machine Proving ring, Dial gauge, Timer Sampling tube Split mould Vernier caliper, Balance Preparation sample The test may be performed (a) On undisturbed soil specimen … Read more
Objective Determination of shear strength parameters of a silty or sandy soil at known density and moisture content. Reference Standards IS: 2720(Part 13)-1986- Methods of test for soils: Direct shear test. Equipment / Apparatus Shear box Box container Porous stone and grid plate Tamper, Balance , Sieve(4.75 mm) Loading frame, Proving ring, Dial gauge. Preparation … Read more
Objective For determination of the relation between the water content and the dry density of soils using light compaction. Reference Standard IS: 2720(Part 7)-1980- Methods of test for soils: Determination of water content-dry density relation using light compaction. Equipments & Apparatus Cylindrical mould & accessories [volume = 1000cm3] Rammer [2.6 kg] Balance [1g accuracy] Sieves … Read more
Objective For determination of the shrinkage limit of soil. Reference Standards IS : 2720(Part 6)-1972 Methods of test for soils : Determination of shrinkage factor. Equipment & Apparatus Oven Balance Sieve Mercury Desiccator Preparation sample The soil passing 425 micron sieve is used in this test. Procedure 100 gm. of soil sample from a thoroughly … Read more
Objective For determination of the plastic limit of soil. Reference Standard IS : 2720(Part 5)-1985- Methods of test for soils : Determination of liquid and plastic limit. Equipment & Apparatus Oven Balance (0.01 g accuracy) Sieve [425 micron] Flat glass surface for rolling Preparation sample After receiving the soil sample it is dried in air … Read more