The operation of rebound hammer is shown in the fig.1. When the plunger of rebound hammer is pressed against the surface of concrete, a spring controlled mass with a constant energy is made to hit concrete surface to rebound back. The extent of rebound, which is a measure of surface hardness, is measured on a(…)
GE Lab Tests
HYDRAULICS LABORATORY EXPERIMENTS
1. CALIBRATION OF VENTURIMETER 2. CALIBRATION OF ORIFICEMETER 3.CALIBRATION OF VARIOUS TYPES NOTCHES 4. META CENTRIC HEIGHT OF A FLOATING BODY 5. DETERMINATION OF DARCY’S & CHEZY’S CONSTANT FOR PIPE FLOW 6. HYDRAULIC COEFFICIENTS OF ORIFICE 7. CALIBRATION OF WATER METER 8. CHEZY’S & MANNING’S COEFFICIENT FOR OPEN CHANNELS 9. VERIFICATION OF BERNAULLI’S THEOREM 10.(…)
SOIL TESTS REQUIRED FOR SHALLOW AND RAFT FOUNDATIONS
Soil tests required to determine safe bearing capacity of shallow foundations and raft foundations are discussed here. These tests are as per IS 6403 – 1981. Apart from ascertaining the highest level ever reached by the ground water table and tests for classification of soil as per IS1498 – 1970 based on grain size analysis(…)
SOIL TESTS REQUIRED FOR DEEP FOUNDATIONS
Deep foundations are those where the depth of foundation is generally greater than two times of width of footing (D = 2B). Deep foundations are required due to various reasons. Read here about why deep foundations are required and types of deep foundations. The soil tests required for deep foundations are: 1. While the composition(…)
COMPRESSIVE STRENGTH OF CONCRETE CUBES
To determine the compressive strength of concrete specimens prepared and to verify the strength requirements as desired in the mix design and stipulated in the IS code.
CHEMICAL TESTS ON CONCRETE STRUCTURES
Chemical analysis of concrete can provide extremely useful information regarding the causes of failure of concrete. The tests most frequently carried out are listed below: Depth of carbonation Chloride content Cement content Sulphate content Type of cement Alkali content Carbonation test This test is carried out to determine the depth of concrete affected due to(…)
MACKINTOSH PROBE TEST
A wide range of dynamic and static penetrometers are available, with different types being used in different conditions of sub-strata materials. However, the objective of all probing is the same, namely to provide a profile of penetration resistance with depth, in order to give an assessment of the variability of in-situ materials on site. Probing(…)
GEOTECHNICAL LABORATORY TESTS
Geotechnical Engineering Laboratory Experiments DIFFERENT TYPES OF SHEAR TESTS AND DRAINAGE CONDITIONS The following tests are used to measure the shear strength of the soil Direct shear test Triaxial compression test Unconfined compression test Vane shear test Depending upon the drainage conditions, there are three types of tests Unconsolidated-Undrained condition Consolidated –… (Continue reading) CALIFORNIA(…)