by Page Contents
Apparatus Required
- Compression testing machine
- Concrete cube mould & Cement mortar cube mould
The procedure of the test
- Check the oil level of the compresive testing machine, set the load cell to zero.
- Place the concrete cube specimens (150mm×150mm×150mm) in between the platens at the center position. The test specimen should be placed in such a way that the load shall be applied to opposite sides of the cubes as cast, which is not at the top and bottom.
- The load shall be applied without shock and increased continuously at a rate of 140Kg/sq.cm/min until the resistance of the specimen to the increasing load breaks down and no greater load can be sustained.
- Release the pressure and repeat the same for the next sample.
- The measured compressive strength of the specimen shall be calculated by dividing the maximum load applied to the specimen during the test by the cross-sectional area of concrete cube and shall be expressed to the nearest N/Sq mm.
Datasheet for compressive strength test of concrete cubes
