we can define the compression strength of structure by cube. if we can not get sufficient strength of cube so we should hamaour bond test, NDT, Core test. means we can preparation by cube test.
By compression tst:)
The importance of slump test in concrete work is to ensure consistency in the concrete. The test measures the workability of the concrete.
concrete core test
The concrete slump test is used to measure an aspect of concrete. This test is used to measure the workable of concrete as well as its freshness and health.
It depends on the intended use, ranging from 25N/mm2 for concrete in a dry internal environment say an office floor slab. Up to 50N/mm2 for a large reinforced concrete arch dam.
Concrete has a density of approx. 2400 kg/m3 . A cube of concrete 150mm3 is 0.15m3.As such it's mass is 2400 x 0.15 = 360 kg.It's weight is 360 x 9.81 = 3531.6 Newtons.
concrete cube of 15x15x15 is used fortesting compressive strength.durability testeffloresence test.
6
0.2
A metre cube of concrete is a volume of concrete which is equivalent to the volume of a cube each of whose sides are 1 metre long.
P. Foote has written: 'The comparative cube test' -- subject(s): Concrete, Testing
With regards to concrete strength, a cylinder test strength is usually between 5 and 25 percent less than a cube test strength. You can also try using this equation: fbk=(fck-1.77)/0.83 where fbk is cubic concrete strength and fck is cylindrical strength.
The standard for concrete cube testing is to put the cube under increased pressure. The pressure is increased until the cube breaks and determines the cubes compression strength.
Cylindrical strength = 85% of Cube strength.
The importance of slump test in concrete work is to ensure consistency in the concrete. The test measures the workability of the concrete.
The importance of slump test in concrete work is to ensure consistency in the concrete. The test measures the workability of the concrete.
concrete core test
The concrete slump test is used to measure an aspect of concrete. This test is used to measure the workable of concrete as well as its freshness and health.