Interested to Buy Any Domain ? << Click Here >> for more details...
How to calculate compressive strength of concrete?
- 15 Answers
- 286459 Views
- UPPCL, I also Faced
- E-Mail Answers
Answer Posted / sathyanathan
Sample taken from the Concrete mix is First made into
required number of Cubes of nominal dimension (150 mm x 150
mm)and allowed to set for one day. The after removing the
sett cubes from the mould -after attaining final setting,
the cubes are then named with - Grade, Date of casting and
date of testing to be done and then put in curing tank.
Then required number of cubes are taken out on Seventh day
and tested in Compression testing Machine. and the same
process repeated after 28 days.
The Strength achieved is calculated as The Load at
Breakage/The Surface Area of the Cube.
For 7th day test the Strength achieved should be above 70%
of the Grade Strength of the Concrete and 28 th day should
be 120% of the Grade Strength.
| Is This Answer Correct ? | 167 Yes | 84 No |
Post New Answer View All Answers
A rock anchor 3 1/2” in diameter is placed in rock. The which has an allowable shear strength of 1200 psi. Determine the required anchorage length to safely carry a 80 ton load using a 2.0:1 F.S
What is thumb rule in quantity and cost estimation of a residential building in civil engineering??
What is the unit standard weight,thicknessof C.I>Pipe of various Dia upto200 MM(as per IS1538)
Spider cracks occur in beam bottom due to––
HOw much % of premium on DSR-2013 currently
in 100 cft = 1350 bricks in 100 cft = ? bloks
what is right & short method of measurement of slab&beam
How can explode a block?
how to calculate testing date
Explain what is structural frames or systems?
Who designed the city of washington dc?
how many digree of freedom in four bar chain
what is concrete canvas?
For elevated service Reservoirs what will be the output of each skilled carpenter and bar bender.
What is standard Sand? What is Regime condition? What do you mean by the core trench in Earthen Dasm? What is soundness test for cement? When negetive shear force takes place in a R.C.C member?
