How can I calculate the Compressive strength of cubes after 28
days of curing?Is there any formula or ration ?
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AS PER IS CODE FORMULA WAS Fck + 1.65 S
Fck - concrete grade
for M 20 ,M 25 grade s value 4
above M 25 s value was 5
| Is This Answer Correct ? | 24 Yes | 5 No |
Answer / mohsin khan
force = load/area
force is the pressure which comes after testing the cube in compressive strength machine and load is the the reading which we note and area is constant i.e 22.5 cm2
| Is This Answer Correct ? | 16 Yes | 2 No |
AS PER IS CODE FORMULA WAS Fck + 1.65 S
Fck - concrete grade
for M 20 ,M 25 grade s value 4
above M 25 s value was 5
| Is This Answer Correct ? | 9 Yes | 2 No |
Answer / m.koti, cosmicon group, vizag
force = load/area
force is the pressure which comes after testing the cube in
compressive strength machine and load is the the reading
which we note and area is constant i.e 22.5 mm2
| Is This Answer Correct ? | 5 Yes | 0 No |
Answer / swetha
COMPRESSIVE STRENGTH OF CONCRETE IS CALCULATED BY= LOAD AT FAILURE OF THE SPECIMEN/AREA OF SPECIMEN(ie 15cm*15cm=225cm)
| Is This Answer Correct ? | 1 Yes | 0 No |
after 28days curing compressive strength 100% achieved that means after 28 days 100% pressure can taken .so pressure=load/area.
load means reading of testing machine.
area =(150*150*150)=22.5 mm2 constant.
| Is This Answer Correct ? | 1 Yes | 1 No |
Answer / done
Seriously I can't believe it. The formulas u r giving is for therotical value of compressive strength . u can calculate that value without making any cube. But for 28 day compressive strength there is machine which applies increasing load untill cube gets failed that load per unit area is nothing but compressive strength. Nowadays we don't have to wait for 28 days as these test are done after 2-3 days on labs n they put these result n their software which will ultimately give the final compressive strength
For more info what's app on 7249474640
| Is This Answer Correct ? | 0 Yes | 0 No |
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