Which is better test cylinders or cubes in estimating concrete strength ?
- Thread starter DeepakTewatiya
- Start date
Test cylinders would be the right answer as the specimen is actual at site whereas cubes are filled by lab technicians or workers and hence there is always some deviation due to workmanship.
However, test cylinders are cores taken from actual concrete members and hence would be precise and accurate as compared to cubes.
However, test cylinders are not advised as they damage the concrete member due to core cutting and are only relied upon when the cubes fail and the concrete member in question is a critical member like a column, beam or a slab.
Dnyan Deshmukh
Staff member
Both test can be good for determining the strength of the concrete.
When using cylinder, you need to use a formula to convert the achieved result into those of equivalent to cubes.
When using the cubes your strength determination is Load at failure divided by surface area of the cubes.
Use of cube or cylinder is dependent of the standards which you follows at your country. Above stated statements are for Indian Standards.
Design parameters for structure might change as per the standard methods of determining concrete strength (as i have not used cylinders for concrete, i do not have much idea about it but reading through ASTM standards will give you deep insight of it).
When using cylinder, you need to use a formula to convert the achieved result into those of equivalent to cubes.
When using the cubes your strength determination is Load at failure divided by surface area of the cubes.
Use of cube or cylinder is dependent of the standards which you follows at your country. Above stated statements are for Indian Standards.
Design parameters for structure might change as per the standard methods of determining concrete strength (as i have not used cylinders for concrete, i do not have much idea about it but reading through ASTM standards will give you deep insight of it).
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