Answer / santosh singh

at ground floor .....near vehicle

Answer / balakrishna bedudoori

I think the ideal location for cube casting is near Slab
casting at 40th floor, because if we take concrete from RMC
vehicle at ground floor, free falling height of concrete
from the vehicle to the ground is generally more than 1.5m,
which can lead to seggregation of concrete, which is not
good for taking moulds.

Answer / sumit

If Gap between TM chute and Ground floor more than 1.5
Mtr.so you not permitted cube casting on ground floor.
then the option is cube casting on 40th floor

Answer / prasanna

Since atleast 6 cubes are taken for a batch of concrete, it
is advisable to take 3 each at both location, so that we get
clarity on workability of concrete.Average result of these 6
cubes will hold good.

Answer / jyoti ranjan

actually it should be what type of conc. we r going to pour at a area,weather it is M35 and above then it must be in g floor but cube must be cast at pouring point.

Answer / sobhanbabu

at the 40th floor only.pumping jurney takes nearly 10
minutes.during pumping heat generates.

Answer / sudhir shetty

Its at the ground floor because during pumping there will be
some loss of slurry etc which is calculated during designing
of structure after which required strength is calculated. If
its taken in 40th floor u will not get the perfect sampling.

why we use for testing of compression strength concrete the size of specimen 150x150x150. why we are not using another dimension like 100x150x100 uneven dimension.

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