HOW MANY CUBES REQUIRED FOR 7 AND 28 DAYS TEST FOR ALL MIX
GRADES.
Answer Posted / santosh kumar namdev
As per IS 456:2000 for 28 days
concrete in cmt no of samples(3 cubes)
1) 1 to 5 1
2) 6 to 15 2
3) 16 to 30 3
4) 31 to 50 4
5) 51 and above 4 plus one additional sample for
each additional 50 cmt Or nomber of 06 sample of concrete
cube 03 of 7Days and 3 of 28 Days individual Avg. compressive
strength +/- 15 %
| Is This Answer Correct ? | 5 Yes | 0 No |
Post New Answer View All Answers
List out some of the software used in the construction sector to estimate cost and monitoring expenses?
how i convert mm into standard wire guage (SWG)no.
how pumping of concrete effects the quantity of material used in it?
What is the Roll of Water Bonding under VDF road?
As in practice, we are deducting every 2d for 90 degree bend but from where it comes means derivation or reference of IS Code.
Before casting a basement roof slab which is connected with retaining wall surcharge load (i.e. sand or earth filling) outside the retaining wall is prohibited because of––
in one SQM plaster how much Cement and sand consumed in ratio 1:4
Kindly post me previous year interview questions with answer for post of DY. Manager (civil engg.) for GAIL, NTPC, IOC, OIL and ONGC etc.
how to calculate the rebar depth if forgot the foundation reinforcement (main steel)? is that any calculation or formula we have data sheet of supplier what depth what is the pull out capacity is mensioned in data sheet. if any IS code than its help full to me.
What the advantages and disadvantage of using 90mm and 100mm bricks for a wall of a house? Thanks for any input.
Write short note on construction programme for pile foundation.
Define What happens to Load at yielding ?
What is meaning of Canceled/Flat Beam. What is difference between them? Both type of beam can bear same load if size (width)of the flat beam is increases and depth is same as slab thickness? Kindly suggest to me.
What is packing Factor ?
what is the construction cost for per cft of multistorryed building in kolkata?