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
can you give me the details of rate analysis of steel and concrete?
A doubly reinforced concrete beam is 25 cm wide and 50cm deep to the centre of tension reinforcement. The centre of compression is steel is 5cm from the compression edge. The areas of the compression and the tension steel are 10.16cm2 and 12.56 cm2 if m=18 and the bending moment at the section is 7,000,000 N-cm. Calculate the stress in concrete and steel.
factory shed foundation l=4, b=3' d=8' rcc foudation for top to bottom pl tell me cement ,steel ,sand ,labour cost ,excavtion,soil is weak not so hard
why we are useing plastic under the lean concrete?and whts the advantage?
flow of fluid takes place viscosity compressibilityu surface tension deformation under shear force
1. For 10sq.m area(47 kg bitumen contain) of 45 mm thick bitumen mix layer..how much bitumen is required for 1600 sq.m and how much aggregate need for that ?? 2. And much tonnage of bitumen mix required for 10 sq.m area of 45 mm thick. Please give answer...
What are the benefits of rcc pipes over steel designed pipes?
construction workers how much time take one work or qty
What are the different softwares used for cad?
how we can find sieve #4 is 4.75mm?
what s the standrd size of pvc fittings ,like elbow, bend,tee etc ? please explain with figure ?
what is Brick crushing strength(PSI)?
What things architect have to take care of before starting any project?
Which is the direction of negative angle?
what is Bearing Capacity,How to determine it?