Question { NBCC, 3246 }

Explination of Expenwion Joints and Construction Joints in
Panel casting of Causways?

Answer

EXPANSION JOINTS:
Expansion joints are constructed to allow the expansion of concrete in summer. If we do not provide these joints there will be development of unnecessary stresses in the pavement.

CONTRACTION JOINTS;
Contraction joints are used release the temperature stresses. In summer temperature stresses are contraction. so there is no problem of temp. stresses as total design stress is reducing with increasing in compaction stress.
but during winter tem. stresses are tension type. design stress or critical stress is more with increase of temp stress . That's why we should have small length panels.so we provide constraction joints.

Question { MahaGenco, 14047 }

How calculate Load Bearing Capacity of Soil?

Answer

Bearing capacity of soil mainly calculated by using two methods..
1) terizaghi equation
2) dynamic formulae

Question { NBCC, 7860 }

what is ment by water cement ratio

Answer

Water cement ratio is the ratio of weight of water to weight of cement has to be used in cement concrete mix.. Strength,workability of concrete mainly depends on this.

Question { NBCC, 8869 }

what is tacheometry?

Answer

Tacheometry is type of surveying in which we are going to calculate heights of objectives and reduced levels of ground using simple mathematical relations.That is trignometrical relations.

Question { ACC, 7763 }

What are the different types of piles?

Answer

1.friction piles
2.end bearing piles
3.combined piles
4.tension piles
5.anchored piles
6.compacting piles

Question { NBCC, 12260 }

How to calculate the number of reinforcing bars in a slab

Answer

Actually we not required calculate number of bars in a slab. We require only spacing of bars..
if we actually want to calculate number of bars..
Then
number of bars=(B/s)+1
B= length of slab
s= spacing of bars