Question

Which of the following is the function of coarse aggregates?

Select one:

a) Increases the crushing strength of concrete

b) Reduces the cost of concrete, since it occupies major volume

c) Makes the solid and hard mass of concrete with cement and sand

d) All of the above

Answer 1

Correct Options is :d) all of the above

• Coarse aggregate provide additional strength to concrete.because it has maximum crushing strength among all the ingredients of concrete

• Aggregate are the major component of any concrete it constitutes about 70–80% of the volume of concrete .They are easily available and they are economical as compared to cement

• If concrete is made only of cement then concrete will shrink more and much more water will be required.Shrinkage cracks will develop. Increased water content in concrete will cause reduced strength

• Irregularities in the coarse aggregate surface makes strong bond with water ,cement and sand