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Structural Design Specifications - Engineering

Q1:

Generally acceptable nominal size of aggregates for reinforced concrete, is

A 10 mm

B 15 mm

C 20 mm

D 25 mm

E 40 mm

ANS:C - 20 mm

Aggregates are used in nominal sizes 10mm 20mm and 40mm.

=> 10mm for flooring
=> 20 mm for RCC
=> 40mm in mass concrete work
The Size of aggregates can also be decided on the basis of reinforcement, min distance.