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Estimating and Costing

Q1: A cement concrete road is 1000 m long, 8 m wide and 15 cm thick over the sub-base of 10 cm thick gravel. The box cutting in road crust is

A 500 m3

B 1000 m3

C 1500 m3

D 2000 m3

ANS:C - 1500 m3

Quantity of cc road = 1000*8*0.15 = 1200 cum.
Quantity of sub-base gravel = 1000*8*0.10 = 800 cum.
Tt. Quantity = 1200 + 800 = 2000 cum.
Formulae for cut-off volume = (1/4)*2000,
= 500 cum.

Box cutting in road crust = 2000-500,
= 1500 cum.
Hence, 1500 cum is the total volume for box cutting in road crust.



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