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The expected out turn of cement concrete 1 : 2 : 4 per mason per day is ________(a) 6.5 m^3(b) 1.5 m^3(c) 2.5 m^3(d) 5.0 m^3This question was posed to me by my college director while I was bunking the class.The above asked question is from Residential Accommodation for Various Classes of Employees in section Planning of Building and Colony of Civil Engineering Drawing

Answer»

The correct option is (d) 5.0 m^3

To elaborate: 1 : 2 : 4 concrete, 1m^3 NEED LABOUR constant.

Mixing concrete – 3.00 hour/m^3.

Lifting and carrying concrete – 1.20 hour/m^3.

compacting concrete – 0.80 hour/m^3.

leveling SURFACE of concrete – 0.10 hour/m^3.

Total = (3+1.2+0.8+0.1) = 5.



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