Civil Engineering - Estimating and Costing - Discussion

Option 3 : 7.5 square meter.

The expected outturn of 2.5 cm concrete floor is 7.50 square meters per mason.

The expected outturn for lime concrete in foundation or floor is 8.50 cubic meters per mason.

The expected out turn of earthwork in an excavation in ordinary soil is 3 cubic meters per mason.

Particulars of Item:

Expected

out-turn (sq. meter).

12 mm Plastering with cement or lime mortar is 8.0.
Pointing with cement or lime mortar is 10.0.
2.5 cm C.C. floor is 7.50.
Sawing hardwood is 4.00.
Sawing of softwood is 6.00.

Explain the correct answer.

18.75/0.25 = 7.5.

As per given building code manuals out-turn for 2.5 cm. 7.5 square metre.

If any one know the basic. So please explain.

1 mason 1 day work = 0.1875m^3.

For 2.5cm, it will be(0.1875/0.025) = 7.5m^2.

Any reference for this?

Here is mistake in question. That is.

2.5cm thick cement conc. Flooring per person per day = 7.5 sq.m.

For 2.5cm flooring, it's 12.50sqm as per the book.

Any reference? where it comes from? Please give details.