Labour Requirement For Various Building Works

LABOUR REQUIREMENT FOR VARIOUS BUILDING WORKS:

The table below shows the recommended labour requirement for various civil engineering/building/construction works:  Bhisti Means Water Carrier

S.No.	Description of work	Unit	Labour	Recommended constant in days.	Remarks
1)	Excavation over areas (hard/dense soil),depth up to 1.5m and removal (up to one meter from edge)	M3	Mate	0.06	_
			Labour	0.62	_
2)	Excavation in trenches (soft/ loose soil),for foundations not exceeding 1.5m in width and for shafts, wells, cesspits and the like, not exceeding 10m3 and on plan, depth up to 1.5m and removal(up to one meter away from edge)	M3	Mate	0.05	_
			Labour	0.5	_
3)	Returning, filling and ramming of excavated earth in layers not exceeding 20 cm in depth, watering, well ramming and leveling, lead up to 50m	M3	Mate	0.02	_
			Labour	0.25	_
			Bhisti	0.02	_
4)	Concrete :	M3	Labour	0.5	_
	Mixing by machine (mixer) at banker, cement concrete(with 20mm graded coarse aggregate)		Bhisti	0.1	_
			Mixer operator	0.07	_
			Mixer	0.07	_
5)	Mixer mixed cement concrete	M3	mason	0.1	_
			Labour	1.63	_
			bhisti	0.7	_
			mixer operator	0.07	_
			mixer	0.07	_
			vibrator	0.07	_
6)	Reinforced cement concrete in situ in foundations, footings, bases for columns, etc excluding form work and reinforcement	M3	mason	0.17	The constants for items include mixing, pouring, consolidating and curing. This does not include fair finish.
			Labour	2
			bhisti	0.9
			mixer operator	0.07
			mixer	0.07
			vibrator	0.07
7)	Reinforced cement concrete in situ in suspended floors/roofs excluding form work, and reinforcement.	M3	mason	0.24	_
			Labour	2.5	_
			bhisti	0.9	_
			mixer operator	0.07	_
			mixer	0.07	_
			vibrator	0.07	_
8)	Mortars :	M3	Labour	0.75	Labour required will be approximately same for different mix proportions.
	Mixing by hand, cement mortar of any mix/proportions		Bhisti	0.07
9)	Brick work (straight walls) :	M3	mason	0.94	The constants include labour involved in scaffolding.
	Brick work in walls exceeding one brick thick, in cement / lime mortar		Labour	1.8
			bhisti	0.2
10)	Brick work in walls, one brick thick, in cement/lime mortar	M2	mason	0.25	The constants could be adopted for brick work with any mix or mortar.
			Labour	0.4
			bhisti	0.1
11)	Formwork :	M3	Carpenter	0.25	_
	a) fabrication and erection with all supports, struts, braces, etc, and dressing with oil as cleaning of formwork :	M2	Labour	0.2	_
	1) rectangular column and walls	M2	Carpenter	0.23	_
	2) suspended floors/roofs		Labour	0.2	_
	3) sides and soffits of beam		Carpenter	0.3	_
			Labour	0.2	_
12)	Reinforcement:	Quintal	Bar bender	1	_
	Bar reinforcement including cutting to length, hooked ends, cranking or bending, hoisting and placing in any position, binding wire and holding firmly so as not to be disturbed while placing and ramming of concrete		Labour	1	_
13)	Plastering and pointing :	M2	mason	0.08	_
	a) 15mm thick cement plaster to ceiling including mixing of mortar.	M2	Labour	0.1	_
	b) 15mm thick cement plaster on brick walls (exterior) including mixing of mortar	M2	bhisti	0.1	_
	c) Tuck pointing to random rubble masonry in cement mortar including mixing mortar.		mason	0.06	_
			Labour	0.1	_
			bhisti	0.1	_
			mason	0.1	_
			Labour	0.15	_
			bhisti	0.1	_
14)	Damping proof course :	M3	Mason	0.1	_
	a) Laying damp proof course 40mm thick cement concrete including form work and fair finishing to edges and mixing.		Labour	0.1	_
			bhisti	0.01	_

Size and Quantity of Reinforcement Required For Building Works

Size and Quantity of Reinforcement Rebar Required For Building and Other Commercial Works

Reinforcement is required for reinforced concrete members such as footings, beams, columns, slabs, lintels etc. Estimation of reinforcement quantity is required prior to tendering stage to calculate approximate cost of project or construction work.

Following table gives the estimated quantities of reinforcement and its size generally used for various building works:

Sl. No	RCC Member	Quantity in kg/m3	Size of reinforcement required
1	Column footings	75	10mm  or 12mm
2	Grade beams	100	12mm, 16mm – 85%
			Stirrups – 6mm or 8mm– 15%
3	Plinth beams	125	8mm diameter – 85%,
			Stirrups 6mm – 15%
4	Columns	225	16mm, 20mm and 25mm – 90%
			Ties – 6mm or 8mm – 10%
5	Lintel beam	125	12mm, 16mm dia – 85%
			Stirrups – 6 mm or 8mm – 15%
6	Sunshades	60	8mm dia – 75%
			Distributer – 6mm – 25%
7	Canopy slab upto 2.0 m span	125	10mm dia – 80%
			Distributor bars – 6mm or 8mm – 20%
8	Staircase waist slab	150	12 or 16mm dia – 80%
			Distributor 8mm dia – 15%
9	Roof slab
	(a)  One way slab	80	8mm dia – 70%
			Distributor – 6mm – 30%
	(b)  Two way slab	100	8mm dia – 100%
	(c)  Square slab – 4m to 6m size	150	10 – 12mm dia – 100%
10	Main beams above 6m	250	20mm, 16mm, 12mm – 80 – 85%
			Stirrups – 8mm – 15 – 20%

All above mentioned steel are round tapered steel. This data is just for estimation of quantity of steel for various RCC works. This does not provide actual steel required for all the members. Actual quantity of steel required can be calculated from the drawings prepared after structural design.