Estimating the budget is much needed before the
construction of home and after the structural designing of building. Estimating
the budget in case of construction is always difficult for the land owners, but
we had made it is easier by covering the important aspect in the previous
article. But there is another important deciding factor for the cost of
construction is your material requirement for the construction of your house. For
that you need to know what will be your material requirement for the
construction of your house i.e Planning material requirement.
Planning
material requirement:
For the planning
of material we are dividing material requirement for each job.
1)Slab casting
2)Brickwork
3)Plaster work
1)Slab
casting(slab size 900 square feet, thickness 4”)
Material requirement for concrete
Table A


Concrete mix

Water & cement ratio

Water in litre per bag of cement

Cement(Bags)

Sand
(cubic metre)

Stone aggregates (cubic metre)

1:1:2

0.35

17.5

11.2

0.4

0.8

1:1.5:3

0.42

21

8

0.42

0.83

1:2:4

0.55

27.5

6.2

0.43

0.87

1:3:6

0.75

37

4.4

0.45

0.9

1:4:8

0.95

47.5

3.3

0.46

0.93


Slab work:
For concrete ratio 1:1:5:3
Concrete quantity= 900x4/12 cubic feet = 300 cubic feet =
300/35.5 cubic metres = 8.5 cubic metres
Please refer to Table A and calculate the required quantity
of all the ingredients:
Cement = 8.5x8 = 68 bags
Sand = 8.5x0.42 = 3.57 cubic metres
Gitti = 8.5x0.83 = 7.01 cubic metres
2)Brickwork(300 square feet, wall thickness is 8")
Material requirement for 1 cubic metre of Brickwork
Table B


Mortar

Cement (Bags)

Sand (Cubic metre)

1:3

2:6

0.267

1:4

1:9

0.275

1:6

1:4

0.299

1:8

1:1

0.308


If we are choosing the mortar ratio 1:6 then material requirement for brick work will be
Brick work quantity = 300x8/12 cubic feet = 200 cubic feet =
200/35.5 cubic metres
= 5.67 cubic metres
Fir this, refer to Table B to calculate the quantities:
Cement = 5.67x1.4 = 8 bags
Sand = 5.67x0.299 = 1.7 cubic metres
Bricks = 5.67x500 = 2835 numbers
3)Plaster work(200 square feet, 1/2 inch thickness)
Material requirement for 100 square metre of plaster of 12 mm (1/2 inch) thickness
Table
C


Mortar

Cement
(Bags)

Sand
(cubic metre)

1:2

21

1:4

1:3

15

1:5

1:4

12

1:6

1:6

9

1:8


If we are choosing the mortar ratio 1:4, then material requirement will be:
0.5
inch thick plaster area = 200 square feet = 200/10.76 square metres = 18.6
square metres Referring to Table C,
Cement
= 18.6x12/100= 0.3cubic metres
Sand
= 18.6/1.6x100 = 0.3 cubic metres
Remember
to add 5 to 8% for wastage always.
Here we have provided you a detail insight with which you can calculate your material requirement for home construction.So readers comment bellow by what additional method you calculate your material requirement.