Cost
is the important criteria in every project. It should not higher than the
existing project. In this project, cost was calculated only for the successive
6 proportions. And cost for production of 1 lakh brick was calculated. From
that, cost of one brick was calculated. The following steps were involved in
cost calculation.
o
First the density of all materials were
calculated in Kg/m3.
Density of
materials
|
Material
|
Density(Kg/m3)
|
|
Cement
|
1,430
|
|
Sand
|
1,548
|
|
Fly ash
|
694
|
|
Rice husk ash
|
192
|
|
Paper
|
120
|
|
Earth
|
1,542
|
o
Then the cost of all the materials per Kg. was
calculated.
Cost of materials
|
Materials
|
Cost
per Kg (Rs )
|
|
Cement
|
3.5
|
|
Sand
|
0.50
|
|
Fly ash
|
0.10
|
|
Rice husk ash
|
-------
|
|
Paper
|
1.00
|
|
Earth
|
0.10
|
o
After that, the volume of the mould was
multiplied by 1 lakh to get the total volume of 1 lakh brick.
o
According to the proportion, volume of all the
materials were calculated in ‘m3’
o
Then the volume of the particular material was
multiplied with its density. This gave total quantity of individual material in
‘Kg’
o
Now the
amount of material was multiplied with its cost. This gave the total cost of
material.
o
Labour and manufacturing cost was assumed as 10%
of material cost.
o
By adding the material and labour cost gave the
cost 1 lakh brick. From that cost of individual brick was calculated.
Here
the amount of water used in this project
was not considered for cost calculation. While calculating the paper volume,
only dry volume of paper was calculated. We observed that only 40% dry paper was present in paper
volume. Remaining 60% was occupied by water.
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