Rate Analysis  Plain Cement Concrete (PCC) M10 (1:3:6)
Rate Analysis of PCC 
Rate analysis for Plain Cement Concrete (PCC)
requires estimation of materials for PCC, i.e. quantity of cement, sand
and aggregate required for 1m^{3} for various proportions, i.e., PCC M10 (1:3:6), 1:2:4, etc. So, let us first
calculate quantity of cement, sand and aggregate required for 1m^{3} Plain
Cement Concrete (PCC).
Most knowing point for rate analysis
When
you start doing rate analysis we must remember these points :

Item for rate analysis (Name of the Item i.e.
PCC, RCC, Brickwork etc. )

Specification (type of material, quality of
material etc. )

Unit (per Sqm, Cum, Rm etc.)

Labour

Material

Overhead (Profit for contractor)
Labour
for Plain Cement Concrete PCC work:
1) Skilled
Labour
2) Unskilled
Labour
Material
for Plain Cement Concrete PCC work:
1) Cement
2) Sand
3) Aggregate
Now calculating material
For
1m^{3} of wet or solid Plain Cement
Concrete (PCC) ratio (1:3:6) , we have to multiply with factor 1.52 for dry
density than 1m^{3} become 1.52m^{3} of cement, sand
& aggregate is required, due to presence of voids in sand in dry state. So,
cement sand and aggregate quantity is calculated for 1.52m^{3} of
PCC.
Dry
volume = 1.52 m^{3}
Ratio = 1:3:6
It means we have to
mix 1 unit cement 3 unit sand and 6 unit aggregate than total amount of mix =
1+3+6 (for example M15 (1:2:4)
= 1+2+4= 7)
= 10
Now ,
Volume
of cement = 1.52/10 = 0.152 m^{3}
Volume of sand = 0.152 x
3 = 0.456 m^{3}
Volume
of aggregate = 0.152 x 6 =0.912 m^{3}
Cement
volume for one bag = 0.0347 m^{3}
Cement in bag = 0.152 / 0.0347= 4.38 bag = 219 kgs
Estimation of Labour and Tools for Plain Cement Concrete:
For
1m^{3} of Plain Cement Concrete (PCC) Ratio 1:3:6 , unskilled
labour is required for 4 mandays for mixing, for carrying of cement, sand,
aggregate and water. Skilled labour is required for 1manday for placing,
checking, of concrete on required line level for 1cum.
Rate Analysis of Plain Cement Concrete (PCC) 1:3:6 :
Rate analysis of Plain Cement Concrete
requires the rate of cement, sand and aggregate multiplied with their
respective quantity. Cost of labour and tools and tackles for the PCC is also calculated. Cost of cement, sand,
aggregate, labour and tools depend on
local availability and local rates.
When,
quantity of cement, sand, aggregate, labour and tools are multiplied by its
rates, and a contractors profit of 1020% is assumed, the total sum of the
amount is taken as the cost of 1m^{3} of PCC, which is shown below
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PCC work


#

Plain cement concrete work 1:3:6
(M10)


Supplying, mixing & pouring
plain cement concrete in 1:3:6 cement sand aggregate (Machine crushed)
of approved size & quality as specified thickness in the drawing,
compactioning, curing etc.all complete .


Unit : Per Cum.


Source

Type

Quantity

Unit

Rate

Amount
(Rs.)

Remarks

Labour

Skilled

1.00

md

750.00

750.00


Unskilled

4.00

md

550.00

2200.00


Material

Cement

219.00

Kgs

16.50

3613.50


Aggregate (Ma. Crush)

0.89

Cum.

2000.00

1780.00


Sand

0.47

Cum.

1300.00

611.00


SubTotal

8954.50


Add, contractor's overhead

15%
of subtotal

1343.18


Total
rate

10297.68


Sample
of Rate Analysis

Same Process for Plain
Cement Concrete PCC ratio M7.5 (1:4:8), M10 (1:3:6), M15 (1:2:4) etc.
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