How to do Rate analysis for Cement Mortar? - Estimation and Costing -lceted LCETED INSTITUTE FOR CIVIL ENGINEERS

# How to do Rate analysis for Cement Mortar?

The volume of Cement mortar = 1m³

Cement mortar Mix Ratio = 1:5

Dry volume of Cement mortar = Wet volume x 1.33

Dry volume of Cement mortar/ Ratio of Cement-mortar = 1.0 m³ x 1.33 = 1.33 m³

Quantity of Cement = ((Dry volume of Cement mortar x Cement ratio) / (total sum of the ratio))

Quantity of cement = (1.33 x 1)/(1+5)= 0.22166m³

Density of Cement = 1440kg/m³

Weight of Cement = 1440 x 0.22166= 319.1904kg

1 bag of cement contains 50 kg of cement

No of cement bags = 319.1904 Kg/50 = 6.38 – 7 nos

Therefore,

Cement : Sand - 1:5

Quantity of Sand = Quantity of Cement x 5

Quantity of Sand = 0.22166m³ x 5= 1.1083 m³

1m³=35.3147 Cubic Feet (CFT)

Quantity of sand = 1.1083 x 35.3147 = 39.1392 CFT

Density of sand = 1602kg/m³

Weight of the sand = 1.1083m³x1602kg/m³= 1775.496 kg-1.8 ton

Cost Summary:

Cost of material used cement mortar mixing = 4628.70/-

Cost of labour used cement mortar mixing = 809.50/-

Total cost of labour and material cost = 5438.20/-

1.   Water charge @ 1% = (1/100) x 5438.20= 54.382/-

2.   Contractor’s profit @20 % = (20/100)x5438.20= 1087.64

Total cost = 5438.20 + 54.382 + 1087.64 = 6580.222/-