What is Rate Analysis?
The basis of arriving at a correct and reasonable rate per unit. Work or Supply for a particular item following its specification and detail survey of materials, labour, equipment, etc. as required for the unit work and their prevailing rates may be called as an analysis of rate.
How to Use Rate Analysis of Brick Work Calculator
This calculator is used for rate analysis of Brick work. Here we will see Step by step how this calculator works.
Step – 1. Select Area
First Enter your Rate analysis area in Cu.m. as per shown in the below picture.
Step – 2. Mortar Ratio
Enter your Brick work Cement and Sand ratio as per shown in the below picture. (Cement and Sand ratio in different cells)
Step – 3. Brick Size
Enter your Brick Size like length, breadth and height in mm as per shown in the below picture. (Length, Breadth and Height in different cells)
Step – 4. Fill Labour Charges
Enter your labour charges rate like Mate rate, Mason rate, Helper rate and coolie rate as per shown in the below picture. ( Mate, Mason, Helper, and Coolie rate in different cells)
Step – 5. Fill Material Rate as Per Actual
Step – 6. Additional Cost in Rate Analysis
Check your further details like wastage percentage, other extra charges, water charges and contractor profit percentage. If any are changed as per your requirement than a change in cells that are shown in below cells.
Step – 7. Rate of Brick Work as Per the Required Area
After completing the above 6 steps final answer given last cells that’s are Cost of 10 Cu.m. that are shown in the below picture.
Step – 8. Print Button for Print Out
if you required to print your plastering work calculation you can use print button option.
Rate Analysis of Brick Work Calculator
Material Calcution of Brick Masonry
Size of actual brick dimensions of 190 mm * 90 mm * 90 mm
The volume of 1 brick with mortar = 198 * 198 * 98 ( 8 mm mortar thickness on all sides)
= 0.198 m * 0.098 m * 0.098 m
The volume of a brick with mortar = 0.0019 Cum (m3)
Therefore, Number of bricks required for 1 Cum (m3) = 1/0.002 = 526 Nos.
Requirement of brick 10 cu.m. = 526 nos (1 cu.m = 526 nos. of brick) * 10 cu.m
So, 10 cu.m. brick work requirement of brick = 5260 nos. of brick requirement
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Cement and Sand Calculation
Calculation of Cement
The volume of bricks without mortar
Volume of 1 brick without mortar = 190 mm * 90 mm * 90 mm
= 0.19 m * 0.09 m * 0.09 m
The volume of 1 brick without mortar = 0.001539 Cu.m. (m3)
The volume of 500 bricks without mortar = 526 nos. * 0.001539 Cu.m. (m3)
The volume of bricks without mortar for 1 cum = 0.8095 Cu.m. (m3)
So, The required amount of cement mortar = 1 Cum – Volume of bricks without mortar
- Cement Mortar = 1 Cu.m. (m3) – 0.8095 Cu.m. (m3)
Required amount of cement mortar Required amount of cement mortar = 0.1905 Cu.m.(m3) (Wet Condition) = 0.1905 Cu.m. (m3)
Convert Dry volume of a mortar = 0.1905 Cu.m. * 1.33 = 0.2534 Cu.m.
Cement mortar ratio is 1:3 (1 cement : 3 fine sand)
The required amount of Cement quantity at brickwork = 0.2534 Cu.m. * (1/(1+3))
- = 0.2534 * 0.25
- = 0.06334 cu.m. cement requirement
- Cement in k.g. = volume * density cement
- Cement in k.g. = 0.06334 cu.m. * 1440 (1440 kg/m Density of cement for 50 k.g)
- = 0.06334 * 1440 = 91. 2114 kg of cement of bag requied ment of cement in k.g.
- = 91.2114 / 50 (one cemnent bag weight 50 k.g. only) = 1.825 bag
- So, 10 cu.m. brick work requirement of cement =1.825 bag * 10 cu.m. = 18.26 bag
Calculation of Sand
Required amount of Sand = 0.2534 Cu.m. * (3/(1+3))
- =0.1900 Cu.m. requierd of sand for 1 Cu.m.
- So, 10 cu.m. brickwork requirement of sand = 0.1900 Cu.m * 10 cu.m. = 1.90 cu.m.
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Calculation of Brick Masonry for Labour
As per calculation of rate analysis in labor consumption per Cu.m. requirement as per our experience or CPWD book, this book public by Central Public Works Department, Government of India for easy calculation of the rate analysis, etc.
As CPWD Mate per cu.m. 0.4 of day Mate & Mason, Halper per cu.m. 0.8 of day, Coolie for water curing per cu.m. 0.4 of day
Waste in Brick Masonry
All measurements of cuttings shall unless otherwise stated, be deemed to include consequent waste.
Like brick masonry, Cement, and Sand wastage 2% as per IS code allowance
Extra Work Calculation in Rate Analysis of Brick Masonry
Extra Changes in rate analysis as per below
Other Charges 2 % Extra (Electrical, and site extra expense)
Add for Water Charge @ 1% on Items Marked
Add for Contractor’s Profit @15% on Items Marked