## Rate Analysis of Brick Masonry

• Rate analysis of brick masonry used of reference book  IS Code 1200 part 3(IS Code 1200 part 3 used for measurement), IS Code 2212, and CPWD Part 1.
• All calculations of brick masonry for rate analysis. This calculation calculates of brick and mortar (mortar = Cement + Sand past this call mortar) for materials.
• Mortar is used a sum different proportions 1:2, 1:4, 1:6, 1:8, etc.(1 cement: 2 Sand). This quantity estimation of bricks is required for the rate analysis.

## Important Point in Rate Analysis of Brick Masonry

### Measurement of Brick Masonry

• In booking dimensions, the order will be consistent and generally at the sequence of length, breadth or width and height or depth or thickness.
• Brickwork shall be measured in cubic meters unless otherwise specified.
• Any extra work over the specified dimensions will be ignored.
• Dimensions will be measured correct to the nearest 0.01 m, i.e., 1 cm. Areas will be calculated to the nearest 0.01 sq meters, and the cubic contents shall be worked out to the nearest 0.01 cubic meters
• Brickwork will be measured separately in the following stages:
• From foundation to floor one level (Plinth level)
• Plinth (floor one) level to floor two-level
• Between both specified floor levels above floor two-level

### Dednctioan of Brick Masonry

• Where a minimum area is defined for deduction of an opening, void, or both, such area shall refer only to opening or void within the space measured.
• Where a minimum area is defined for deduction of an opening, void, or both, such areas shall refer only to opening or void within the space measured.
• Ends of dissimilar materials (that is, joists, lintels, beams, rafters, posts, girders, purlins, corbels, trusses, steps, etc.); up to 0.1 m2 in section;
• Opening up to 0.1 m2 in area
• Wallplates, bed plates and bearing of slabs, chajjas and the like, where thickness does not exceed 10 cm and the bearing does not extend over the full thickness of the wall;
• Cement concrete blocks as for holdfasts and holding down bolts;
• Iron fixtures, such as wall ties, pipes up to 300 mm diameter and holdfasts for doors and windows; and
• Chases of section not exceeding 50 c.m. in girth.
• I am bearing a portion of the drip course, bearing of molding and cornice.

Also, read: What Is Leveling | Leveling Methods

### Dimensions of Brick Masonry

• The brick can be modular or non-modular.
• Sizes for two types of bricks/tiles shall be as per the below table.
• While the use of modular bricks/tiles is recommended, non-modular (FPS) bricks/tiles may also be used where so specified.
• Non-modular bricks/tiles of sizes other than these sizes mentioned below table may also be used where specified.

Type of Bricks/ TilesNominal Size mmActual Size mm
Modular Bricks200 x 100 x 100 mm 190 x 90 x 90 mm
Modular tile bricks200 x 100 x 40 mm190 x 90 x 40 mm
Non-modular tile bricks229 x 114 x 44 mm225 x 111 x 44 mm
Non-modular bricks229 x 114 x 70 mm225 x 111 x 70 mm

Dimensions of Brick Masonry

Also, read: Trapezoidal Footing Formula with Calculation

## Rate Analysis of Brick Masonry

Example for Rate Analysis of Brick Masonry

 Sr No. Description Qty Unit Rate Cost Brickwork with best available local bricks in foundation and plinth in cement mortar 1:3 (1cement : 3 fine sand) Cost for 10.00 Cu.m. A Labour Charges 1 Mate 4.00 Day 350.00 1400.00 2 Mason 4.00 Day 700.00 2800.00 3 Helper 8.00 Day 500.00 4000.00 4 Coolie 2.00 Day 350.00 700.00 B Material Bricks (Size of brick = 190 mm x 90 mm x 90 mm) 5000.00 Day 5.00 25000.00 Westage of brick 5% Extra 5% 1250.00 Cement 22.00 Bag 320.00 7040.00 Westage of cement 2% Extra 2% 140.80 Sand 2.30 Cu.m. 1362 3132.60 Westage of sand 2% Extra 7% 219.28 C Scaffolding 1% Extra 1% 365.63 D Transportation Cost 1% 1% 365.63 E Other Charges 2 % Extra 2% 731.27 F Add for Water Charge @ 1% on Items Marked 1% 365.63 G Add for Contractor’s Profit @15% on Items Marked 15% 5484.51 Cost of 10.00 Cu.m. 52995.36 Cost of Cu.m. 5299.54 Round off Cu.m. 5300.00

### Calculation of Brick for Rate Analysis of Brick Masonry

• Size of actual brick dimensions of 190 mm x 90 mm x 90 mm
• The volume of 1 brick with mortar = 200 x 100 x 100 ( 10 mm mortar thickness on all sides)
• = 0.2 m  x 0.1 m x 0.1 m
• The volume of a brick with mortar = 0.002  Cum (m3)
• Therefore, Number of bricks required for 1 Cum (m3) = 1/0.002 = 500 Nos.
• Requirement of brick 10 cu.m. = 500 nos (1 cu.m = 500 nos. of brick) x 10 cu.m
• So, 10 cu.m. brick work requirement of brick = 5000 nos. of brick requirement

Also, read: What Is EDM in Surveying | Type | Errors

• #### Calculation of Cement

• The volume of bricks without mortar
• Volume of 1 brick without mortar = 190 mm x  90 mm x 90 mm
• = 0.19 m x 0.09 m x 0.09 m
• The volume of 1 brick without mortar =  0.001539 Cu.m. (m3)
• The volume of 500 bricks without mortar = 500 nos.  X 0.001539 Cu.m. (m3)
• The volume of bricks without mortar for 1 cum = 0.7695 Cu.m.  (m3)
• So, The required amount of cement mortar = 1 Cum – Volume of bricks without mortar
• Cement Mortar = 1 Cu.m. (m3) – 0.7695 Cu.m. (m3)
• Required amount of cement mortar Required amount of cement mortar = 0.2305 Cu.m.(m3) (Wet Condition) = 0.2305 Cu.m. (m3)
• Convert Dry volume of a mortar = 0.2305 Cu.m. x 1.33 = 0.306565 Cu.m.
• Cement mortar ratio is 1:3 (1 cement : 3 fine sand)
• The required amount of Cement quantity at brickwork =   0.306565 Cu.m. x (1/(1+3))
• = 0.306 x 0.25
• = 0.07664125 cu.m. cement requirement
• Cement in k.g. = volume x density cement
• Cement in k.g. = 0.07664125 cu.m. x 1440 (1440 kg/m Density of cement for 50 k.g)
• = 0.07664125 x 1440 = 110. 363 kg of cement of bag requied ment of cement in k.g.
• = 110.363 / 50 (one cemnent bag weight 50 k.g. only) = 2.20 bag
• So, 10 cu.m. brick work requirement of cement = 2.20 bag x 10 cu.m. = 22 bag
• #### Calculation of Sand

• Required amount of Sand = 0.306565 x 3/(1+3)
• =0.2299 Cu.m. requierd of sand for 1 Cu.m.
• So,
• So, 10 cu.m. brickwork requirement of sand = 0.2299 Cu.m x 10 cu.m. = 2.299 cu.m.

### 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, 5%, Cement 2%, and Sand 7% wastage as per IS code allowance

### Extra Work Calculation in Rate Analysis of Brick Masonry

• Extra Changes in rate analysis as per below
• Scaffolding 1% Extra
• Transportation Cost 1%
• 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

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