rate analysis- brickwork

7/22/2019 Rate Analysis- Brickwork

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RATE ANALYSIS - BRICKWORK

Akhila Udayashankar A-1472

Mani Mathur A-1502

Suranjana Datta A-1536


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1.CALCULATION OF MATERIALS PER 10 cu m. VOLUME OF BRICK

METRIC BRICKS No. of metric brick having size with mortar 10 cm x 10 cm x 20 cm

= 10 = 5000 nos.

0.1 x 0.1 x 0.2

The size of one metric brick without mortar is 9 cm x 9 cm x 19 cm

Therefore mortar required per 10 c.m. = 10-(5000 x .09 x .09 x .19) = 2.3 cu m.

Due to frog filling, brick bonding courses and wastage, etc. increase this quantity by 15%therefore, volume of wet mortar = 2.3 + 2 .3 x .15 = 2.64 cu m

when dry, increase this quantity by 1/3 = 2.64 + 2.64 x 1/3 = 3.5 cu m

In case of lime mortar, the above quantity., 3.5 cu m. reaches upto 4.0 cu m. .Such increase

may be justifies considering the void in surkhi is more, joints are generally thicker and

additionally, less care is observer towards wastage.

With second class bricks, the quantity of cement mortar of 4.0 cu m. and lime mortar of 4.2

cu m. are required according to the shape and size of second class bricks.


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TRADITIONAL BRICKS

No. of traditional bricks having size with mortar 25.4 cm x 12.7 cm x 7.6 cm =

10 = 4079 nos. , say, 4100 nos.

0.254 x 0.127 x 0.076

With this traditional size of bricks, joints are less, and therefore lesser amount of mortarshould be required. But due to larger size of frog and wider area of a brick such variation

may be minimized.

TRADITIONAL BRICKS

No. of traditional bricks having size with mortar 22.9 cm x 11.4 cm x 7.6 cm =

10 = 5041 nos. , say, 5000 nos. (due to thi

0.229 x 0.114 x 0.076

The no. of bricks being same to that of metic brick and the quantity of mortar is also

same.

2. FIRST CLASS BRICKWORK IN LIME AND SURKHI MORTAR (1:3 FOUNDATION AND

PLINTH)

Consider first 10 c.m.

Calculation of materials: Lime = 4/4 = 1.0 c.m.

Surkhi = 1.0 x 3 = 3.0 c.m.


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PARTICULARS QUANTITY RATE AMOUNT

Rs. P.

(a) Materials - Brick (kiln) 5000 nos. 8p per no. 4000

metric 20 x 10 x 10 cm

traditional 25.4 x 12.7 x 7.6 cm 4100 nos.

22.9 x 11.4 x 7.6 cm 5000 nos.

Surkhi 3.00 cu m 146.00 per cu m 438

Lime 1.00 cu m 398.00 per cu m 398

(b) Labour- Head mason 1/2 no. 38.00 per day 19

Mason 8 nos. 35 each per day 280

Mazdoor (2 nos. as bhisti) 10 nos. 20.00 per day 200

Mazdoor (female) 6 nos. 20.00 per day 120

Contingencies, T and P, risk etc. L.S 1/2 %(a + b) 27.27 27.27

Total = 5482.27

(c) Water charges 1% of the total 54.82

Total = 5537.09

(d) Profit and overhead 10% 553.7

Rate per cu m. = Rs. 609.107 Grand total = 6090.79


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3. FIRST CLASS BRICKWORK IN CEMENT MORTAR (1:4) IN SUPER STRUCTURE,

GROUND FLOOR

Consider first 10 c.m. Calculation of materials: Cement = 3.5/5 = 0.7 cu m

Sand =0.7 x 4 = 2.8 cu m


Rs. P.

(a) Materials -

Brick (kiln) - 20cm x 10cm x 10cm 5000 8p per no. 4000

Sand ( medium) 2.8 cu m 130 per cu m 364

Cement 0.70 cu m = 21 bags 2.1 bags 73 per bag 1533

Scaffolding L.S 20 20

(b) Labour-

Head mason 1/2 no. 38.00 each per day 19



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Contingencies, T and P, risk etc. L.S 1/2 %(a + b) 32.78 32.78

Total = 6588.78


Total = 6554.66


Rate per cu m. = Rs.721.01 Grand total = 7210.12

BRICKWORK FOR ADDITIONAL STOREY:

Labour cost of 1 mason, 3 mazdoors, and a lump sum amount of Rs. 20 for scaffolding per 10

cu m. volume of work are to be added over the ground floor as illustrated in the next slide.

According to All India Standard Schedule of Rates an extra overrate of 1% shall be added per

floor of brickwork, taking each floor to be of average 3m height


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4. FIRST CLASS BRICKWORK IN CEMENT MORTAR (1:6) IN SUPER STRUCTURE,

FIRST FLOOR


Calculation of materials: Cement = 3.5/7 = 0.5 cu mSand =0.5 x 6 = 3.0 cu m


Rs. P.

(a) Materials -


(For 25.4 cm x 12.7 cm x 7.6 cm) 41000 nos.

(For 22.9 cm x 11.4 cm x 7.6 cm) 5000 nos.

Sand ( medium) 3 cu m 130 per cu m 390

Cement 0.50 cu m = 15 bags 15 bags 73 per bag 1095


(b) Labour-

Head mason 1/2 no.

38.00 each per

day 19


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Mason 9 nos.

35 each per

day 315



Contingencies, T and P, risk etc.

L.S 1/2 %(a +

b) 31.24 31.24

Total = 6280.24


Total = 6343.04(d) Profit and overhead 10% 634.3


5.FIRST CLASS BRICKWORK IN PLAIN ARCHES IN SUPERSTRUCTURE SPAN NOT

EXCEEDING 6M IN CEMENT MORTAR 1:4 INCLUDING CENTERING AND

SHUTTERING COMPLETE


Rs. P.

(a) Materials -

First class brick (metric) 5000 8p per no. 4000


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Sand ( medium) 2.80 cu m 130 per cu m 364

Cement 0.70cu m = 21 bags 21 bags 73 per bag 1533

Centring and shuttering -

Considering a semi circular arch 3.6

m

clear span 3.0 m long and .40 m thk.

area of centring = 3.142 x 1.8 x 3.0

16.97 sq m

Brickwork in arch = 3.142 x 2 x .4 x

3.0

= 7.54 cu m

area/ 10 cu m =16.97/ 7.54x10 =22.5

sqm 22.5 sq m 30.00 per sq m 675



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(b) Labour-

Head mason 1 no. 38.00 each per day 38


Mazdoor (2 nos. as bhisti) 22 nos. 20.00 per day 440Contingencies, T and P, risk etc. L.S 1/2 %(a + b) 37.12 37.12

Total = 7462.12


Total = 7536.74



Extra rate for brickwork (1:4) in plain arches = Rs.527.35 Rs.452.76 = Rs.74.59 cu m

Extra labour rate for brickwork only = Rs.464.00 Rs.358 = Rs.106 per 10 cu m

According to IS-1200, the brickwork rate for arches of span not exceeding 6m, hire and

labour charges for centering and shuttering shall be included in the item and for spans

exceeding 6m centering and shuttering shall be measured separately.


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6.HALF BRICK i.e10 CM BRICK WALL IN CEMENT MORTAR (1:3)WITH PLAIN ARCHES

WITH H.B NETTING IN EVERY THIRD LAYER(GROUND FLOOR)


Calculation of materials: Bricks(metric) = 100 = 5000 nos..10 x .20

Volume of mortar35% to the volume of work = 100 x .10 x .35 = 3.5 cu m. Due to half

brickwork, volume of mortar becomes 10% less than 3.5 cu m. = 3.5 0.35 = 3.15 cu m.

Therefore, cement = 3.15 / 4 = 0.79 cu m

sand = .79 x 3 = 2.37 cu m.

Wire netting for every third layer i.e, 30 cm intervals (considering a wall 10m length x

10m height) = 10 x 10 / .30 = 334 rm, with 10 cm wide area of netting =

334 x .10 = 33.4 sq m.


Rs. P.

(a) Materials -


(For 25.4 cm x 12.7 cm x 7.6 cm) 41000 nos.

(For 22.9 cm x 11.4 cm x 7.6 cm) 5000 nos.

Sand ( medium) 2.37 cu m 130 per cu m 308.1


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Cement (0.79 cu m = 23 bags) 23 bags 73 per bag 1679

Wire netting 33.4 sq m 30 per sq m 1002


(b) Labour-

Head mason 1/2 no.

38.00 each per

day 19




L.S 1/2 %(a +

b) 39.71 39.71

Total = 7982.81


Total = 8062.64



7. HALF BRICKWORK FOR EACH HIGHER STOREY:

Labour costs of 3 mazdoors (beldars) is to be added to lift the materials over and above

the above costs


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8.SECOND CLASS BRICKWORK IN MUD MORTAR IN SUPER STRUCTURE,

GROUND FLOOR


Rs. P.

(a) Materials -

Brick second class ( metric) 5000 8p per no. 4000

Clay ( selected loamy soil) 4.00 cu m 12.50 per cu m 50


(b) Labour- Head mason 1/2 no.

38.00 each per

day 19




L.S 1/2 %(a +

b) 28.02 28.02

Total = 5632.52


Total = 5688.84


Rate per cu m. = Rs. 625.77 Grand total = 6257.72

rate analysis- brickwork

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