Estimate the quantities of the following items

365views

written 4.7 years ago by

enter image description here

1) Earthwork in an excavation in the foundation. 2) Lime concrete in foundation 3) First class brickwork in cement mortar (1:4) in foundation and plinth. 4) First class brickwork in cement mortar (1:6) in superstructure. Neglect step.

(A) By centre line method:

(a) Length of centre line for mainwalls = 2{5.0+2802)+(4+2808) = 19.20m (b) Length of centre line for verandah walls, sides = 2(1.5+.803+.208)=3.50m

Number of joints = 2nos

Front = 3+2*.208=3.20m

Total = 6.70m

Note that a join occurs at a place where three walls join.

Description	No	L m	B m	H m	Quantity	Total	Explanatory notes
1. Earthwork in excavation	1 1	19.20 5.80	.90 .46	1.00 .70	17.28 1.87	19.15 cu m	Length of verandah is reduced by half trench width 5.80=6.70-2*.
2.Lime concrete in foundation	1 1	19.20 6.10	.90 .46	.30 .20	5.18 .56	5.74 cu m	Lime concrete joins with 60cm brick layer of main wall 6.10 = 6.70-2*.803
3. First class brickwork in foundation and plinth (1:4) a) Main walls 60cm layer 50cm layer 40cm layer b)Verandah wall, portion joins with 60cm layer of main wall 50cm layer of main wall 40cm layer of main wall	1 1 1 1 1 1	19.20 19.20 19.206.10 6.20 6.30	.60 .50 .40 .30 .30 .30	.30 .20 .80 .10 .20 .80	3.46 1.92 6.14 11.52 .18 .37 1.51	13.58cu m	6.10=6.70-2.602 6.20=6.70-2.802 6.30=6.70-2*.402
First class brickwork in supersructure walls a) main walls b)verandah walls	1 1	19.20 6.40	.30 .20	3.60 2.80	20.74 3.58	24.32	6.40=6.70-2*
Deducation for door opening, D Window openings,W Verandah openings, sides Verandah openings, front Lintel at main wal Lintel at verandah	1 5 2 1 1 1	1.10 1.00 1.50 3.00 19.20 6.70	.30 .30 .20 .20 .30 .20	2.10 1.50 2.40 2.40 .15 .15	.69 (-ve) 2.25 1.44 1.44 .86 .18	" " " " " 17.46 cu m	Verandah lintel with 15cm bearing at the ends in main wall 6.70=6.4+2*.15 6.4 as that for 20cm wall in 4(b)

ADD COMMENT EDIT