Agriculture Reference
In-Depth Information
Table 7.1
(continued)
Sr. No.
Item specifications
Unit of work
Required man-days
Unskilled
Semi-skilled
Skilled
(b) Where pipes, etc. are of diameter exceeding 30 cm, and excavation is to be carried out in
(i) Soft soils like loam, clay loam
100 m
40
6
(ii) Hard dense soil like clay/gravel
100 m
50
6
(iii) Hard soil mixed with boulders
100 m
60
6
(iv) Decomposed rock
100 m
90
6
(v) Ordinary rock with fissures
100 m
110
6
(vi) Hard rock requiring blasting
100 m
125
8
8
7-3
Filling in plinth with available sand, excavated earth, or river shingle, under floors, including
watering, ramming, consolidating, and dressing
100 m
3
30
7-4
Surface dressing of the ground including removal of vegetation and inequalities not
exceeding 15 cm:
(a) Soft or loose soils
100m
2
2
(b) Hard or dense soils
100m
2
3
7-5
Mortars
Preparation of mortar of sand and lime/cement, including handling in all manner, such as
grinding
in a mill in case of lime, and thorough mixing with hand in case of cement:
(a) Lime-sand mortar (1:2 to 1:3)
10 m
3
13
1
3
10 m
3
(b) Cement-sand mortar (1:2 to 1:8)
7
1
10 m
3
(c) Composite cement-lime-sand mortar
13
1
3
10 m
3
(d) Cement marble-powder mortar
6
1
10 m
3
(e) Mud mortar
5
7-6
Concrete work
Laying concrete in foundation and plinth, including ramming and watering, made of
(a) Lime concrete with 40 % lime mortar with 40 mm aggregates
10 m
3
20
1
10 m
3
(b) Cement concrete, with 20 mm aggregate, including compaction and curing
(1:1:2 to 1:2:4)
20
2
2
10 m
3
(c) Cement concrete with 40 mm aggregate, including compaction and curing
(1:1:2 to 1:2:4)
20
1
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