Concept:

Dry volume of cement mortar = 1.33 × wet volume of cement mortar

Bulk density of cement = 1440 kg/m3 

Weight of 1 bag of cement = 50 kg

Calculation:

Given, L = 5 m, H = 3.5 m, T = 0.3 m, Plaster thickness = 0.012 m

Plaster required for both side of wall = 2 × 5 × 3.5 × 0.012 = 0.42 m3 

Dry volume of cement mortar = 1.33 × 0.42 = 0.5586 m3 

Volume of cement required = 0.5586/4 = 0.13965 m3 

Cement bags required = 0.13965/50 × 1440 = 4 bags

Answer:

The carpet area of residential building may be 50 % to 65 % of plinth area of building with a target of 65 %.

Concept:

Carpet area of building is useful area or liveable area or lettable area. This is total floor area minus circulation area, verandahs, corridors, passages, staircase, lifts, entrance hall, etc. and minus or non-usable areas as sanitary accommodations (bath and W.Cs.), air conditioning room etc.

For office building carpet area is useable area and for residential building carpet area is liveable area and should exclude kitchen, pantry, stores, and similar or room which are not used for living purposes.

The carpet area of a building for any storey shall be floor area excluding following:

(a) Sanitary accommodation, (b) verandahs, (c) corridors and passages, (d) kitchen and pantries, (e) stores in domestic buildings, (f) entrance hall and porches, (g) stair cases and mumties, (h) shafts for lifts, (i) barsaties, (j) garages, (k) canteens, (l) air conditioning ducts and air conditioning plant room.

The carpet area of an office building may be 60 % to 75 % of plinth area of building with a target of 75 %.

The planners should aim to achieve a target to 75 % of plinth area. The carpet area of residential building may be 50 % to 65 % of plinth area of building with a target of 65 %.

cost is determined by available resources rar than by objective assessment. if software has to be delivered in 12 months and 5 people are available, effort required is estimated to be 60 person-months.