This is the most important and crucial stage where building plans and designs are finalized and care is taken that the phase is a well-planned construction schedule. Proper construction practices are needed to adhere to proper safety measures.
Concrete mix | Water & Cement Ratio |
Water (Litre) per bag of cement | Cement (Bags) | Sand (cubic meter) | Aggregates (Cubic meter) | Steel Rebars (kg) |
M25 (1:1:2) |
0.35 | 17.5 | 11.2 | 0.40 | 0.80 | 80-120 |
M20 (1:1.5:3) | 0.42 | 21.0 | 8.0 | 0.42 | 0.83 | 75-115 |
M15 (1:2:4) | 0.55 | 27.5 | 6.2 | 0.43 | 0.87 | 70-110 |
Reasons for leakages/seepages |
Remedies |
Accumulation of water on the roof, etc. |
Provide drainage, Maintain slope during concreting |
Poor quality of construction materials |
Procure quality materials as per the guidebook |
Poor compaction |
Use vibrator for compaction |
Capillary in brickwork |
Use damp proof course(DPC) at plinth level |
Leakage from water retaining structure like water tank etc. |
Use waterproofing materials for water retaining structure. Ask expert opinion on
waterproofing treatment. |
Items |
% of Total Cost |
Design & Engineers fee |
3-5% |
Boundary Wall & Main Door |
1-3% |
Layout & Excavation | 2-4% |
Painting | 6-8% |
Flooring | 5-7% |
Electrical | 4-6% |
Plumbing & Sanitation |
4-6% |
Bore Well | 2-4% |
Shuttering & Formwork | 2-4% |
Doors & Windows | 5-7% |
Steel Rods | 10-12% |
Stone & Aggregates | 4-6% |
Bricks | 8-10% |
Sand | 3-5% |
Cement | 10-12% |
Electricity | 2% |
Water | 1% |
Labour contractor for Concrete | 8-10% |
Miscellaneous |
3-5% |
Total | 100% |