(Part I was published in the April Issue. Part II consists of Annexures I, II, III and Schedule I)
Annexure 1: Special conditions
- Foundation and Plinth:- Foundation and plinth shall be 1:2:3 cement concrete.
- Damp Proof Course and Termite-proof:- D.P.C. shall be 2.5 cm thick cement concrete 1:2:3, mixed with one kg of tape create/Dr Fixit per bag of cement or other standard water proofing materials as specified and painted with two coats of bitumen.
- Superstructure:- Superstructure shall be of first class with 1:6 cement mortar. Lintels over doors and windows shall be of R.C.C. ratio of 1:2:3
- Roof :- Roofs shall be of R.C.C slab with an insulation layer and lime concrete terracing above, supported over R.C.C beams as required. The height of the rooms shall not be less than 11’.
- Flooring:- All flooring for the school and hostel will be cement floor with skirting up to 6”.
- Finishing:- Inside and outside shall be of 12 mm cement plaster 1:5 and the ceiling 1:4.
- For Other materials:- Rain water pipes of PVC shall be provided. Building shall be provided with durable and stainless water fittings and quality electrical installation.
Annexure II: Details of the construction work: General Specifications for Construction
Civil and Brick Work:
Ultratech/ACC/JK Cement of 43 grade to be used for all wall work.
All external walls shall be of 10” thickness with intermittent RCC columns. They will have cement mortar in the ratio 1:6 (1 cement: 6 coarse sand). The joints shall be cleared of excess mortar from both sides. The brickwork shall not proceed to more than 3’ height in one session.
Basement and ground floor external walls will have plaster mixed with tape-create on the internal and external side.
Similarly, basement raft (tie beam) shall have a double layer of plaster with sandwitch layer of tape-create.
All 4½” thick brickwork shall be done with cement mortar in the ratio 1:4 (1 cement:4 coarse sand) ratio.
Flooring shall be 4” thick cement concrete in 1:4:8 over well compacted earth. It will be a cement floor.
A 3’ wide drainage plinth protection around the building with saucer drain, rain water pipes and fitting to be provided.
Fr Alex G SJ
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