PROVISION OF WEATHER PROOF PAINT TO CERTAIN BUILDINGS AT NSTL VIZAG PHASE II

Amount

Complete removal of existing treatment on external surfaces of walls, applying a coat of exterior primer, 2mm thick putty including sand papering the puttied surfaces to form an even and smooth surface and applying two or more coats of premium acrylic emulsion paint with alkali & fungal resistance, dist resistance complete all as specified and directed.

Taking down cement plaster on brick work or stone walls etc., including raking out joints, hacking for key, scrubbing down with water etc., complete all as specified and directed.

Rendering 15mm thick in CM (1:4) in patches n.exc. 3 Sqm each patch on concrete / brick masonry surfaces, including mixing water proofing compound, finished even and smooth without using extra cement complete all as specified and directed. Note: - Supply only water proofing compound shall be measured and paid separately under relevant item.

Preparing new plastered surfaces of walls, applying a coat of exterior primer, 2mm thick putty including sand papering the puttied surfaces to form an even and smooth surface and applying two or more coats of premium acrylic emulsion paint with alkali & fungal resistance, dist resistance complete all as specified and directed.

Demolition of existing RCC chajjas of approximate size 1.50m (L) x 0.60m (W), scrapping the existing reinforcement, renewal of rusted reinforcement bars as required and providing RCC (1:2:4), type B1 (using 20mm graded stone aggregate) as in chajja including use & removal of form work to soffit and edges, plastering the soffits of chajja with 5mm thick in CM 1:3 and sides & top with 15mm thick in CM (1:4) complete including applying finishes to match with the existing finishes complete all as specified and directed. Note: - Supply only steel reinforcement bars shall be measured and paid separately.

Supply only, high strength deformed TMT steel bars of any dia complete all as specified and directed.

Applying anti corrosive primer @ 0.25 Ltrs / Sqm for exposed old and new reinforcement bars of any dia to the full circumference and length of bars to form an unbroken 40 micron thick film (DFT) complete all as per manufacturer's instructions and as directed.. Make: 'Nitozinc Primer' of make: M/s Fosroc Chemicals India (P) Ltd or techno commercially equivalent in M/s Pidilite Industries Ltd/M/s Sika India Pvt Ltd / M/s Structural Water Proofing Co Pvt Ltd / M/s BASF India Ltd.

Supply only, integral water proofing compound conforming to IS: 2645-1975 complete all as specified and directed.

Filling the existing cracks on plastered surfaces of walls by using Dr. Fixit Crack-X Shrinkfree compound including preparation of surfaces before application by opening the cracks and cleaning off the dust, dirt etc, for ease of application of paste all as per manufacturer's instructions and making good surfaces complete all as specified and directed.

Chipping of unsound / weak concrete material in patches n.exc 10 Sqm for 15mm average thickness from slabs, beams, columns etc with manual Chisel and / or by standard power driven percussion type or of approved make including tapering of all edges, making square shoulders of cavities including cleaning the exposed concrete surface and reinforcement with wire brushes etc, complete with necessary scaffolding / staging and disposal of debris for all lead and lifts complete all as per direction of Engineer-in-Charge.

Cleaning of reinforcement in pathes n.exc 15RM from rust from the reinforcing bars of dia upto 12mm to give it a total rust free steel surface by using alkaline chemical rust remover of approved make with paint brush and removing loose particles after 24 hours of its application with wire brush and thoroughly washing with water and allowing it to dry, complete all as per direction of Engineer-in-Charge.

Mixing and applying SBR polymer modified cement mortar in proportion of 1:4 (1 cement: 4 graded coarse sand with polymer minimum 2% by wt. of cement used) 15mm average thickness in three layers as per specifications and directions of Engineer-in-Charge. Note: Payment under this item shall be made only after proper wet curing has been done and surface has been satisfactorily evaluated by sounding / tapping with a blunt metal instrument.

Cutting down the plants / trees of girth n.exc. 15cm from roof tops / sides of external walls of building, chajja, wall junctions & at junctions of rain water / waste water pipes including taking out the roots entered into wall / slab surfaces, making good surfaces with PCC (1:2:4) type B0 (using 12.5mm graded stone aggregate) or cement mortar (1:2) including repairing the GI / CI / PVC pipe joints which were affected due to cutting / taking out process after applying suitable herbicide including making good the distributed surfaces to match the adjoining surfaces complete with necessary scaffolding / staging / Jhula etc., with all necessary safety precautions upto 4 storey height complete all as specified and directed.

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