REPAIR/REPLACEMENT/RENEWAL OF FALSE CEILING, ROOF SHEETS ETC AND ALLIED WKS AT CERTAIN MD ACCNS AT MIL STN KANCHRAPARA UNDER GE BARRACKPORE

Amount

Taking down cement plaster of any description on brick or stone or concrete surface of wall etc including raking out joints, hacking for key, scrubbing down with water etc complete all as specified and directed.

Demolition of brick work or stone/boulder masonry, built in cement mortar or cement lime mortar including all quoins, arches, pillar etc but excluding ashlars facing dressed stonework & precast concrete articles complete all as specified and directed.

Demolition of unreinforced cement concrete of any description and in any position not otherwise specifically provided for complete all as specified and directed.

Demolition and breaking up drain pipes of dia 50mm (PVC) set in cement mortar, fixed to wall, etc complete all as specified and directed.

Taking down all existing roof treatment and demolition of cement concrete padding/levelling course(any thickness as available at site) including wire brushing and cleaning loose dust etc from surfaces of RCC roof including flashing and junction of parapet complete all as specified and directed.

Dismantling wrought iron or mild steel work of any description complete all as specified and directed.

Dismantling boarding, any description, fixed in any position with nails complete all as specified and directed.

Dismantling of wall and ceiling boards (fibre, pulp, insulation etc) or insulation boards/slab of any description including cover fillets complete all as specified and directed.

Dismantling plain or corrugated steel sheeting, any gauge/thickness including Nainital or similar pattern roof coverings complete all as specified and directed.

Dismantling asbestos cement (corrugated, semi corrugated etc) sheets in roof coverings complete all as specified and directed.

Dismantling unframed timber scantling 40 Sqcm and over in section, in any position complete all as specified and directed.

Dismantling framed timber scantling 40 Sqcm and over in section, in any position complete all as specified and directed.

Dismantling unframed fillets, rails, posts, rafters, purlins etc under 40 Sqcm in section complete all as specified and directed.

Dismantling framed fillets, rails, posts, rafters, purlins etc under 40 Sqcm in section complete all as specified and directed.

M&L for cutting chases, in brick wall, pinning in and making good to facing where required and pointing in cement mortar (1:3), to ends or edges of landing, steps, cills, sunshades, shelves, lintels etc and cutting chases for concealed water tubing etc and making good the disturbed surface, cutting not exceeding 10cm girth complete all as specified and directed.

M&L for brick work with subclass 'B' bricks locally available best quality straight or curved on plan exceeding 6m mean radius, built in cement mortar (1:6) complete all as specified and directed.

S&F for MS rolled sections as in main and cross beams, hip and jack rafters; purlins where connected to common rafters and running rails and guides for sliding doors; fixed with angle cleats or other connecting plates including where required drilling, fittings, riveting or welding connecting with fish plate, gusset plates etc of Fe-410-W (Gde E-250) quality 'A' complete all as specified and directed.

S&F for rolled mild steel plates (plain or chequred) channels, square cut or notched (ordinary and counter sunk) forming holes with riveted, bolted or welded attachment of Fe 410-W (Gde E-250) quality A including painted one shop coat of zinc chrome primer paint including preparation of surface at Contractor's workshop complete all as specified and directed.

S&F of pre-painted galvalume aluminium zinc coating GI based corrugated steel sheet of 0.50mm thick of Red colour as approved by GE having tensile strength of 550 Mpa as in roof covering/cladding to wall, fixed with self tapping screws / 'L' or 'J' type or cranked hooks bolts complete all as specified and directed.

S&F of pre-painted galvalume aluminium zinc coating GI based plain steel sheet of 0.50mm thick of Red colour as approved by GE having tensile strength of 550 Mpa as in roof covering/cladding to wall, fixed with self tapping screws complete all as specified and directed.

S&F of hangers 6mm dia GI (not exceeding 1200mm in length apart) adjusting level fixed to roof slabs by means of ceiling cleats made out of GI flat 40 x 3 mm, 60mm long and expansion hold fasteners 12.5mm dia 40mm long complete all as specified and directed.

M&L for 4mm thick non asbestos fibre cement building boards (E-board) fixed or laid/inserted to timber/GI/Aluminium framework with screws complete all as specified and directed.

M&L for 25mm thick 2nd class boarding, fixed with with screws in any situation (except flooring and skirting), clean sawn with butt joints complete all as specified and directed.

S&F GI framework of reqd size for seamless ceiling comprising of GI perimeter channel 0.55mm thick with two unequal flanges of 20mm and 30mm and web of 27mm fixed to surrounding wall using nylon sleeves and screws at 450mm centre to centre/ intermediate channel 0.9mm thick having two unequal flanges of 15mm each and web of 45mm suspended from soffit at approx 900mm centre to ceentre with GI cleat and steel expansion fasteners with and including ceiling sction (not exceeding 1.2m length) of 0.55mm thickness having kurled web of 50mm and flange of 26mm each with lips of 10.5mm fixed to the intermediate channel with connecting clips across the intermediate channel at 457mm center to center complete all as specified and directed.

S&F interior decorative cavity/hollow PVC louver/flute ceiling panels/planks of interlocking types, thickness 10-12mm with colour textures/shade as approved including necessary trims here required fixed with hidden screws to GI framework complete all as specified and directed.

M&L for preparation of RCC roof surface or wall & floor of sunken slab by cleaning the entire roof with Pressure water jet to remove the unwanted dust, loose material or any other material which may impair adhesion of the material. Surface must be cleaned and dried properly so that any cracks on the substrate can be visible. Concrete substrate to be cleaned up to exposed sound concrete cover, remove dust, laitance etc, which may impair adhesion of the material. All surface cracks up to 1-2 mm wide should be filled with single component cold applied elastomeric waterproofing coating (Dr. Fixit RoofSeal Ultra or equivalent) using a brush and adding a coat on the slab on both sides of the crack, up to a distance of 100 mm around it. Cracks more than 1-2 mm should be widen by making V-groove and repaired with PMM (Polymer Modified Mortar) using Dr. Fixit Pidicrete URP or equivalent 10% by weight of cement. Note : 1. Finished surface shall be as per satisfaction of Engr-in-Charge. 2. All cracks shall be prepared and checked by Engr-in-Charge before and after treatment for the satisfaction and rates quoted shall be including the quantum of cracks in proposed surfaces which shall be checked on grnd by the contractor before quoting bid. 3. No addl amount shall be claimed further for repairing cracks (unless deep structural cracks, if obtained after preparation of surfaces, which shall be adjusted through Deviation Order as per dirns of AO. 4. Entire application shall be carried out by trained certified manufacturer applicator only.

Material and labour for 25mm thick PCC 1:2:4, type B0 (using 12.5mm size stone aggregate) as levelling course, padding on chajjas, etc incl angular moulding at junction upto 10cm height complete all as specified with WPC @200ml/50 Kg of cement or as per manufacturer's instruction, applied over prepared surfaces complete all as specified and directed. Note : (i) WPC shall be measured and paid separately as 'supply only'. (ii) PCC shall be laid to acheive true slope towards the drain/weep holes.

Supply only Nanotechnology based Elastomeric Hydrophobic Powder/admixture (EHP) powder for cement plaster and concrete complete all as specified and directed.

Material and labour for single component cold applied elastomeric waterproofing coating (Dr. Fixit RoofSeal Ultra or equivalent) on in-accessible/accessible roof or wall & floor of sunken slab based on synthetic resin emulsion, tough yet extremely flexible coating that can be efficiently applied by roller or squeegee having fwg important features : (i) High film build up provides excellent water resistance. (ii) Excellent flexibility and elongation properties - can easily accommodate all normal building movements. (iii) Can be applied to complex shapes to form a seamless and highly durable water proofing coating. (iv) Adheres firmly to most of building surfaces incl both horizontal and vertical surfaces of parapet, etcs. (v) Suitable consistency for easy application by brush, roller or squeegee. Single component cold applied elastomeric waterproofing coating (Dr. Fixit RoofSeal Ultra or equivalent) shall be applied by sprinkling some water over the roof just before application of 1st coat @ 0.75 ltrs/Sqm uniformaly over the entire flat surface incl verticle parapets incl reinforcing fibre (45 gsm Glass fiber mesh) and allow for drying for 12 hrs and 2nd coat @ 0.75 ltrs/Sqm shall be apllied (perpendicular direction of 1st coat as per manufacturer's instruction) on dried 1st coat complete all as specified. Note : (i) Entire application shall be carried out by TRAINED CERTIFIED MANUFACTURER'S APPLICATOR only. (ii) Waterproofing treatment shall cover min 10 yrs WARRENTY by the applicator and Contractor. (iii) Quoted rates shall include WATER PONDING TEST : After full drying of second coat for at least 72 hrs, a water ponding test can be performed by filling water on the terrace by carefully blocking all the down take drain outlets without damaging the coating. The test shall be carried out for 48 hrs by filling water up to 50 mm level. Observe for leakages, if any, and then remove the water and allow the coating to dry completely for handingover of site. (iv) Application shall be restricted in open sunlight having temperature above 35°C.

M&L for rendering 15mm thick in cement mortar (1:4) on brick work or concrete surfaces of wall, finished even and smooth without using extra cement and including highly stretchable, durable and hydrophobic, Nanotechnology based Elatomeric Hydrophobic Powder/admixture (EHP) powder @ 1% of cement content complete all as specified and directed. Note : Elastomeric Hydrophobic Powder/ Admixture (EHP) shall be measured and paid separately under respective 'Supply only' item.

M&L for applying 3mm thick wall care putty on wall surfaces complete all as specified and directed.

M&L for applying two coats of cement base paint after preparation of new surfaces of wall over a coat of primer complete all as specified and directed. (Note : Application should be done through smart painting tools as per CA provision)

M&L for applying three coats of white wash after preparation of new surfaces of ceiling complete all as specified and directed.

M&L for two coats of Oil bound distemper over prepared new surface of ceiling over a coat of approved primer (primer shall be of similar make that of Oil Bound Distemper) using AUTO-ROLLER and AIR-LESS PAINT SPRAYER using smart painting technique complete all as specified and directed.

M&L for applying two coats of synthetic enamel paint over a coat of pink primer after preparation of new or previously untreated wooden surfaces of any description over 10 cm girth or width complete all as specified and directed.

M&L for applying two coats of synthetic enamel paint (1st grade quality) over a coat of red oxide primer after preparation of new or previously untreated steel surfaces of any description over 10cm width or girth complete all as specified and directed.

Taking up or down old unserviceable 15 mm bore GI tubings including connections complete all as specified and directed.

Taking up or down old unserviceable 20 mm bore GI tubings including connections complete all as specified and directed.

S&F of 20mm outer dia CPVC pipes SDR 11 and plain CPVC SDR 11 fittings, concealed joint with CPVC adhesive taflon tape complete to walls and ceilings or laid in floors including all connected brass CPVC fittings and cutting grooves, filled with Cement mortar(1:6) complete all as specified and as directed.

S&F of 25mm outer dia CPVC pipes SDR 11 and plain CPVC SDR 11 fittings, concealed joint with CPVC adhesive taflon tape complete to walls and ceilings or laid in floors including all connected brass CPVC fittings and cutting grooves, filled with Cement mortar(1:6) complete all as specified and as directed.

S&F of 50mm outer dia CPVC pipes SDR 11 and plain CPVC SDR 11 fittings, concealed joint with CPVC adhesive taflon tape complete to walls and ceilings or laid in floors including all connected brass CPVC fittings and cutting grooves, filled with Cement mortar(1:6) including taking down old unserviceable one complete all as specified and as directed.

Disconnecting existing water tanks of (not exceeding 250 litres in capacity), setting aside (or lowering if required) and cleaning, removing all scale and dirt etc from tanks and mouth of pipe including hoisting (if required) reconnecting and refixing in position with required fittings complete all as specified and directed. (NOTE: Date of cleaning must be written at side of water tank with white paints after cleaning of tank)

Disconnecting existing water tanks of (exceeding 250 & not exceeding 500 litres in capacity), setting aside (or lowering if required) and cleaning, removing all scale and dirt etc from tanks and mouth of pipe including hoisting (if required) reconnecting and refixing in position with required fittings complete all as specified and directed. (NOTE: Date of cleaning must be written at side of water tank with white paints after cleaning of tank)

Disconnecting existing water tanks of (exceeding 500 & not exceeding 1000 litres in capacity), setting aside (or lowering if required) and cleaning, removing all scale and dirt etc from tanks and mouth of pipe including hoisting (if required) reconnecting and refixing in position with required fittings complete all as specified and directed. (NOTE: Date of cleaning must be written at side of water tank with white paints after cleaning of tank)

S&F in repairs of 15 mm bore stop valve (suitable for 25mm outer dia CPVC pipe), fancy type chromium plated with long shank and cup (concealed type) cast copper alloy screwed down high pressure with crutch or butterfly handle screwed both ends for iron pipe or for unions complete all as specified and directed.

S&F in repairs of 15 mm bore stop valve, fancy type chromium plated with long shank and cup (concealed type) cast copper alloy screwed down high pressure with crutch or butterfly handle screwed both ends for iron pipe or for unions complete all as specified and directed.

S&F in repairs for 25mm dia ball brass valves high pressure with polythelene float and fly nut, screwed for iron pipe or brass ferrule & fixed complete all as specified and directed.

Supply only water proofing compound complete all as specified and directed.

DE CONSTRUCTION CO (BID ID -3437247)

PIONEER TRADING (BID ID -3436802)

M/S. D. K. SINGHA (BID ID -3437039)

M AND D CONSTRUCTION (BID ID -3437002)

DAS ENTERPRISE (BID ID -3437079)

M/S. RISING ENTERPRISE (BID ID -3437129)

M/s S K SHARMA (BID ID -3436961)

RAJ TRANCON (BID ID -3436739)