REPAIR TO WATER PROOFING TREATMENT FOR ROOF SLAB EXTERNAL WALLS CRACK FILLING IN CERTAIN BUILDINGS IN HANSA TECHNICAL AREA NAY G ETC UNDER AGE BR I OF GE NW VASCO

Amount

M & L for gunniting exposed concrete surfaces of beam, column and slabs with one layer of complast spray set modified concrete in proportion (50Kg cement 3 to 6mm granite chips 75 kg zonal sand 75 kg and complast 2% by weight of cement water 1 to the following locations :-

40 mm thick in columns

30 mm thick in beams

20 mm thick in slabs

S&F hard drawn steel wire fabric cut to length bent to shape required and tying with and including mild steel wire (annealed) not less than 0.9mm dia not exc. 4 Kg/sqm complete all as specified and as directed.

Bonding the entire exposed surface with one coat of fosroc Nitop bond SBR as per manufacturer instructions over wire fabric and surfaces of concrete structure complete all as specified and as directed.

M & L for Rendering 5 mm thick cement plaster on ceiling in CM 1:3 finished to even & smooth w/o using extra cement complete all as specified and as directed.

M & L for Rendering 15 mm thick cement plaster on concrete solid block walls in two coats first coat of 10 mm in CM 1:4 & 2nd coat of 5mm in CM 1:4 mixed with integral water proofing compound finished to even & smooth w/o using extra cement. Note :- Integral water proofing compound will be measured and paid seperately.

Supply only water proofing compound.

M & L for rendering 15 mm thick in CM 1:6 on concrete solid block wall internal surface finished even and smooth without using extra cement complete all as specified and as directed.

M & L for removing the spalled concrete upto the sound core level and clean reinforcement with wire brush to remove loose scales, cleaning of the surface with wire brush and plenty of water so as to remove the loose particles, dust, laitance etc, remove the rust by using rust remover of approved make Apply passivator coat using zinc primer of approved make on reinforcement bars. Apply bond coat using "Epoxy bonding agent" on entire surface, when bond coat becomes tacky apply repair mortar (mortar to be prepared by adding 20% Dr. Fixit Pidicrete MPB or equivalent to 1:3 cement sand mortar) at a thickness upto 15mm and subsequently built up the required thickness in subsequent layers of 15mm and finishing the final layer even and smooth as per manufacturers instruction and as directed. Make : M/s Pidilite Industries Ltd or Equivalent in M/S Krishna Conchem Products/ STP Ltd. Note- Universal polymerised repairs mortars single pack like pagel U40 or Dr fixit micro concrete may also be used

Taking down cement plastering at any description on brick or stone wall etc including raking out joints hacking for key scrubbing down with water etc and removal of debries and depositing where directed.

M&L Preparing new plastered wall surfaces and applying two coat of OBD over chalk whiting, on plastered surfaces, preparatory to distempering, after applying 3mm thick wall care putty on wall complete all as specified and as directed.

M&L Preparing new plastered ceiling surfaces and applying two coats of OBD over chalk whiting, on plastered surfaces, preparatory to distempering, after applying 3mm thick wall care putty on ceiling complete all as specified and as directed.

Dismantling/Taking out existing hessain base felt of any other existing water proofing treatment from roof including cement plaster and exposing the top surface of RCC slab including removing dust, dirt and washing the roof and removing the dismantled debris to a distance exceeding 200 m but not exceeding 3000m spread and levelled as directed by Engineer-in-Charge.

Dismantling Single layer Mangalore pattern or similar tiles in roofing embedded in cement mortar as directed by Engineer-in-Charge.

M&L for Laying of Mangalore tiles and Providing and making mortar battens with 1:3 cement sand mortar followed by laying Mangalore tiles after 7 days curing of mortar battens including fixing of ridge tiler with 1:5 cement sand mortar complete all as specified and as directed.

M&L for 10mm thick plaster in CM (1:4) mixed with 3% integral water proofing compound over roof top surface incl filling all cracks by forming groove of 5mm x 5mm finished to even & smooth w/o using extra cement. Note :- Integral water proofing compound will be measured and paid seperately

M&L for applying evenly & priming with oil bound bituminius primer at 0.4Ltr per sqm for water proofing treatment complete all as specified and as directed.

M&L for APP based polymeric membrane minimum weighing 3Kg/sqm and minimum 3mm thick reinforced with polyster non wove fabric (wt. not less than 150 gms/sqm) land on primed surface by forced application completed all as specified.

M&L for Surface Preparation, Cleaning the surface, removing the laitance, greese, old paints, contaminants, moss etc. with wire brush / high preesure jet. Damaged or loose plaster to be replaced & repaired with polymer modified cement-sand mortar with Dr. Fixit Pidicrete URP. Small cracks upto 5mm needs to be repaired with crack filling material Dr. Fixit Crack X and the cracks above 5mm shall be repaired by polymer modified mortar with Pidicrete URP complete all as specified and as directed. Make : M/s Pidilite Industries Ltd or Equivalent in Sika/ STP Ltd.

M&L for SIKA Bit® W-1 (Red or Grey powder) polymer modified cementitious adhesive over prepared concrete surface with mixing ratio of 8.75 ltrs of clean water per 30 Kg bag of SIKA Bit® W-1 with consumption of 2-3 Kg/Sqm complete all as specified and directed by Engr-in-charge.

M&L SIKA Bit® W-15, 1.5 mm thick (with 10% variation) double sided modified bitumen water proofing membrane consisting of cross laminated PE film and two modified bitumen layers covered with transparent release liners complete all as specified and directed by Engr-in-charge.

Dismantling mild steel work of any description not otherwise provided for complete all as specified and as directed.

S & F Mild steel roof trusses (framed), Trussesd, purlins, crane grantries, rails and framings and heavy bracket framing (Beam, tee, angle, channel or flat sections) confrming to Fe 410-W including cleats, distance pieces etc complete all as specified and as directed.

M&L for preparing new surfaces of iron and steel and applying one coat of redoxide zinc chrome primer and two coats of Epoxy anti- corrosive paint over 10 cm width or girth complete all as specified and as directed.

M&L for preparation of old steel surface and applying one coat of Epoxy anticorrosive paint over 10 cm width or girth complete all as specified and as directed.

Dismantling plain or corrugated AC sheeting any gauge, thickness in roof coverings complete.

S&F Pre-painted galvalume aluminum zinc coating GI based corrugated steel sheet 0.50mm thick of any colour having tensile strength of 550 Mpa as in roof covering / cladding to wall of building /Hangar, fixed with self tapping screws complete all as specified and as directed.

Pre-painted galvalume aluminium zinc coating GI based plain steel sheet 0.50mm of an colour having tensile strength of 550Mpa as in roof covering/cladding to wall, fixed with self tapping screws complete all as specified and as directed.

Taking down eaves gutters and rainwater pipes (any size or pattern), including all fittings, heads, shoes, bends, swan-necks, etc., including cleaning or refixing or removal to Store (measured overall as fixed along the centre line over fittings and accessories) complete.

S & F 110 mm bore PVC (SWR) Soil, waste and vent pipes single socketed in any length with rubber ring joints fixed to walls complete all as specified and as directed.

S&F PVC (SWR) bends of 110mm radius.

S&F PVC 1/2 rounded gutters of 60cm with union sockets to jointes set in approved jointing compound complete all as specified and as directed.

S&F PVC (SWR) pipes single socketed in any length with rubber ring joints fixed to walls 200mm dia complete all as specified and as directed.

S&F for PVC plain bends 200mm bore complete.

Dismantaling water tanks and removing to store exc 250 and n.exc 500 ltrs complete.

Dismantaling water tanks and removing to store exc 500 but n. exc 1000 ltrs complete.

S&F rotational moulded polyethylene water storage tanks (cylinderical, vertical with closed top) of 500 Ltrs capacity hoisted and fixed in position inc 20mm bore PVC float valve all as specified and directedin SSR Pt I complete all as specified and as directed.

S&F rotational moulded polyethylene water storage tanks (cylinderical, vertical with closed top) of 1000 Ltrs capacity hoisted and fixed in position inc 20mm bore PVC float valve all as specified and directedin SSR Pt I complete all as specified and as directed.

Disconnecting existing tanks of capacity exc 250 and n exc 500 Ltr setting aside (or lowering if required) for repairs, clraning etc and hoisting if required reconnecting and refixing in position complete all as specified and as directed.

Disconnecting existing tanks of capacity exc 500 and n exc 10000 Ltr setting aside (or lowering if required) for repairs, clraning etc and hoisting if required reconnecting and refixing in position complete all as specified and as directed.

Taking up or down steel water tubing and connections including cleaning for refixing or removing to store 20 mm dia complete all as specified and as directed.

Ditto as the item mentioned above but of 25 mm dia.

Supplying and laying of CPVC pipes SDR 11 & Plain CPVC SDR 11 fittings on walls/ceiling or laying in floors complete all as specified of dia 20mm complete all as specified and as directed.

All as the item No. 44.00 but of 25 mm dia complete.

S&F in repair stop valve 20mm dia of PTMT any colour high pressure screwed for iron pipe and fixed. (Minimum weight 15mm-90gms) complete all as specified and as directed.

S&F in repair Door closer hydraulically regulated, aluminium extruded body designation No. 3, universal type, suitable for door shutters of 851 to 1000 mm in width and of weight between 61 to 80 kg complete all as specified and as directed.

Demolition of stone /boulder masonry, built in cement mortar including all quoins, arches, pillars, etc., but excluding ashlar facings, dressed stonework and precast concrete articles complete all as specified and as directed.

M&L Pre - cast cement concrete masonry with Grade C-5.0, (20mm graded stone aggregate) with solid blocks wall built in cement mortar 1:6 complete all as specified and as directed.

M & L for preparation of new plastered surfaces of walls and applying Two or more coats of 100% Premium acrylic emulsion paint having VOC less than 50 gm/litre and UV resistance as per IS 15489:2004, Alkali & fungal resistance,dirt resistance exterior paint of required shade (Company Depot Tinted) with silicon additives @ 1.43 litre/ 10 sqm over and including priming coat of exterior primer applied @ 0.90 litre/ 10sqm all as specified and as directed.

M & L for preparation of old surface of wall plastered including cornices and pillasters etc and applying one coat of white wash on wall all as specified and as directed by Engr-in-Charge.

All as per item No. 51.00 but on ceiling complete.

M & L for preparation of old surface of wall plastered including cornices and pillasters etc and applying one coat of cement base paint on wall all as specified and as directed by Engr-in-Charge.

M & L for preparation of old painted surface of wall and applying one coat of oil bound distemper complete all as specified and as directed.

Ramesh Enterprises (BID ID -3185290)

M/s. R.S. LAWANDE (BID ID -3185528)

M/s VEEJEE ENTERPRISES (BID ID -3185053)

K M SUBHANAIAH (BID ID -3184842)

M/S DUBAL CONSTRUCTION (BID ID -3186567)

M/S jvsr constructions (BID ID -3186394)