86079REPAIRS TO WATER PROOFING TREATMENT TO RCC SLAB AND SUNKEN FLOOR TREATMENT AND CERTAIN OTHER MISC WORK TO CERTAIN BUILDING AT AFMC B/R-I (CENTRAL) PUNE.

Amount

Removing of old water proofing treatment including screed bed and cleaning the surface of slab with wire brushes removing dust, foreign materials including flushing at junction of wall and removing the rubbish off the premises to a distance exc 500 m all as directed by Engineer-in-Charge.

M & L for Water proofing treatment to RCC roof slab, walls, chhajjas etc, shall be carried out as specified below and as directed by Engineer-in-Charge. (a) M & L for 10 mm thick plaster screed bed layer in CM 1:3 on concrete surfaces with and including necessary water proofing chemicals. (b) Preparing plastered surfaces of roof slab, walls, chhajjas etc, by brooming with broom sweeping free from dirt dust etc & evenly applying a coat of approved bituminous primer @ 0.20 Kg/sqm of area complete all as specified. (c) Laying APP polymer modified approved membrane, non woven, polyester, weighing not less than 3.5 Kg/sqm with laps & overlaps as specified & joints sealed and applied complete by torch application method all as specified & directed by Engr-in-Charge. Carrying out test by flooding water for 24 hrs for leakage & seepages and rectifying the same to the entire satisfaction of GE. (d) Finally applying a coat of solar reflective bituminous aluminium paint @ 0.15 ltr/sqm on the top of membrane surfaces complete all as specified & as directed by Engr in Charge.

Demolition of cement concrete of any description and in any position on roof slab as in padding etc complete all as specified and as directed.

M&L for PCC 1:2:4 type B0 using 12.5 mm graded stone aggregate as in PCC padding in roof kerbs or mud stops, rounded and chamfered on edges and on chajjas laid over RCC surface finished even and smooth without using extra cement includng necessary water proofing chemicals all as specified and directed by the Engr-in-charge.(Note : WPC shall be measured and paid separately)

Supply only integral water proofing compound, ISI marked complete all as specified and directed . (For item No 4 only)

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

M&L for rendering 15 mm thick in cement mortar 1:4 on brick/ stone surfaces finished even smooth with sponge finish complete all as specified and as directed.

M&L for rendering 10 mm thick on fair faces of brick /concrete surfaces in cement mortar (1:6) finished with sagol finish complete all as specified and as directed.

M&L for making hole and fixing the mettalic packer for hydrophobic PU foam and sealer with out disturbing existing structure as manfufacturers insrtuctions complete all as directed.

M&L for second course injection of core seal 135A /core seal 135B all as per manfucturer's insructions and as directed by Engineer-in-Charge.

M& L for core seal 357A core seal 357 CAT for carrying out non destructive WPT of sunken portion slab, floors of bathroom WC,WHB and floor traps (combined unit) by using construction chemical methods such as hydro phobic PU grouting ,epoxy coatings etc. including cleanig of surfaces with wire brush ,detecting the sources of leakag and repairing,removing /taking down insound treatment /surfaces all as per manufacturers instructions and as directed by Engr-in-charge.

M&L for providing filling epoxy putty into crack after opening up crack in V-groove manner.Approximate 5x5mm size using mechanical cutter properly cleaning the same to remove loose dust,dirt etc.and filling the same using three component, solvent free,thxotropic, epoxy resin based putty having 100% solid contents, density of 1.64-1.68 g/cc, compressive strength @ 7days-50N/mm2 ,pot file of 40 minutes at 25 c, drying time 8 hrs,at 25 c .Recoatable time 24 hrs after finishing in line and level with exisiting concerte surfaces etc. M&L for Reinstatment of the imperfections and blow holes/pits with polymer mortar all as specified and directed by engineer -in-charge.

M & L for scraping the existing plaster upto the brick work applying two coats of LP(f) & covering the entire area with polyrised poly bag with wire mesh and cover it with new plaster, followed by application of siliconate injection grout for rising dampness grouting should be identified and marked for in setting the nozzle for rising dampness. The spacing of holes will two nos hole in every one meter, using 12mm to 15mm dia drill bit, drill holes at an inclination of 45 the extent of 1/2 to 3/4 of the wall thickness and should be injected in the lowest possible point dampness and the material used in the wall and its construction, pump sufficient to create pressure of approx 3Kg/sqcm must inject chemical through pressure grouting machine. Inject the dilute liquid (1:4) by pumping till the point of return application of two coats of water based hyginic coat containing liquid is felt (min 10 lit) and allow to remain for some time before the next nozzle and observing the area for 24 hours including removing the extended/protruding nozzle and seal with the suitable compound the treated area should be washed througly followed by application of two coats of water based hygynic coat containing inentire scraped area and including removing of old material of any description, complete all as specified and directed by Engineer-in-Charge.

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

S&F pre-painted galvalume aluminum zinc coated GI based corrugated steel sheet 0.50 mm thick fixed in any position where directed of any colour having tensile strength of 550 Mpa as in roof covering/cladding to wall, fixed with self tapping screws with one corrugation side lap, bent to shape complete all as specified and as directed.

S&F pre-painted galvalume aluminum zinc coated GI based plain steel sheet 0.50 mm thick fixed in any position where directed of any colour having tensile strength of 550 Mpa as in roof covering/cladding to wall, fixed with self tapping screws with one corrugation side lap, bent to shape complete all as specified and as directed.

Demolition of brick work or precast block walling built in cement mortar including all quoins, arches, pillars etc complete all as specified and as directed.

M/L for PCC design mix solid block masonry exc 10 cm in width built in CM (1:6) Gde-C5 complete all as specified and as directed.

All as per item No 18 here- in- above but Except block masonry.

Dismantling of AC sheet corrugated, or semi corrugated in roof covering complete all as directed.

M & L for 6 mm thick asbestos cement, corrugated or semi corrugated sheets in roof walls fixed with 'L' type or 'J' type or cranked hook bolts, washer etc complete all as specified and as directed.

Fixing only 6 mm thick AC sheets in roof walls with 'J' or' L' hook with washers complete all as specified and as directed.

M & L for asbestos cement two piece adjustable ridge 6 mm thick fixed with L or J bolts with washer etc complete all as specified and as directed.

Fixing only asbestos cement two piece adjustable ridge 6mm thick fixed with L or J bolts with washer etc. complete.

Dismantling of single layer mangalore pattern or similar tiles in roofing etc complete all as specified and directed by Engineer-in-Charge.

M&L for roof tiles, mangalore Pattern ,interlocking at side joints, laid dry etc complete all as specified and directed by Engineer-in-Charge.

All as per item No 26 here- in- above but except tile etc complete all as specified and directed by Engineer-in-Charge.

S & F in repairs Battens for tiles, shingles etc,n exc 15cm of size including tilting fillets all as specified and directed by Engineer-in-Charge.

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