REPAIRS TO ROOF TREATMENT, LEAKAGE, SEEPAGE OF WALLS CHAJJAS FACIA BALCONY REPLACEMENT OF DAMAGED DRAIN PIPE AND WATER PIPELINES TO CERTAIN BUILDINGS IN RESIDENTIAL AREA AT NPOL KOCHI

Amount

Taking down existing water proofing treatment of any thickness from the roof /parapet including cement mortar bedding, PCC tiles, padding concrete if any, upto the RCC slab, removing debris off the premises and cleaning the roof complete all as specified

M&L for cutting the V grooves on the terrace slab where ever cracks are observed and fill the grooves with Fosroc heavy duty non shrink grout Convextra GP2 or equivalent apporved , coving all the 90 degree angles, slab/wall junctions with Convextra GP2 all as per manufacturer's instruction.

M&L providing a levelling course of cement concrete Type B-0, 1:2:4, using 12.50 mm stone aggregate, 40 mm thick maintains a slope towards the drain water pipes by adding a water proof admixture @ 250 ml per bag of cement. Note :-Admixture shall be measured and paid separately.

M&L for rendering with CM 1:3, 10 mm thick mixed with water proofing admixture of Fosroc/ Pidilite/ STP or equivalent, all as specified and directed. Note :-Admixture shall be measured and paid separately.

Supply only liquid water proofing admixture.

M&L for Poly Urethane based water proofing treatment to existing RCC roof slab with the following specifications .i) Cleaning the existing surface by mechanical means to make it free from any bituminous residue/dirt, oil and grease all as directed by Engineer In Charge.

ii)M&L for cracks treatment by cutting open cracks and cleaning it from dirts, loose materials etc and filling with Polyurethane based sealant with and including application of PU based primer all as directed by Engineer In Charge. iii)M&L applying water based polyurethane modified dispersion (single component, cold applied, non toxic , VOC compound) in three coats including one coat of primer of same material after dilution of water at 50% or specific primer matching same material as per manufacturer specification and as directed by Engineer In Charge. Note:- Properties of Poly urethane based chemical shall conform to following technical parameters a)Highly elastic b) UV resistance c)Adhesion to concrete > 1N/ Sqmm d)Tensile strength-not less than 2.0 N/Sqmm for free film Elongation not less than 300% e) Solid content by weight not less than 60% f)Air/Water permeability BSEN 12390 at 5 bar -72 hours should be NIL and minimum dry film thickness of water proofing membrane must be 1.00mm g)Accelerated weathering(ASTM 453) Pass 1000 hours

h) Reaction to fire - Non inflammable j) To be applied by the rep of manufacture’s authorised applicator only. Contractor has to be provide manufacture’s test certificate for the above mentioned Technical parameters and purchase vouchers. k)Removal of existing treatement to be paid separately l)Roof slop to be ensured to avoid water ponding/logging m) 300mm height of vertical surface/parapet wall to be treated with the same specification .Make:- Bostik, Fosroc, STP

Dismantling water tanks Exc 500 and n exc 1000 ltrs and removing to store all as specified and directed.

S & F Rotational moulded polyethylene water storage tanks 500 ltrs (cylindrical vertical with closed top) hoisted and fixed in position all as specified and directed.

S & F Rotational moulded polyethylene water storage tanks 1000 ltrs (cylindrical vertical with closed top) hoisted and fixed in position all as specified and directed.

Disconnecting existing tanks, setting aside (or lowering if required) for repairs, cleaning, etc. and hoisting if required reconnecting and re-fixing in position. (Cleaning repairing, etc. measured separately) 500 but not exceeding 1000 litre

Dismantling 75/100mm dia CI pipe jointed in cement mortar and taking out of trenches as required.

S & F PVC (SWR) pipes 110mm dia singlesocketed, in any lengthwith rubber ring joints, laidin trenches or in floors

S&F PVC (SWR) pipes single socketed, in any length with rubber ring joints, fixed to walls 75 mm bore.

S & F PVC (SWR) bends any radius 110 mm dia all as specified and as directed.

S & F PVC (SWR) bends any radius 75 mm dia all as specified and as directed.

Taking up or down steel water tubing 15mm and 20mm bore and connection complete all as specified and directed by Engineer-in-Charge

Supply and fix UUnplasticised PVC pipes of bore 20 mm pressure rating 10 kgf/cm2 fixed complete to walls, ceilings or in floors etc., any type of pipe all as specified and as directed

Supply and fix UUnplasticised PVC pipes of bore 25 mm pressure rating 10 kgf/cm2 fixed complete to walls, ceilings or in floors etc., any type of pipe all as specified and as directed

S&F in repairs bib taps 15mm bore, cast copper alloy chromium plated with crutch or butterfly handle, fancy type, screwed for iron pipe or for brass ferrule all as specified and as directed

S&F in repairs stop valves 15mm bore, cast copper alloy chromium plated fancy type, screwed down high pressure, with crutch or butterfly handle screwed both ends for iron pipe or for unions all as specified and directed.

Taking down old plaster and rendering 10mm thick in CM 1:6 on other than fair faces of brick or concrete surfaces finishing smooth and even and smooth without using extra cement making good match the old surface finish.

Material & Labour for 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/ 10 sqm over new surfaces Complete all as specified and directed.

Demolition Brickwork or stone/boulder masonry, built in lime mortar including all quoins, arches, pillars,etc, but excluding ashlar facings, dressed stone work and precast concrete articles

Providing Pre-cast cementconcrete blockmasonry withsolid blocks, exc. 10cm in width and setting in mortar,1:6complete, withType C1 1:3:6(20 mm graded aggregate)

Extra for forming fair finished drain or channel 30cm inner girth (inner girth shall only be measured and paid) in cement concrete, using extra cement, including forms, moulds, mitred / stopped ends etc., complete all as specified and directed.

Rendering 10mm thick in CM 1:3 on fair faces of brick work or concrete surfaces, finished even and smooth without using extra cement duly mixed with water proofing compount all as per manufacturers instructions, complete all as specified and directed.

Demolition and breaking up drain pipes 150 mm internal dia (Salt glazed ware, AC or Reinforced concrete) set in cement mortar all as specified and directed.

Concrete bed to drain pipes including packing under, and haunching against the sides of pipes after they are laid and tested; in plain cement concrete 1:3:6 type C1 (20mm graded stone aggregate) for 150mm bore of pipe, complete all as specified and directed

M&L Reinforced concrete drain pipes, class NP3, 150mm internal dia of pipe, pipes shall be laid level or to falls in trenches or on concrete bed and jointed complete with collars as specified, complete all as specified and directed.

Dismantling floor, hearth or wall tiling including cement mortar bedding (but nobacking), removing serviceable tiles to store and rubbish off the premises

M&L 25mm thick Cement concrete type B-0,1:2:4 (12.5mm graded aggregate) complete all as specified and directed.

M&L coloured chequered cement concrete tiles glossy finished 30cm x 30cm x 25 mm thick, with grey cement & pigments set, jointed and pointed in neat cement slurry in floors including 15 mm thick screed bed in cement mortar (1:4) and laying floor finishes complete all as specified and directed by Engineer-in-Charge.

PCC 1:3:6 type C-1(20 mm gardded aggregate) as in copings including necessary form work, complete all as specified and directed.

M&L Applying one coat of oil bound distemper over a coat of primer including preparation of old decorated or unplastered surfaces of walls including cornices, pilasters by brooming down or steel wire brushing, scrapping down, smoke soot moulds, moss and efflorescent salts and greasy spots and complete all as specified and directed by Engineer-in-Charge

M&L for removal of existing treatment from walls and applying one coat of weather proof exterior emulsion paint over a coat of primer complete all as specified & directed by Engineer-in-charge.

Dismantling of wrought iron or mild steel work of any description not otherwise provided for

S & F structural steel in roof trusses (framed), trussed, purlins, rails and fastenings and heavy bracket framing including distance pieces, cleats etc(F-290 Gd E-165) complete all as specified and directed.

M&L for Two coat of synethic enamel paint on new steel surface, including preparation of surface, of any description over 10CM width or girth not otherwise described over one coat of red oxide complete all as specified.

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

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

ZOOM ENTERPRISES (BID ID -3464365)

WELTRONENGINEERINGSERVICES (BID ID -3473550)

S A ENTERPRISES (BID ID -3473852)