Repairs to Toilets in Telephone Bhavan, Port Blair

Amount

Demolishing cement concrete manually/ by mechanical means including disposal of material within 50 metres lead as per direction of Engineer - in - charge. (a) Nominal concrete 1:3:6 or richer mix (i/c equivalent design mix).

Dismantling old plaster or skirting raking out joints and cleaning the surface for plaster including disposal of rubbish to the dumping ground within 50 metres lead.

Disposal of building rubbish / malba / similar unserviceable, dismantled or waste materials by mechanical means, including loading, transporting, unloading to approved municipal dumping ground or as approved by Engineer-in-charge, beyond 50 m initial lead, for all leads including all lifts involved.

Providing and laying cement concrete in retaining walls, return walls, walls (any thickness) including attached pilasters, columns, piers, abutments, pillars, posts, struts, buttresses, string or lacing courses, parapets, coping, bed blocks, anchor blocks, plain window sills, fillets, sunken floor, etc., up to floor five level, excluding the cost of centering, shuttering and finishing : (a) 1:2:4 (1 Cement : 2 coarse sand : 4 graded stone aggregate 20 mm nominal size)

Providing and fixing 18 mm thick gang saw cut, mirror polished, premoulded and prepolished, machine cut for kitchen platforms, vanity counters, window sills, facias and similar locations of required size,approved shade, colour and texture laid over 20 mm thick base cement mortar 1:4 (1 cement : 4 coarse sand), joints treated with white cement, mixed with matching pigment, epoxy touch ups, including rubbing, curing, moulding and polishing to edges to give high gloss finish etc. complete at all levels. (a) Granite of any colour and shade (i) Area of slab over 0.50 sqm

Providing edge moulding to 18 mm thick marble stone counters, Vanities etc., including machine polishing to edge to give high gloss finish etc. complete as per design approved by Engineer-in-Charge. (a) Granite Work

Providing and fixing stone slab with table rubbed, edges rounded and polished, of size 75x50 cm deep and 1.8 cm thick, fixed in urinalpartitions by cutting a chase of appropriate width with chase cutter and embedding the stone in the chase with epoxy grout or with cement concrete 1:2:4 (1 cement : 2 coarse sand : 4 graded stone aggregate 6 mm nominal size) as per direction of Engineer-in-charge and finished smooth. (a) Granite Stone of approved shade

Providing and fixing Ist quality ceramic glazed wall tiles conforming to IS: 15622 (thickness to be specified by the manufacturer), of approvedmake, in all colours, shades except burgundy, bottle green, black of any size as approved by Engineer-in-Charge, in skirting, risers of stepsand dados, over 12 mm thick bed of cement mortar 1:3 (1 cement : 3 coarse sand) and jointing with grey cement slurry @ 3.3kg per sqm, including pointing in white cement mixed with pigment of matching shade complete.

Providing wood work in frames of doors, windows, clerestory windows and other frames, wrought framed and fixed in position with hold fast lugs or with dash fasteners of required dia & length ( hold fast lugs or dash fastener shall be paid for separately). (a) Second class teak wood/Padauk wood

Providing 40x5 mm flat iron hold fast 40 cm long including fixing to frame with 10 mm diameter bolts, nuts and wooden plugs and embedding in cement concrete block 30x10x15cm 1:3:6 mix (1 cement : 3 coarse sand : 6 graded stone aggregate 20mm nominal size).

Providing and fixing aluminium extruded section body tubular type universal hydraulic door closer (having brand logo with ISi, IS : 3564, embossed on the body, door weight upto 36 kg to 80 kg and door width from 701 mm to 1000 mm), with double speed adjustment with necessary accessories and screws etc. complete.

Providing and fixing aluminium tower bolts ISI marked anodised (anodic coating not less than grade AC 10 as per IS : 1868 ) transparent or dyed to required colour or shade with necessary screws etc. complete : (a) 150x10 mm

Providing and fixing aluminium handles ISI marked, anodised (anodic coating not less than grade AC 10 as per IS : 1868) transparent or dyed to required colour or shade with necessary screws etc. complete :(a)100 mm

Providing and fixing aluminium hanging floor door stopper, ISI marked, anodised (anodic coating not less than grade AC 10 as per IS : 1868) transparent or dyed to required colour and shade, with necessary screws etc. complete. (a) Twin rubber stopper

Providing and laying rectified Glazed Ceramic floor tiles of size 300x300mm or more (thickness to be specified by the manufacturer), of 1stquality conforming to IS : 15622, of approved make, in colours White, Ivory, Grey, Fume Red Brown, laid on 20 mm thick cement mortar 1:4(1 Cement: 4 Coarse sand), jointing with grey cement slurry @ 3.3kg/sqm including grouting the joints with white cement and matching pigments etc., complete.

Providing and fixing on wall face unplasticised Rigid PVC rain water pipes conforming to IS : 13592 Type A, including jointing with seal ring conforming to IS : 5382, leaving 10 mm gap for thermal expansion,

(i)Single socketed pipes. (a) 75 mm diameter

(i)Single socketed pipes. (b) 110 mm diameter

Providing and fixing on wall face unplasticised - PVC moulded fittings/ accessories for unplasticised Rigid PVC rain water pipes conforming to IS : 13592 Type A including jointing with seal ring conforming to IS :5382 leaving 10 mm gap for thermal expansion.

(a)Single tee with door . (i) 110x110x110 mm

(a)Bend 87.5° . (i) 110 mm bend

Distempering with 1st quality acrylic distemper, having VOC (Volatile Organic Compound ) content less than 50 grams/ litre, of approved brand and manufacture, including applying additional coats wherever required, to achieve even shade and colour. (a) One coat.

Painting with synthetic enamel paint of approved brand and manufacture of required colour to give an even shade : (a) One or more coats on old work.

Polishing on wood work with ready made wax polish of approved brand and manufacture : (a) Old work .

Repairs to plaster of thickness 12 mm to 20 mm in patches of area 2.5 sq. meters and under, including cutting the patch in proper shape, raking out joints and preparing and plastering the surface of the walls complete, including disposal of rubbish to the dumping ground , all complete as per directions of Engineer-In-Charge. (a) With cement mortar 1:4 (1cement: 4 coarse sand).

Renewing glass panes, with wooden fillets wherever necessary: (a) Float glass panes of nominal thickness 4 mm (weight not less than 10kg/sqm).

Cleaning of terrace/loft water storage tank (inside surface area) upto 2000 litre capacity at all heights with coconut brushes, duster etc., removal of silt, rubbish from the tank and cleaning the tank with fresh water disinfecting with bleaching powder @ 0.5gm per litre capacity of tank, including marking the date of cleaning on the side of tank body with the help of stencil and paint and disposing of malba, all complete as per direction of Engineer-in-Charge. (The old date already written on tank should be removed with paint remover or black paint and if date is not written with the stencil or old date is not removed deduction will be made @ Rs. 0.10 per litre if during cleaning any GI fittings or ball cock is damaged that is to be repaired by contractor at his own cost and nothing extra will be paid on this account)

Providing and fixing wash basin with C.I. brackets, 15 mm C.P. brass pillar taps, 32 mm C.P. brass waste of standard pattern, including painting of fittings and brackets, cutting and making good the walls wherever require: (a) White Vitreous China Flat back wash basin size 550x 400 mm with single 15 mm C.P. brass pillar tap

Providing and fixing P.V.C. low level flushing cistern with manually controlled device (handle lever) conforming to IS : 7231, with all fittings and fixtures complete. (a) 10 litre capacity - White

Providing and fixing white vitreous china flat back or wall corner type lipped front urinal basin of 430x260x350 mm or 340x410x265 mm sizes respectively.

Providing and fixing P.V.C. waste pipe for sink or wash basin including P.V.C. waste fittings complete. (a) Flexible pipe. (i) 32 mm dia

Providing and fixing 600x450 mm beveled edge mirror of superior glass (of approved quality) complete with 6 mm thick hard board ground fixed to wooden cleats with C.P. brass screws and washers complete.

Providing and fixing Chlorinated Polyvinyl Chloride (CPVC) pipes, having thermal stability for hot & cold water supply, including all CPVC plain & brass threaded fittings, including fixing the pipe with clamps at 1.00 m spacing. This includes jointing of pipes & fittings with one step CPVC solvent cement and testing of joints complete as per direction of Engineer in Charge. : Internal work - Exposed on wall

a) 20 mm nominal outer dia. Pipes.

b) 25 mm nominal outer dia .Pipes.

Providing and fixing C.P. brass bib cock of approved quality conforming to IS:8931: (a) 15 mm nominal bore.

Providing and fixing C.P. brass angle valve for basin mixer and geyser points of approved quality conforming to IS:8931 : (a) 15mm nominal bore

Providing and fixing PTMT grating of approved quality and colour. (a) Circular type. (i) 125 mm nominal dia with 25 mm waste hole.

Providing and fixing PTMT angle stop cock 15 mm nominal bore. Weighing not less than 85 gms.

Providing and fixing unplasticised P.V.C. connection pipe with PTMT Nuts, collar and bush of approved quality and colour. (a) 15 mm nominal bore with 45 cm length.

Cutting holes up to 30x30 cm in walls including making good the same: (a) With common burnt clay F.P.S. (non modular) bricks.

Structural repairs to RCC members due to corrosion of reinforcment (and subsequent cracking and spalling) involving following operations.

(a)Removing completely cracked/ loose concrete by gentle taping of the affected portions ( no heavy hammering shall be resorted to) followed by chiselling, if necessary, to expose the corroded.

(b) Priming the exposed steel and concrete surfaces to be carried out as follows. The thoroughly cleaned reinforcing bars shall be coated with an anticorrosive epoxy primer such as CERAZINC ZR of M/s CERACHEM or equivalent chemical of reputed manufacturers. The primer shall be an epoxy, two component, zinc rich liquid packed and supplied ready to use with unbroken 40 microns ( dry film thickness) coating and capable of providing active galvanic protection. It shall have suitable viscosity to enable the coating to penetrate in to imperfections and pits within the surface of structural steel. The freshly exposed and cleaned concrete surfaces shall be primed with epoxy based bonding agents such as CERABOND EP of M/S. CERACHEM of equivalent chemical of reputed manufactures. The concrete substrate should be thoroughly dampened with water and any excess water removed prior to the application of primer. It shall then be primed by throughly applying a slurry coat of bonding agent with water and cement in the proportion recommended by the manufacturer. (This shall be done immmediatly prior to the rebuilding of the concrete section). reinforcement bars completely, ensuring that all loose scale and corrosion deposits on bars are fully removed with an all round minimum celarance of 2-3 mm around the corroded bars. Steel shall be cleaned to a bright condition preferably with grit-blasting. Reinforcment corroded more than 40 % of the original section, shall be replaced with equivalent new bars, duly welded to sound main bars on both ends. ( cost of providing new reinforcement bars will be paid for seperately ). The freshly exposed concrete portions shall be cleaned throughly to completely remove corrossion deposits, any loose/flaky portions, smearings etc. to yield a clean and rough textured surface.

(c) Rebuilding / reinstating the structural members to their original dimensions by building up with two component high build structural grade polymer based cementitious reinstatement mortar such as CERA FIBRECRETE of M/s. CERACHEM or equivalent chemical of reputed manufacturers. The reinstatement mortar ( CERA FIBRECRETE or equivalant) shall be applied as soon as the bonding agent. CERA BOND EP or equivalent ) becoms tacky. The bond coat becomes tacky in about 2 minutes and the mortar shall be applied within 5-120 minutes. The entire mixing and application of the chemicals shall be carried out as per the instructions of the manufacturer.

(d) Finishing the surfaces smooth with polymer modified cementitious mortar formed by mixing cement with epoxy based mortar modiying agents such as CERA BOND EP of M/s. CERACHEM or equivalent chemical of reputed manufacturers, in the proportion recommended by the manufacturer, the nominal thicknes of rendering shall be 6 mm. (Rates for the above operations shall be inclusive of the cost centring, shuttering and scaffolding required)

Providing and fixing approved quality 25 mm thick PVC door shutter with frame of brand syntex or equvalent including all fixtures fittings etc complete as per the direction of the Engineer in Charge.

Cutting of trees grown in the walls/shafts up to floor five level of departmental buildings with necessary scaffolding arrangements, safety precautions, making good the walls with Cement Mortar, applying chemical to prevent further growth etc., complete as directed by the Engineer-in-Charge.

Cleaning of toilet wall and floor with acid to make it clean and applying grouts where ever required including cleaning of floor traps for any chokage and smooth flowing of waste water as per direction of the Engineer-in-charge

Cleaning of manholes alongwith connecting sewer lines including removing the soil, waste, sludge deposits, earth, rubbish etc and disposal of same including flushing with sufficient water all complete as per direction of Engineer-in-charge.

Taking out existing wooden door shutter, repair by cutting to required size and refixing of repaired door shutters to existing door frames, including replacement of hinges with screws, etc. as required, all complete as per the direction of the Engineer-in-charge.(New members fixed if any, shall be paid extra).

Credit for available dimantled unserviciable materials to agency. (a) Old rusted MS/GI sheet,pipe, angle, flat, Tee and the like

Dismantling GI pipe and fittings including clamps etc. and stacking within a lead of 50Mtrs.(Internal work-Exposed on wall. (i) 15 to 40mm nominal bore

Providing and fixing in position unplasticised PVC moulded fittings to unplasticised PVC pipes with solvent cement and testing the same for water leakage as per direction of the E-I-C. (a) Trap 100mm inlet and 100mm outlet