Repairs bsnl bhavan

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)

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

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.

110 mm coupler

75 mm coupler

110 mm Single tee with door

75 mm Single tee with door

110 mm Bend 87.5° with door

75 mm Bend 87.5° with door

Providing and fixing unplasticised -PVC pipe clips of approved design to unplasticised - PVC rain water pipes by means of 50x50x50 mm hard wood plugs, screwed with M.S. screws of required length, including cutting brick work and fixing in cement mortar 1:4 (1 cement : 4 coarse sand) and making good the wall etc. complete.

110mm dia meter

75 mm dia meter

Providing, mixing and applying factory designed 2 part Elastomeric water proofing system of Sika,FOSROC ,Dr Fixit or equivalent )make etc complete all as per the following procedure and as directed by the Engineer in charge. a)The Concrete surface shall be made free of contamination, oils and grease by appying high pressure water jet etc.and properly pre-wetted to a saturated surface dry condition . b) Mix the the components part A and Part B in the ratio prescribed by the manufacturer in a clean container by slowly adding the powder component to the liquid component and stirring with slow speed mixer for 3 minutes to make a slurry concistency. c) Dampen all the surface immediately ahead of application.Apply the first coat by spray or by hand using a stiff brush applied in the same direction and leave to harden for 2 to 6 hours . d) . After hardeniung of first coat, Apply the second coat by brush applied in the cross wise direction e)After the application of second coat, the area treated is cured for minimum of 3 to 5 days to ensure full cement hydration and minimise cracking.

Repair to Aluminium door of size up to 1.20x2.25m including dismantling and reassembling using new pivot and members if required etc complete.

Dismantling roofing including ridges, hips, valleys and gutters etc.,erial within 50 metres lead of:

Asbestos Cement sheet

Providing and fixing precoated galvanised iron profile sheets (size, shape and pitch of corrugation as approved by Engineer-in-charge) 0.50 mm (+ 0.05 %) total coated thickness with zinc coating 120 grams per sqm as per IS: 277, in 240 mpa steel grade, 5-7 microns epoxy primer on both side of the sheet and polyester top coat 15-18 microns. Sheet should have protective guard film of 25 microns minimum to avoid scratches during transportation and should be supplied in single length upto 12 metre or as desired by Engineerin- charge. The sheet shall be fixed using self drilling /self tapping screws of size (5.5x 55 mm) with EPDM seal, complete upto any pitch in horizontal/ vertical or curved surfaces, excluding the cost of purlins, rafters and trusses and including cutting to size and shape wherever required.

Providing and fixing precoated galvanised steel sheet roofing accessories 0.50 mm (+0.05 %) total coated thickness, Zinc coating 120 grams per sqm as per IS: 277, in 240 mpa steel grade, 5-7 microns epoxy primer on both side of the sheet and polyester top coat 15-18 microns using self drilling/ self tapping screws complete :

Ridges plain (500 - 600mm)

Steel work in built up tubular (round, square or rectangular hollow tubes etc.) trusses etc., including cutting, hoisting, fixing in position and applying a priming coat of approved steel primer, including welding and bolted with special shaped washers etc. complete.

Hot finished welded type tubes

Dismantling carefully and stacking the precast rcc paver blocks of size up to 30cmx30cm x10cm thick and cushion bed of 6mm aggregate and relaying in line and level over a 50mm thick bed of 6mm coarse aggreagate available on west side of BSNL bhavan building after searching and rectification of leakage of drainage water from manholes and PVC drainage pipes , cleaning the area neatly including disposal of unserviceable materials and stacking of serviceable material with in 50 meters lead as directed by Engineer-in-charge.

Earth work in excavation by mechanical means (Hydraulic excavator) /manual means in foundation trenches or drains (not exceeding 1.5 m inwidth or 10 sqm on plan), including dressing of sides and ramming ofbottoms, lift upto 1.5 m, including getting out the excavated soil and disposal of surplus excavated soil as directed, within a lead of 50 m.

All kinds of soil

Filling available excavated earth (excluding rock) in trenches, plinth, sides of foundations etc. in layers not exceeding 20cm in depth, consolidating each deposited layer by ramming and watering, lead up to 50 m and lift upto 1.5 m.

Clearing the blocks in drainage PVC pipe line from man hole no: 2 to No:3 by taking out the solid sludge , replacing the damaged PVC pipes with new pipe if required , cleaning and washing with water and burying the solid sludge at required location as directed by the engineer in charge. (The cost of new PVC pipes shall be paid in pipe items)

Clearing the blocks in man hole by taking out the solid sludge , repairing the channels and walls of manhole if required , cleaning and washing with water and burying the solid sludge at required location as directed by the engineer in charge.

Providing and fixing approved readymade UPVC inspection chambers of self cleansing design of Supreme or similar reputed make with or without vent arm complete with ,including cost of cutting and making good the walls and floors : a) UPVC inspection chamber of size 300mmx300mm x300mm with suitable cover

Supplying and installing two numbers readymade soakpit rings of size 75cm outer dia,75cm height and 5cm wall thick ness and coverslab of size 75cm outer dia and 5cm thick as per the instruction of engineer in charge.The tanks should be made of precast RCC with sufficient thickness and quality to withstand the pressure from internal and external forces as per the local soil water conditions .The rate includes the cost of transportation of rings and cover slab to site ,earth work ,handling and installing at line and level and refilling after installation and nothing extra shall be paid on any account.

Repairing the wall face unplasticised Rigid PVC soil waste pipe of pressure class 4 Kg/sqcm including removing the damaged pipe and jointing using single socketed pipes for length up to 1.00 metre complete

110mm dia meter

75 mm dia meter

Providing and laying in position cement concrete of specified grade excluding the cost of centering and shuttering - All work up to plinth level :

1:1½:3 (1 Cement: 1½ coarse sand(zone-III) derived from natural sources : 3 graded stone aggregate 20 mm nominal size derived from natural sources).

Disposal of moorum/building rubbish/ malba/ similar unserviceable, dismantled or waste material by mechanical transport including loading,transporting, unloading to approved municipal dumping ground for lead upto 10km for all lifts, complete as per directions of Engineer-in-charge.

Cutting down safely and securely the following items of trees near compound wall main gate at BSNL bhavan compound at a height up to 7 metres from ground level without causing damage to the pedestrian/ vehicular traffic/ electrical installation after getting prior permission/ barring power supply from KSEB and stacking the serviceable materials at site and disposal of unserviceable materials including loading and unloading up to a distance of 5km etc complete as per the direction of engineer in charge . Necessary insurance coverage of labour shall be obtained before commencement of work. 1. Branches ot Banyan trees having diameter upto 50cm and length up to 6metre =6Nos(Six ) 2. Branches ot Badam trees having diameter upto 30cm and length up to 6metre =3Nos(Three ) 3.Branches ot Vaka tree branch having diameter upto 30 cm and length up to 6metre =2Nos(Two) 4. Mango tree branches having diameter upto 30 cm and length up to 5metre =2 Nos(One )