Repairing of the roof and allied works of the Water Works Store and P.M.R.I. Section at DPL Water Works.

Amount

250 mm thick Brick work with Fly Ash Bricks (250 mm x 125 mm x 75 mm) as per IS 12894:2002 in cement mortar (1:4) a) In superstructure, ground floor.

Dismantling all types of masonry excepting cement concrete plain or reinforced, stacking serviceable materials at site and removing rubbish as directed within a lead of 75 m. In ground floor including roof.

Dismantling carefully terraced floor only (including floor finish if any) or lime terracing in ground floor roof and removing rubbish as directed within a lead of 75 m.

Removal of rubbish, earth etc. from the working site and disposal of the same beyond the compound, in conformity with the Municipal / Corporation Rules for such disposal, loading into truck and cleaning the site in all respect as per direction of Engineer in charge.

20mm thick plaster 4:1 Plaster (to wall, floor, ceiling etc.) with sand and cement mortar including rounding off or chamfering corners as directed and raking out joints including throating, nosing and drip course, scaffolding/staging where necessary.[Excluding cost of chipping over concrete surface]. In ground floor.

Stripping off worn out plaster and raking out joints of walls, ceilings etc. up to any height and in any floor including removing rubbish within a lead of 75m as directed.

Ordinary Cement concrete (mix 1:1.5:3) with graded stone chips (20 mm nominal size) excluding shuttering and reinforcement if any, in ground floor as per relevant IS codes. Pakur Variety.

Extra rate for using water proofing and plasticising admixture @ 0.2% by weight of cement (or at manufacturer's specified rate) for concrete of various grades.

Applying 2 coats of bonding agent with synthetic multi-functional rubber emulsion having adhesive and water proofing properties by mixing with water in proportion (1 bonding agent : 4 water : 6 cement) as per Manufacturer's specification.

Neat cement punning about 1.5mm thick in wall, dado, window sill, floor etc. NOTE: Cement 0.152 cu.m per100 sq.m.

Supplying & laying 3mm thick pre-fabricated plastomeric water proofing membrane conforming to EN 12311-1 & ASTMD 5147, manufactured with atactic poly propylene (APP) modified premium grade asphalt , specially reinforced with non-woven polyester core with polyester reinforcement @160 gms per sqm & both faces covered with thermo-fusible polyethylene film /Mineral on top face over a coat of primer @ 0.40 lit/sqm of manufacturer's specification on smooth, clean dry surface prepared wherever required. Lap joint shall be provided of 75 mm in longitudinal & 100 mm in transverse direction and fused using LPG/ Propane torch employing extra care ensuring full bondage, complete removal of entrapped air and sealing edges into grooves in appropriate manner as per direction of Engineer -in-charge all complete including materials, labour and applicable taxes. (Payment shall be made on the basis of finished surface area.).Membrane Property: Softening Point > 150 deg C, Cold Flexibility < -6 deg C, Tensile Strength, N/cm : 600 (longitudinal), 450 (transverse), Tearing Strength, N: 300 (longitudinal), 200 (transverse).

Uprooting and removing plants from the surface of walls parapet etc. and making good damages. Repairing of damages to be paid separately.

Making one set of scaffolding only for replacing glass panels, painting, uprooting plant and another repairing works of building and S&P works for external works only with 10 cm. dia. bamboo as main posts at the rate of 1 meter center to center and 7.5 cm. dia. bamboo ties @ 0.75 meter apart fitting and fixing with necessary coir, nails etc. as per direction of the Engineer-in charge. (This item should be executed only after prior approval of the Engineer-in charge). Firstly, one number to be paid and then labour rate for shifting up to further nineteenth (19) times @ 10% each time to be considered. If necessary further after twenty times of total use, another one number new and labour rate for shifting to be considered accordingly.

i) a) 3.90 meter height

b) Extra for additional 3.6 height or part thereof

ii) Labour rate for shifting

a) 3.90 meter height

b) Extra for additional 3.6 height or part thereof

A) Supply of UPVC pipes (B Type) & fittings conforming to IS-13592-1992 (i) Single Socketed 3 Meter Length (a) 110 mm

B) Labour for fitting and fixing U.P.V.C. pipes for above ground work including cost of jointing materials etc. fitting and fixing all necessary specials, cutting pipes, cutting holes in walls or R.C. floor where necessary and mending good all damages excluding the cost of masonry or concrete work, if necessary, but including the cost and fitting and fixing holder bat clamps (any floor) or for underground work including cutting trenches up to 1.5 meter and refilling the same complete as per direction of the Engineer-in-charge. (Payment will be made on center line measurement of the total pipeline including specials.

(A) Above ground (i) 110 mm dia.

Supply of UPVC pipes (B Type) & fittings conforming to IS-13592-1992.

(i) Door Tee 110mm

(ii) Bend 87.5º; 110 mm

(iii) Vent Cowl 110 mm

S.B.ENTERPRISE (BID ID -6943052)

SABITA ENTERPRISE (BID ID -6938774)