REPAIRS TO RCC ROOF TREATMENT, PARAPET WALLS, RAIN WATER PIPES INCLUDING CUTTING DOWN VEGETATION GROWTHS IN ACCESSIBLE AND NON ACCESSIBLE ROOFS AND OTHER CONNECTED WORKS IN CERTAIN BUILDINGS OF AREA A AT NAVAL DOCKYARD VISAKHAPATNAM UNDER GE(I) DM

Amount

Demolition of textile covering over roof on flat, curved or vertical surfaces and taking down of cement plaster including removal of waste material out side from Dockyard premises complete all as specified and directed.

M&L for 25mm thick cement concrete type B-0, 1:2:4 (12.5 mm graded aggregate) as in padding of roof/ flooring complete all as specified and directed.

M&L for rendering 10mm thick plaster in cement mortar 1:3 with 3% water proofing compound as per manufacture instructions by weight of cement and finish the surface even and smooth with out using extra cement complete all as specified and directed. Note:- WPC will be measured and paid separately.

Supply only Integral water proofing compound all as specified and directed.

M&L for applying evenly a tack coat of Industrial bitumen 85/25 at the rate of 1.20 kg per Sqm including cleaning of surfaces complete all as specified and directed.

M&L for APP based polymeric membrane minimum weighing 3kg/sqm and minimum 3mm thick reinforced with polyster non wove, fabric (wt. not less than 150 gms/sqm) laid on primed surface by forced application over entire roof surface and on vertical surface up to groves with other laps of 100mm. The over lap shall be sealed by flames complete all as specified and directed.

M&L for applying two coats of bitumenous alumium paint @0.10 Kg/sqm including preparation of surfaces complete all as specified and directed.

Demolition of brick work or stone / boulder masonry built in cement mortar including removal of debries outside of Dockyard premises complete all as specified and directed.

M&L for pre cast cement concrete type 1:3:6 type C-1 (20mm graded stone aggregate) block masonry with solid blocks exc 10 cm in width and setting in cement mortar 1:4 complete all as specified and directed.

Taking down cement plaster on brick/concrete surfaces etc including racking out joints hacking, for key, scrubbing down with water etc,complete all as specified and directed.

M&L for rendering 15 mm thick plaster in CM (1:4) on fair faces of brick or concrete surfaces of walls finished even and smooth without using extra cement all as specified and directed.

M&L for rendering 10 mm thick cement plaster (1:3) on fair faces of brick work or concrete surfaces finished even and smooth (without using extra cement) complete all as specified and directed.

M&L for preparation of new plastered surfaces of walls and applying two coat of exterior weather proof emulsion over a coat of primer complete all as specified and directed.

M&L for preparation of new plastered surfaces of wall and applying two coats of white wash complete all as specified and directed.

M&L for taking out deteriorated/ leaking valley gutters of any shape, size and material from the work shop buildings of any height including disconnecting the funnels from gutters and rain water pipe, in position and replacing existing with new Galvalume plain sheet of 0.80 mm to 1.00 mm thick made to shape and size required (width of sheet required is 800mm to 1200mm) with 200mm over laps with double washer self driving screws at joint using leak proof (Tar roof compound or similar material) jointing material and fixed in position complete all as specified and directed.

M&L MS flat iron clamps made to any shape with flat iron of 40mm wide and 6mm thick (Length of FI required for each clamp 1.00m to 1.50 m to support the valley gutter , rain water pipes etc, including two coats of synthetic enamal paint over zinc chrome primer complete all as specified and directed.

M&L for taking out deteriorated / unserviceable funnels of valley gutters of any shape, size and material from the work shop buildings at height of 6m to 20 m including disconnecting the funnels from gutters & Rain water pipe, in position and replacing with new funnel made out of Galvalume plain sheet of 0.50 mm to 0.60 mm thick to required shape and size to match with the existing funnels required with extra collar of 50mm over the actual outer diameter of rain water pipe and inserting into the rain water pipe with double washer self driving screws using leak proof jointing material (Tar roof compound) or similar material and fixed in position complete all as specified and directed.

Cleaning of roof/ valley gutter not exceeding 600 mm wide in high rise workshop buildings of any height including cleaning of RWP holes spouts and arresting the leakage by the side pipe by chipping off old concrete and applying concrete/cement mortar using with WPC, including removing of plant/Vegetation growths complete all as specified and directed. Note :- Necessary Bends, PVC pipe etc will measured and paid separately

M&L for hacking old broken glass of any thickness, size, quality and description and fixing new rough cast wired glass, 6.4mm thickness and glazing with adhesive on vertical shop wall cladding glazing exceeding 0.25 Sqm and not exceeding 2.0 Sqm in each panel of the work shop buildings at any height of 6m to 20 m fixed in position complete all as specified and directed.

Dismantling Galvalume aluminium zinc coating ( corrugated or semi corrugated ) sheets, in roof covering complete all as specified and directed.

S&F pre painted galvalume aluminium zinc coating GI based corrugated/ semi corrugated, tripizoidal or any profilesteel sheet 0.50mm thick of an labour having tensile strength of 550 MPA as in roof covering/cladding to wall fixed with self traping screw complete all specified and directed.

S&F pre painted galvalume aluminium zinc coating GI based plain sheet 0.50mm thick of an labour having tensile strength of 550 MPA as in roof covering/cladding to wall fixed with self traping screw omplete all as specified and directed.

Dismantling mild steel work of any description complete all as specified and directed,

S&F Mild steel work as in Hand rails, half round or other stock section or core for wooden hand-rail straight portion, drilled and countersunk for balusters running bars, for door,s balusters, nosing to steps including embedingin concrete and screwing etc, wind ties for roof including securing bolts; posts and struts in fencing including cutting tops to shape as directed, drilling holes, notching for wire, etc; flat iron fillets (fro securing wire mesh etc) including all necessary drilling, bolting or riveting, etc and similar work confroming to Fe-290 Gde E-165 complete all as specified and directed.

Taking down rain water or soil pipes or PVC pipes including all fittings any size and pattern complete all as specified and directed.

S&F 75 mm bore PVC (SWR) waste and rain water pipes single socketed in any length with rubber ring joints laid in floors or trenches or fixed to walls etc complete all as specified and directed,

S&F 110mm bore PVC (SWR) waste and rain water pipes single socketed in any length with rubber ring joints laid in floors or trenches etc complete all as specified and directed.

S&F and fix 150mm bore PVC (SWR) waste and rain water pipes single socketed in any length with rubber ring joints laid in floors or trenches etc complete all as specified and directed.

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

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

S&F 150mm bore PVC (SWR) bends of any radius complete all as specified and directed.

N V S S K N SIVA PRASAD (BID ID -3176156)

sai ganesh enterprises (BID ID -3175984)

UNITY PROJEKTZ (BID ID -3175861)

GVR ENGINEERS AND INFRA (BID ID -3176152)

venkata sai constructions (BID ID -3176230)

SINGH BUILDERS (BID ID -3176430)