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 C, D, E AND DAS OF NAVAL DOCKYARD VISAKHAPATNAM UND

Amount

Demolition of textile covering over roof, and taking down of existing padding of 25mm thick including removal of waste material out side of Dockyard premises complete all as specified and as directed

M&L water proofing treatment on cleaned RCC roof comprising with the following operation and as specified here-in-below :- (a) 20 mm thick (av. mimimum thickness) plastering in cement mortar 1:3 mixed with WPC @ 3% by weight of cement finishing the plastered surfaces even and smooth over cleaned RCC roof. The plastered surface shall be cured properly for ten days by ponding of water over roof. (b) Applying bitumen primer over the plastered surface @ 0.40 Ltr / Sqm by the same membrane manufacturer of density at 25°C, 0.87 to 0.89 kg / Liter and viscosity 70-160 cps. (c) Providing and laying 3mm thick APP (Atactic Polypropylene Polymer) modified prefabricated five layer, weight not less than 3.6 kg/Sqm water proofing membrane, black finished reinforced with non woven polyester matt make as approved over the primer coat. Membrane shall be laid using butane torch and sealing all joints etc all as per Para 11.44.5 of SSR Part I. (d) Applying one coat of Aluminium paint @ 0.1 ltr per Sqm over APP based polymetric membrane complete all as per manufacturer's instruction.

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 as directed

M&L for brick work with subclass ‘B’ bricks, built in cement mortar 1:4 straight or curved on plan exc 6m mean radius using old size bricks complete all as specified and as directed

Taking down cement plaster on brick/concrete surfaces etc including racking out joints hacking for key scrubbing down with water etc including throwing debries outside of ND (V) complete all as specified and as directed

M&L for rendering 10 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, complete all as specified and as directed

Demolition of PCC of any description and any position not otherwise specified and removing the debries outside from the Dockyard premises complete all as specified and as directed

M&L for PCC 1:2:4 type B1, using 20 mm graded aggregate as in floor 50mm thick and finishing the concrete even and smooth without using extra cement complete all as specified and as directed

M&L for rendering 15 mm thick plaster in CM (1:4) using SBR latex emulsion @ 3% by weight of cement all as specified on fair face of brick or concrete surfaces of walls finished even and smooth without using extra cement complete all as specified and as directed [Note:- ( 1) Make of SBR emulsion M/s FOSROC / M/S Sika India Pvt. Ltd. / M / S Choksey Chemicals Pvt. Ltd. / M/S Mapei Const Product India Pvt Ltd. / M/S THermax Ltd / M/S STP / M/S Dr Sunanada / M/S BASFor any other approved manufacturer of E-in-C's branch. 2) Cost of SBR Latex is included in the quoted rate)]

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 as directed

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

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

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

S&F 160mm bore PVC (SWR) waste and rain water pipes single socketed in any length with rubber ring joints laid in walls/floors or trenches etc complete all as specified and as directed

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

M&L for 160mm /180mm bore PVC bends of such as elbow, tee, reducer socket and similar fittings in repairs provided to rain water pipes of the work shop buildings at height of 6m to 20 m fixed in position by leak proof jointing material / chemical etc. complete all as specified and as directed

M&L for 110mm bore PVC bends of such as elbow, tee, reducer socket and similar fittings in repairs provided to rain water pipes of the work shop buildings at height of 6m to 20 m fixed in position by leak proof jointing material / chemical etc., complete all as specified and as directed

Dismantling of any description ( corrugated or semi corrugated ) sheets, in roof covering including throwing debries outside of ND (V) complete all as specified and as directed

S&F pre painted galvalume aluminium zinc coating GI based corrugated steel sheet 0.50mm thick(straight or curved shape) of any colour having tensile strength of 550 MPA as in roof covering/cladding to wall fixed with self traping screw complete all as specified and as directed

S&F pre painted galvalume aluminium zinc coating GI based plain steel sheet 0.50mm thick(straight or curved shape) of any colour having tensile strength of 550 MPA as in roof covering/cladding to wall fixed with self traping screw complete all as specified and as directed

S&F pre painted galvalume aluminium zinc coating GI based corrugated steel sheet 2mm thick(straight or curved shape) of any colour having tensile strength of 550 MPA as in roof covering/cladding to wall fixed with self traping screw complete all as specified and as directed

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

S&F steel work in tubular trussess including special shape washer etc.complete using ERW or induction butt welded tubes conforming to IS 1161-1979 graded St. 240 complete all as specified and as directed

M&L for steel work in roof trusses (framed), trussed, purlins, crane gantries, rails and fastenings and heavy bracket framing (Beam, tee, angle, channel or flat section) for grade Fe-290 (Gde E-165) including distance pieces, cleats etc complete all as specified and as 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 doors balusters, nosing to steps including embedding 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 (for 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 as directed Note:- MS flat iron clamps shall be measured and paid separately as supply only

M&L for taking out deteriorated/damaged 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 Galvalume plain sheet of 1.00mm 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 specified and as directed

M&L for taking out deteriorated /damaged 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 0.60mm 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 in to the rain water pipe with 150mm length in to 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 as directed Note:- MS flat iron clamps shall be measured and paid separately as supply only

Supply only MS flat iron clamps made to any shape with flat iron of 40mm wide and 6m thick (Length of FI required for each clampis 1.00m to 1.50 m ) to support the valley gutter , rain water pipes etc, complete all as specified and as directed

M&L for hacking out 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 0.25Sqm and not exceeding 2.0 Sqm in each panel of the work shop buildings at height of 6m to 20 m fixed in position complete all as specified and as directed

Material and labour for preparation of new or previously untreated steel and iron surfaces of any description over 10cm width or girth, and applying two coats of synthetic enamel paint over a coat of zinc chromate primer complete all specified and as directed .

M&L for Cleaning of roof/ valley gutter not exceeding 600 mm wide in high rise workshop buildings up 20 mtr 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 specified and as directed

General Note : The above items are to be executed for multi storied building of five floors height / work shop buildings of similar height and requires double scaffolding to carry out the mechanically applied repair mortars etc . The rates quoted shall be accordingly considered for all the safety measure, scaffolding, height, lead and lift in the items.

SRI SIMHADRI COMPANY