Rehabilitation Works to RCC Surfaces (Beams, Slabs, Walls) of Building Dock Pump House and Repairs to Control Room

Amount

Section A :- Pump House

Chip Unsound / Weak concrete material from slabs, beams, of thickness varies from 25 mm to 200 mm., with standard power driven percusision type or pneumatic chiesel of standard make as directed by engineer incharge including tapering all edges, making suare shoulders of cavities etc., complete and disposal of debris up to a lead of 50 mts and all lifts and all as specified and directed by Engineer.

Provide and fix water leak proof centering and shuttering to beams, deck slabs, chajjas, concerete walls etc., including application of approved form release coating, strutting, bracing, propping, etc., keeping the same in position during concreting and removal of the same in position during concreting specified period etc for straight / inclined shuttering, keeping necessary provision for inserts, projecting dowels and necessary scafolding and all as specified and directed by Engineer

Clean the Rust, over and behind a reinforcement bars by manual methods hammering the rebar, using wire brush, chesieling to form a totally rust free finishing surface through out the Length of bars Complete all as directed.

Drilling of holes of dia 16 mm to 20 mm by using Electrically operated machine or any other equipment in existing plain or reinforced cement concrete up to a depth of 150 mm to 200 mm, fixing the reinforcement in position by grouting "Lock Fix" of Fosroc make or Equivalent including cost of labour, tools & plant, and necessary scafolding but excluding cost of reinforcement bars which will be measured under item No:5 complete all as directed.

Supplying and fixing of Fe 415 grade HSD bar reinforcement in position including the cost of steel, transporting the same to the site of work, straightning, cleaning, cutting, bending, to the required shapes and lengths as directed by the Engineer-incharge, bindidng with 16 SWG black soft annealed bindidng wire or welding wherever required at every intersection, supplying and placing with proper cover blocks, supports, chairs, over laps etc., for all heights and depths and necessary scafolding and all as specified and directed by Engineer

Drilling of 16mm dia 150mm deep holes in concrete embedding and including fixing of 12mm dia 300mm long MS bars as shear keys to firmely secure the new rebars and grouting with lock fix chemical of fosroc as per manufactures specifications and necessary scafolding and all as specified and directed by Engineer

Supply and apply the NitoZinc primer of Fosrock make to the existing prepared surface of reinforcing bars to protect from corrosion complete all as directed.

Supply and apply of Nitto bond EP chemical of fosroc make to the existing concrete surface for bonding after cleaning and brushing of surface complete all as directed by the engineer.

Core cutting through slabs, walls etc to facilitate the placement / pumping of Micro concreting including all mechanical equipment, core cutters, drill bits, without causing any damage to the existing members engineer in charge including working platforms.

Provide and place in position Micro Concrete (M-40) which shall be cement based prepacked component such as Rendrock-RG of Fosrock make or equivalent mixed with 6 mm size coarse aggregate in specified percentage by weight subjecting to the maximum of 50% as directed by the engineer incharge including mixing with siutable and approved mixing machine, pumping of concrete under pressure where ever required to ensure that the concrete laid for encasement is dense, properly compacted, free from honey combs, and necessary scofolding as directed by the Engineer in charge.

Supply and application of concrete curing compound to the finished concrete surface immediately after stripping the form work with CONCURE-WS of Fosrock or its equivalent approved by Engineer in Charge as per the manufacurers recommendations and as directed including necessary scafolding.

Provide and building up of isolated damaged portions up to 25 mm average thick in beams, walls, of building dock pump house etc., using polymer modified cementations mortar with cement sand ratio 1:3 using Nito bond SBR/ approved equivalent at the rate of 7lts/ bag of cement to an average thickness of 20mm over the primed surface using Nito bond SBR in 1:1:3 by volume (Nitobond SBR :water: cement). Repair mortar has to be applied before priming coat dries, (if the bonding compound dried it should be re- coated) and cutting the repair mortar after competion of repair work with Nito bond AR (1 part of water by volume) as a curing membarance at a coverage of 8-10 Sq.m / lit cost including scaffolding wherever necessary and all as specified and directed by Engineer

Application of Solvent Based Aliphatic acrylate anti carbonate protective coating on the finished concrete surface with approved products / Brands &Shades like FOSROC / Sika/ Berger or any other approved eqalitient brands including one Coat of surface primier complete all as directed by the engineer.

Disposal of debris generated form chipping of concreting beyond the initial lead of 50m , all lifts and any unwanted material etc., disposal off the same from HSL to the private dumping yard up to 20km lead (not to dump in HSL colony dumping area & surronding areas) it is the responsibility of the firm to ensure no objection shall be raised by muncipal authorties /from any body .If any dispute arises the agency has to sort out at their own risk.complete all as directed.

Supply, fabricate and fixing in position MS structural steel such as, plates, angles, pipes as in handrails & stair cases etc including hot dip galavanising 100 microns etc., all as directed & specified by engineer

52 mm thick cement concrete flooring with concrete hardener topping, under layer 40 mm thick cement concrete 1:2:4 (1 cement : 2 coarse sand : 4 graded stone aggregate 20 mm nominal size) and top layer 12 mm thick cement hardener consisting of mix 1:2 (1 cement hardener mix : 2 graded stone aggregate 6 mm nominal size) by volume, hardening compound mixed @ 2 litre per 50 kg of cement or as per manufacturer's specifications. This includes cost of cement slurry, but excluding the cost of nosing of steps etc. complete

Section B :- CONTROL ROOM

Providing and laying water proofing treatment consisting of: (i) Removal of existing damaged top layer and disposing the same away from HSL premises including thorough cleaning of the existing RCC roof slab surface and repairing of all surface cracks wider than 3mm with polymer modified mortar prepared with Sikatop 77 acrylic polymer. (ii) Providing and laying cement plaster in CM 1:6 duly admixed with Sika Plastocrete Super @ 0.2% by weight of cement, over a bond coat of Sika Latex Cement Slurry to make the surface smooth and even (iii) Application of priming coat of compatible bituminous primer Sika WP Shield Primer W @ 0.300 kg per sqm over the cleaned and prepared roof surface complete as per satisfaction of the Engineer-in-Charge. (iv) Providing and laying Sika Atactic Polypropylene Polymer (APP) modified five layer prefabricated waterproofing membrane with thermal fusible properties on both side and having minimum thickness of 3.0mm and unit weight not less than 4.0 kg/sqm reinforced with non woven spun bonded polyester reinforcement @ 160 gm / sqm, <-50C cold flexibility. The layer of the membrane shall be laid using butane torch and sealing all joints properly, leaving no bare edge or end of APP membrane and finishing the surface with trowel or otherwise to obtain a uniform surface. The minimum side lap and end lap shall be kept at 75mm and 100 mm respectively. The membrane shall be laid over a coat of bituminous primer @ 0.300 kg./ltr per sqm made by the same membrane manufacture after necessary surface preparatory works such as cleaning the surface thoroughly, shaping mouths of outlets including cutting grooves (50mm x 50mm) in parapet and inserting edge of membrane and mending good damages by sand cement mortar (1:4) and shall be finished in all respect as per direction of Engineer-in-Charge. (v) provide & apply two coats of aluminium paint over the surface etc., complete

Supply of 110 mm dia UPVC(SWR) rain water downtake pipes conforming to IS : 13592 Type A, jointing with seal ring conforming to IS : 5382, including fixing of clamps, bends, shoes (supreme/ prince make) and removing of old pipe line and handover to disposal section etc., complete

Removal of existing MS doors and MS windows of area 3 sq. metres and below and handed over the material to scrap yard and dispose the unserviceable material out side the HSL premises etc., complete

Providing and fixing MS steel doors, windows and ventilators, side /top /centre hung, with beading and all members etc. complete of standard rolled steel sections, joints mitred and flash Butt welded and sash bars tenoned and riveted, including providing and fixing of hinges, pivots, including priming coat of approved steel primer, including Fixing with 15x3 mm lugs 10 cm long embedded in cement concrete block 15x10x10 cm of C.C. 1:3:6 (1 Cement : 3 coarse sand : 6 graded stone aggregate 20 mm nominal size) but excluding the cost of other fittings, complete all as per approved design, (sectional weight of only steel members shall be measured for payment)

Providig two coats of epoxy paint (for steel work like trench covers/doors/windows) over a coat of zinc rich primer of approved brand Asian / Berger / Shalimar / Nerolac including scrapping of old surface where ever required & specified by Engineer etc., complete

Injecting epoxy based, non shrink resin grout by pressure grouting in to the cracks including all materials and labour etc., complete

Repairing the masonry wall cracks by adopting stitching technique with RCC planks across the cracked line and grouting with epoxy bond polymers mixed with cement mortar in to crack etc., complete all as directed.

Providing Two(2) coats of white washing with suryacem / Hitech gold to ceiling surfaces after through scrapping, sand papering and cleaning the surface to give even shade etc., complete all as directed.

Chipping and removal of old damaged plaster and cleaning the surface including disposal of unserviceable material within 50 metres lead as per direction of Engineer-in-charge.

Providing 15 mm thick plaster with CM (1:4) to walls at all heights and ceilings, beams, Stair-case, lintel soffits, chajjas, projections, narrow bands and widths etc., including cost of all materials, tools, plant and labour, scaffolding arrangements and curing all as per specifications and directions of the engineer.

Dismantling of existing damaged RCC members like sunshades and where ever specified etc including cutting of reinforcement bars by manually / mechanically including stacking of serviceable material and hand over to disposal section and dispose the serviceable materials within a lead of 50 mts etc., complete

Providing and laying reinforced cement concrete work in nominal mix of 1:1.5:3 (1 cement : 1.5 coarse sand (zone-III): 3 graded stone aggregate 20 mm nominal size), excluding the cost of centering, shuttering, finishing and reinforcement and including all materials & men etc., complete

Apply two coats of premium quality arcylic Interior emulsion paint over a one coat of primer, reqired shade to wall surfaces from approved brands Asian paints (Royal shine), Berger (silky luxury) where ever specified by Engineer including necessary scaffolding etc., complete

Apply two coats of premium quality weather proofing arcylic Exterior emulsion paint over a one coat of primer, reqired shade to wall surfaces from approved brands Asian paints (apex ultima), Berger (All guard) where ever specified by Engineer after through scrapping & cleaning of old surface including necessary scaffolding etc., complete

VIJAYALAKSHMI CONSTRUCTIONS

THREE STAR CONCRETE TECHNOLOGIES