Dismantling of damaged bottom slabs, drop chajjas and repairs to the structure and aligning the PVC drain lines in the shafts with proper slope at Bhaskara Building Colonnade area, TIFR Colaba colony, Mumbai-05

PART- A CIVIL WORKS

Demolishing R.C.C. work manually/ by mechanical means including stacking of steel bars and disposal of unserviceable material within 50 meters lead as per direction of Engineer - in- charge. NOTE-Please refer details scope of work under the clause special terms and conditions of the contract

Dismantling cement asbestos or other hard board ceiling or partition walls including stacking of serviceable materials and disposal of unserviceable materials within 50 meters lead.

Dismantling steel work in built up sections in angles, tees, flats and channels including all gusset plates, bolts, nuts, cutting rivets, welding etc. including dismembering and stacking within 50 meters lead.

Dismantling doors, windows and clerestory windows (steel or wood) shutter including chowkhats, architrave, holdfasts etc. complete and stacking within 50 meters lead Of area 3 sq. meters and below

Providing and fixing double scaffolding system (cup lock type) on the exterior side, up to seven story height made with 40 mm dia M.S. tube 1.5 m center to center, horizontal & vertical tubes joining with cup & lock system with M.S. tubes, M.S. tube challis, M.S.clamps and M.S. staircase system in the scaffolding for working platform etc. and maintaining it in a serviceable condition for the required duration as approved and removing it there after .The scaffolding system shall be stiffened with bracings, runners, connection with the building etc wherever required for inspection of work at required locations with essential safety features for the workmen etc. complete as per directions and approval of Engineer in-charge .The elevational area of the scaffolding shall be measured for payment purpose .The payment will be made once irrespective of duration of scaffolding

Providing and fixing 3.50 to 3.60 meter height Vertical position telescopic suitable M.S. prop under the deflected beam/lintel/slab/chajjas by using teak wood battens of suitable size for packing between prop plate and the beam/lintel/slab/chajjas bottom surface. Also tied with M.S.tube transom, including Providing & Fixing safety Net of 3 layer Horizontal, with 1st layer 4mm knotted square mesh ,2nd layer 2.5mm braided green Colour 75mm x 75mm mesh net and 3rd layer Monofilament agro shade net Border rope 12mm as per the directions of Engineer in-charge. Note: Measurement for payment will be done on basis of supporting Horizontal area.

Structural steel work riveted, bolted or welded in built up sections, trusses and framed work, including cutting, hoisting, fixing in position and applying a priming coat of approved steel primer all complete.

Providing and fixing High-performance wedge Anchor fastener Carbon steel -zinc-plated Externally threaded, Pre-fastening , Through-fastening HST3 M10 x 90 mm length of HILTI or equivalent make. Including drilling of hole in frame , concrete/ masonry, etc. as per direction of Engineer-in-charge and making arrangement for fixing of Stainless steel flexible wire rope to the Building Vertical and Horizontal drainage PVC pipes support system.

Painting with synthetic enamel paint of approved brand and manufacture to give an even shade Two or more coats on new work

Providing and fixing 03 mm Flexible Stainless steel -304 grade Wire rope with Clip Clamp for fixing wire rope to MS Angle for Building Vertical and Horizontal drainage PVC pipes support system. Job includes drilling holes in to the MS Angel and tightening with clip clamp, aligning pipes in proper slopes as directed by Engineer in-charge.

Structural repair to the old damaged concrete structures with approved Make polymer ( Sunanda construction chemicals/Krishna con-chem. / FOSROC or equivalent) with following operations or as per manufacturers specifications. 1) Removal of loose / spelled or damaged concrete by chipping and cleaning the concrete surface and reinforcement steel with wire brush and with water jet. 2) Cleaning the steel bars with approved rust remover and washing with water jet to make the surface free from Acid content. 3) Applying protective coat / bond coat using approved rust passivator. 4) Re-baring reinforcement with additional bars where area of steel bar found reduced less than 50% and applying approved polymer and cement in the specified proportion as per specification of manufacturers procedure . 5) Providing and applying polymer modified cement mortar as per manufactures specification in thickness 15-20 mm at a time. Including applying cement & polymer bonding layer to old concrete surface area before applying polymer modified mortar. Applying polymer & cement bond coat and further polymer modified mortar above the thickness of 20 mm up to 50 mm thickness wherever is necessary as per manufacturers specifications. Please Note: 1) Mortar must be used after machine mixing only

Repairs to plaster of thickness 12 mm to 20 mm in patches of area 2.5 sq. meters and under, including cutting the patch in proper shape, raking out joints and preparing and plastering the surface of the walls complete, including disposal of rubbish to the dumping ground, all complete as per direction of Engineer-in-Charge. With cement mortar 1:4 (1 cement : 4 fine sand)

Centering and shuttering including strutting, propping etc. and removal of form of Suspended floors or Copings, roofs, landings, balconies and access platform Suspended floors or Copings, roofs, landings, balconies and access platform

Strengthening of RCC structure members with free flow SFMC(Super fine Micro concrete) manufactured by Sunanda chemicals/ Roffe/ Fosroc or equivalent approved make including mixing with concrete mixer, pouring concrete at site and applying old to new concrete binder application as per manufacturer specifications, curing and adding stone aggregate below 10 mm size if required as per manufacturer specifications etc all complete and as directed by the Engineer-in-charge. Using 100% SFMC Please Note: Mortar must be used after machine mixing only.

Finishing walls with textured exterior paint of required shade: New work (Two or more coats applied @ 3.28 ltr/10 sqm) over and including priming coat of exterior primer applied @ 2.20kg/10 sqm Note: Job includes removing damaged existing textured patches in proper shape and applying primer and finishing the same as per existing textured pattern & finish etc all inclusive as directed.

Finishing walls with 100% Premium acrylic emulsion paint having VOC less than 50 gm/liter and UV resistance as per IS 15489:2004, Alkali & fungal resistance, dirt resistance exterior paint of required shade (Company Depot Tinted) with silicon additives. New work (Two or more coats applied @ 1.43 liter/10 sqm. Over and including priming coat of exterior primer applied @ 0.90 liter/10 sqm. On existing sponge plaster or Sand faced plaster finish surface.

PART 'B" Any unforeseen item not covered above, executed from CPWD Delhi Schedule of Rates 2018 upto a base value of Rs. 1,00,000/- Hint: Bidder is supposed to quote rate for this item in column (green) at value which is at a certain percentage above or below the rate of DSR 2018. For e.g. if the estimated rate is Rs. 1,00,000/- then bidder should quote rate of Rs. 1,10,000/- in case he intends item in this part to be paid at the rate of 10% above DSR 2018 or Rs. 90,000/- in case he intends item in this part to be paid 10% below the DSR 2018 The value given in the rate for this item shall be used to derive the rate to be paid for the item from DSR 2018

DEEPAK ENTERPRISES