Additional Concrete Shielding works at Radiotherapy Dept, Lower Ground Floor, CRC, ACTREC

Amount

Appointment of reputed, Govt registered Architectural, Structural designer having more than 10 years of experienced to render interior & structural design consultancy for improvement and structural rehabilitation work as per AERB's recommendation and Interior works matching the existing design, considering the following scope of work. Study of available Structural Audit Reports of the referred bunker Study of the existing building drawings, structural system and history of repair, making site visit, issue good for construction drawings both for Structural and architectural for all kind of works involved in completion of this project complete as directed and instructed.

Preparation of existing RCC wall or brick wall surface, by scrapping, existing finish / Paint cleaning the exposed concrete surface to remove any fungus, loosely particles, scales, by a stiff wire brush, clean by water wash the entire surface, exposed the damaged concrete surface with the help of small chisel and hammer, including collecting, stacking the debris at the site, and taking out of ACTREC campus as not additional cost complete as directed and instructed.

Carefully removing or chiseling, existing plaster of thickness up to 20 mm from the damaged surface with the help of small chisel and hammer weighing not more than 5 pounds, including collecting, stacking & carting away the debris out of ACTREC wherever required as directed by site in charge.

Removing existing flooring & skirting tiles, along with backing and bedding mortar, clean the surface, lifting & shifting debris to ground floor & carting away the same out of ACTREC premises etc. complete.

Breaking & removing existing RCC wall of any thickness by mechanical cutter without disturbing the adjacent structure, or any other concrete members including cutting of reinforcement by means of chisel & hammer very carefully, proper platform to collect the debris, lowering down & carting away the debris out of ACTREC etc. complete.

Demolishing the existing brick wall along with plaster by means of chisel & hammer very carefully, proper platform to collect the debris, lowering down & carting away the debris etc. Out of ACTREC complete.

Carefully excavating in any kind of soil, in existing building in or out sides, including necessary shoring/propping if required and including carting away the debris including re-making the surface in good as same as existing as directed. Including dewatering and necessary back filling complete

Providing and fixing Temporary barricading in position Dry wall system with GI framing and fixhing 12mm thick Gypsum board and sealing joints at flooring and ceiling with temporary ply door shutter with frame before commencement of turnkey work and removing the same after completion of work etc. complete as directed and instructed.

Dismantling existing terrace water proofing including AAP membrane, cleaning the roof top free from dust and dirt with mechanical wire brush make it receive new concrete, shifing of debries from terrace to ground and carting away out of ACTREC campus complete as directed and instructed.

Providing and laying P.C.C. M15 (1:2:4) concrete in foundation as leveling course 150 mm thick including necessary form work, batching, mixing, placing, consolidating etc. complete including wet curing for specified time period.

Supplying, Providing and placing in position RMC M25 Reinforced cement concrete with 20mm downgraded aggregates for walls/foundation etc of accelerator and maze rooms of thickness ranging from different thickness at all levels including vibrating, curing, providing construction joints, leaving cut-outs/ pockets for placing of inserts/ embedment, etc., complete, including cost of providing steel form work with plywood lining for all shapes (including scaffolding, centering, etc.), but excluding the cost of providing reinforcement all as per specifications. Include precautions to control heat of hydration and obtaining a homogeneous compact concrete. All exposed concrete surface to be of form finish complete as directed and instructed.

Providing and fixing high density (7.75gm/cc) steel plate/built up sections, like angles, channels, I beams etc to the existing concrete surface using holdfast and hot press technique. Also, the footing required to carry weight of steel plate would be included as per approved design by the consultant.

Supply & fabricating and fixing reinforcement for RCC work with high yield strength ribbed cold twisted tor steel of various diameters and all lengths of grade Fe 415 / Fe 500 conforming to BIS specification including cutting, bending, fabricating, welding, wastage and placing in position according to drawings and binding the reinforcement with the use of 16 gauge galvanized binding wire of double fold and providing precast cement cover blocks for main reinforcements to ensure specified cover according to relevant IS code. The measurements will be in accordance with IS code 1200.

Supplying, Drilling/Cleaning hole and injecting Epoxy based chemical insersts. Application to be designed separately for Rebars as Simply Supported, Moment or Splice Connection as per EC2/TR023 or relevant tested and accepted rebar guidelines. rebars. Re 500 -20 mm dia 200-300mm depth (As per design and as per manufacturer's specification)

Providing and doing brick work 115/230/350 mm thick with locally available good bricks of class designation 50, in required thickness of walls, in CM 1: 4, including adding polymer admixture Emaco 141 at 500ml per bag of cement, racking the joints, cleaning, carting away the wastages and curing

Providing & Constructing Solid Cement concrete block of min M-15 grade of 75/100/150/200/250 thickness in CM 1:6 with scaffolding, Labour work at all heights and levels including wastage, scaffolding etc. complete as directed and instructed

Providing and doing pressure grouting with waterproofing compound or structural repairing compound as per manufacturers specification as directed by the Structural consultant, with insertion of pvc nozzles with drilling holes at regular intervals on exist g RCC walls, beams, roof slabs etc. complete as directed and instructed as per manufacturers specification. (considered for existing RCC walls which are developed cracks.)

Providing & applying plaster at an average thickness of 12 to 15 mm in exact line & level in the proportion of 1: 4 cement and sand mortar by manual mixing, with addition of waterproofing chemical @ 150 ml and Harbourite 12 mm fine fibrillated 100% virgin polypropylene fibers @ 150 gm per bag of cement including curing for at least 7 days, carting away a debris, cleaning (Note: Waterproof Plaster considered in Server Room only)

Providing and laying integral cement-based water proofing treatment including preparation of surface as required for treatment of roofs, balconies, terraces etc. consisting of following operations: a) Applying a slurry coat of neat cement using 2.75 kg/sqm of cement admixed with water proofing compound conforming to IS. 2645 and approved by Engineer-in-charge over the RCC slab including adjoining walls up to 300 mm height including cleaning the surface before treatment. b) Laying brick bats with mortar using broken bricks/brick bats 25 mm to 115 mm size with 50% of cement mortar 1:5 (1 cement : 5 coarse sand) admixed with water proofing compound conforming to IS : 2645 and approved by Engineer-in-charge over 20 mm thick layer of cement mortar of mix 1:5 (1 cement :5 coarse sand ) admixed with water proofing compound conforming to IS : 2645 and approved by Engineer-in-charge to required slope and treating similarly the adjoining walls up to 300 mm height including rounding of junctions of walls and slabs c) After two days of proper curing applying a second coat of cement slurry using 2.75 kg/ sqm of cement admixed jointless cement mortar of mix 1:4 (1 cement :4 coarse sand) admixed with water proofing compound conforming to IS : 2645 and approved by Engineer-in-charge including laying glass fiber cloth of approved quality in top layer of plaster and finally finishing the surface with trowel with neat cement slurry and making pattern of 300x300 mm square 3 mm deep. e) The whole terrace so finished shall be flooded with water for a minimum period of two weeks for curing and for final test. All above operations to be done in order and as directed and specified by the Engineer in- Charge: With average thickness of 120 mm and minimum thickness at khurra as 65 mm.

SURENDRA SINGH RATHORE (BID ID -3189503)

PARNAVI ENTERPRISES (BID ID -3187978)