Rehabilitation and Re-Strengthening of Building No. P-01 (Main Building Of 05 Storey) at HQ DGBR Complex (Seema Sadak Bhawan), Ring Road, Delhi Cantt, New Delhi under 1353 GE/21 BRTF Under Project Shivalik

Amount

Excavating in trenches, n exc 1.5m wide and n exc 1.5m in depth; for foundation, etc. or for shafts, wells, cesspits, manholes, pier holes, etc. n exc 10 sq m on plan and n exc 1.5m in depth and getting out

Removing excavated material n exc. 50m and depositing where directed at a level n exc. 1.5m above the starting point

Returning, filling in, including spreading, levelling, watering and well ramming in layers not exc 25 cm

Providing and fixing double scaffolding system (cup lock type) on the exterior side of building/structure, up to 15 meter height, above ground level, including additional rows of scaffolding in stepped manner as per requirement of site, made with 40mm dia M.S. tube, placed 1.5 meter centre to centre, horizontal & vertical tubes joint with cup & lock system with M.S. Tubes, M.S. tube challis, M.S. clamps and staircase system in the scaffolding for working platform etc. and maintaining it in a serviceable condition for execution of work of cleaning and/ or pointing and/ or applying chemical and removing it thereafter. The scaffolding system shall be stiffened with bracings, runners, connecting with the building etc, wherever required, if feasible, 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. Note:-(1) The elevation area of the scaffolding shall be measured for payment purpose. (2) The payment will be made once only for execution of all items for such works.

Providing, erecting, maintaining and removing temporary protective screens made out of specified fabric (Woven PVC Cloth) with all necessary fixing arrangement to ensure that it remains in position for the work duration as required by the Engineer-in-charge.

Propping and Supporting the structural members and its adjoiningareas with steel props (adjustable as required), bracings, steel timber runners etc. to relieve the structural member of the required load coming over it as per the pattern given by consultant and approved by Engineer-in-charge complete.

Taking down cement or cement lime plaster on brick or stone walls, etc. including raking out joints, hacking for key, scrubbing down with water, etc.

Dismantling of Concrete of any description and in any position not otherwise specifically provided for

Dismantling of Roofs, floors (other than ground floors), beams, staircases, landing, chajjas and similar suspended work

Extra for cutting reinforcement bars manually/ by mechanical means in R.C.C. or R.B. work (Payment shall be made on the cross-sectional area of R.C.C. or R.B. Work) as per direction of Engineer in-charge.

Disposal of building rubbish / malba / similar unserviceable, dismantled waste materials by mechanical means, including loading, transporting, unloading to approved municipal dumping ground or as approved by Engineer-in-charge, beyond 50 m initial lead, for all leads including all lift involved.

Chipping of unsound/weak concrete material 50mm average thickness from slabs, beams, columns etc. with manual Chisel and/ or by standard power driven percussion type or of approved make including tapering of all edges, making square shoulders of cavities including cleaning the exposed concrete surface and reinforcement with wire brushes etc. and disposal of debris for all lead and lifts all complete as per direction of Engineer-In-Charge.

Cleaning of exposed concrete surface of sticking material including loose and foreign material by sand blasting with coarse sand followed by and including cleaning with oil free air blast as per direction of Engineer in charge.

Cleaning of exposed concrete surface of sticking material including loose and foreign material by sand blasting with coarse sand followed by and including cleaning with oil free air blast as per direction of Engineer in charge.

-do- Bars above 12 mm diameter

Providing and inserting 12mm dia galvanised steel injection nipple in honey comb area and along crack line including drilling of holes of required diameter (20mm to 30mm) up to depth from 30mm to 80mm at required spacing and making the hole & crack dust free by blowing compressed air, sealing the distance between injection nipple with adhesive chemical of approved make and allow it to cure complete as per direction of Engineer-

Providing and injecting approved grout in proportion recommended by the manufacturer into cracks/honey-comb area of concrete/ masonry by suitable gun/pump at required pressure including cutting of nipples after curing etc. complete as per directions of Engineer in-Charge (The payment shall be made on the basis of actual weight of approved grout injected). Stirrer mixed Acrylic Polymer of approved make @ 2% of weight of cement used) modified Cement slurry made with non shrink compound in concrete/RCC work.

Epoxy injection grout in concrete/RCC work of approved make

Providing, mixing and applying bonding coat of approved adhesive on chipped portion of RCC as per specifications and direction of Engineer-In-charge complete in all respect. Epoxy bonding adhesive having coverage 2.20 sqm/kg of approved make

Drilling suitable holes in reinforced or plain cement concrete with power driven drill machine to a minimum depth of 100mm upto 200mm in RCC beams, lintels, columns and slabs to introduce steel bars for sunshades/balconies including fixing the steel bars in position using epoxy resin anchor grout of approved make but excluding the cost of reinforcement, all complete as per direction of Engineer-In-Charge.(Upto and including 12 mm dia)

Mild steel bars 10mm dia and over, cut to length, bent to shape required, including cranking, bending spirally for hooping for columns, hooking ends and binding with and including mild steel wire (annealed) not less than 0.9mm dia or securing with clips(Thermo-Mechanically Treated bars i.e TMT Bars)

Providing, mixing and applying SBR polymer (of approved make) modified Cement mortar in proportion of 1:4 (1 cement: 4 graded coarse sand with polymer minimum 2% by wt. of cement used) as per specifications and directions of Engineer-in-charge. Note: Measurement and payment: The pre-measurement of thickness shall be done just after the surface preparation is completed and Payment under this item shall be made only after proper wet curing has been done and surface has been satisfactorily evaluated by sounding / tapping with a blunt metal instrument and/or the 75mm size cube crushing strength at the end of 28 days to be not less than 30 N/ mm2). 12 mm average thickness

Providing and laying SBR Polymer modified (of approved make @ minimum 2% by wt. of cement used) plain/reinforced concrete jacket for the structural members e.g. columns, pillars, piers, beams etc with concrete having the specified minimum characteristic compressive strength [with ordinary portland cement, coarse sand and graded stone aggregate of 10mm maximum size in proportion as per design criteria] with specified average thickness all-round existing core of RCC member. Note: Rates shall be for finished surface area of concrete and shall include the cost of making holes in existing RCC slab, if required, for pouring concrete in shuttering mould of jacket and appropriate approved Super-Plasticiser for rendering concrete as flowable self compacting and SBR polymer but shall exclude cost of reinforcement, bond coat, Shear Keys, centering and shuttering, strutting, propping etc (Payment under this item shall be made only after proper wet curing has been done and surface has been satisfactorily evaluated by sounding/tapping with a blunt metal instrument). 75mm thick in Grade M 25 with cement content not less than 330 kg per cum

Shotcreting R.C.C. Columns, beams and slabs etc. in layers with approved design mix concrete having the specified minimum characteristic compressive strength [with ordinary Portland cement, coarse sand and graded stone aggregate of 10 mm maximum size in proportion as per design criteria] including the cost of cantering and shuttering at edges and corners etc. as directed by Engineer-in-Charge. Note: Rates shall include the providing necessary ground wires etc. The levelling gauges, if used, shall be paid for separately. Payment under this item shall be made only after proper wet curing has been done and surface has been satisfactorily evaluated by sounding/tapping with a blunt metal instrument. 25 mm thick in Grade M 25 with cement content not less than 330 kg per cum

-do- 50mm thick in Grade M 25 with cement content not less than 330 kg per cum

Strengthening structural elements by providing & fixing CARBON FIBER(Make Sika or BASF or FOSROC) Surface preparation: Grinding concrete substrate, cleaning it with wire brush removing oil, laitance if present, rounding sharp edges to min 25mm radius etc. complete. Profiling: providing & Applying compatible M brace primer on prepared substrate, Filling the holes and uneven surface with high strength epoxy putty etc. complete IF Required. Wrapping: Providing & Applying first coat of Saturant,cutting the carbon fiber sheet to size,wrapping the fiber sheet to structural element at desired orientation using tamping roller to avoid any air voids etc. complete. Sand pasting: Providing & Applying second coat of Saturant after min.12hrs,rectify air voids if any paste the rive sand on it to make surface rough to take any further finishes (Mode of measurement: Per sq.mt of M brace CF 400 sheet applied and not surface area of Concrete application & Quantity will be measured including wastage)The rate includes all type of material, application, equipment & scaffolding etc complete. Rate is applicable for all height & level.

Providing & Applying polymer modified, flexible cementatious negative side waterproofing coating with elastic waterproofing polymers on interior wall plaster surface in three coats @14.35 kg/10 sqm. one coat of self priming of cementatious waterproofing polymer(dilution with water in the ratio of 1:1)and two coats of cementatious waterproofing polymer (dilution with water in the ratio of 3:1 ) after scrapping and properly cleaning the surface to remove pre-existing paint film & loose particles till plaster is visible, complete in all respect as per the direction of Engineer-in-charge

Providing and laying water proofing treatment in sunken portion of WCs, bathroom etc., by applying cement slurry mixed with water proofing cement compound consisting of applying : (a) First layer of slurry of cement @ 0.488 kg/sqm mixed with water proofing cement compound @ 0.253 kg/ sqm. This layer will be allowed to air cure for 4 hours. (b) Second layer of slurry of cement @ 0.242 kg/sqm mixed with water proofing cement compound @ 0.126 kg/sqm. This layer will be allowed to air cure for 4 hours followed with water curing for 48 hours. The rate includes preparation of surface, treatment and sealing of all joints, corners, junctions of pipes and masonry with polymer mixed slurry.

APP based polymeric membrane minimum weighing 3kg/sqm and minimum 3mm thick reinforced with polysternon wove fabric (wt. not less than 150 gms/sqm) land on primed surface by forced application complete all as specified.

Reinforced cement concrete (design mix) in Foundations, including rafts, footings, foundation beams; plinth beams; bases for columns, etc; basement slabs, under-reamed piles and mass concrete (M25 - 20mm graded aggregates)

Reinforced cement concrete (design mix)in Columns, pillars, piers, posts and struts (M25 - 20mm graded aggregates)

Providing and fixing of expansion joint system related with floor location as per drawings and direction of Engineer-In-Charge. The joints system will be of extruded aluminum base members, self aligning / self centring arrangement and support plates etc. as per ASTM B221-02. The system shall be such that it provides floor to floor /floor to wall expansion control system for various vertical locations in load application areas that accommodates multi directional seismic movement without stress to it's components. System shall consist of metal profiles with a universal aluminum base member designed to accommodate various project conditions and finish floor treatments. The cover plate shall be designed of width and thickness required to satisfy projects movement and loading requirements and secured to base members by utilizing manufacturer’s pre-engineered self- centring arrangement that freely rotates / moves in all directions. The Self - centring arrangement shall exhibit circular sphere ends that lock and slide inside the corresponding aluminium extrusion cavity to allow freedom of movement and flexure in all directions including vertical displacement. Provision of Moisture Barrier Membrane in the Joint System to have watertight joint is mandatory requirement all as per the manufactures design and as approved by Engineer -in- Charge. (Material shall conform to ASTM 6063). Floor Joint of 100 mm gap

Forming 12mm thick Expansion joints filled with pre-formed bituminous filler and top 30mm primed and sealed with sealing compound, Grade ‘A Thickness of concrete slab in mm-150mm

Form work to sides of concrete foundations, footings, bases of columns, raft and raft beams, sides and soffits (if any) of foundation and plinth beams; and similar work; vertical or to batter

Form work to sides of pillars, posts, struts, piers, columns and stanchions

Structural steel, rolled section such as joist, beam, channel, angle, tee in available lengths

Glazed ceramic White Tiles (200x200mm) x 7mm thick, in floors etc. set and jointed in neat cement slurry and pointed in white or coloured cement to match

Making plinth protection 50mm thick of cement concrete 1:3:6 (1 cement: 3 coarse sand : 6 graded stone aggregate 20 mm nominal size) over 75mm thick bed of dry brick ballast 40 mm nominal size, well rammed and consolidated and grouted with fine sand, including necessary excavation, levelling & dressing & finishing the top smooth.

Damp proof course In cement concrete 1:2:4 Type B-0 to horizontal or vertical surfaces including necessary formwork (40mm thick))(In cement concrete 1:2:4 Type B-0)

Rendering 12mm thick in Cement Plaster 1:6 on fair faces of brick work or concrete surfaces

Painting with black anti corrosive bitumastic paint of approved brand & manufacture to give an even shade One or more coat on old work

110 mm diameter PVC (SWR) pipes single socketed in any length with rubber ring joints fixed to walls

110 mm PVC (SWR) couplers

110 mm PVC (SWR) junction single, (Single T) equal or unequal

Providing and fixing un plasticised -110 mm PVC pipe clips of approved design to unplasticised - PVC rain water pipes by means of 50x50x50 mm hard wood plugs, screwed with M.S. screws of required length, including cutting brick work and fixing in cement mortar 1:4 (1 cement : 4 coarse sand) and making good the wall etc. complete.

CEMBOND CONSTRUCTIONS PVT. LTD.

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