GE/C-09/2024-25 REPAIR/ MAINT OF ROOF TREATMENT, CHAJJA, COLUMN, BEAM, WALL PLASTER IN MULTI STOREY BLDGS IN ARJAN VIHAR, PRATAP CHOWK AND OTHER ADJOINING AREA UNDER GE (CENTRAL) DELHI CANTT-10

Amount

M &L for Brushing neat cement slurry with 3 Kg of cement per square metre complete all as specified and directed .

M&L for rendering 15mm thick on top of roof concrete incl taking in cement mortar 1:4 with water proofing compound at the rate of 3% by weight of cement to have a smooth surface for laying of water proofing incl taking down complete all as specified.

M & L for applying Smartcare Dampproof, a fibre reinforced elastomeric liquid water proofing membrane formulated with reinforcing acrylic fibers having Sun Reflectivity Index (SRI) of 105 on top of roof surface in multiple coats @2 litre/sqm. Primary coat is self-priming coat of elastomeric waterproofing liquid (dilution with water in the ratio of 3:1) and other coats needs to be applied undiluted. The coating needs to be reinforced with 40 GSM geotextile, to sandwiched between 2nd & 3rd coat of coating. The application shall be carried out after scrapping and properly cleaning the surface to remove loose particles with wire brushes, complete in all respect as per the direction of Engineer-in-Charge. When the 2nd coat is wet, the Smartcare EPDM tape (at corners and edges)shall be inserted between second and third coat to secure corners & edges, let the material ooze out from the tapes corner. Same treatment of Smartcare Dampproof shall be continued to the parapet walls to better envelope the whole area. Notes for item No 3 (a) The work shall be executed through authorised applicator of manufacturer only. (b) Authrised Applicator shall be approved by GE before starting of work. (c) All materials shall be procured directly form manufacturer. The purchase voucher shall be produced to the Engineer-in-Charge for his verification of material. Engineer-in-Charge shall deface the original purchase vouchers. (d) MOU with authorized applicator will be submitted successful L1 bidder after opening of Financial Bid within a fixed time frame of 7 days otherwise tender will be cancelled (d) A guarantee amount of 5% of contract of work done for item No 3 of BOQ will be retained for 5 years of the completion of work.

M&L for APP based polymeric membrane plain finish minimum weighting 3 kg/Sqm and minimum 3mm thick reinforced with polyster non wove fabric (wt not less than 150 gms/sqm) over one coat of 85/25 bitumen @1.2 kg/sqm and paste the membrane with torching method and again apply a coat of 85/25 bitumen @ 1.2 kg/sqm at overlapping joints upto G+5 storey bldg complete all as specified.

M&L for applying two coat of silver Shield BITUMINIOUS paint on app membrane complete all as specified and directed by Engr-in-Charge.

Disconnecting existing water tanks, setting aside (or lowering if required) for cleaning,repairing and removing all scale and dirt, etc. from tanks and from mouths of circulating pipes and reconnecting and refixing in position for tanks capacity exc 500 and n.exc 1000 ltr complete all as specified and directed by Engineer-in-Charge.

Taking up or down 15 mm dia GI tubing and connections complete all as specified.

Taking up or down 20 mm dia GI tubing and connections complete all as specified.

S&F 15mm dia GI tubing medium grade with all fittings and fixed to wall and ceiling or laid in floors, pipes should be painted with bituminous paint of approved quality complete all as specified and directed.

S&F 20mm dia GI tubing medium grade with all fittings and fixed to wall and ceiling or laid in floors etc complete, all as specified.

S&F 1000 ltr capacity rotational moulded polyethylene water storage tanks triple layer (cylindrical vertical with closed top) hoisted and fixed in position with 20mm Ball brass valves,high pressure,with polythene float and flynut complete, screwed for iron pipe or brass ferrule Minimum wt 20mm-210grm and s&f in repair 20mm dia Gun-metal, globe or gate valves, with iron wheel head, screwed both ends for iron pipe and fixed incl Dismantling of PVC water tanks of exc 500 litres and n.exc 1000 litres capacity of any condition or type incl complete all as specified and directed.

Cutting shrubs wild growth, plants not exc 30 cm girth grown on permanet structures and removing same growth right from roots and stopping the recurrence by injecting herbicide Glyphosphate 4+ solution (04 % concentrate) into plant root to eliminate further growth. Application shall be as per manufactureres intructions. The disturbed area shall be repaired with PCC (1:2:4) Type B0 mix and surface finished even and smooth in cm 1:4 incl applying two coats of matching finish i.e. Building is not less than 50 nos . complete all as specified and directed at site.

Demolition/cutting of RCC of any description such as RCC Water tank, beams, columns or any position by using diamond saw blade cutting machine without damaging adjacent RCC structures not otherwise specifically provided for (reinforcement cutting as required to facilitate demolition) including G+5 on roof top/Mumty/ parapet and removal of rubbish outside complex (MOD Land) complete all as specified and directed. Note: The rate quoted by the contractor is deemed to include using saw blade cutting machine wherever required as directed by Engineer in Charge. Rate quoted for G+5 Building, work required in patches in different locations.

Demolition of brick work built in cement mortar in any description and position, complete all as specified.

M&L for brick work with sub class 'B' brick straight or curved on plan exc 6 metre mean radius with old size bricks, built in cement mortar 1:6, complete all as specified.

All as per item no 15 before but except bricks

M&L for cement concrete 1:2:4 type B1(using 20mm graded stone aggregate) as in blocks for hold fast, coping, benching etc. including weathering, slightly rounded or chamfered angles or throating including form work to concrete surfaces, complete all as specified upto six storey height.

M&L for rendering 15mm thick on fair faces of brick work or concrete surfaces in CM 1 : 4 mixed with water proofing compound finished even and smooth without using extra cement complete all as specified.

M&L for rendering 15mm thick on fair faces of brick work or concrete surfaces in CM 1 : 4 mixed with water proofing compound finished even and smooth without using extra cement including taking down old plaster incl two coats of Apex complete all as specified. Note: Rate quoted for G+5 Building, Work required in patches in different locations.

M&L for ready mix plaster of 15mm thick on brick or conc surfaces incl taking down cement plaster incl necessary cement slurry with bulk density 1.40 to 1.70 kg, water ratio 17 to 19% by weight & compressive strength as per IS 4031 part 6 applied as per manufacturer instruction. Note: Rate quoted for G+5 Building, Work required in patches in different locations.

M & L for 10 mm thick rendering in cement mortar 1:3 on concrete surfaces of ceiling, chajja and like surface finished even and smooth without using extra cement and applying three coats of white lime wash on newly plastered ceiling surfaces including taking down old plaster on ceiling complete all as specified. Note: Rate quoted for G+5 Building, Work required in patches in different locations.

M&L for followings :- (i) Removing plaster & finishes all around the coloumns, slabs & beams (on all four sidescription of column to full height , three sidescription of beam to entire span & bottom of slab to area as directed) (ii) After cleaning gently removing cover concrete using pneumatic/electric chipper or any other approved tool in entire portion of structural member (removal of cover concrete shall be done to an extent when reinforcement is visible) (iii) Removal of cover concrete with under cutting of up to a depth of 20mm beyond reinforcement around full circumference & full length of bar where directed. (concrete shall be stripped to an extent concrete substrate is exposed) (iv) Cleaning exposed concrete substrate by using water jet. (v) Removing visible rust along the length of reinforcement using hand tools as approved. Supply & applying of rust removing chemical to remove rust from existing reinforcements. (The Engr-in-charge may order sand blasting if rust is approved) (vi) Any other work as directed by Engr-in-charge to present clean surface for determination of type of repair to be carried out complete all as specified and directed. Note: Rate quoted for G+5 Building, Work required in patches in different locations.

M&L for providing rust proof /anti corrosive treatment to bars :- (i) cleaning of all exposed bars (new & old) alround (ii) Apply a single coat of Alkaline rust converting primer on alround bars new & old as recommended by the manufactuer (iii) Apply two coats of Epoxy phenolic anti corrosive protective coat on bars alround new & old as recommended by the manufactuer. Note : Anti corrosive treatment shall be continuous espcially in the regions where pitting, imperfections, etc were present on the surface of the bars. It is important that the rear portions of re bars (those towards the concrete substrate) should not be left without coating.

M&L for providing PMM (Polymer modified cementitious mortar) :- (i) Dry sub strate surface and free of debris & dust (ii) Applying Epoxy bond coat on the sound substrate using approved spray machine & ensuring that no pin holes are visible.(In case pin holes are still visible after a coat, a second coat shall be applied to ensure absence of pin holes). (iii) Immediately after application of epoxy bond coat as above apply PMM (Polymer modified cementitious mortar) of 25 mm thickness. Note : Application of PMM shall be preferably be in coats of appx 10mm thickness. PMM work shall be executed in fairely rapid successions so as entire work is completed with in 30 mins). PMM shall be pre packed ready to use. Rate quoted for G+5 Building, Work required in patches in different locations. (iv) PMM surface to be moist cured for three days followed by air curing in temperature as recommended by manufactuer complete all as specified and directed.

M&L for chipping of spalled and loose concrete and cleaning rust from re-inforcement by sand brushing scrubing down concrete surfaces with wire brushes cleaning with water allowed to dry applying a layer of zinc rich epoxy primer as antirust on all exposed reinforcement followed by a layer of bonding coat of a layer of epoxy adehessive on complete exposed surfaces of concrete and provide guniting in two layers over steel welded mesh 2 mm dia of wire and total aperture 75 mm, thickness of gunite n.exc 25 mm thick (average thickness) using cement mortar 1 :3 with OPC 43 grade cement mixed with polycrete admixture @ 2 % by wight of cement or as per manufactures instructions and finally applying 10 to 15 mm thick cement plaster over gunite surfaces of required thickness to give an even uniform and smooth finish conforming to proper Geometrics in cement mortar 1:4 to match with the existing surface as in side and soffits of slabs,chajjas,fins,facias ,parapets ,columns and beams etc complete including necessary scaffolding ,shuttering necessary chased to brick work or RCC members at any height upto six storey buildings incl removing of small trees shrubs etc all as specified. Note: steel welded mesh to be welded with the existing reinforcement. The cost of welded mesh is to be welded with the existing re-inforcement is deemed to be included in the quoted rate complete all as specified and directed. Rate quoted for G+5 Building, Work required in patches in different locations.

S&F Roof trusses (framed), truss, framed brackets of angles, purlins, crane gantries, rails and fastenings and heavy bracket framing (Beam, tee, angle, channel flat or hollow sections) including distance pieces, cleats etc. Fe 410-W(Gde E-250) quality-A complete all as specified and directed by Engineer-in-Charge

S&F Pre painted curved galvalum aluminium zinc coating GI based corrugated sheet 0.5mm thick of an colour having tensile strength of 550 Mpa as in roof covering/cladding to wall ,fixed with self tapering screws as specified by Engineer in Charge.

S&F Prefabricated Factory made FRP Chajja 4mm thick of Fibre ways brand or equivalent in required size, colour and design made by Reesin Transfer Moulding (RTM) machine Tecnology, resulting in voids free compact laminate in single piece, having smooth gradual slope curvature of easy drainage of water as directed by Engr-in-Charge.

Schedule of Credit

M/S Parmod Johar

M/S MSD & Associate

POONAM ENTERPRISES

imran construction company

M/S VERMA BUILDER

M/S SHRINARAYAN MEENA

SHREE RAM BUILD TECH

m/s VK construction company