Roof treatment and repair of mumty and roof and other minor repairs at Old, New Chitral line and Basantar Line in the area of AGE B/R-III under GE (West) Delhi Cantt-10

Amount

Note :- 1. All items of work are to be executed in multi-storeyed (G+3) buildings using necessary scaffolding. The cost of scoffolding , safety belt and cradle platform to be included in the unit rate for each item. No extra payment will be made on this account. 2. Site will be handed over in Phases (as specifically desired by user) through out the contract period.

Complete removal of existing treatment of wall using wire brush/mechanical/ electrical driven sanders, washing, rubbing down and stoping of painted surface including preparation of surface etc and applying two coats of cement base paint complete all as specified and directed by Engineer-in-charge. Note- Item is to be executed in multi-storeyed (G+3) buildings using necessary scaffolding. The cost of scoffolding , safety belt and cradle platform to be included in the unit rate. No extra payment will be made on this account.

M&L rendering 15mm thick ready mix mortar on fair faces of brick work or concrete surfaces of walls and finished even and smooth without using extra cement including taking down old plaster of any description on walls complete all as specified and directed by Engineer-in-charge. Note- Item may be executed in multi-storeyed (G+3) buildings using necessary scaffolding. The cost of scoffolding , safety belt and cradle platform to be included in the unit rate. No extra payment will be made on this account.

M&L for preparation of new plastered surfaces on walls and applying two coats of cement base paint including one coat of alkali resistant primer complete all as specified and directed by Engineer-in-charge. Note- Item is to be executed in multi-storeyed (G+3) buildings using necessary scaffolding. The cost of scoffolding , safety belt and cradle platform to be included in the unit rate. No extra payment will be made on this account.

M&L for rendering 10 mm thick with ready mix plaster on fair face of ceiling and finished even and smooth without using extra cement, including taking down cement plaster of any description on brick wall or concrete surfaces including raking out joints in brick work, hacking for key, scrubbing down with water complete all as specified and directed.

S & F Pre- painted galvalume aluminium zinc coating GI based corrugated steel sheet 0.50mm thick of any colour having tensile strength of 550 Mpa as in roof covering/cladding to wall, fixed with self tapping screws complete all as specified and directed by Engineer-in-charge.

Dismantling of brick tiles or terracing single layer on roof and removal of rubbish beyond MOD land complete all as specified and directed.

Demolition of mud phuska on roof slabs,any thickness including cleaning of roof surfaces and removing the debris outside the MOD land complete all as specified and directed.

M&L for providing cement concrete 1:2:4 type B-I (20mm graded agg) in roof kerb or mud slops, rounded or chamfered on edges, coping, kneelers, kerb water tough and the like incl weathering, slightly rounded or chamfered angles and throating as directed including necessary form work complete all as specified & directed.

M&L for water proofing treatment to roof surface with APP polymeric based water proofing membrane 3mm thick & weighting not less than 3.0 Kg/Sqm of approved make black finish consisting of a central core of high molecular high density polyethylene film (HMHDPF) & reinforced with non woven polyester matt of min 90 gm/sqm with a thermo fusible finish laid over a coat of hot blown bitumen of 85/25 grade conforming to IS 702 @ 1.2 kg/sqm over a coat of an bitumen primer conforming to IS-3384 @ 0.4 Ltr/Sqm over prepared plastered roof surfaces, forcing overlap with a propane or butane gas torch with a overlap of 75mm at sides and 100mm at ends and sealing including 10mm thick rendering in CM 1:3 over PCC padding with water proofing compound complete all as specified and directed. Note:-(Rate of WPC shall be included in unit rate)

M&L for cement concrete 1:3:6 type C-1 (using 20mm graded stone aggregate) on roof padding surface finished even and smooth without using extra cement complete all as specified and directed.

M&L for cement concrete plain tiles 25cmx25cmx22mm thick machine pressed set jointed,grouted and pointed flush in CM 1:3 mixed with 5% crude oil by weight of cement in neat cement slurry with grey cement and no pigment in floors over and including screed bedding 15mm thick in CM 1:6 complete all as specified and directed.

M&L for followings :- (i) Removing plaster & finishes from all exposed / damaged portion of coloumns, slabs & beams (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 from all sides) (iii) Removal of cover concrete with under cutting of up to a depth of 10mm 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. (The Engr-in-charge may order sand blasting if needed) (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.

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. NOTE :- Measurement will be taken of surface area of reinforcement bars.

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) upto 50 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. (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 Providing & Pouring Micro concreting M-40 grade :- (i) Dry concrete substrate surface and free of debris & dust (ii) Applying Epoxy bond coat on the sound concrete 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 pour Micro concreting M40 grade, Make : MasterEmaco S46T of BASF or equivalent FOSROC/SIKA using approved mixing machines/pumping under pressure via approved pneumatic pump at the locations to be repaired in RCC beams & columns etc,. Adding of aggregates will be permitted only as per manufacturer’s recommendation without compromising the strength. The rate shall include cost of all materials (except re-bar) labour charges for mixing, pouring concrete, cost of tools, lead & lift of materials, transportation etc., to carry out the complete work complete all as specified and directed. Note : The cost of micro concrete M-40 grade & Epoxy bond coat is inclueded in this item.

M&L for Drilling & chemical anchoring of new rebars/stirrups :-(i) Drilling in to the sound RCC members for anchoring of rebars/stirrups as directed, the dia of hole to be match with dia of rebar & length of drilling as under :-8 mm dia bar - drilling length 80 to 100 mm - 384 NosNote : Anchoring of new re-bars of any dia as directed in to the sound RCC members as directed using pure epoxy resin anchoring mortar (Master flow 935 of BASF or equivalent FOSROC/SIKA) with appropriate diameter of drilling of holes as mentioned above for proper bonding into the concrete etc., complete. (The cost of drilling hole & chemical anchoring with epoxy resin is inclueded in this item)

M&L for Drilling & chemical anchoring of new rebars :- (i) Drilling in to the sound RCC members for anchoring of rebars/stirrups as directed, the dia of hole to be match with dia of rebar & length of drilling as under :- 16 & 20 mm dia bar - drilling length 160 to 180 mm Note : Anchoring of new re-bars of any dia as directed in to the sound RCC members as directed using pure epoxy resin anchoring mortar (Master flow 935 of BASF or equivalent FOSROC/SIKA) with appropriate diameter of drilling of holes as mentioned above for proper bonding into the concrete etc., complete. (The cost of drilling hole & chemical anchoring with epoxy resin is inclueded in this item)

M&L for use & waste of form work using steel sheets , steel bracing, propping etc around structural members where micro concreting to be done and keeping form work in position till required specified period complete all as specified and directed. Note : Form work shall be 100% leak proof. For purpose of payment area in touch with concrete shall be measured.

S&F for stengthening existing reinforcement by use of mild steel bars of any dia , cut to length, bent to shape required, including cranking, bending spirally and binding with and including mild steel wire (annealed) not less than 0.9mm dia or securing with clips complete all as specified and directed.

Taking up or down 20mm bore steel tubing and connections including cleaning of serviceable pipe for refixing or removal to store complete all as specified and directed.

S&F GI tube medium grade pipe 20 mm including fittings like elbow,union,socket,tank nipple and other connected items to tank including taking down complete all as specified and directed.

S&F 100mm bore cast iron soil waste or vent spun pipes in any length with or without ears with lead joints laid in trenches or in floors/ walls complete all as specified and directed.

S&F 75 mm bore cast iron soil waste or vent spun pipes in any length with or without ears with lead joints laid in trenches or in floors/ walls complete all as specified and directed.

S&F rotational moulded polythylene water storage tanks three layered 500 Ltrs capacity (White colour), with cover (cylindrical vertical with closed up) hoisted and fixed in position complete all as specified and directed.

S&F in repair ball valve high pressure of PTMT with epoxy coated aluminum rod and high density polythene float and flynut complete, screwed for iron pipe or brass furrule size 25mm bore complete all as specified and directed. (Min weight 455gms complete all as directed)

S&F in repairs 20mm bore of Gun-metal, globe or gate valves, with iron wheel head, screwed both ends for iron pipe and fixed complete all as specified and directed.

S&F 100mm bore cast iron bends/T (any radius) diminishing pieces or tapers (larger bore to be measured) with oval access doors.

S&F 75mm bore cast iron bends/T (any radius) diminishing pieces or tapers (larger bore to be measured) with oval access doors complete all as specified and directed.

M&L for brick work with sub class 'B' brick straight or curved on plan exc. 6 mtr mean radius built in cement mortor 1:6 ccomplete all as specified and directed.

Demolition of brick work built in cement /lime mortor in any position / situation in walls/parapets complete all as specified and directed.

Uprooting and removing of wild growth trees from wall/roof/chajjas/CI pipes etc any location on buildings including removal of roots, sub roots upto 15cm girth etc, making good with PCC 1:2:4 or concrete in CM 1:3 as directed and finishes the surface matching with adjoining areas of wall/roof etc upto full height of bldgs (i.e. upto 4th storey bldg), including spaying Herbicide/ Weed killer as per manufacturer's instruction complete all as specified and directed

Dismantling of cast iron or reinforced concrete drain pipes, jointed in cement mortar and taking out of trenches, if required, Internal dia of pipe 100mm complete all as spd & directed.

Dismantling of cast iron or reinforced concrete drain pipes, jointed in cement mortar and taking out of trenches, if required, Internal dia of pipe 75mm complete all as spd & directed.

Taking down wooden/steel chowkhats/door frame including shutter (without taking off shutter) not exc.1.5 Sqm each complete all as specified and directed.

Refixing of Chowkhats or frames not exc. 1.5 sq. m each Same opening with welding and repair complete all as specified and directed.

S&F mild steel framed work as in door or gates of angle or other sections, cooler stands, with gusset plates rails, braces etc complete drilled for fixing of steel sheeting or other covering, doors etc to be prepared for hanging or sliding with and including either hooks and purpose made hinges or steel sheeting or other covering, running rails and guides) and hanging, fastening and fixing complete conforiming to Fe 290 Gde E-165.

K S CONSTRUCTIONS (BID ID -3211818)

GLOBAL DEVELOPERS COMPANY (BID ID -3211750)

M/S Ayub Khan (BID ID -3218045)

M/S DSSP Construction Co. (BID ID -3211930)

Chandramauli Engineers Pvt. Ltd. (BID ID -3215788)

M/S VERMA BUILDER (BID ID -3215640)

M/S GEETANJALI ENTERPRISES (BID ID -3218279)

krishna construction co. (BID ID -3211868)