CERTAIN STRUCTURAL REPAIR AND REHABILITATION TO CHAJJA PARAPET WALL SHELVES FACIA AND ROOF TREATMENT OF CERTAIN BUILDING IN MANEKSHAW MARG, URBAN VILLAGE, TIGRIS ROAD, CHURCH ROAD, CASSEL ROAD, MALL ROAD AND AOR OF AGE B/R-I UNDER GE (EAST) DELHI CAN

Amount

Impregnating cream of injection into masonry or concrete wall 230 mm to 460 mm thick against capillary rising humidity. Rising bar super strong (Product No 201) of chougule building chemicals or equivalent/Pidilite/Dr Fixit/Sika/FOSROC complete all as specified and directed. (a) The surface must be sound, abosorbent, clean, free from dust, oil, paint, curing agents, loose cement of lime plaster & concrete, debris or any separation layers. (b) The plaster must be knocked off at least 50 cm beyond the visibility penetrated area. (c) Damaged mortar joins are to be scraped out to a depth of approximately ly 2-3 cm. All sharp edges/joints need to be leveled loose concrete to be removed. (d) Drilled nore holes at ground level horizontally. The boreholes drilled horizontal into masonry. (e) The hole shold be drilled until a depth of approx 5 cm (for a 6 cm thick wall) before the end of the wall is reached. The bore holes shold have a diameter of 12 mm upto a miximum of 15 mm and should be apaced approx 100 to 120 mm apart and the verticle offset is 6 cm max. (f) Before inserting Risingbar Super Strong or equivalent the boreholes must be cleaned from boring dust by using air pressaure. It is not necessary to pre wet the borehole. (g) For applying of Risding Bar Super Strong or equivalent the dosing system inserted as far as possible into the boreholes. While dosing the products uniformly, the injection nozzle is pulled out leading to a completely filled borehole. (h) Treatment of highly absorbent masonry might require repeated filling of the bore after 24 hours. Depending upon extent of damage, Rising Bar Super Strong or equivalent cab re injected into the same hole after 24 Hours. Depending on absorbency, application or nmasonry.

M&L for followings :- (i) Removing plaster & finishes from all exposed / damaged portion of facia, roof projection, parapet, chajjas , over hanging slabs, columns, 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) (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 and cleaning all around. (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 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.

M&L for providing rust proof /anti corrosive treatment to bars :- (i) Apply a single coat of Alkaline rust converting primer on alround bars new & old as recommended by the manufactuer (iii) Apply two coats of polymer modified anti corrosive cementitious coating with a total thickness of 2mm 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 or suitable brushes & 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 atleast strength equivalent of M-40 concrete of average 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. (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.

Demolition of cement concrete (reinforced) of any description and as in column, beams, facia, slabs, parpapet wall, drops, chajjas, shelves etc not other specifically provided for and removal of debris out side MOD land complete all as specified and directed.

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 or as per manufacturer instructions (ii) Anchoring of new re-bars of any dia as directed in to the sound RCC members as directed using pure epoxy resin anchoring mortar 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/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 :- 16 & 20 mm dia bar - drilling length 160 to 180 mm or as per manufacturer instructions. (ii) Anchoring of new re-bars of any dia as directed in to the sound RCC members as directed using pure epoxy resin anchoring mortar 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 laminated suitable plywood sheets or steel sheets , steel bracing, propping etc around structural members where micro concreting, 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

Providing and laying in slabs, beams, parapet walls, RCC walls, columns etc position of RCC M-25 design mix grade cement concrete for reinforced cement concrete work, using cement content as per approved design mix, including pumping of concrete to site of laying and the cost of centering, shuttering, form work and excluding reinforcement, including admixtures in recommended proportions as per IS: 9103 to accelerate, retard setting of concrete, improve workability without impairing strength and durability as per direction of Engineer-in-charge.The Mix design as per particular specfications shall be got approved by Engineer-in-Charge before execution of the item.The rate shall include cost of all specified materials and operations at all levels and heights, including the cost of centering, shuttering and form work excluding reinforcement which shall be paid under relevant item complete all as specified and directed. (Note :- Cement content considered in this item is @ 300 kg/cum as per IS 456 table showing minimum cement content. No extra will be paid nor any amount will recovered on account of variation of cement in mix design as per specifications for controlled concrete)

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 or suitable brushes & 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 above bond coat as above pour prepacked dual shrinkage compensated. Micro concreting M40 grade, using approved mixing machines/pumping under pressure via approved pneumatic pump at the locations to be repaired in RCC beams & columns etc, upto 100 mm thickness of micro concrete. 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 in this item.

Dismantling of brick work built in cement mortar of any description incl cleaning & stacking serviciable brick complete all as specified and directed.

M&L brickwork with subclass ‘B’ bricks, straight or curved on plan n exc 6m mean radius built in CM 1:4.

Taking down Cement Plaster on brick or stone walls, and concrete surfaces, ceiling and any position etc. including raking out joints, hacking for key, scrubbing down with water, etc. complete all as specified and directed

M&L rendering 5mm thick on ceiling surfaces of brick work or concrete surfaces in CM 1:3 to be finished even and fair without using extra cement.

M&L rendering 10 mm thick on ceiling surfaces of brick work or concrete surfaces in CM 1:3 to be finished even and fair without using extra cement.

M&L rendering 15mm thick on fair faces of brick work or concrete surfaces in CM 1:6 to be finished even and fair without using extra cement.

M&L rendering 15mm thick on fair faces of brick work or concrete surfaces in CM 1:4 to be finished even and fair without using extra cement.

Dismantling structural steel work including, grills , doors, gates,framed work , trusses etc., complete all as specified & directed.

M&L for Framed work such as grills, gratings, etc. with ends of bars shouldered and/or riveted, or forged into spikes; framed guard bars; barred iron doors; ladders; framed balusters; walk ways; railings; framework of water tanks and similar work conforming to Fe.290.Gde-E-165 ete all as specified and directed.

M&L for Mild steel TMT 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

All as per item No 21 here-in-before but 6mm to 8mm dia.

All as per item No 21 but 5mm dia and over upto and including 10mm dia in stirrups spacers and binders

M&L for preparation external new plasterd wall and ceiling surface and applying a layer of 2mm thick wall care putty, again sand papering thus making surface smooth and applying one coat of exterior primer and applying two coats of weather proofing exterior acrylic emulsion paint premium quality complete all as specified and directed by Engr-in-charge. (Make : BERGER (WEATHER COAT LONG LIFE 10), ASIAN (APEX ULTIMA), NEROLAC (EXCEL MICA MARBLE), DULEX (WEATHER SHIELD MAX). Note :- Item No 01 to 24 to will be also executed in highrise bldgs and necessary provision for T&P, scaffoling and safety measures etc shall deemed to be included in unit rate quoted by the tenderer for the same.)

M&L for preparation internal new plastered wall and ceiling surface and applying a layer of 2mm thick wall care putty, again sand papering thus making surface smooth and applying one coat of exterior primer and applying two coats of weather proofing exterior acrylic emulsion paint premium quality complete all as specified and directed by Engr-in-charge. (Make : BERGER (WEATHER COAT LONG LIFE 10), ASIAN (APEX ULTIMA), NEROLAC (EXCEL MICA MARBLE), DULEX (WEATHER SHIELD MAX).

M&L for preparation Old wall and ceiling surface and applying a layer of 1mm thick wall care putty, again sand papering thus making surface smooth and applying one coat of interior primer and applying two coats of Internal acrylic emulsion paint premium quality complete all as specified and directed by Engr-in-charge.

M&L for complete removal of existing finish of Old Decorated wall and ceiling surface and applying a layer of 2mm thick wall care putty, again sand papering thus making surface smooth and applying one coat of exterior primer and applying two coats of weather proofing exterior acrylic emulsion paint premium quality complete all as specified and directed by Engr-in-charge. (Make : BERGER (WEATHER COAT LONG LIFE 10), ASIAN (APEX ULTIMA), NEROLAC (EXCEL MICA MARBLE), DULEX (WEATHER SHIELD MAX).

M&L providing and applying the plaster with single component ready to use repair mortar (SMART CARE REPAIR MORTAR or equivalent) capable of applying 20 mm average thickness in single layer and finishing with trowel with a bond coat SBR polymer @ 10% of cement weight modified cementious bond coat @ 2.2 kg cement/Sqm of surface area including taking down existing roof treatment of any type filling holes, cavity in CM 1:3 and cleaning surface with wire brush, washing surface with water to the entire satisfaction of Engr-in-Charge/taking down cement plaster on brick/concrete surfaces, including raking out joints, hacking for key, scrubbing down with water etc to receive further treatment, complete all as specified and as directed. Make: Asian Paints or equivalent in Sikka, Fosroc and as spproved by GE . Note : The application shall be executed on any type of surface and on horizontal/Vertical areas.

Providing and applying Smartcare Dampproof, a fibre reinforced elastomeric liquid water proofing membrane formulated with reinforcing acrylic fibers having Sun Reflectivity Index (SRI) of 105 on horizontal/vertical surfaces of roof/wall/chajjas in multiple coats @ 2.0 litre/sqm. Primary coat is self-priming coat of elastomeric waterproofing liquid (dilution with water in the ratio of 3:1, damp proof : water) and other coats 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. Make: SmartCare Damp Proof of Asian Paints or equivalent as approved by GE Notes: (1) The work shall be executed through authorised applicator of manufacturer only. (2) Authrised Applicator shall be approved by GE before starting of work. (3) All materials shall be procured directly form manufacturer. (4) Guarantee: The contractor shall furnish a written guarantee for the effectiveness of the water proofing treatment for a period of Eight years in favour of the GE. A sum equivalent to 2.5% (Two point Five Percent) of the cost of water proofing treatment shall be retained by the Govt from the contractor’s dues as security deposit. The contractor may, however, furnish a fixed deposit receipt in lieu from a Schedule bank pledged in favour of Garrison Engineer.

M&L for preparation of new steel surface and applying two coat of synthetic enamel paint above red oxide over 10cm width or girth complete all as specified and as directed by Engr-in-Charge.

M&L for preparation of Old steel surface and applying two coat of synthetic enamel paint above over 10cm width or girth complete all as specified and as directed by Engr-in-Charge.

M&L Providing Cement Concrete type B 1 1:2:4 using 20 mm graded aggregate in lintels upto 1.5m clear span, cills, steps; seismic and other similar bands, plinth courses, string courses, lacing courses, parapets and railings upto 60 cm in height,copings, kneelers, apex stones, bed plates, kerbs, water troughs and the like including weathering, slightly rounded or chamfered angles and throating, as directed complete all as specified and as directed

M&L Provinding Cement concrete in foundations, filling and mass concrete type c2 1:3:6 using mm garded aggregate complete including demolition complete all as specifed and as directed

Note :- Item No 01 to 32 will be also executed in highrise bldgs and necessary provision for T&P, scaffoling and safety measures etc shall deemed to be included in unit rate quoted by the tenderer for the same.)

R. S. Associates

Akhil Enterprises

S GOURAV PRAKASH ENTERPRISES

Vipul Construction

M/s Shubh Enterprises

H S KALSI AND BROS