REPAIR TO ROOFs, CHAJJAS ETC UNDER AGE B/R-II OF GE (N) MAMUN

Amount

Dismantling brick tiles, terracing tiles, single layer from roof laid, beded and pointed in any mortar, complete all as specified and directed

Demolition of cement concrete (un reinforced) Roofs, floors (other than ground floors), beams, staircases, landing, chajjas of any description as required to facilitate demolition, rubbish off the premises complete all as specified and directed

M&L for PCC 1:2:4 type B-0 ( using 12.5mm graded crushed stone aggregate) padding as levelling course/padding using water proofing compount laid over existing roof, surface finished rough to receive cement mortar including necessary formwork, complete all as specified and directed.

20mm thick cement plaster in cement mortar 1:4 on concrete surface of Roof slabs finished even and smooth using WPC liquid as per manufacturer instruction or 0.200 ltr in 50 Kg of cement, including raking out joints, hacking for keys, scrubbing down with water etc complete all as specified & directed (WPC Shall be measured and paid separately).

Material and labour for preparation of surfaces and apply first of coat Fiber reinforced elastomeric liquid water proofing membrane formulated with PU hybrid polymers and reinforcing acrylic fibers with Sun Reflective Index (SRI) of 100-110, having minimum elongation of 300%, tensile strength of 2.9 Mpa and shall have cracks bridging ability upto 2.5mm and shall resist 10 bars of hydrostatic pressure & reduce surface temperature upto 10 degree Celsius with 33% dilution of priming coat. Laying of fiber mesh of 0.3mm thickness weave in leno pattern having 45 gsm/sqm and pasting it properly with overlap of 50mm and allow it to dry. Apply second of undiluted coat @ 0.45 ltr/sqm. Apply third and final coat undiluted @0.45ltr/sqm complete application to be done by the manufacture or authorised applicator complete all as specified and directed by Engr-in-Charge.

Note for item No 5 :- (a) Cleaning of dust, removal for all loose existing bituminous material manually with heat torch gun to get smooth plain finished surface, removing of vegetation/plantaion with no loose material on surface. (b) Conduct ponding test after 7 days, continnue curing of 14 days. (c) All Shifting/ removing of any wire/cable/AC unit/Water tank of any capacity or other any object as per site requirement an re-fixing the same, if needed shall deemed to be included in the quoted rates by the contractor. (d) Removal of any loose/packed items such as mud phuska, terrace tiles, cement screed bed shall be removed and surface shall be made free from depressions before applying treatment to the roof. Quoted rates shall deemed to be included this fact into account and no extra payment shall be made on this account. (e) Contractor shall verify availability of the materials in full qty from market before quoting the rates as no extension of time on this ground shall be granted. (f) All the sample/ make for water proofing material mentioned in item shall be got approved from the GE before procuring bulk quantity of material.

Supply only liquid water proofing compound

Taking up or down steel water tubing and connections including cleaning for refixing of pipe 15mm bore complete all as specified and directed.

S&F 15mm bore mild steel tubes medium grade galvanized ISI marked with all fittings, short pieces and fixed to walls, floor, ceiling etc complete all as specified and directed.

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

S&F 20mm bore tubes medium grade galvanized ISI marked with all fittings, short pieces and fixed to walls, floor, ceiling etc complete all as specified and directed.

M&L for Rotational moulded polyethylene water storage tanks ( cylindrical vertical with closed top) two layers, Capacity 2000 litres, ISI Marked including all accessories, hoisted and fixed in position all as specified in SSR Part-I including 20mm bore ball brass valves and including high pressure, with polythene float and flynut after dismantling of old/existing tank from roof slab/ staging of single/double/triple story bldg, lowering complete all as specified and directed.

Disconnecting water tank (from Roof Slab/staging of single/double/Triple story bldg), float valve with float arm, outlet pipe from PVC service water tank, emptying stored water through wash outlet, cleaning and removing all scale and dirt, etc. from tanks and from mouths of circulating pipes finally washing the internal surfaces with bleaching powder, closing wash outlet, re-fixing water tank, float valve and out let in proper position, replacemt of old PVC top cover with proper hinge type cover as per sample including minor repairs if required and testing of capacity 250 litres to 500 liters complete all as specified and directed.

Disconnecting water tank (from Roof Slab/staging of single/double/Triple story bldg), float valve with float arm, outlet pipe from PVC service water tank, emptying stored water through wash outlet, cleaning and removing all scale and dirt, etc. from tanks and from mouths of circulating pipes finally washing the internal surfaces with bleaching powder, closing wash outlet, re-fixing water tank, float valve and out let in proper position, replacemt of old PVC top cover with proper hinge type cover as per sample including minor repairs if required and testing of capacity 500 litres to 1000 liters complete all as specified and directed.

S&Fin repairs Rotational moulded polyethylene water storage tanks ( cylindrical vertical with closed top) two layers, Capacity 1000 litres, ISI Marked hoisted and fixed in position all as specified in SSR Part-I including 20mm bore ball brass valves and including high pressure, with polythene float and flynut after dismantling of old/existing tank from roof slab/ staging of single/double/triple story bldg, lowering complete all as specified and directed.

S&Fin repairs Rotational moulded polyethylene water storage tanks ( cylindrical vertical with closed top) two layers, Capacity 500 litres, ISI Marked hoisted and fixed in position all as specified in SSR Part-I including 20mm bore ball brass valves and including high pressure, with polythene float and flynut after dismantling of old/existing tank from roof slab/ staging of single/double/triple story bldg, lowering complete all as specified and directed.

S&F in repair 20mm bore dia gun metal globe or gate valves (as per sample) cast copper alloy chromium plated fancy type, ISI marked with crutch or butter fly handleswith iron wheel head, screwed both ends for iron pipe and fixed complete all as specified and directed

Demolition of brick work or stone masonry built in cement mortar including all quoins arches, pillar etc but excluding ashlar facing , dressed stone work and precast concrete articles, and removal of debris out off the premises etc complete all as specified and directed.

M&L for Brick work with fly ash bricks (Old Size bricks), sub class'B' bricks straight or curved on plan exc 6 mtr mean radius built in CM 1:6 complete all as specified and directed.

Taking down cement plaster on brick walls or stone walls of any description etc including raking out joints, hacking for key, scrubbing down with water etc, rubbish off the premises complete all as specified and directed.

M&L for Rendering 10mm thick on fair faces of brick work, concrete sruface in cement mortar (1:6), finished even and smooth without using extra cement complete all as specified and directed.

M&L for Preparation of new plastered surfaces of walls, applying plaster of paris putty of 1 mm thickness over plastered surface to prepare the surface even and smooth, applying wall care putty to desired even and smooth and levelled surfaces (any thickness) and applying two coats of oil emulsion distemper on walls over a coat of primer complete all as specified and directed.

M&L for Preparation of new plastered surfaces of walls, applying plaster of paris putty of 1 mm thickness over plastered surface to prepare the surface even and smooth, applying wall care putty to desired even and smooth and levelled surfaces (any thickness) and applying two coats of oil emulsion distemper on walls over a coat of primer complete all as specified and directed.

M&L for preparing new plastered surface of wall and appying two coats of cement base paint mixed with silicon based water repellent compound over a coat of primer by roller/brush including curing complete all as specified & as directed.

M&L for plastering 10 mm thick in CM 1:3 in fascia / edging / ceiling of Chajjas, roof projections etc, making the edges in line, in true shape and finishing the surface without using extra cement including taking out peeled off plaster/ concrete surface, and rubbish off the premises complete all as specified and directed.

M&L for rendering 5mm thick in CM 1:3 on concrete surface of ceiling, chajja, soffits of slabs, columns and beams etc, finishing the surfaces even and smooth without using extra cement including taking down of existing plaster of any description and removal of rubbish complete all as specified and as directed.

M&L for preparation of new plastered surface of ceiling and applying three coat of white wash complete all as specified & directed

M&L for applying two coats of 100% water based premium acrylic smooth exterior emulsion of approved colour with silicon additive excellent dirt pickup resistance with low VOC less than 50 gm/ ltr, antifungal / anti algai dirt resistence properties exterior paint of required shade (Company Depot Tinted) with silicon additives @ 1.43 ltrs (undiluted) /10 Sqm diluted with water and priming coat of exterior primer applied @ 0.90 ltrs/ 10 Sqm over new surfaces as per manufacturer's instruction applied with fully automatic airless spray machine of paint application with a flow speed of minimum 1 litre per minute having a pressure of 3300 PSI. Allow 6-8 hrs to dry the surface in between 1st and subsequent coats of paint complete all as specified and directed.

Taking down eaves gutters and rainwater pipes (any size or pattern), including all fitting, head, shoes, bend, swan-nacks etc., including cleaning or refixing and removal complete all as specified & directed.

S&F PVC (SWR) pipes 110mm bore single socketed, in any length with rubber ring joints, fixed to walls with clamps complete all as specified and directed.

S&F PVC (SWR) pipes 75mm bore single socketed, in any length with rubber ring joints, fixed to walls with and including taking down of old GI pipe from PCC/RCC wall of balcony complete all as specified and directed.

S&F in repair PVC (SWR) 110mm bore bends any radius, complete all as specified and directed (larger bore measured).

S&F in repair PVC (SWR) 75mm bore bends any radius, complete all as specified and directed (larger bore measured).

Cleaning of PVC over head water tank of capacity 500/1000 ltrs in existing position at 2/3 stories building and taking out and removing the accumulated other foreign/ foul material etc. (solid/ semi solid) and removing the same including writting the date of cleaning on the tank surface by white paint complete all as specified and directed.

Dismantling of Asbestos cement (corrugated, semicorrugated, etc.) sheets in roof coverings including ridges, and removal of rubbish complete all as specified and directed.

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

All as per item No 35 but 0.50mm thick plain pre-painted galvalume aluminum zinc coating GI based corrugated steel sheet.

Dismantling wrought iron or mild steel work of any description not otherwise provided for complete all as specified & directed.

S&F Steel work in tubular trusses including special shaped washer etc. complete using ERW or induction butt welded tubes conforming to IS.1161- 1979 or IS 4923-1968 grade St.-240 complete all as specified & directed.

M&L for preparation new steel or iron surfaces of any description over 10 cm width or girth and applying two coat of synthetic enamel paint over a coat of red oxide primer, complete all as specified and as directed.

Rust Treatment of exposed rebars:- Material and labour for applying one coat of single component rust removal @ 0.10 Kg/Sqm area of old rusted bars in RCC beam/colums/slab/chajjas etc and allow to dry for at least 8 hrs and cleaning the treated bars with steel wire brush and apply one coat of corrosion protection primer having 70 % zinc rich epoxy further applying 3rd coat of epoxy based bonding agent to old concrete surface for proper bounding of new & old concrete/plaster all as per manufacture instructions and as directed by Engr-in-Charge

Material and labour for taking down of peeloff plaster/ loose concrete and Plaster the surface/filled the crack area with readymade polymer modified mortar mixed with water cement ratio @ 0.4% & apply on old concrete surfaces including filling minor cracks (thickness upto 40mm), make the surface in true line, even & smooth all as specified and directed by Engr-in-Charge.

Material and labour for demolition of old loose concrete (reinforced), replacement of decayed/rusted steel with new TMT steel & binding with old bars and filled the area/cast with readymade micro concrete as per manufacturer's instructions all as specified and directed by Engr-in-Charge. Note for serial item Nos 188,189 & 190:- 1. Cost of all necessary formwork & scaffolding upto G+2 Story is deemed to be included in the item, nothing shall be paid extra for the same. 2. However, TMT steel will be measured & paid separately.

S&F 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 the including mild steel wire (annealed) not less than 0.9mm dia or securing with clips all as specified & directed.

pardeep singh marwaha (BID ID -3452952)

M/S J R S CONSTRUCTION (BID ID -3451104)

GANDOTRA CONSTRUCTION CO (BID ID -3447407)

M/S CANTILEVER ENGINEERS (BID ID -3453588)

M/S DUGGAL CONSTRUCTION CO (BID ID -3453119)

M/S HIMANSHU BUILDERS (BID ID -3447778)