SPECIAL REPAIR TO ROOF TREATMENT IN BLDG NO P-156, P-162, P-436, P-438, P-447 AND P-443 OFFRS MD ACCN IN ZONE-I AERA UNDER GE(S) JAIPUR AT MIL STN JAIPUR

M&L for PCC 1:2:4 type B-1 using 20 mm graded stone aggregate as in lintels upto 1.5 m clear span, cills, copings, bed plate, plinth courses, roof kerbs or mud stops rounded or chamfered on edges including necessary form work complete all as specified and directed.

M&L for applying bond coat of epoxy bonding agent & cement in 1:1 ratio for bonding old and new concrete on damaged surfaces after applying anticorrosive paint over cleaned rusted steel surface including demolition old RCC surfaces (chajjas, fins, beams , borders etc and applying 30mm thick polymer modified mortar in CM 1:3 including mixing of polymer latex additives for repair of Chajjas fins, border etc complete all as specified and directed. Note :- (i) Cleaning of rusted part of steel and applying anticorrosive paint over it. (ii) Qty of ploymer to be used 15% by weight of the cement or as per manufacturer instruction. (iii) Use of electrical mixer to get the homogeneous dough on bond coat surfaces. (iv) To achieve required thickness repeat this step after 24 hrs as required. (v) Keep the surfaces moist using water fog for 5 to 7 days etc complete all as specified and as directed. (vi) Rate shall be inclusive of all necessary scaffolding for building of height upto two storey. Make :- (i) The epoxy bonding agent shall be Krishna / Dr Fixit / MC Bauchemie / M/s Cemistik / Sika or equivalent as approved by GE. (ii) Polymer latex addictive shall be of Sika / Fosroc / Dr Fixit or equivalent as approved by GE.

M&L for cutting chases in stone masonary/stone concrete block or slab walls, pinning in, making good to facings where required and pointing in cement mortar 1:3 to ends or edges of landings, steps, cills, sunshades, shelves, lintels, etc. and cutting chases for concealed water tubing or concealed conduit wiring, etc., and making good cutting exc 20 cm girth complete all as specified and directed.

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

M&L for walling of squared rubble, regular coursed stone masonry well bonded, bedded and solidly hearted, built in cement mortar 1:6 complete all as specified and directed.

M&L for cutting holes by core cutting machine over stone masonry wall having thickness n.exc 450mm and having 50 to 75mm dia including inserting PVC pipe as required and making good with existing surface with CM 1:4 and cleaning of debris outside MD land complete all as specified and as directed.

S&F mild steel framed work for windows grills such as grills, ladders, gratings etc with ends of bars shouldered and / or riveted or forged into spikes, framed guard bars, barred iron doors / window and similar work conforming to Fe -290 Gde E-165 complete all as specified and directed.

S&F steel work in tubular trusses including special shaped washer etc. complete using ERW or induction butt welded tubes conforming to I. S.1161- 1979 grade St.-240 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 (except sheet) in roof covering/ cladding to wall, fixed with self tapping screws, complete all as specified and directed. Note -Old sheet obtained shall be reused.

M&L for applying fibre reinforced, single component, elastomeric liquid applied water proofing coating in white colour, anti-fungal, anti-algae, resistance to water and ageing, excellent UV resistant having Solar Reflective Index more than 105, with PU hybrid polymers and reinforcing acrylic fibers, elongation greater than 300% and applied in three layer complete all as follow :- (a) Preparation of surface by cleaning and removing loose particles then apply first coat of liquid water proofing after diluting as per manufacture instruction as a primer and allow the surface to dry for minimum 10 to12 hours complete all as specified and directed. (b) Apply second coat of liquid water proofing without dilution on the primed surface and allow time to dry the surface for minimum 10 to12 hours complete all as specified and directed. (c) Apply third coat of liquid water proofing without dilution over the second coat and allow minimum 48 hour complete all as specified and directed. Note : (i) Work shall be carried out by authorised applicator of manufacturer only and contractor will submit MoU with authorised applicator of manufacturer before execution of work. (ii) Material incorported in the work shall be calculated as per site requirement and full quantity of material shall be brought at site before execution of work. (iii) Necessary gurantee for 05 years shall be submitted by the contractor. Make :- Berger-HS Roof Kool & Seal, STP-Shali Urethane (R) BTD Plus, Asian - Smart care Damp Proof Ultra or equivalent make as approved by GE.