REPAIRS TO LEAKAGES SEEPAGES IN CERTAIN BLDGS AT TECH AREA AT AFS THANJAVUR

Amount

Taking out and stripping old tarfelt over roofs, parapets walls of any description in any direction including cement plastering and removing the rubbish etc complete including removing the debris outside MD land complete all as specified and as directed.

M&L PCC padding 1:2:4 type B0 using 12.5mm graded crushed stone aggregate in average thickness 40mm laid over & incl chicken wire mesh 0.6mm dia with apertue 12x12 mm stapled properly with existing surcafe of concerte. Top surface of concrete finished even and fair without using extra cement all as specified and directed. Note:- Water retaining test (Ponding test) shall be carried out after completion of PCC padding for 48 hrs. In case slightest indication of leakages/ seepages is noticed the same shall be rectified by grouting the affected portion at no extra cost. Thereafter ponding test shall be repeated till there is no indication of seepages/ leakages.

M&L applying oil based bitumen primer conforming to IS 3384-1986 at 0.20 kg/Sqm on prepared surface and applying of one coat of blown grade hot bitumen 85/25 conforming to IS 702 @ 1.20 kg / sqm and applying roof treatment with APP modified waterproofing membrane weighing not less than 3kg/sqm, reinforced with non woven polyster matt weighing not less than 160 gm/sqm having softening point not less than 140 degree centigrade, longitudinal tensile strength not less than 650N/Sqm cm, tearing strength of 180N(Minimum), applied by torch-on application including minimum 10 cm over lap and 15 cm end lap and applying of one coat of blown grade hot bitumen 85/25 conforming to IS 702 @ 1.20 kg / sqm over the membrane and then applying solar reflective bituminous aluminium paint for thermal insulation @ 0.10 kg/sqm complete all as specified and directed.

M&L cutting out cracks to V section in existing roofs or terracing cleaning out, wetting, grouting, with cement and sand slurry 1:3 complete all as specified and as directed.

Taking down cement plaster in cement or cement lime mortar on brick or stone walls etc. including raking out joints, hacking for key, scrubbing down with water etc, Including removal of debris outside MD land complete all as specified and as directed.

M&L plastering 15mm thick in CM 1:6 on brick or stone walls to be finished even and smooth (without using extra lime or cement) complete all as specified and as directed.

M & L for Rendering 15mm thick on other than fair faces of brick work or concrete surfaces in C M 1:4 with finished even and smooth (without using extra lime or cement) complete all as specified and as directed.

Demolition of cement concrete in ground floor and paving n.exc. 15cm thickness (below or above ground level) complete all as specified and as directed.

M & L plain cement concrete 1:2:4 type B0, using 12.5mm graded stone aggregate as in under layer to flooring 25mm thick finished rough to receive toping complete all as specified and as directed.

M&L for 75 mm thick PCC 1:3:6 type C1 using 20 mm graded stone aggregate as in plinth protection, paving including finishing the surface even and fair complete all as specified and as directed.

Dismantling of Plain or corrugated steel of any gauge, thickness, including Nainital or similar pattern roof covering complete all as specified and as directed.

S&F pre-colour coated high tensile strength corrugated galvalume sheet roofing with yield strength (550 NPA) prepainted with aluminium (55%) and zinc (45%) alloy coating applied through continous hot dip process having tatal coated thickness (TCT) of 0.50mm with minimum coating mass on both sides @ 150gms/sqm in length and width as per site condition fixed with complete acessories as per manufacturer's instructions through specialist agency and as per profile and shade as approved by GE complete all as specified and as directed.

S&F Pre-painted galvalume aluminum zinc coating GI based Plain sheet roofing with yield strength (550 NPA) prepainted with aluminium (55%) and zinc (45%) alloy coating applied through continous hot dip process having tatal coated thickness (TCT) of 0.50mm with minimum coating mass on both sides @ 150gms/sqm in length and width as per site condition fixed with complete acessories as per manufacturer's instructions complete all as specified and as directed.

S & F 2mm thick plain multicavity poly carbonate sheet (coloured) in roof covering, fixed with and including aluminium fillets at joints and aluminium angles at the end fixed with self drilled screws and standard fittings, fixtures and accessories complete all as specified and as per manufactures instructions complete all as specified and as directed.

M&L 2mm thick Fibre glass reinforced translucent corrugated sheeting with two corrugations side lap fixed with coach screw and washer in roof, wall etc. complete all as specified and as directed.

M&L Surface treatment by removing and chipping off dilapated concrete chunks which have seperated from the rebars of likely to be seperated at above ground level concrete by using low frequency impact hammer without damaging the sound RCC surface or chisel ,wire brush etc & cleaning the surfaces by wire brushing /compressed air to demove dust and laitance etc to receive further treatment and disposing out all unservicable material to a distance n exc 50 mtr complete all as specified and as directed.

M&L for cleaning of wall tile, floor tile and joints of existing flooring of bathroom/ toliet of any description and in any condition and arresting leakeges and seepage without breaking of tile by applying grouting of waterproofing sealing seepage arresting compound as per manufactures instruction complete all as specified and as directed.

M&L for 12mm dia drilling holes up to depth 100mm @ distance of about 30 cm c/c in masonry surface ,fixing 12mm PVC nipple with ready to use mortar for plugging water leakage instantly and applying polymer grouting with 50 kg cement with 1 Kg of water resistant SBR latex and 200 grams of Expanding grout conbextra 100 or equivalent with Mechanical Air compresser with about 5 Kgf pressure ,and plugging back the holes with ready to use mortar after completion of grouting all as specified and directed. (SBR Latex and expanding grout admixture shall be measured and paid separately)

M & L for grouting of all RCC structure with Low viscous in two parts epoxy (Mixed in ratio as specifeid by manufacturer) by using pressure pump by drilling necessary holes of required size at distance of about 30 to 50 cm c/c as required , fixing of PVC Nozzles by quick setting ready made epoxy based plugging putty ,Scaffolding, and pressure grouting with compressor at about 1kg per hole to RCC beams/chajjas/slabs/columns at all heights as per manufactureres instruction complete all as specified and as directed. Note : Two parts Epoxy shall be measured and paid seperately. Make of Low viscous epoxy shall be Notefill of M/s Fosroc/EPCO-KP-250+EPCO -250 of M/s Krishna conchem or equivalent.

M & L applying of epoxy Bonding agent compund (Resin + Hardner) to bond old conrete to new concrete/cement mortar, the ratio of mixing of epoxy shall be as specified by manufacturer. Note : Make of Epoxy compound shall be NitoBond of M/s Fosroc chemicals / EpiBond of Krishna Conchem or equivalent.

M & L applying of Pneumatically applied mix of cement sand mortar in ratio of 1 :3 for 20 mm thickness , shot into the places by compressed air driving force with pneaumatic machineries having pressure gun, complete all as specified and as directed.

M&L rendering 20 mm thick over face of gunited surface of column/beams/slabs in CM 1:4 and finished even and smooth without using extra cement and using epoxy compound 2 % by weight of cement ( IP Net Resin System of M/s Krishna conchem/ Hydroseal of M/s Hariom Polymers or equivalent ) complete all as specified and as directed.

M & L preparation of new plastered/concrete surfaces of walls, providing one or more coats of Birla white wall care putty to achieve smooth surfaces and applying two coats of distemper oil emulsion of approved shade/tint over a coat of compatible priming paint complete all as specified.

M & L applying two coats of exterior grade emulsion weather coat over a coat of primer including preparation of newly plastered surfaces complete all as specified and as directed.

M & L Preparation of old distempered and painted surfaces including washing, rubbing down and stopping by brooming down , scraping down smoke soot, moulds, moss and efflorescent salts and trading oil and greasy spots and applying one coat of distemper oil emulsion on wall surfaces complete all as specified and as directed.

SUPER COOL (BID ID -3329337)

HIGH TECH ENGINEERS AND CO (BID ID -3328907)

SEMBA ELECTRICALS (BID ID -3321698)

Kanns Project Management And Consultancy (BID ID -3320935)