GE/KHU-32/2026-27 SPL REPAIR TO BLDG NO T-113 IN THE AOR OF AGE B/R-II UNDER GE KHUMBATHANG

Racking out of sealing compound from existing joints of dimensions forming contraction/dummy/construction joints 15 to 25 mm wide including cleaning of edges and joint with brush and finally fanning with compressed air to make joints free from all loose material complete all as specified. The deteriorated edges of concrete joints shall be made good to true line with provisions of polymer concrete.Top 10 mm (minimum above back up rod), filled with polysulphide or polyurethane sealant and priming the sides with primer provision of closed cell polyethelene back up rod of suitable dia and applying masking tape on edges of joint to prevent accidental spillage of sealant on top surface and to give a neat finishing to the sealant and removing the masking tape after sealant is applied complete all as specified and as directed by Engineer-in-charge. Make M/s Choksey Chemicals Pvt Ltd,FOSROC INDIA, M/s Bostic India Pvt Ltd.

M&L for surface cleaning by mopping scrubbing, surface abrasion, removal of dust by vaccum cleaner complete all as specified and directed by Engineer-in-charge

M&L for priming a coat of mix of resin & handner (in 2:1 ratio by volume) of thickness not less than 200 micron @ 5 Sqm/Ltr (below Screeding for epoxy Coating) which penetrate into concrete to form a adhesive bond using stiff crush or roller complete all as per manufacturers instructions and directed by engineer -in-charge

M&L for 4 mm thick screeding by milled trowelled system with mortar of material specially treated aggregate in resin matrix For maximum strength protection complete all as per manufacturer's instructions and directed by Engineer-in-charge

M&L for 0.8 mm thick chemical resistant coloured pure epoxy self levelling topping low viscous, free flowing composition applied by trowel or sqeege,decorated by spike roller to dislodge air bubbles complete all as per manufacturer's instructions and directed by Engineer-in-charge

M&L for applying 500 micron thick self levelling top coat as mix of Resi, Hardner, Filler and Pigment in ratio of 1.0:0.6:1.85:0.1 by weightile 4.79 kg Resin base 2.83 kg Hardner: 8.88 kg Filler: 0.5 kg Pigment). The mixing to be done correctly homogeneous with an electric variable speed mixer. The layer to be de aerated by spike roller to dislodge air pockets as in desired shade complete all as per manufacturer's instructions and directed by Engineer-in-Charge

M&L for floor patch repair by floorcreteja mis of 20 kg content resin hardner and aggregates) complete all as manufacturer's instructions and directed by Engineer-in-charge. (A mix of 20 kg floorcrere will cover 1 sqm arra having 10 mm Thickness)

M&L for surface preparation and polyurethane based two component yellow/white marking for demarkation over &including a coat of epoxy resin based primer complete all as specified & directed by Engineer-in-charge.

Dismantling plain or corrugated steel sheeting, any gauge, thickness including Nanital patterns roof covering. complete all as specified and directed.

S&F Pre- painted galvalume aluminum 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 as specified complete all as specified and directed.