Major repairing of Bamnimura SB School under Nalchar Block, Sepahijala District during the year 2026-27

Dimolishing cement concrete manually / by mechanical means including disposal of material with all lifts and upto 50 m lead etc. complete as per direction of the Engineer- in- charge. 14.2.1 Nominal concrete 1:3:6 or richer mix (i/c equivalent design mix)

Dismantling old plaster or pointing, raking out joints, cleaning and preparing the surface for re-plastering or re-pointing including disposal of rubbish to the dumping ground with all leads and lifts etc.complete as per direction of the Engineer- in-charge.

Providing and laying in position cement concrete of specified grade excluding the cost of centering & shuttering. All work up to plinth level : 1:4:8 (1 cement : 4 fine sand : 8 graded well burnt brick aggregate 40 mm. nominal size)

12 mm cement plaster of mix: 12.1.2 In cement mortar 1 : 4 ( 1 cement : 4 fine sand )

Neat cement punning.

Dismantling GS sheet roofing including ridges, hips, valleys, gutters wind ties etc. including dismembering and stacking of serviceable materials and unserviceable materials separately with all lifts and upto a lead of 50 m etc.complete as per direction of the Engineer- in-charge.

Dismantling doors, windows and clerestory windows (steel or wood) shutter including chowkhats, architrave, holdfasts etc. complete and stacking within 50 metres lead : Of area 3 sqm and below.

Providing and layng cement concrete 1:2:4 (1 cement : 4 graded well brunt brick aggregate) flooring finished a floating coat of neat including cement slurry , rounding of edges and strips and cost of glass stips etc. complete.40 mm thick with 20 mm well burnt brick aggregate.

Providing corrugated G.S. sheet roofing including vertical/curved surface fixed with polymer coated J or L hooks, bolts and nuts 8 mm diameter with bitumen and G.I. limpet washers or with G.I. limpet washers filled with white lead and including a coat of approved steel primer and two coats of approved paint on overlapping of sheets complete (up to any pitch in horizontal/ vertical or curved surfaces) excluding the cost of purlins, rafters and trusses and including cutting to size and shape wherever required.0.63mm thick with zinc coating not less than 275gm/m2

Applying priming coat (payment shall be made after submission of test certificate issued by the manufactured). With ready mixed red oxide zinc chroromate primer of approved brand and manufacture on steel galvanised iron steel work.