SPECIAL REPAIRS ADDITION AND ALTERATION TO FIRE STATION BUILDING NO P-65 NSTL UNDER AGE I RnD NSTL VISAKHAPATNAM

Dismantling tile work in floors and roofs laid in cement mortar including stacking material within 50 metres lead. For thickness of tiles 10 mm to 25 mm complete all as specified and directed.

M&L for 8 to 9 mm thick Vitrified floor tiles in 600mmx600 mm size with water absorption less than 0.08% and conforming to IS: 15622, of approved make, in all colours and shades, laid over and including 20mm thick screed bed in cement mortar 1:4 (1 cement : 4 coarse sand), jointing with grey cement slurry @ 3.3 kg/ sqm including grouting the joints with white cement and matching pigments etc complete all as specified and directed.

M&L for 8 to 9 mm thick Vitrified tiles in different sizes, with water absorption less than 0.08 % and conforming to I.S. 15622, of approved make, in all colours & shade, as in skirting, riser of steps, laid over and including 12 mm thick plaster in cement mortar 1:3 (1 cement: 3 coarse sand), jointing with grey cement slurry @ 3.3 kg/ sqm including grouting the joint with white cement & matching pigments etc. complete. Size of Tile 600x600 mm

Dismantling stone slab flooring laid in cement mortar including stacking of serviceable material and disposal of unserviceable material within 50 metres lead complete all as specified and directed.

M&L for 20-25 mm thick Kota stone slab flooring laid over and including 20 mm thick screed bed in cement mortar 1:3 (1 cement : 3 coarse sand), laid and jointed with grey cement slurry mixed with pigment to match the shade of the slab, including rubbing and polishing complete all as specified and directed.

M&L for 18 to 20 mm thick Kota stone slabs as in risers of steps, skirting, dado and pillars laid over and including 12 mm thick plaster cement mortar 1:3 (1 cement: 3 coarse sand) and jointed with grey cement slurry mixed with pigment to match the shade of the slabs, including rubbing and polishing complete all as specified and directed.

M&L for Water proofing treatment with PU based treatment as under:- (a) Taking down existing roof treatment of any description and removing the debris to a distance exceedind 500m and depositing outside MD land complete all as specified and directed. (b) Cleaning the surface areas thoroughly so that free of all contaminants like dirt and laitance & to remove all the loose materials b various mechanically means. Removal of all surface imperfections, protrusions, loose concrete & filling of cracks using shalicrete polymer modified mortar or equivalent in sika FOSROC in the ratio shalicrete : cement : sand (1: 2:5) (c) Providing and making vata at the junction of the walls and the slabs using PMC mortar in the ratio of shellcrete : Cement : sand (1:2:5) using shaliSBR Latex as the bond coat or equivalent in Sika, FOSROC. (d) Correct all construction joints by grouting with shali Grout IP at 1 apart and opening of joints in "V" cut groove and fill with PMC mortar, using ShaliSBR Latex as the bond coat or equivalent in Sika FOSROC.

M&L for Rendering 15 mm thick on fair faces of brick work or concrete surfaces in cement mortar 1:4 and finished fair and even without using extra cement, including taking down plastering complete all as specified and directed.