MISC EXTERNAL REPAIRS TO BUILDINGS UNDER AGE B/R-I OF GE ND VISAKHAPATNAM

Demolition of reinforced cement concrete in roofs, floors (other than ground floors), beams, staircases, Landing, chajjas, facias and similar suspended work at any height upto 11th floor including removal of debris out side MD land complete all as directed.

M&L for Non-shrink cementitious Micro Concrete using Rendroc RG manufactured by M/s Fosroc Chemicals India (P) Ltd or its equivalent as specified modified with 12mm graded, clean saturated surface dry crusted stone aggregate in the ratio as per manufacturer's instructions, laid in average thickness of 80 to 100mm in columns, beams and similar structural members including use and waste of water tight formwork to facilitate pouring of micro concrete complete all as permanufacturer's instructions including providing double scaffolding and safety measures as required and specified. (Measurement shall be considered for circumference at center line of core thickness) including demolition of concrete in roofs, floors (other than ground floors), beams, staircases, Landing, chajjas and similar suspended work at any height upto 11th floor.

M & L for chipping of spalled and loose concrete and cleaning rust from reinforcement by sand brushing, scrubing down concrete surfaces with wire brushes cleaning with water allowed to dry applying a layer of zinc Rich epoxy primer as antirust on all exposed reinforcement followed by a layer of bonding coat of a layer of Epoxy and NITOBOND adehessive M/s Fosroc Chemicals India (P) Ltd or its equivalent as specified on complete exposed surfaces of concrete and provide guniting in Two layers, thickness of gunite not exc 25 mm (average thickness) using cement mortar 1 :3 mixed with and including polycrete admixture @ 2% by wight of Cement or as per anufactures instructions and finally applying cement plaster over gunite surfaces of required thickness to give an even, uniform and smooth finish conforming to proper Geometrics in cement mortar 1:4 to match with the existing surface as in sides and soffits of slabs, chajjas, fins, facias, parapets, columns and beams etc complete including necessary scaffolding, shuttering necessary chases to brick work or RCC members at any height upto 11th floor buildings including removing of small trees, shrubs, etc all as specified.

M & L for chipping of spalled and loose concrete and cleaning rust from reinforcement by sand brushing, scrubing down concrete surfaces with wire brushes cleaning with water allowed to dry applying a layer of zinc Rich epoxy primer as antirust on all exposed reinforcement followed by a layer of bonding coat of a layer of Epoxy and NITOBOND adehessive M/s Fosroc Chemicals India (P) Ltd or its equivalent as specified on complete exposed surfaces of concrete and provide guniting in Two layers over and including steel welded mesh of 2mm dia wire and total aperture 75mm, thickness of gunite exc 25mm and not exc 50mm (average thickness) using cement mortar 1 :3 mixed with and including polycrete admixture @ 2% by wight of Cement or as per anufactures instructions and finally applying cement plaster over gunite surfaces of required thickness to give an even, uniform and smooth finish conforming to proper Geometrics in cement mortar 1:4 to match with the existing surface as in sides and soffits of slabs, chajjas, fins, facias, parapets, columns and beams etc complete including necessary scaffolding, shuttering necessary chases to brick work or RCC members at any height upto 11th floor buildings including removing of small trees, shrubs, etc all as specified. (Note: Welded steel mesh to be welded with the existing reinforcement. The cost of welded mesh is deemed to be included in the quoted rate complete all as specified and directed.)

M & L for Providing precast cement concrete type B1, 1:2:4 using 20mm graded aggreage as in landings, cover slabs (for man holes etc.) chullah hoods, chajjas, water troughs, shelves and similar articles with plain faces for any height upto 11th floor indcluding demolition of old reinforcment concrete work complete all as specified and as directed.

M & L for High Strength Corrosion Resistant Deformed TMT Bars of 10mm dia and over, as in reinforcement, cut to length, bent to shape required including cranking, bending spirally for hooping, hooking ends and binding with annealed mild steel wire not less than 0.9mm dia or securing with clips or welded for any height upto 11th floor complete all as specified and as directed.

M & L for High Strength Corrosion Resistant Deformed TMT Bars of 6 to 8mm dia, as in reinforcement, cut to length, bent to shape required including cranking, bending spirally for hooping, hooking ends and binding with annealed mild steel wire not less than 0.9mm dia or securing with clips or welded for any height upto 11th floor complete all as specified and as directed.

M & L for brick work with fly ash bricks, straight or curved on plan exc 6m mean radius built in CM 1:6 using modular bricks including demolition of old brick work for any height upto 11th floor complete all as specified and directed.

Taking down cement plaster on brick work or stone masonry walls, etc including raking out joints, hacking for key, scrubbing down with water, etc for any height upto 11th floor complete all as specified and directed.

M & L for rendering 15mm thick in CM 1:6 on fair faces of brick work or concrete surfaces finished even and smooth with out using extra cement for any height upto 11th floor complete all as specified and directed.