SPECIAL REPAIR TO BUILDING NO PA-36 AND PA-37 OF NEW FLOTILLA NIWAS, NAVAL DOCKYARD (MBI)

RELIEVING STRUCTURAL MEMBERS M&L for Relieving Structural members such as column, beam and slabs of their superimposed loads partially or fully by provision of adjustable steel props, frames etc. including necesssory scafolding from work Complete all as specified and directed by Engineer-in-Charge. ( brickwork, if required, shall be paid separately.)

M&L for chipping existing loose, damaged Concrete from RCC members of all affected RCC Columns, Beams, Slabs and Chajjas on External and internal facades, etc beyond main reinforcement (if required in the opinion of the Consultant), carefully with isel and hammer Providing and applying ‘Rusticide SS’ Rust passivator or equivalent as specified in the Brand Names to existing reinforcement bars Including wire brushing of reinforcement , cleaning washing of concrete etc complete as directed.Providing and applying two coats of rust preventor slurry made out of “Polyalk Fixoprime” or equivalent as specified in the Brand Names and cement in proportion 1:1.5 to existing reinforcement .bars as directed complete. Providing and applying bonding coat of slurry made out of “Polyalk EP” or equivalent as specified in the Brand Names and cement in proportion 1:1 to concrete and reinforcement substrates complete as directedProviding and applying “Polyalk EP” or equivalent as specified in the Brand Names and providing Ready mix Polymer modified cement mortar of minimum M-40 grade ) to RCC members Including Hand packing, curing and making the surface rough for plastering.

M&L for Jacketting the existing column of size as shown in the drawing by removing the concrete cover to reinforcement, by chipping or other suitable means to expose the reinforcement of existing column in order to make available the same for binding the extra reinforcement as shown in the drawing and also removal of rust, scales of the reinforcement in order to provide and apply approved make of epoxy resin to get proper bond with newly laid M-25 grade concrete. The aforesaid concrete shall be laid by the sides of the existing column with uniform thickness of 115 mm or as specified, for jacketing purposes thereby increasing the sectional dimensions by 150 mm or as specified (excluding finishing) at any height with requisite shuttering, centring, scaffolding, proping, repairing the existing surface as specified and also removal of debris, curing etc. complete as per design and drawing etc. directed. (NOTE :- Reinforcement shall be measured and paid separately under respective item of schedule ). The Rates of this item is deemed to be inclusive of brick work including demolition of brick as per the direction of Engineer-in- Charge)

Excavation for foundations, substructures, basements, tanks, sumps,walls, chambers, manholes, trenches, poles, pits & general buildingworks in all types of soils, vegetable earth, soft murum, running sand, shingle, turf clay, loam, peat, ash, shale, slag, chalk,garbage, muddy/ marshy/ slushy soil, marine clay, reclaimed land etc.for depths/lifts upto 1.5M measured from the ground level, including dressing/ trimming the sides, leveling and ramming of bottoms,manual dewatering, removing rank vegetation, backfilling in layers notmore than 200mm thickness, watering, consolidating, compacting to achieve not less then 97% Modified Proctor density conforming torelevant IS, stacking the selected material in measurable heaps forfuture use within owners space or disposing within an initial lead of 150m as directed, loading, unloading, leveling excludingshoring, strutting etc. complete as directed by Engineer in Charge.Note:1) The rate includes the handling/supporting the existing utilities such as cables, drains, pipes,water mains etc.

M&L for dry stone Rubble Soling with average 230 mm size hard stone set in regular lines, handpacked and interstices thoroughly filled with small chips including filling in with good quality murum brought from outside, compacting with iron rammers, watering, sand spreading 12 mm thk. layer of grit on top etc complete as directed by Engineer In Charge.

M&L for plain cement concrete of specified grade with trap/granite/quartzite/gneiss metal mixing in concrete mixer including bailing out water, compacting, finishing surface, curing and including the cost of centering and shuttering at all level :Nominal Mix of 1:1.5:3 (1 cement : 1.5 coarse sand : 3 graded stone aggregate 20 mm nominal size) complete all as specified and directed.

M&L for Filling in plinth, floors, trenches, pits with approved excavated materials, murum / good earth in layers including breaking of clods, watering, consolidating each layer in filled up area by rolling and compacting with roller/ plate compactor as required to achieve not less than 97% modified proctor density conforming to relevant IS etc. complete as directed by Engineer In charge.

M&L for plain cement concrete of specified grade cement with /granite/quartzite/gneiss metal mixing in concrete mixer including bailing out water,compacting, finishing surface, curing and including the cost of centering and shuttering at all level Nominal Mix of 1:1:2 (1 cement OPC: 1 coarse sand : 2graded stone aggregate 20 mm nominal size complete all as specified and directed.

M& L for FILLING AND REINSTATING OF SEPARATION CRACKS Opening the Separation Cracks at the Junction of RCC and Masonry where ever directed and instructed into ‘’V’’ Grooves 2’’ to 3’’ from the either side of the cracks by carefully marking the areas to be opened up using a cutting machine and skillfully /carefully chiseling with a well sharpened chisel and hammer as directed including wire brushing and washing of concrete substrata and masonry walls with water jet to the surfaces thus prepared to the entire satisfaction of the consultant as instructed and directed.

M&L for Moistening the Cracks, Providing and applying priming/bonding coat of slurry made out of “Polyalk EP”and cement (or equivalent as specified in the List of Brand names) in proportion 1:1 to surfaces prepared as instructed and directed. Filling the Cracks /Grooves by Providing and applying “Polyalk EP” Polymer modified cement mortar (or equivalent as specified in the List of Brand names) in Proportion of 1: 5: 15 (Polyalk EP: Cement: Graded sand/quartz sand) on the prepared surfaces and finishing it in level with the existing plaster Including Hand packing, curing and making the surface similar to the external plastering using wooden floats/punch etc. complete as per specified and directed.