Kolkata Metropolitan Development Authority Tender

Cleaning the concrete surface by removing dirt and debris, marking defective locations and removing loose concrete by careful stripping untill hard surface is exposed, cutting the concrete to regular shape, wire brushing the exposed surface and removing debris from site complete as per direction of the Engineer - in - Charge. In any floor

Cleaning the exposed reinforcement preferably upto full diameter by wire brush, applying two coats of polymer based rust removing compound left for 24 hours, removing the coating and then applying two (2) coats of polymer modified anti corrosive protective coating formulated to inhibit the corrosion of reinforcement as per manufacturer's specification] [Mode of measurement:The affected surface area of reinforcement shall be considered for payment]. In any floor.

Applying epoxy based reactive joining agent for joining the old concrete with fresh concrete to be applied within manufacturer's specified time as per manufacturers specification. (0.4 Kg / m² of concrete surface). Note: Applicable only when the full diameter of reinforcement steel is exposed. In any floor

Applying 2 coats of bonding agent with synthetic multi functional rubber emulsion having adhesive and water proofing properties by mixing with water in proportion (1 bonding agent : 4 water : 6 cement) as per Manufacturer's specification. In any floor

Removing corroded worn out portion of reinforcement (when the area of bar is damaged by more than 25%) by cutting and replacing the same by a new plain round bar of requisite diameter by binding with required lap / welding with old bar, including cost of reinforcement, complete in all respect including removing unserviceable materials from site as per direction of the Engineer - in - charge. Note : Payment on weight (Kg.) of new reinforcement.a) All floors.

Supplying and application of chemical for post Installed rebar connection by using ETA approved for seismic criteria In rebar connection, Including drill/ng hole to the required depth by rotary hammer drill, cleonlng with brush & jet of clean air, /ill/ng chemical usIng serrated noule to eliminate mIxIng error and in a voldless manner IncludIng charges for all tools & plants. Application to be designed for post· Installed rebars as per ECZ/TR023 or relevant tested of rebar fixing whIch should be furnished by manufacturer. The installation and Injection process should and the setting instructions should be strIctly followed as per manufacturer's specl/icatlons as approved by EICprior to drlll/ng along with post· Installed rebar embedment design report. The existing concrete member should be scanned using rebar scanner to avoid hitting existing reinforcement in concrete during drilling. Notes: 1)This rate is excluding the cost of scaffolding. 2)This work should not be excuted without specific permission of Superintending Engineerof the respective circle and Injection process should be executed in the presence of officer not below the rank of Assistant Engineer to supervise the work minutely. 3) Rebar grouting Is specifically required for extension and strengthening purpose of old or existing RCCstructural members with new RCCstructural members through rebar fixing chemical Item without breaking beam, coloumn, roof slab, lintel, cellina etc. i) Cost of rebar with rebar chemical for 16 mm dia per cm of depth

Cement concrete (1:1.5:3) with graded stone chips 5.6 mm size with hexagonal square mesh wire netting, I.R.C. fabric mesh or X.P. M. fitted and fixed after tying the existing reinforcement on concrete without distributing the same and with proper scarping and cleaning the reinforcement and disturbed concrete with wire brush etc. after applying a coat of cement including the cost of wire netting I.R.C or X. P. M. & cost of all handling and scaffolding complete as per direction of Engineer-in -charge. a) 37.5mm thick In any floor

Plaster (to wall, floor, ceiling etc.) with sand and cement mortar including rounding off or chamfering corners as directed and raking out joints including throating, nosing and drip course, scaffolding/staging where necessary (Ground floor).[Excluding cost of chipping over concrete surface] (i) With 1:4 cement mortar (a) 15 mm thick plaster (i) At 1st floor.

(ii) At 2nd floor.

(ii) With 1:6 cement mortar (b) 20 mm thick plaster (i) At 1st floor.

(ii) At 2nd floor.

Artificial stone in floor, dado, staircase etc with cement concrete (1:2:4) with stone chips, laid in panels as directed with topping made with ordinary or white cement (as necessary) and marble dust in proportion (1:2) including smooth finishing and rounding off corners including raking out joints or roughening of concrete surface and application of cement slurry before flooring works using cement @ 1.75 kg/sq.m all complete including all materials and labour. In ground floor. 3 mm. thick topping (High polishing grinding on this item is not permitted with ordinary cement). Using grey cement (i) 35 mm. thick (a) At 1st floor

c) At 2nd floor.

Removal of rubbish,earth etc. from the working site and disposal of the same beyond the compound, in conformity with the Municipal / Corporation Rules for such disposal, loading into truck and cleaning the site in all respect as per direction of Engineer in charge.

Add GST @ 18% on Total amount over item No. 1 to 12, i.e. Rs115590.00

Add Labour Welfare Cess @ 1% on Total amount over item No. 1 to 13, Rs. 136397.00