CLEANING POINTING AND PROTECTIVE COATINGS IN STONE WALL IN BOAT POOL WET BASIN CRUISER WHARF AND ASSOCIATED AREAS AT NAVAL DOCKYARD UNDER GE (NW) KUNJALI MUMBAI

Amount

Material & labour for gently cleaning the surface of the stone masonry and piers in building/jetty/dock above sea water level with specialized water misting techniques employing air water jet using a fine nozzle sprinkling system calibrated to spray a fine mist along the stone surface, without over wetting, followed up by gentle brushing with soft nylon brushes as directed. Gentle surface cleaning may include using water misting and mild pH balanced surfactants as specified for indicated areas to remove surface dirt, grit, surface accretions, lime wash etc by means of water misting and pH balanced surfactants and cleaning as directed by Engineer - in- Charge. Note:-1- Quoted rate shall be inclusive of removing vegetation,oil,grease, sea growth on surface of stone wall surfaces. 2- Rate should be inclusive of necessary arranegemnt of scaffolding or otherwise while carrying out work above sea water level.If there is requirement of small private boat for carrying out the work, same should be arranged by contractor. 3- Necessary safety precautions as per safety norms like helmet, shoes, life jacket must be ensured by contractor with in the quoted rates.

Material & labour for raking out cement pointing or any other hard material used and careful repointing and repairs to be carried on the damaged pointing of stone masonary in jetty/dock above sea water level by using RENDROC SP 40 in FOSROC or equivalent in Sika and others suitable for marine environment and submerged condition. The contractor to ensure use of masking tape and sharp specialized spatula and tools to ensure clear lines and high level of workmanship on site all as specified and as directed by Engineer-in-Charge. Note:-1- Quoted rate shall be inclusive of removing vegetation,oil,grease,sea growth on surface of stone wall surfaces if observed again after cleaning under item no 1 2- Rate should be inclusive of necessary arrangemnt of scaffolding or otherwise while carrying out work above sea water level. If there is requirement of small private boat for carrying out the work, same should be arranged by contractor. 3- Necessary safety precautions as per safety norms like helmet, shoes, life jacket must be ensured by contractor with in the quoted rates. 4- Work should be executed as per manufacturer instructions and in presence of company rep.

Material & labour for preparation of stone masonary surface and cleaning all loose laitance, algae fungal, foreign material and application of transperent protective paint Nitocote SN 522(transparent) in Fosroc or equivalent in Sika and others with similar properties suitable for stone masonary in marine and submerged condition as per the manufactures instruction all as specified & directed. Note:-1- Quoted rate shall be inclusive of removing vegetation, sea growth on surface of stone wall surfaces. 2- Rate should be inclusive of necessary arranegemnt of scaffolding or otherwise while carrying out work above sea water level.If there is requirement of small private boat for carrying out the work, same should be arranged by contractor. 3- Necessary safety precautions as per safety norms like helmet, shoes, life jacket must be ensured by contractor with in the quoted rates. 4- Work should be executed as per manufacturer instructions and in presence of company rep.

Supply and applying microconcrete of Fosroc, Dr Fixit, or equivalent around edges of Dock walls, jetties, corners, grooves, alters, steps, piers and other marine structure after complete cleaning of concrete/stone surface and applying epoxy coat as bonding agent Fosroc's Nitobond or equivalent for bonding between old and new surface, including all lifts, shuttering all as required as per site condition and directed by Engineer-in-Charge.

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