8209 CLEANING, MARKING, SHIELDING COATING OF STONE WALL, CABLE DRAIN COVER AT VARIOUS DOCK AND ASSOCIATED AREA AT NAVAL DOCKYARD UNDER AGE B/R-I UNDER GE (NW) KUNJALI

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 specified. 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.

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.

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:- For item no 1 to 3 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 aroung 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 equavalent for bonding between old and new surface, including all lifts, shuttering all as required as per site condition and directed by Engineer-in-Charge.

Dismantling wrought or mild steel work of any description.

M&L for Stainless steel decoravtive railings (grade 316), staircase3 (design and pattern as approved made out of SS pipes, SS flats, SS plates etc. Complete with and including necessary welding , buffing/polishing and fixing complete all as specified and directed.

M&L for Stainless steel decoravtive railings chain alloy(grade 316), having 8 mm minimum thickness (design and pattern as approved ) as used to connect two stainless steel post with hooks etc. Complete with and including necessary welding , buffing /polishing and fixing complete all as specified and directed.

M&L for preparation of old surfaces of any description over 10 cm width or girth, applying a coat of synthetic enamel paint of approved colour all as specified and directed.