Repair and Maintenance of Lighthouse Tower and allied structure at Mangrol Lighthouse Station

Demolition of Masonry work in Cement Mortar manually/by mechanical means including stacking of serviceable materials and disposal of unserviceable materials with in a lead of 50.0 metre or more including the cost of all labours,materials,tools & plants,lead & lift,transportation etc. complete as per instruction and direction of Engineer-In-Charge.

Clearing grass and removal of the rubbish up to a distance of 50 m outside the periphery of the area cleared etc complete as per instruction and direction of Engineer-In-Charge.

Dismantling & Taking out damaged doors,window,CB and clerestory windows,shutters including chowkhats/frames,glass , architrave, holdfast and stacking within 50 metres lead including cost of all materials,labours,tools ,plants, and all other charges etc complete & as per instruction and direction of Engineer-In-Charge.

Taking out existing wooden door /window shutter,repar by cutting,painting etc and refixing of repaired door & window shutters to existing door/window frames, including replacement of hinges with screws ,etc as required,all complete as per the direction of Engineer-In-Charge .(measurement of each means one of door/window including door/window booth shutters)

Replacement of old broken glass panels(including Teakwood beading) with new 3.5/4 mm thk frosted /plane window glass panes fixed with clay,pins etc including removing/disposing of old crack/damaged window glass up to all specified heights ,all as directed and all as per standard specification, including cost of all materials,labours ,tools & plants,scafolding, ,transportation (including lead & lif) etc.complete as per Instruction and direction of Engineer-In-Charge.

Providing & fixing Anodized aluminium section(approved Heavy 1rst quality , brand & colour ) sliding/openable /fixed window - (of section 60 mm X 30 mm / 40 mm X 20 / 65 x 100 mm as applicable /approved section as per requirement ) with 5 mm or more tinted glass for window/Ventilaor opening including all fixtures and fittings, tools, plants, labour, material, transportation ,lead ,lift etc. as per instructions & direction of Engineer in-charge.

Providing and applying crystalline mortar by mixing in the ratio of 4.5 : 1 (4.5parts crystalline mortar : 1 part water) for the treatment of faulty construction joints, cracks, tie rod holes and spalled & honeycombed surface of RCC underground structures like basement, water tanks, bridge deck etc. to ensure water tightness. The crystallie mortar shall conform to the EN 1504-3 having compressive strength Class R4 ≥45 MPa and adhesive bond strength Class R3 ≥1.5 MPa. The work shall be carried out all complete as per specification and the direction of the engineer-in-charge. The product performance shall carry guarantee for 10 years against any leakage.22.25.1 For sealing cracks and faulty construction joints, routed out/making U-shape groove size 25x25 mm and then primed the area with integral crystalline slurry @0.05 kg/running metre and while the surface is tacky filled the groove upto surface with crystalline mortar @1.50 kg/running metre. Once crystalline mortar is touch dry then finally applied two coats of integral crystalline slurry @0.05 kg/running metre per coat.etc complete as per instruction and direction of Engineer-In-Charge.

Providing & fixing (for LH Tower ) outside work )double scaffolding system (cup lock type) on the exterior side,up to all height made with 40 mm dia M.S tube 1.5 m centre to centre horizontal & vertical tubes joining with cup & lock system with M.S tubes,M.S tube challies,M.S clamps and M.S staircase system in the scaffolding for working platform etc and maintaining it in a serviceable condition for the required duration as approved and removing it there after.The scaffolding system shall be stiffened with bracings,runners,connection with the building etc. wherever required for inspection of work at required locations with essential safety features for the workmen etc. complete as per directions and approved of Engineer-In-Charge.The elevation area of the scaffolding shall be measured for payment purpose.The payment will be made once irrespective of duration of scaffolding.The item also includes labour ,material,transportation,lead & lift up to required height of Lighthouse Tower.(Note: This item to be used for maintenance work judicially,necessary deduction for scaffolding in the existing item to be done )

Dismantling and removing old /damage plaster raking out joints and clearing the surface for plaster/concrete including disposal of rubbish to the dumping ground within 50 metres lead.etc complete including cost of all materials,labours,tools,plants and all other charges for all heights of LH Tower and as per instruction and direction of Engineer-In-Charge.

Chipping of unsound / weak concrete material from slabs, beams, columns etc. with manual Chisel and / or by standard power driven percussion type or of approved make including tapering of all edges, making square shoulders of cavities including cleaning the exposed concrete surface and reinforcement with wire brushes etc. and disposal of debris for all lead and lifts all complete as per direction of Engineer-In-Charge