Improvement works at Lighthouse tower and Allied structures at Alappuzha Lighthouse

Repairs to plaster of thickness 12 mm to 20 mm in patches of area 2.5 sq. meters and under, including cutting the patch in proper shape, raking out joints and preparing and plastering the surface of the walls complete, including disposal of rubbish to the dumping ground within 50 metres lead,with cement mortar 1:4 .including supply of all materials, labours ,scaffolding tools & plantsetc. complete.

Repair works to cracks in plastering / masonary / R.C.C. works: Providing and applying crystalline mortar by mixing in the ratio of 4.5 : 1 (4.5 parts 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.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.including supply of all materials, labours ,scaffolding tools & plantsetc. complete.

Replacing broken glass panes of window shutters with new plain/pin headed glass panes of 4 mm thick after removing carefully the broken pieces, providing new teak wood beadings using nails including supply of all materials, labour, tools & plants, scaffolding etc. complete.

Replacing broken fittings of doors, windows with new fittings of approved quality after removing carefully the damaged ones from position, including supply of all materials, labour, tools & plants etc. complete.-Providing and fixing stainless steel butt hinges 100x60x2.5 mm with necessary stainless steel screws etc. as directed including cost of all materials, labour, tools & plants etc. complete .

Providing and fixing stainless steel butt hinges 75x50x2.5 mm with necessary stainless steel screws etc. as directed including cost of all materials, labour, tools & plants etc. complete .

Providing and fixing aluminium handles, ISI marked, anodised (anodiccoating not less than grade AC 10 as per IS : 1868) transparent or dyed to required colour or shade, with necessary screws etc. complete : 100 mm

Providing and fixing bright finished brass handles with screws etc. complete: 125 mm including cost of all materials, labour, tools & plants etc. complete .

Providing and fixing aluminium sliding door bolts, ISI marked anodised(anodic coating not less than grade AC 10 as per IS : 1868), transparent or dyed to required colour or shade, with nuts and screws etc. complete : 300x16 mm including cost of all materials, labour, tools & plants etc. complete .

Providing and fixing bright finished brass door latch with necessaryscrews etc. complete : 300x16x5 mm including cost of all materials, labour, tools & plants etc. complete .

Providing and fixing aluminium tower bolts, ISI marked, anodised (anodic coating not less than grade AC 10 as per IS : 1868 ) transparent or dyed to required colour or shade, with necessary screws etc. complete : 200x10 mm.including cost of all materials, labour, tools & plants etc. complete .