Fabrication and erection of steel truss, purlins, tie runners and providing AC sheet roofing

Fabrication and erection of steel truss, purlins, tie runners and providing AC sheet roofing and reconstruction of Gable wall portions above the Vacuum filter, clarifier, lime and sulphur stations

Dismantling of reinforced cement concrete and brick walls by engaging electric concrete breaker. Dismantled particles/debris are to be removed from the work site and conveyed to scrap yard. .Necessary power supply will be given from the mills at free of cost.

Brick work in cement mortar 1:5 (one cement & five M sand) using best country bricks of size 8 ¾” x 4 ¼” x 2 ¼” including cost of bricks, m sand, cement and all labour charges finishing and curing etc. complete complying with the standard specifications & as directed by the departmental engineers.

Plastering in cement mortar 1:5 (one cement & five p sand) 12mm thick including finishing curing etc. complete complying with standard specifications & as directed by the departmental engineers.

Providing scaffolding arrangements to the required height up to 22m from the existing floor level by using casurina poles 75mm dia for both vertical and horizontal bracing or suitable steel pipes and providing working platforms by country wood planks suitable for reconstruction of brick wall ,base plate fixing on concrete columns and plastering works including cost of all scaffolding materials and labour charges.The contractor should bring all materials in his own cost.

Labour charges for fabrication of steel truss, purlins,horizontal rafters,tie runnrers ,other structural members to the required size and erection of structural steel on roof above concrete columns and side gable walls to form roofing suitable to the existing building.Necessary terric ,all lifting tools , equipments and 100 mt capacity hydrocrane should bring by the contracter in his own cost to erect roof truss 4 NOS for the required period.Necessary steel angles plates , bolts for joining purlins with truss and base plate . welding rods gas cylinders and power supply will be issued from the mills on free of cost.

Labour charge for fixing of asbestos cement corrugated sheets of 6mm thick(A.C.SHEETS) including cost of J Bolt or L bolt. Bitumen washer and cup washer and white washing one coat on inner side. AC Sheets only will be issued from the mills on free of cost. Necessary J OR L bolts,bitumen and cup washers and white cement should bring by the contractor in his own cost.All necessary safety belt helmet and safety equipments shall be the scope of contractor. The total area of sheet laid will be measured for payment purposes.

Labour charge for fixing of asbestos cement corrugated ridges including cost of J Bolt or L bolt. Bitumen washer and cup washer and white washing one coat on inner side. AC Ridges only will be issued from the mills on free of cost. Necessary J OR L bolts,bitumen and cup washers and white cement should bring by the contractor in his own cost.All necessary safety belt helmet and safety equipments shall be the scope of contractor.

Labour charge for one coat of Red oxide primer painting for new steel truss,purlins,tie runners, plates ,horizontal rafters including scrapping the surfaces by wire brush before applying primer coat.Necessary red oxide paint and thinner will be issued from the mills on free of cost.All necessary safety belt ,helmet and safety equipments shall be the scope of contractor.

Labour charge for two coat of aluminium painting for new steel truss,purlins,tie runners, plates ,horizontal rafters including scrapping the surfaces by wire brush before applying aluminium coat.Necessary aluminium paint and thinner will be issued from the mills on free of cost.All necessary safety belt ,helmet and safety equipments shall be the scope of contractor.

Providing and laying Reinforced cement concrete 1;2;4 (one cement ,two m sand and four coarse aggregates) using 20 mm size hard broken granite metals including cost of all materials, centering to the required size. compaction and curing. The concrete to be laid on top of RCC columns for new bolt fixing from 17m to 22m height from the floor level of the mills.