Replacement of existing Faraday Cage fencing in MTRF building at IGCAR, Kalpakkam.

Dismantling Chain link fencing including strengthening wires, stacking/disposing the material within 50 metres lead complete all as directed by the Engineer-in-Charge.

Providing and fixing GI fencing made with weld mesh of hot-dip galvanized Iron wire mesh of 3 mm thickness with Hot-dip zinc coating of minimum 270 GSM, of mesh size of 12.5 x 12.5 mm. The weld mesh fencing shall be completely fabricated to the required/approved sizes at factory level including cutting, weaving, edge binding, stretching, coating, and brought to site in ready-to-fix condition and no fabrication or welding of fencing panels shall be permitted at site. The fencing shall be erected true to line, level, and plumb, properly tensioned and fixed on the existing structural members at site using non-corrosive fixtures such as stainless steel clamps, stainless steel bolts and nuts, and coated GI binding wires. The rate shall include supply, fabrication, transportation, fixing with non-corrosive fixtures, labour, tools, tackles, and all works complete as directed by the Engineer-in-Charge.

Providing, supplying, cutting, bending to shape, welding, fabricating, hoisting, placing and fixing in position structural steel members like MS structural embedment’s/pipe and sleeves/penetration etc. using MS angles, channels, I-sections, plates, tees, flats, rounds, sag rod, square sections etc. including chamfering and rounding off the edges, applying a coat of Red lead paint primer / Zinc chromate primer of approved make and 2 coats of flat oil paint / synthetic enamel paint of approved colour and make, scaffolding and staging required for fabrication as well as erection complete all as per specifications, drawings and as directed by the Engineer-in-charge. Note: Lifting device arrangements if any required also arranged by the contractor at his own cost.

Providing and applying at all levels Two coats of Polyuerthane paint on steel surface and other required internal surface at all levels with Apcothane CF 675 PU 240 Nickel Grey paint of ‘Asian’ or approved equivalent brand, colour and manufacturer, to give an even shade including one under coat of suitable Epoxy/PU primer, preparation of the surfaces complete all as per specification and as directed by the Engineer-in-Charge

Providing and fixing double Tubular scaffolding system using H-Frames / APS system or (cup lock type) on the exterior side made with 40mm dia M.S. tube 1.5m centre to centre horizontal and vertical tubes joining with cup and 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 thereafter. The scaffolding system shall be stiffened with bracings, runners, connection with building etc. wherever required for inspection of work at required locations with essential safety features for the workmen etc. complete as per directions and as approved by the Engineer -in-Charge. Note : 1. The elevation area of the scaffolding shall be measured for payment purposes. 2. The payment shall be made once irrespective of duration of scaffolding. 3. The scaffolding system drawing shall be got approved by Engineer-in-Charge. 4. The contractor has to observe all safety procedure while working on heights as per I.S. 3696 (Part-I) (Safety Code for scaffolds). 5. Screen of suitable material shall be provided to the full height of scaffolding and securely tied to protect falling objects coming out during the work is in progress. 6. Necessary aluminium / M.S. ladder shall be provided at the cost of the contractor, to the full height of scaffolding at required location around the building to enable Departmental Supervisor/Engineer climb up and closely watch the repair work of the building.

Providing and laying High performance acrylic elastomeric water proofing treatment system including preparation of surface by cleaning the surface by washing thoroughly by mechanical and manual means, making surface free from dirt/oil/other materials, removal of loose/ cracked mortar joints of weathering tiles, filling the cracks using approved crack fillers, filling/injection/grouting the cracks/joints where ever required with polymer modified cement mortar using admixtures, loose tiles shall be fixed firmly, applying bond coat, applying second coat of two component highly flexible cementious water proofing coat, applying third and fourth coat of high performance acrylic elastomeric coating, leak test, etc., all complete as detailed below as per manufacturer specifications and as directed by the Engineer-in-Charge. i) Crack Treatment: Making V groove (upto 6mm depth and 6 mm width) along the surface cracks, cleaning the surface by sprinkling water to remove all the loose particles, dust and filling the cracks with Polymer modified cementitious crack sealer from ‘Renderoc CS of Fosroc / Mixbuild GP of FAB Chemical / Ceragrout 40 of CERA CHEM / Crack fill of Bostik Crack fill Bostik or other approved equivalent’, Mixing ratio, consumption and application procedure shall be as per manufacturer specifications ii) Bond Coat (1st Coat): Applying Base primer bond coat with ‘Mix Bond SBR of FAB chemical / Cera Latex SBR of CERA CHEM / Boscocem 475 of Bostik or other approved equivalent’ over the existing surface. Mixing ratio, consumption and application procedure shall be as per manufacturer specifications. iii) Glass Fibre Mesh: Laying the Glass Fibre mesh of 45-50 GSM of ‘Mixmat GFM 50 of FAB chemical / GEOTEXTILE 50GSM or other approved equivalent’ over the above bond coat is still green. Overlaps of joints of fibre cloth should not be less than 100mm or as per manufacturer specifications. iv) Highly flexible cementious water proofing coat (2nd Coat): Applying 2 component waterproofing coating of ‘Mixguard AC of FAB Chemical / Ceralastic of CERA CHEM / Boscolastic of Bostik / Brushbond RFX of Fosroc or other approved equivalent’, Mixing ratio of chemicals, consumption and application shall be as per manufacturer specifications. v) Highly performance acrylic elastomeric water proofing coat (3rd and 4th Coat): Applying seal coat and top coat using acrylic elastomeric waterproofing coating ‘Mixtex Super of FAB Chemical / Nitoproof 600 PF of Fosroc / Ceraflex of CERA CHEM / Elastocoat of Bostik or other approved equivalent’ Mixing ratio of chemicals, consumption and application shall be as per manufacturer specifications.

Cutting & removing of MS structural steel members, MS plates, scraps etc. of various size, shapes, thickness and dia at height of around 11.0m from FFL, including lifting and stacking with the help of crane / hydra with riggers and helpers upto a lead of 1kms to the specified locations with the help of above said machineries etc. complete including cost of machineries, sling and required number of skilled and unskilled labourers etc., complete all as directed by Engineer-in-Charge. Note: Contractor is hereby advised to ensured that the necessary safety precautionary measures are to be taken at the time of shifting of materials. Note: Any scaffolding arrangement made by the contractor shall be paid under relevant item.

Providing and laying 25mm thick Indian patent stone flooring and skirting with cement concrete 1:2:4 using 10mm and below size hard broken granite stone jelly and crushed stone sand and including dividing strips, laying in panels, consolidating, curing, rubbing the surface smooth, cleaning the surface neatly at the time of handing over the area complete all as per specifications and as directed by the Engineer-in-Charge.

Providing and injecting polyurethane based injection resin grout ‘Cera Inject SS/Fosroc Nitofill WS60/ Sika Injection-201 IN’ at all levels in proportion recommended by the manufacturer into cracks, honey-comb area, arresting roof leaks, low roof leakages, underground sump leaks and other required members by suitable gun/pump at required pressure including cutting of nipples after curing, all machinery , tools, manpower, necessary scaffoldings etc. complete all as directed by the Engineer-in-Charge. Note: The consumption of grout material measured for bill is the actual quantity of intake during grouting. Wastages during grouting process and other wastages are not considered for measurement.