PROVISION OF INDUSTRIAL FLOORING IN STORE HOUSE AREA IN BUILDING NO P5 AT NSD UNDER GE NAVY CHENNAI

M & L for (i) Preparing the existing surface of floor by shot blasting / scarification and cleaning by wire brushing etc, to remove all dirt, dust, oil etc to expose clean sound base concrete. Cost shall include treatment of construction and control joints filling as per manufacturer's specification and direction of Engineer In Charge. Any imperfections, cracks, potholes, unsound concrete portion in the concrete shall be treated with suitable polyurethane system as per manufacturer specification (ii) Providing and applying Cementitious polyurethane floor topping of 4mm thickness using Fosroc Nitoflor SL 3000 UT a four-component product. A forced-action rotary paddle mixer is recommended for mixing the product. Topping applied at 3mm thickness over a scratch coat with Nitoflor SL 3000 UT of 1mm to the designated area and shall have smooth matt finish, on cured shall exhibits the following: Compressive Strength (ASTM C109) 28 days at 50.8 MPa, Tensile Strength(BS6319-7) 6.8 MPa, Flexural Strength(BS6319-3) 17.9 MPa, Slip Resistance (ASTM E303) Dry, S56/ S96 - 22/32 (moderate slip risk), Impact Resistance (ASTM D2794), Joules for 3mm thickness 8.1 and for 6mm thickness 10.8,high resistance to damage. Ensure that the construction, control joint and other anchorage grooves of 8mm x 8mm are fully wetted out with material at the edges, day joints, up-stands, drains, doorways and at regular points across the floor and all debris removed complete.

M & L for providing Expansion joints with PU Sealant at the designated joints are to be sealed using Fosroc Colpor 200PF over the Backer rod of Expancel which shall position on the filler board of Hydrocel XL of the Expansion joint, pavement sealant manufactured by Fosroc to BS 5212: 1990 and U.S. Federal Specification SS-S 200E:1984. Colpor 200PF has a movement accommodation factor of 30% in butt joints. To ensure the sealant operates within its stated movement capacity of 30%, the width of sealing slots should be designed in accordance with the recommendations of IRC-57-2006. In trafficked areas the expansion joint width should not generally exceed 30 mm. Size of joint (25mm X 12mm) complete all as per manufacuture instruction and as directed. Note: 1.The work will be caried out by authorised applicator of the manufacture only.The same shall be approved before carrying out the work from GE(Navy).Contractor should submit authorised applicator certificate before execution of work. 2. Five years of warranty and guarantee for the work shall be provided by both appplicator and chemical supplier and necessary certificate for the same shall be submitted.

M & L for providing PU coving 75mm x 75mm for walls over a scratch coat of Nitoflor Coving UT followed by screed mortar using Nitoflor Coving UT or approved equivalent. The starting & end portions of coving shall be anchored to floor and wall after taking the grooves in teh surface. Finishing the top surface with two coats of Nitoflor HB 200 UT at minimim 200 microns thick or as per manufacturer’s specification. Note: 1. The work will be caried out by authorised applicator of the manufacture only.The same shall be approved before carrying out the work from GE(Navy).Contractor should submit authorised applicator certificate before execution of work. 2. Five years of warranty and guarantee for the work shall be provided by both appplicator and chemical supplier and necessary certificate for the same shall be submitted.

M & L for providing Line Marking by applying two coats of Nitoflor FC 150, solvent free epoxy resin coating to a width of 100mm at a coverage of 5 sqm / litre as per manufacturer's specification. Note: 1. The work will be caried out by authorised applicator of the manufacture only.The same shall be approved before carrying out the work from GE(Navy).Contractor should submit authorised applicator certificate before execution of work. 2. Five years of warranty and guarantee for the work shall be provided by both appplicator and chemical supplier and necessary certificate for the same shall be submitted.