Department Of Atomic Energy Tender

Dismantling of existing Brickbat coba manually/ by mechanical means and disposal of material within 50 metres lead as per direction of Engineer- in-charge.

Type -V Roof Tile Chemical Water proofing

Surface Preparation : - Clean the surface thoroughly by wire brushing and vacuum cleaning to remove all loose particles, dust, laitance, mold, small plants, grass, release agents, and curing compounds. Avoid water jetting a). Treat all cracks with Rearm SBR modified mortar to ensure a uniform surface. For filling cracks for Holes and dents on the surface of terrace polymer modified cement sand mortar is to be used. b) Allow the surface to self-cure for a minimum of 24 hours. Ensure the moisture content is below 5% before priming. 1st Coat -: (i) Apply the 1st coat of a two-component acrylic-modified agent (such as AquaArm 2C or equivalent) to form a seamless and durable waterproofing membrane. (ii) Use a brush or roller to apply the 1st coat on the surface-saturated dry roof and inside intermediate walls. (iii) Lay fiberglass (45 gsm) on the first layer while it is still green to enhance reinforcement and crack resistance. (iv) Apply the 1st coat at a rate of 1 kg/sqm/coat, ensuring complete coverage and uniform thickness.