Yashwantrao Chavan Maharashtra Open University Tender

Providing and erecting single stage bamboo scaffolding in true vertical position with necessary staging at regular intervals as per site requirements with all necessary accessories. The scaffolding to be jointed with choir strings etc. complete. Including hessian cloth and removing the same after the work is completed.

Remove all surface laitance and contamination free from loose aggregate or other sharp protrusions with fairly smooth finish by wire brush and grinding method and surface shall be DRY for application. Clean the surface to remove dirt, loose particles. Examine the surface closely for any cracks. open the cracks or widen them in V-groove, Clean the cracks, Provide and fill a pure acrylic, polymer modified ready to use paste Polyfill AR of approved make & approved by Engineer in charge having a cream coloured viscous emulsion ready to use acrylic polymeric non-shrink crackfiller putty with auto suction properties and requiring no bonding agent, no curing finishing with subsequent filling as required. 1. Specific Gravity: 1.3 ± 0.1 at 25°C 2. pH: 7.0 to 10.00 3. CO2 diffusion resistance co- efficient (DIN EN 1062-6 (2002-10): 7.59 x105 4. CO2 diffusion equivalent air layer thickness (DIN EN 1062-6 (2002-10): 127m @ 190 microns DFT 5. Adhesion (ASTM D 4541): 2.3 N/mm2 (Concrete / Substrate Failure) 6. Solar Reflectance Index (ASTM E 1980 11,EN 673:2011, EN 410:2011): 107 It shall be applied as per manufacturers specification.

For walls other than Stone/rubble masonary:- Remove all surface laitance and contamination free from loose aggregate or other sharp protrusions with fairly smooth finish by wire brush and grinding method and surface shall be DRY for application. Provide and apply three coats of 100% acrylic Elastomeric waterproof heat insulating breathable decorative elastomeric coating of approved make & approved by Engineer in charge, in the desired shade. Stir well and apply by brush for three coats.Applying three coats at an interval of 4-6 hours between each coat. High Performance 100% Acrylic Elastomeric, Waterproof, Anti-fungal, Anti-carbonation, Heat Insulating External Paint should have following minimum properties:1. Specific Gravity: 1.3 ± 0.1 at 25°C 2. pH: 7.0 to 10.00 3. Viscosity: 18 to 30 sec. at 25°C by Ford Cup One Number B-4 (Dilute 2 parts of product with 1 part of water) 4. CO2 diffusion resistance co- efficient (DIN EN 1062-6 (2002-10): 7.59 x105 5. CO2 diffusion equivalent air layer thickness (DIN EN 1062-6 (2002-10): 127m @ 190 microns DFT 6. Adhesion (ASTM D 4541): 2.3 N/mm2 (Concrete / Substrate Failure) 6. Adhesion (ASTM D 4541): 2.3 N/mm2 (Concrete / Substrate Failure).