GE(S)BTD 11 OF 2026-27 SPECIAL REPAIR TO ROOF TREATMENT OF CERTAIN OTM BLDGS (BLDG NO. P-260 P-261 P-262 P-249 AND P-1044) UNDER AGE BR-II AND AGE EM-IV OF GE(S) BATHINDA AT BATHINDA MIL STN (Job No. SR(B)-25 OF 2025-26)

M & L for cement concrete M15 (Nominal Mix) using 12.5 mm nominal size coarse aggregate in roof kerbs or mud stops, rounded or chamfered on edges complete all as specified and as directed.

M & L for cement concrete M15 (Nominal Mix) using 20 mm nominal size coarse aggregate in roof kerbs or mud stops, rounded or chamfered on edges complete all as specified and as directed.

Supply only liquid water proofing compound.

Water proofing treatment to existing roof/terrace using Single component, acrylic based and flexible, micro fiber reinforced waterproofing and heat reflective coating system. The treatment shall be carried out as per the manufacturer’s instructions and shall include. (a) Preparation of substrate and cleaning it off all loose and triable by mechanical means (b) Open the cracks lines to form , V grooves with cutter/hammer/chisel up to 5-10mm and filling with crack filler and PU sealant. (c) Application of primer coat @ 0.2 to 0.3 kg/ sqm followed by the first coat @ 0.75kg/ Sqm. (d) The second coat shall be applied @ 0.75 kg / Sqm and reinforced with fabric reinforcement mesh between the first and second coat. (e) The top coat of primer shall be applied after the second coat dries off @ 0.05-0.08 Kg per Sqm. (f) The material shall adhere to following specification. TECHNICAL SPECIFICATION OF MATERIAL Tensile Strength 1.5 MPa ASTM D412 Elongation at Break > 200% ASTM D412 Adhesion in Peel > 1.5 MPa (on concrete substrate) EN 1542 Crack Bridging Ability Passes upto 3.2mm Width ASTM C1305 Permeability to Water Vapour Passes IS 2645 Water Vapour Transimission ~ 23 g/m²/24hr ASTM E96 Water Absorption < 10% (by Mass) ASTM D570 Microbiological Resistance No Algae & Fungal Growth ASTM D5590 Solar Reflectance Index 102 ASTM E1980. Note: Complete material shall be procured in bulk and kept in lock and key. Note: The installation company should be trained and authorized by Manufacturer & installation to be carried out as per manufacturers approved method statement. All auxiliary & accessories involved during application should be supplied by single manufacturer as a part of system. Any component used which is not manufactured by the particular manufacturer can only be used with official approval from manufacturer

Providing and fixing chicken wire mesh (Murga jail) in cement plaster or over joints of R.C.C and brickwork or as per site requirement of 24 gauge & 12 mm mesh and 300 mm width for construction joints and chasing in brick work for electrical conduits or water supply pipes including cement slurry and pegs/nails with nailing machine as required before plastering etc. complete as per site requirement complete all as specified and as directed.

Cleaning all existing reinforcement bars in Roof, Ceiling, Chajja, Fascia, Fins, Drops and similar items with wire brush/rotary wire brush to make entire circumference surface of bars free from rust scales, loose material, dirt etc., complete and applying alkaline rust converting primer on the existing rebar and allowing it to react with rust for 6 hrs and form a corrosion resistant, insoluble and adherent protective layer including cleaning the reinforcement, wire brushing to remove the rust spalls, complete as per manufacturer’s instructions, complete all as specified and as directed by Engineer-in-charge. Note: - Mode of measurement: per sqm of breaking area of concrete only.

Providing and application of Zinc rich epoxy anti-corrosive protective coating for reinforcement bars as corrosion protection system in 2 coats to the entire circumference surface of bars (consumption Qty as per manufacturer's instructions but min 0.4 kg/Sqm approx) in Roof, Ceiling, Chajja, Fascia, Fins, Drops and similar items complete all as specified and directed by Engr-in-charge. The product should confirm carbonation resistance of 2 mm and bond strength > 1N/sqmm according to ASTM C 882-78 complete all as specified and as directed by Engineer-in-charge. Note: - Mode of measurement: per sqm of application area of concrete.

Apply SBR based bonding agent to the entire concrete surface prior to building up of concrete with Polymer modified mortar or any other treatment , including cleaning the surface to remove dirt, dust or any other impurities on the surface, etc. complete in Roof, Ceiling, Chajja, Fascia, Fins, Drops and similar items complete all as specified and as directed by Engineer-in-charge.

Rebuilding the section of structural damaged RCC/PCC elements of Roof, Ceiling, Chajja, Fascia, Fins, Drops repair to spalling concrete to its original size and shape in layers of 10 mm average thickness in 1st layer by providing and applying with pre-batched, one component fiber based repair mortar having compressive strength >= 50 N/sqmm (28 days) according to ASTM C 109; flexural strength >= 5N/ sqmm (7 days) according to ASTM C 293-79 complete all as specified and as directed by Engineer-in-charge.

All as per Srl item No 09 here-in-above but for each additional 10mm uniform thickness for subsequent layers.