| 1 | Providing and applying cementitious repair mortar conforming to EN 1504-3 (Class R4), with an thickness of 10 mm, for repair and reprofiling of the concrete ogee surface of the dam, including work at heights, as directed by the Engineer-in-Charge. The work shall include surface preparation by thorough cleaning; removal of all loose, unsound concrete; cleaning of lift joints; removal of laitance, rust, oil, grease, algae, and fungi by wire brushing, light mechanical means, and high-pressure water jetting; pre-wetting of the substrate; application of an approved bonding system; mixing and application of the repair mortar in layers to the required thickness; finishing to true line, level, and profile; and curing as per the manufacturers recommendations. The item shall be complete in all respects as per technical specifications and directions of the Engineer-in-Charge, including the cost of all materials, labour, machinery, scaffolding, hire charges, insurance, transportation, and all leads and lifts. | 12061.000 | Sqmt |
| 2 | Providing and applying cementitious repair mortar conforming to EN 1504-3 (Class R4), with an thickness of 10 mm, for repair and reprofiling of the concrete ogee surface of the dam, including work at heights, as directed by the Engineer-in-Charge. The work shall include surface preparation by thorough cleaning; removal of all loose, unsound concrete; cleaning of lift joints; removal of laitance, rust, oil, grease, algae, and fungi by wire brushing, light mechanical means, and high-pressure water jetting; pre-wetting of the substrate; application of an approved bonding system; mixing and application of the repair mortar in layers to the required thickness; finishing to true line, level, and profile; and curing as per the manufacturers recommendations. The item shall be complete in all respects as per technical specifications and directions of the Engineer-in-Charge, including the cost of all materials, labour, machinery, scaffolding, hire charges, insurance, transportation, and all leads and lifts. | 12061.000 | Sqmt |
| 3 | Providing and applying cementitious repair mortar conforming to EN 1504-3 (Class R4), with an thickness of 10 mm, for repair and reprofiling of the concrete ogee surface of the dam, including work at heights, as directed by the Engineer-in-Charge. The work shall include surface preparation by thorough cleaning; removal of all loose, unsound concrete; cleaning of lift joints; removal of laitance, rust, oil, grease, algae, and fungi by wire brushing, light mechanical means, and high-pressure water jetting; pre-wetting of the substrate; application of an approved bonding system; mixing and application of the repair mortar in layers to the required thickness; finishing to true line, level, and profile; and curing as per the manufacturers recommendations. The item shall be complete in all respects as per technical specifications and directions of the Engineer-in-Charge, including the cost of all materials, labour, machinery, scaffolding, hire charges, insurance, transportation, and all leads and lifts. | 12061.000 | Sqmt |
