Aqueduct Protection and Rehabilitation Works at Hindon River under 270 Cusec Delhi Water Supply Maintenance Scheme

Protection/Repair of Aqueduct

P.C.C. 1:4:8 with cement, sand and 40mm gauge brick ballast in foundation, floor, apron and for other repair works where required including supply of all materials, labour and T&P etc. for proper completion of work.

Cement concrete 1:2:4 with 1 part cement, 2 parts coarse sand & 4 parts stone grit including all material, labour, T&P etc required for completion of work.

Dismantling of old dry damaged stone pitching and re-stone pitching 22.50 cm thick required work and preparing surface complete inside slopes of Hindon river bund excluding cost of stones but including carting of stones from one place to site of work including supply of labour, T&P etc

Raised and cut pointing 35 mm wide and 12mm thick with cement and local sand mortar (1:3) on stone work including all materials, labour. T&P ete required for the proper completion of the work.

Finishing/Painting of the external surface of walls with premium acrylic smooth exterior paint (asian apex Ultima paint or its equivalent) of approved shade to give an even shade in two coats after applying priming coat of cement primer including all material, labour T & Petc

Drilling and fixing injection packers in RC members including. Drilling Holes: Drilling holes in structural members at the intervals as per recommendation of engineer in charge. Cleaning of holes: Clean the holes by air blower prior to fixing nozzles. Fixing of Packers: Insert 12 mm dia.. 50-75 mm long injection packers in cleaned holes with moisture insensitive epoxy resin based putty or equivalent. Cutting of Packers. Cut the packers by cut of wheel after completion of grouting without damaging structural elements. Patching Hole:- After cutting of packer we patch the hole on epoxy putty.

Supply and apply single component. Polyurethane Injection foam based system for wet condition and temporary sealing, which cures to a dense flexible foam with a fine cellular structure Product Requirements: Viscosity cps 500-1300 at 23°C

Supply and apply 2 component, elastic, low viscous, solvent free. Polyurethane Injection resin based system for permanent sealing, that does not need the presence of water for hardening reaction Product Requirements: Viscosity of mixture < 100 mPa*s (at +20°C) Capable of penetrating cracks> 0.2mm wide with a CE Marking (European Conformity)-> Conformance label that product is approved to the essential requirements and under market surveillance

Making scaffolding and dismantling the same after completion of work including cost of material, labour, T&P, transportation etc, required for proper completion of work.