NHDC Limited Tender

Uprooting weeds from the trenched area after 10 to 15 days of its flooding with water including disposal of uprooted vegetation.

Chipping of unsound/weak concrete material from slabs, beams, columns etc. with manual Chisel and/ or by standard power driven percussion type or of approved make including tapering of all edges, making square shoulders of cavities including cleaning the exposed concrete surface and reinforcement with wire brushes etc. and disposal of debris for all lead and lifts all complete as per direction of Engineer-In-Charge 50 mm average thickness

Providing and fixing 25 mm dia. 2.75 m long ribbed steel anchor rods with one end split and driven firmly using steel wedge into 1.25 m deep 38 mm dia. hole drilled in bed rock and other end provided with L-bend for embedding in concrete / masonry for spillway and appurtenant works including cost of all materials, machinery, labour, steel wedge, drilling and cleaning hole, filling hole with epoxy based high performance chemical anchoring adhesive such as Anchor-fix-3030 or equivalent material driving anchor rod etc. Complete (Drilling to be paid seperetely ).

Drilling 35 to 40 mm diameter grout holes in concrete / rock by percussion drilling using jack hammer or stopper drills as directed to specified depth for consolidation/ contact grouting including cost of all materials, machinery, labour, ventilation, lighting, drainage, dewatering cleaning holes and all other ancillary operations etc. complete.

Providing, fabricating and placing in position steel reinforcement bars for Reinforced cement concrete / Plain Cement Concrete structures including cost of all materials, machinery, labour, cleaning, straightening, cutting, bending, hooking, lapping / welding joints wherever required, tying with 1.25 mm diameter soft annealed steel wire etc. Complete.

Epoxy bonding of new concrete to old concrete using epoxy resin painting suitable for dry and wet surface of the concrete with having minimum bond strength to concrete 2.5 MPA including preparation of old concrete surface with wire brush and compressed air , sealing of all cracks or spalling by epoxy injection of epoxy mortar or epoxy grouting as per requirement. Applying epoxy resin bond including cost of all material, machinery, T&P, cost of other incidental charges and testing as per relevant specifications etc. complete.

Providing and laying Reinforced cement concrete for construction of piers, abutments, portal frames, pier caps and bearing pedestals and seismic arresters over pier/ abutment caps at all locations with specified grade using Ordinary Portland Cement (conforming to strength requirement of IS:8112) excluding the cost of centering and shuttering etc., including testing of materials etc. for casting pier & pier cap in one/two stage, necessary tools, plants, machinery and all related operations as required to complete the work as per drawings and Specifications with all leads, lifts and depths true to level and position but excluding the cost of providing reinforcement. Reinforcement shall be measured and paid separately. Note:- Cement content considered in this item is 480 Kg./ Cum. Excess/ less cement used as per design mix is payable/ recoverable separately. Reinforced cement concrete M60.