Repair of damaged/eroded portions of Spillway glacis, spillway, divide wall, training wall spillway buckets and silt excluder gallery with epoxy mortar, cementitious mortar and HPC of concrete dam of Salal Power Station.

Amount

Surface preparation of old concrete by cleaning methods like compressed air/ high pressure water blast/ sand blast, chipping, wire brush or other means for laying of repair mortar as per technical specification including all stages and scaffolding etc. (Complete finished item with all leads and lifts).

Supply of components epoxy binder (resin, hardener & Accelerator) conforming to ASTM C881 Type-IV, Class C as per technical specification at site including carriages through mechanical transport.

(a) Supply of Epoxy resin

(b) Supply of Epoxy Hardener

(c) Supply of epoxy Accelerator

(d) Supply of Quartz sand No. 10

Applying Epoxy mortar over prepared concrete substrate as per technical specifications including cost of carriage by head load to site, scaffolding and labour etc. complete finished item.

(a) 6mm thick layer

(b) 12 mm thick layer

(c) 18mm thick layer

Providing and applying (spray application) high performance cementitious mortar conforming to EN1504-R4 (CE certified) on exposed/damaged concrete surface (invert/vertical walls/overt) as per technical specification including chipping of old concrete to correct profile using suitable equipment & scaffolding etc. including all lead and lifts complete finished item.

Removal of silt from dam bucket including cost of consumables, T&P items and carriages complete in all respect

Chipping of old concrete to making correct grade and profile upto required depth using suitable equipment such as jack hammer/chipper including removal of unsound concrete surface as per technical specification and disposal of excavated material complete in all respect

Drilling of 32mm dia, 500mm deep holes for fixing 25mm dia steel anchor bars by way of suitable equipment.

Providing and fixing 25mm dia steel bars for anchors, bend to required shape in drilled holes using suitable means as per technical specification

Providing and filling Epoxy resin system of (Sika/Fosroc/BASF/ Pidilite/Henkel/ Huntsman /any reputed make) in drilled holes for anchoring as per technical specification including cost of all material carriage, staging, scaffolding and labour etc. complete finished item.

Supply and apply to an even and smooth coat of epoxy based bond coat (Sika/Fosroc/ BASF/ Pidilite/Henkel/ Huntsman/any reputed make) in between old and new concrete (consumption may be more due to uneven surface/undulation) as per technical specification including cost of all material carriage, staging, scaffolding and labour etc. complete finished item.

Providing and laying high performance concrete M65/A20 as per technical specifications, proper compaction, curing including the cost of all materials, carriage, staging, scaffolding and labour etc. with all leads and lifts complete finished item.

Providing and laying of (Steel/plywood) shuttering for laying of concrete with steel frames, its fixing to the correct grade and profile including the cost of all materials, carriage, drilling, grouting and anchoring for hoisting the channels, scaffolding and labour etc. complete items with all lead and lift

Providing and laying Chemical Admixture BASF Glenium Sky 8866 @ 3.20 kg/cum as per IS 9103-1999

Providing and laying micro silica fume conforming to IS 15388-2003

S.K Sales Company

SS Soam Engineers Pvt. Ltd.

RL SHARMA

ALPHA PACIFIC SYSTEMS PVT. LTD.

APAAR INFRATECH PVT LTD

REHABILITATION ENGINEERING

M/S PURNAGIRI CONSTRUCTION CO. PVT. LTD.