Rectification works to the damaged Ash Slurry line supporting columns and beams of Unit 4 and 5from ASPH up to JT 3 in Unit 5 area

Clearing the ash deposits in the bottom of supporting columns by excavating and disposing away from site up to 1 km distance in order to enable to undertake repair works to columns including labour, lead, lift, etc., complete.

Dismantling the damaged RCC structures and disposing the debris 1 km away from site including cost of labour, lead, lift, T&P, etc., complete.

Providing HILTI joint arrangements to the rods by drilling holes into the existing raft concrete to the required depth and injecting motor HIT - RE 500 @ 0.50ml./mm chemicals, rate including the cost of chemical, drilling arrangements, labour charges, lead, lift, etc., complete

Supplying fabricating and fixing in position of RTS rod for reinforcement including cutting bending tying and fixing in position including cost of all materials, labour, binding wire, lead, lift, tools etc., complete.

Providing shuttering arrangements for placing the concrete using steel members and wooden props including cost of all materials, lead, lift, etc., complete.

Providing RCC 1:1.5:3 using OP cement with 12 to 20mm machine crushed HBG metal including cost of all materials, labours, lead, lift, curing, etc. complete - excluding cost of reinforcement and form work

Removing the spalled/distressed concrete for an average thickness of 75mm including disposal of debris with a lead of 1 km and roughening the surface thoroughly with Reebaklens fosroc acid/ equivalent with all lead, lift, labour, etc complete.

Micro Concrete 75mm Thickness a. Applying One coat of Nito Zinc/equivalent primer after thorough cleaning of rust in the reinforcement rate including cost of all materials, labour, lead, lift etc., complete as directed by the engineer at site. b. Providing fabricating and erecting slurry tight form work with plywood shutters with suitable supports, which do not deform due to micro concrete including cost of all materials, labours, lead, lift, etc., complete as directed by the engineer at site. c. Providing micro concrete Rendroc RG (or) equivalent as per manufacture's specifications. This mixed micro concrete should be placed continuously for an average thickness of 75mm including cost of all materials, labours, lead, lift, etc., complete as directed by the engineer at site. d. Applying one coat of polymer modified Acrylic Emulsion (Nito bond AR or equivalent) on the finished concrete surfaces as a curing membrane including cost of all materials, labours, lead, lift, etc., complete as directed by the engineer at site.

Providing two coats of anticorrosive black paint to the newly plastered surface over a one coat of primer including cost of all materials, labour, lead, lift, etc., complete.

Providing addition temporary supports during vertical column rectification for preventing the structure collapse using available the MS channel from scrap, welding, fabrication and erection etc., completed. (MS scrap will be supplied from dept. free of cost). After completion of rectification works the scrap will be devoluted to stores.