Rectification works to the column and beams in Cooling Water Pump House II at 0 m Impeller side of Unit IV

Removing the spalled/ distressed concrete for an average thickness of 50mm including disposal of debris with a lead of 1km and roughening the surface thoroughly with Reebaklens fosroc acid/equivalent with all lead, lift, labour etc., complete.

Supplying & providing RTS rod including cutting, bending, tying & fixing in position as per specification including binding wires, cost of all other materials, labours, lead, lift, curing, etc. complete

Supplying, Cutting, bending & tying in position secondary reinforcement wherever necessary using GI weld mesh of size 75 x 50mm 10gauge to the existing concrete surface prepared as per specification including transporting, fabricating bending & tying in position as per the engineer at site including cost of all materials, labours, lead, lift, etc. Complete.

Providing Micro Concrete for 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 from work with plywood shutters with suitable supports, which do not deform side walls including cost of all materials, labour, lead, lift, etc., complete as directed by the Engineer at site. c. Providing micro concrete using Rendroc RG (or) equivalent as per manufacturer’s specifications this mixed micro concrete should be placed continuously for an average thickness of 75mm including cost of all materials, labour, 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) in the walls etc., including cost of all materials, labour, lead, lift etc., complete as directed by the Engineer at site.

Providing patch up works to the damaged cracked concrete surfaces, using concrete mix of RCC 1:1.5:3 for 30mm thickness using OP/PP cement with 6 to 10mm metal chips mixed with Nitobond AR in cement mortar at 100ml/bag of cement including cost of all materials, labours, lead, lift, curing, etc. complete.

Applying one coat of DEKGUARD/ EQUIVALENT primer by spraying to the concrete surface as per manufacturer's specification including cost of all materials labour, lead, lift, etc., complete.

Applying Two coats of DEKGUARD/ EQUIVALENT top coat to the concrete surface by brush or roller (coating should be done continuously without any break) including cost of all materials labour, lead, lift, etc., complete.

MANSOOR