Repair and Maintenance Works to the Chimney for Unit 1 Repair Works to the Inner Walls of Chimney Fire Brick Lining Chimney Duct arrest the leakage of the Flue Gas from the bottom of Chimney including Cleaning of Fly Ash from Chimney Bottom and

Labour charges for through cleaning the chimney inner wall and divider wall surface using air compressor and then washing with water including cost of labour lead, lift cost of Air compressor etc., complete.

Removal of settled fly ash debries etc., from inside conical hopper of chimney cleaning away from the site with lead of 1km including cost of labour, lead, lift etc., complete.

Gunitting the prepared concrete surface at an average thickness of 50mm in to two layers of 25 mm each using OP/PP cement and sand 1:3 by volume as per ISI 9082/1978 using gunitting equipment the mixture being ejected and shot into the surface by means of compressed air including treating the existing concrete surface before gunitting with watering and applying cement slurry with supplying of materials, labours, lead, etc., complete.

Dismantling the existing brick masonry for the required height and disposing the debris 1 Km. away from the site including cost of all materials, labours, lead, lift, curing, etc. complete.

Attending Rectification work by providing pointing the acid fire resistant fire brick rate including cost of all materials, labour, lead, lift, curing etc., complete.

Providing wooden platform with scaffolding arrangement using 10 to 13cm dia. Casurina posts and 40mm thick country wood planks for providing platform over the scaffolding including cost of all materials labour, lead, lift etc., complete.

Providing Fire brick work in cm 1:3 using fire concrete cement mortor including cost of materials, labours, lead, lift etc, complete.

Providing fire brick Fire brick work (9inch x 4inch x 3inch) using fire concrete cement or equivalent including cost of all materials, labours, lead, lift, curing etc, excluding the cost of fire bricks. (using old fire bricks).

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

Providing PCC 1:2:4 using OP/ PP cement with 12mm to 20 mm machine crushed HBG metal including cost of all materials, labours, lead, lift etc., complete.