Repair works of concrete flooring and existing drain for the Phosphoric Acid Day Tank dyke wall inside and provision of Acid Proof brick lining for the drain at the NP Plant in FACT CD, Ambalamedu, Kochi.

Dismantling CC/RCC works including separately removing & stacking available reinforcement & clearing away the debris as per directions within a distance of 150 m.

Chipping Acid proof bricks / Refractory bricks / Refractory castable etc. of any thickness and stacking useful materials for reuse including disposal of debris within a distance of 150 m, cleaning the surface etc complete as per directions.

Earth work excavation in all classes of soil including narrickal but excluding hard rock which require blasting including back filling in basement & sides of foundation, depositing on bank within an initial lead of 50 m including breaking clods, watering, ramming and sectioning of spoil bank etc.complete- Up to 1.5 m depth from ground level.

Providing formwork to RCC works with necessary wooden planks, joists, runners, posts etc.including removal after completion of works- For foundation footings etc.

Providing reinforcements to RCC works with MS / Tor steel rods including all charges for conveying, straightening/uncoiling, cutting, bending, placing rods in position & tying with GI / black annealed tying wire of suitable gauge etc. complete.including cost of reinforcement.

Flooring with PCC 1:2:4 mix concrete using first class 20 mm and downgrade hard granite broken stone including mixing concrete, laying in panels, necessary formwork, consolidating, curing etc complete

RCC work in 1:1½:3 nominal mix using 20 mm and downgrade hard granite broken stone including all charges for mixing concrete, laying, consolidating, curing etc.complete but excluding cost of form work & reinforcement works- For foundation footings, bottom & sides of trenches, equipment foundations, plinth beams, lintels, slabs, columns & beams etc.up to 5 m from ground level.

Acid proof lining after cleaning the cement finished surface well with water and allowing to dry, brushing and removing all dust, apply two coats of approved quality bitumen based primer conforming to IS. 1580 as per manufacture's specification, applying 12 mm thick asphalt membrane with hot melt asphalt free from filler conforming to IS. 1580, then laying acid resistant tiles of class II quality conforming to IS. 4860 over a bed of 6 mm thick potassium based silicate cement mortar conforming to IS. 4832 - part. I & 4441 and joints 5 mm thick, raking the joints to full depth from the top surface, removing the raked-out mortar and filling the entire depth of joints with Furan base resin cement mortar conforming to IS. 4832 - part. II including acid washing curing etc. complete as per relevant IS. 4443 specifications at all heights. - 230X112X38 mm or nearest size tile.

Cleaning the structural/other surface neatly at all heights, manually with suitable tools or with high pressure water jet spray (using suitable mechanical means), and scraping if required, to remove the whole accumulated dust, rust, dirt etc as per departmental instructions.

Applying one coat of approved quality primer "Berger Pro epishield floor sealer" and two coats of approved quality Acid resistant finish paint" Berger Pro Epishield NE100" finish of Berger Paints or equivalent at all heights for the floor area of tanks inside the dyke wall area, drainage channels,truck loading bay floor areas and sump pits after cleaning the surface to remove loose particles from floor and to create a profile for proper adhesion of material into floor, the process is done by chipping the floor to remove loose particles and then floor grinding is done to achieve a surface profile of 150-200 microns,including the cost of materials, labour charges etc.complete as per departmental instructions.