Water Proofing treatment at terrace of valve hall ( Pole 3 and Pole 4 ) and Service building at HVDC Station Alipurduar

Providing & applying Polyurethane Paint…

A Grid to F Grid ( HV Side)

F Grid to J Grid ( LV Side)

Grid J to Grid 1 ( 2nd floor to Ist floor)

Wall between HV & LV

Grid1 to Grid 8

Grid 1 to Grid 2

Ventilation /Valve Cooling Room Side

Grid2 to Grid 8

Coverter Transformer side (LV)

Grid J to Grid F up to wall Beam

Grid J to Grid 1below wall beam up to wall Beam

Converter Transformer side ( HV)

Grid A to Grid F up to Wall Beam

Grid A to Grid B below Wall beam

DC Yard Side

Grid 1 to Grid 8

TOTAL AREA FOR POLE 3

TOTAL AREA FOR POLE 3 & POLE 4 = ( 2x5699.94)

Hacking of CC Flooring & Cleaning of Surface…

Valve Hall

Valve Hall Cooling

Valve Hall Cooling

TOTAL

Providing mixing and applying Bonding Coat..

Valve Hall

Valve Hall Cooling

Valve Hall Cooling

TOTAL

Providing and laying APP (Atactic Polypropylene Polymer) modified…... prefabricated five layer 3 mm thick water proofing membrane, black

Valve Hall

Valve Hall Cooling

Valve Hall Cooling

TOTAL

BOQ item details for Water Proofing treatment at terrace of valve hall ( Pole 3 & Pole 4 ) & Service building at HVDC Station Alipurduar. Specification Nos.: ER2/NT/S-MISC/DOM/E00/24/14080/I-4717/RFX 5002003963

As per Quotation

Painting with aluminium paint of approved brand and manufacture to give an even shade . Two or more coats on new work

Grading roof for water proofing treatment with Cement concrete 1:2:4 (1 cement : 2 coarse sand : 4 graded stone aggregate 20mm nominal size)

Preparing the surface by bridging all the cracks with Nanofix crack bond/ Sika Latex or equivalent that are visible on the existing top surface and repairing all the copings with polymer modified mortar followed by epoxy bonding agent, cleaning and removing loose, laitance etc and cleaning the surface properly and removing the debries from the site.