Water proofing treatment work including repainting of corridor walls of Kameng hostel in IITG Campus

Dismantling tile work in floors and roofs laid in cement mortar including stacking material within the campus as directed by Engineer in Charge. For thickness of tiles above 25 mm and up to 40 mm

(a) after surface preparation, first layer of slurry of cement @ 0.488 kg/ sqm mixed with water proofing cement compound @ 0.253 kg/sqm. (b) laying second layer of Fibre glass cloth when the first layer is still green. Overlaps of joints of fibre cloth should not be less than 10 cm. (c) third layer of 1.5 mm thickness consisting of slurry of cement @ 1.289 kg/sqm mixed with water proofing cement compound @ 0.670 kg/sqm and coarse sand @ 1.289 kg/sqm. This will be allowed to air cure for 4 hours followed by water curing for 48 hours. The entire treatment will be taken upto 30 cm on parapet wall and tucked into groove in parapet all around. (d) fourth and final layer of brick tiling with cement mortar (which will be paid for separately. For the purpose of measurement the entire treated surface will be measured.

(a) Cement concrete 1:2:4 (1 cement : 2 coarse sand : 4 graded stone aggregate 20 mm nominal size)

Cutting the existing crack in a 'V' shape groove cleaning the same with proper means Application of one coats of Epoxy Bonding Agent followed by application of Sika 214 non- shrinkage powder over the entire crack area and let dry. Finally plaster the surface wherever necessary.

Removing white or colour wash by scrapping and sand papering and preparing the surface smooth including necessary repairs to scratches etc. complete

Providing and applying white cement based putty of average thickness1 mm, of approved brand and manufacturer, over the plastered wall surface to prepare the surface even and smooth complete.

(a) New work (two or more coats) over and including water thinnable priming coat with cement primer having VOC content less than 50 gram/litre