Details: reparing and maintenance work removing dry or oil bound distemper, water proofing cement paint and the like by scrapping, sand papering and preparing the surface smooth including necessary repairs to scratches etc. complete repairs to plaster of thickness 12 mm to 20 mm in patches of area 2.5 sq.meters and under, including cutting the patch in proper shape, raking out joints and preparing and plastering the surface of the walls complete, including disposal of to the dumping ground, all complete as per direction of engineer-in-charge. with cement mortar 1:4 (1 cement : 4 fine sand) providing and applying white cement based putty of average thickness 1 mm, of approved brand and manufacturer, over the plastered wall surface to prepare the surface even and smooth complete. applying priming coats with primer of approved brand and manufacture, having low voc (volatile organic compound ) content. with water thinnable cement primer on wall surface having voc content less than 50 grams/litre
Sector: Water Resource Department