tender for repair and maintenance of 22 nos. tubular structures at bn hq 163 now 34 bn bsf serchhip under shq bsf aizawl; 1 providing and laying in position excluding cement concrete of level: specified grade the cost of centering and shuttering - all work up to plinth 1:2:4 (1cement : 2 coarse sand (zone-ill) derived from natural sources : 4 graded stone aggregate 20 mm nominal size derived from natural sources) 2 1:3:6 (1cement : 3 coarse sand (zone-ill) derived from natural sources : 6 graded stone aggregate 40 mm nominal size derived from natural sources) 3 half brick masonry with common burnt clay f.p.s. (non modular) bricks of class designation 7.5 in foundations and plinth in : cement mortar 1:4(1 cement :4 coarse sand) 4 cement concrete flooring 1:2:4 (1cement : 2 coarse sand : 4 graded stone aggregate) finished with a floating coat of neat cement, including cement slurry, but excluding the cost of nosing of steps etc. complete. 40 mm thick with 20 mm nominal size stone aggregate 5 12 mm cement plaster of mix: 1:6(1 cement: 6 fine sand) 6 distempering with 1st quality acrylic distemper (ready mixed) having voc content less than 50 gram/litre, of approved manufacturer and of required shade and colour all complete to achieve even shade and colour: new work(twoormorecoats)over andincludingwater thinnable priming coat with cement primer having voc content less than 50 gram/litre 7 finishing walls with acrylic smooth exterior paint of required shade: new work (two or more coat applied @ 1.67 ltr/10 sqm over and including priming coat of exterior primer applied @ 0.90 litre/10 sqm) 8 painting with synthetic enamel paint of approved brand and manufacture of required colour to give an even shade: one or more coats on old work 9 modified estimated cost after using correction factor on dsr 2023 on account of gst