tender for ch 12 to 19, transit camp, tp road - excavation in earth 2 nominal mix of 1:2:4 (1 cement opc: 2 coarse sand : 4graded stone aggregate 20 mm nominal size 3 25 to 30 mm thk. rough tandur stone 4 repairing of existing gully trap chamber 5 brick work with common burnt clay f.p.s. (cement mortar 1:4 (1 cement : 4 coarse sand) 6 providing and applying 20 mm thick internal sand facedcement plaster 7 p/f upvc pipe 110mm dia 8 p/l 250mm s.w. pipe 9 p/l100mm s.w. pipe 10 p/l 1:4:8 c.c. encasement 250 mm pipe 11 p/l 1:4:8 c.c. encasement 100 mm pipe 12 providing & fixing m. s. angled isa 5050 of 6 mm. welded framefor rectangular inspection chamber of 90 cm x 45 cm. with, 1 : 2: 4 r. c. c. cover 13 15 mm dia nominal bore 14 25 mm dia nominal bore