bids are invited for providing shed near field lab in agronomy section - earth work in surface excavation not exceeding 30 cm in depth but exceeding 1.5 m in width as well as 10 sqm on plan including getting out and disposal of excavated earth upto 50 m and lift upto 1.5 m, as directed by engineer-in- charge: , providing and laying in position cement concrete of specified grade excluding the cost of centering and shuttering - all work up to plinth level 1:5:10 (1 cement : 5 coarse sand (none -iii) derived from natural sources : 10 graded stone aggregate 6mm nominal size derived from natural sources) , providing and laying cement concrete in retaining walls, return walls, walls (any thickness) including attached pilasters, columns, piers, abutments, pillars, posts, struts, buttresses, string or lacing courses, parapets, coping, bed blocks, anchor blocks, plain window sills, fillets, sunken floor etc., up to floor five level, excluding the cost of centering, shuttering and finishing:1:1½:3 (1 cement : 1½ coarse sand (zone-iii) derived from natural sources : 3 graded stone aggregate 20 mm nominal size derived from natural sources). , brick work with common burnt clay f.p.s. (non modular) bricks of class designation 7.5 in foundation and plinth in: 6.1.1 cement mortar 1:4 (1 cement : 4 coarse sand) , 12 mm cement plaster with fine sand of mix 1:4 ( 1 cement : 4 fine sand) , cement concrete flooring 1:2:4 (1 cement : 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. , steel work in built up tubular (round, square or rectangular hollow tubes etc.) trusses etc., including cutting, hoisting, fixing in position and applying a priming coat of approved steel primer &2 coats of enamel paint, including welding and bolted with special shaped washers etc. complete.