Public Works Department Tender

18mm cement plaster in two coats under layer 12mm thick cement plaster 1:5 ( 1 cement : 5 coarse sand) and top layer 6mm thick with cement plaster 1: 3 (1 cement : 3 coarse sand) finished with sponge.

Deep penetrating and reactive water repellent coating for protection heritage structure surfaces;Providing and applying on a well prepared vertical /Horizontal surface which is solvent free liquid based on a monomeric alkylalkoxysilane. The amount to be applied depends to a large extent on how absorbent the substrate is. In practice it has to be determined by a trial impregnation. The product shall be based on pure silane formulation and free of siloxane and solvents.The material shall be mixed and applied fully in accordance with the manufacturer's instructions. All scaffolding ladders supporting materials etc. complete. Rates shall be inclusive of all labour materials tools and plant etc. complete.

Constructing brick masonry manhole or inspection chamber with second class bricks in cement mortar 1:5 (1 cement :5 fine sand) R.C.C. top slab with 1:2:4 mix (1 cement: 2 coarse sand ;4 graded stone aggregate 20mm nominal size foundation concrete 1:2:4 mix (1 cement ;2 coarse sand :4 graded stone agrregate 40mm nominal size) inside plastering 12 mm thick with cement mortar 1:3 (1 cement :3 coarse sand) finished with a floating coat of neat cemetn and making channels in cement concrete 1:2:4 mix (1 cement :2 coarse sand :4 graded stone aggregate 20 mm nominal size) neatly finished complete as per standard design.;Inside size 60 x 60cm and 60cm deep including C.I. cover with frame (light duty) 455x610mm internal diameter total weight of cover and frame to be not less than 38 kg. (weight of cover 23 kg).

Providing and laying in position cement concrete 1:2:4 (1 cement : 2 coarse sand: 4 graded granitic or basaltic stone aggregate 40 m nominal size) excluding cost of centering shuttering and finishing :;All works upto plinth level

Providing water proofing treatment over the new R.C.C. roofs terrace toilet by spreading cement slurry over the R.C.C. slab and laying of 10cms. Average laterite stone ballast coba with the necessary gradient for easy flow of rain water and the coba in covered with damp proof of Hindustan water proofing co. Or equivalent jointless water proofing plaster of mix 1:3 ( 1 cement : 3 find sand) finished smooth with wooden trowel with false marking of 30 cms square. The vertical surface of the adjoining walls are to be treated upto a height of 30cms including rounding of junction (the rate includes for complete items including labour and materials and including cost of initial treatment of roof slab as follows. The injunction of damp proof or equivalent compound with cement solution will be given as and when found necessary for filling honey comb cracks etc. in the R.C.C. slabs). NOTE: cement consumption 25 kg/sq.m.

Providing and fixing colour coated galvulium roofing sheets of 0.5mm thickness including all the accessories (TATA make) but excluding the cost of purlins rafters trusses flashings etc. complete as per the directions of the Engineer in charge.

Clearing jungle including up rooting of rank vegetation grass bush wood trees and sapling of girth upto 30 cm. measured at a height of 1 m above ground level & removal of rubbish upto a distance of 50 mt. outside the periphery of the area cleared. (if however only grass is met with the area will be measured and paid for under item 4001).

Steel work in built up tubular (round square or rectangular hollow tubes etc.) (Square Hollow Section (SHS) IS4923 /Rectangular Hollow Section (RHS) IS4923/ Circular Hollow Section (CHS) IS1161 closed Structural Steel of (SAIL TATA. VIZAG JSW APOLLO Steel Ltd.) make (Min Yeild Stress 310 Mpa)) trusses etc. including cutting hoisting fixing in position and applying a priming coat of approved steel primer including welding and bolted with special shaped washers etc. complete.

Renewing wooden battens in roofs including making good the holes in walls & painting with oil type wood preservative of approved brand and manufacture complete including removal of rubbish to the dumping ground within 50 meter lead :;Jamba wood beams

Providing and laying 2nd class mangalore tile roof covering with 25 x 37 mm (1"x 1.5") jamba wood or similar batten including nails etc. but excluding rafters.

Providing and fixing ridges & hips in asbestos cement sheets roofing with G.I. j or l hooks bolts and nuts 8mm dia G.I. plain and bitumen washers complete.;Close fitting adjustable ridges

Neat Cement punning

Laying mangalore tile roof covering with 25 x 50 mm jamba wood or similar battern including nail etc. complete (mangalore tiles will be supplied by the department free of cost).

Providing and fixing rigid PVC S.W.R. (soil waste & rain water drainage pipes of approved including lubricant etc. complete (single/double) socketed:;110 mm dia

Providing asbestos cement sheets roofings fixed with galvanized iron j or l hooks bolts & nuts 8mm dia G.I. plain and bitumen washer complete excluding the cost of purlines rafters and trusses.;Corrugated sheets 6mm thick.

Providing and laying ridge tiles laid dry & pointed with lime mortar 1: 2 (1 lime: 2 surkhi)