Public Health Engineering Department Tender

Demolishing Brick work in lime or cement mortar in any mix including stacking of serviceable material and disposal of unserviceable material with in 50 meter lead as per direction of engineer-in-charge. ( In cement mortar )(It. No. 15.15.15 P.No. 258) Qty=16x(1.66*1.36-1.20*0.90)x0.60= 11.30

Brick work with well burnt chimney bricks having crushing strength not less than 25 kg/cm² and water absorption not more than 20 % in foundation & plinth i/c curing etc. complete. (ii) in cement mortar 1:4 (PHE SOR wef 01.09.23 It. No. 15.40.2 P.No. 262) Qty=16x(1.66*1.36-1.20*0.90)x1.00= 18.84

Replacement of M.S. Foot rests in manhole including dismantling concrete block and fixing with 20x20x10 cm C.C. blocks of 1:3:6 (1 cement : 3 coarse sand : 6 graded stone aggregate 20mm nominal size) With 20mm square bar foot rest (PHE SOR wef 01.09.23 It. No. 29.21.1 P.No. 376)

12 mm thick cement plaster in single coat finished smooth and curing including cost of form work complete. (i) in cement mortar 1:3 (PHE SOR wef 01.09.23 It. No. 15.46.1 P.No.263) Qty = 16 No.x2*(1.20+0.90)*1.20 =80.64sqm.

Filling available excavated earth in trenches, lead up to 50m and lift up to 1.5m in all kind of soil excluding watering and ramming.(PHE SOR wef 01.09.23It. No.15.12 P.No. 258 )

Providing & fixing of ISI marked pre cast reinforced cement concrete manhole cover including frame and transporting at site, cost of all material etc. 600*600 mm size heavy duty.(PHE SOR wef 16.08.2024 It. No. 29.25.12, page no.03)

Providing and laying mechanically mixed cement concrete with crushed stone aggregate excluding centering and shuttering (with 20mm nominal size graded stone aggregate) (a) In plinth and foundation (ii) 1:2:4 (M-15) For c:c road (PHE SOR wef 01.09.23 It. No. 15.31.1.2 P.No. 260 ) Qty= 16x1.81*1.51*0.25=10.92 for coping16x(1.66*1.36-1.20*0.90)*0.05=.94 Total 11.86

Dismantling of manhole including R.C.C./C.C. top slab, CI / pre cast RCC cover with frame including stacking of useful materials near the site and disposal of unserviceable materials into municipal dumps within 50 m lead.(PHE SOR wef 01.09.23 It. No. 29.18.3 P.No.376)

Constructing Brick Masonry Manhole in Cement Mortar 1 :4 (1 cement : 4 fine sand) R.C.C. top slab 1:1.5:3 (1 cement : 1.5 coarse sand : 3 graded stone aggregate 20 mm nominal size), foundation concrete 1:4:8 mix (1cement : 4 coarse sand : 8 graded stone aggregate 40mm nominal size) inside plastering 12mm thick with cement mortar 1:3 (1cement : 3 fine sand) finished with a floating coat of neat cement and making channels in CC 1:2:4 (1 cement : 2 coarse sand : 4 graded stone aggregate 20mm nominal size) including finishing the channel to shape, curing etc. (Excavation foot rest and external cement plaster shall be paid for separately) Inside size 120x90 cm and 90 cm deep Manhole including CI cover with frame (medium duty) 500mm internal diameter total weight of cover and frame to be not less than (58+58) 116 kg.(PHE SOR wef 01.09.23 It. No. 29.7.3 P.No. 373)

Providing MS foot rests i/c fixing in manhole with 20x20x10cm CC blocks of 1:3:6 (1 cement:3 coarse sand : 6 graded stone aggregate 20mm nominal size ) With 20mm square bar foot rest(PHE SOR wef 01.09.23 It. No. 29.14.1 P.No. 3740

Pumping out to removed the sewers blockage by using suitable pump sets operated by generators , whole assembly mounted on two/four wheels trailer / pickup van. Including diesel & labour charges etc. (PHE SOR wef 01.09.23 It. No. 29.22 P.No. 376)

Making connection of drain or sewer line with existing service lines Manhole including breaking into and making good the walls, floors etc. with cement concrete 1 :2:4 ( 1 cement : 2 coarse sand : 4 graded stone aggregate 20mm nominal size), cement plastered with CM 1:3 (1 cement : 3 coarse sand) finished with a floating coat of neat cement and making necessary channels etc. complete. For 250 to 300 mm dia pipes.(PHE SOR wef 01.09.23 It. No.29.15.2 P.No. 375)

Providing and Laying non-pressure (NP2) RCC socket & spigot pipes with rubber gasket joint including testing of joints. 200 mm dia(PHE SOR wef 01.09.23 It. No. 28.1.3 P.No. 351)

Lifting & Placing of manhole cover during cleaning of chocked sewer line & manhole. (ii) SFRC 560 mm dia size(PHE SOR wef 01.09.23 It. No. 29.27.2 P.No. 377)

Making arrangement for dat (plugging of sewer) including all required material such as steel plate, manila rope, gunny bags, earth etc. or by and other plugging device with all required T & P and safety equipment including dewatering. Depth up to 1.5 m (i) 200 mm dia (connection) (PHE SOR wef 01.09.23 It. No. 29.31.1.3 )

Cleaning of Silt, sludge brick bats, polythene bags, garbage etc. from chocked sewer manholes / sewer drains & Nallahs/ wet well of SPH/ Anaerobic & Facultative Pond of STP with all required T&P such as bucket, manila rope, and all required safety equipment such as safety belt, gas mask, oxygen cylinder etc. including disposal of silt/ sludge upto 50 mtr lead & 1.5 mtr. lift as directed by Engineer-in-Charge including dewatering but excluding dat (plugging of sewer pipe line) Depth up to 1.50 m (PHE SOR wef 01.09.23 It. No. 29.32.1 P.No. 380) Qty = 25x1.20*0.90x0.75=20.25

Cleaning of Silt, sludge brick bats, polythene bags, garbage etc. from chocked sewer line with all required T&P and Safety equipment such as bucket, manila rope, safety belt, gas mask, oxygen cylinder etc. including disposal of silt, sludge upto 50m lead & lift up to 1.5mtr. as directed by Engineer-in- Charge including dewatering but excluding dat (plugging of sewer pipe line) 200 mm dia (PHE SOR wef 01.09.23 Item No. 29.33.2)

Carriage of desilted sludge & other material from sewage components by mechanical transport including loading unloading & stacking etc. Distance 2 Km. Cum for 2 km (PHE SOR wef 16.08.2024 It. No. 29.35.2, page no.03) (-) 20% of 20.25 for air voids = 4.05