Annual Maintenance of Sewage collection system at CSIR-CECRI campus, Karaikudi

Amount

Cleaning and desilting of gully trap chamber, including removal of rubbish mixed with earth etc. and disposal of same, all as per the direction of Engineer-in-charge.

Cleaning and desilting of manhole up to a depth of 1.00 metre, including removal of rubbish mixed with earth, tree roots or other waste materials by mechanical means etc. and disposal of same, all as per the direction of Engineer-in-charge.

Cleaning and desilting of manhole up to a depth of 3.00 metre, including removal of rubbish mixed with earth, tree roots or other waste materials by mechanical means etc. and disposal of same, all as per the direction of Engineer-in-charge.

Cleaning of chocked sewer line by diesel running vehicle mounting hydraulic operated high pressure suction cum jetting sewer cleaning machine fitted with pump having 4000 litres suction capacity and 6000 litres water jetting tank capacity including skilled operator, supervising engineer etc. for cleaning and partial desilting of manholes and dechocking of sewer lines. Dechocking and flushing of sewer line from one manhole to another by high pressure jetting system of 2200 PSI for sewer line from 150 mm dia upto 300 mm

Dismantling of old S.W. pipes including breaking of joints and stacking of useful materials near the site within 50 m lead and disposal of unserviceable materials into municipal dumps : 150 mm diameter

Dismantling of old S.W. pipes including breaking of joints and stacking of useful materials near the site within 50 m lead and disposal of unserviceable materials into municipal dumps : 200 mm diameter

Excavating trenches by mechinical / manual means of required width for pipes, cables, etc including excavation for sockets, and dressing of sides, ramming of bottoms, for all depth, including getting out the excavated soil, and then returning the soil as required, in layers not exceeding 20 cm in depth, including consolidating each deposited layer by ramming, watering, etc. and disposing of surplus excavated soil as directed, within a lead of 50 m:

All kinds of soil

Pipes, cables etc. exceeding 80 mm dia. but not exceeding 300 mm dia

Earth work in excavation by mechanical means (Hydraulic excavator) / manual means in foundation trenches or drains (not exceeding 1.5 m in width or 10 sqm on plan), including dressing of sides and ramming of bottoms, for all lift, including getting out the excavated soil and disposal of surplus excavated soil as directed, within a lead of 50 m.

All kinds of soil.

Providing and fixing PVC SWR pipes Type B conforming to IS:13592 including jointing with necessary fittings as directed by the Engineer-in-charge. 110mm diameter

Providing and fixing PVC SWR pipes Type B conforming to IS:13592 including jointing with necessary fittings as directed by the Engineer-in-charge. 150mm diameter

Providing and fixing PVC SWR pipes Type B conforming to IS:13592 including jointing with necessary fittings as directed by the Engineer-in-charge. 200mm diameter

12 mm cement plaster of mix:

1:6 (1 cement: 6 coarse sand)

Repairs to plaster of thickness 12 mm to 20 mm in patches of area 2.5 sq.meters and under, including cutting the patch in proper shape, raking out joints and preparing and plastering the surface of the walls complete, including disposal of rubbish to the dumping ground, all complete as per direction of Engineer-in-Charge.

With cement mortar 1:4 (1cement: 4 coarse sand)

Providing and fixing soil, waste and vent pipes :

100 mm dia

Sand cast iron S&S pipe as per IS: 1729

Providing and fixing square-mouth S.W. gully trap class SP-1 complete with C.I. grating brick masonry chamber with water tight C.I. cover with frame of 300 x 300 mm size (inside) the weight of cover to be not less than 4.50 kg and frame to be not less than 2.70 kg as per standard design:

150 x 100 mm size P type

With common burnt clay F.P.S. (non modular) bricks of class designation 7.5

Making connection of drain or sewer line with existing manhole including breaking into and making good the walls, floors with cement concrete 1:2:4 mix (1 cement : 2 coarse sand : 4 graded stone aggregate 20 mm nominal size) cement plastered on both sides with cement mortar 1:3 (1 cement : 3 coarse sand), finished with a floating coat of neat cement and making necessary channels for the drain etc. complete :

For pipes 100 to 250 mm diameter

Constructing brick masonry manhole in cement mortar 1:4 ( 1 cement : 4 coarse sand ) with R.C.C. top slab with 1:1.5:3 mix (1 cement : 1.5 coarse sand (zone-III) : 3 graded stone aggregate 20 mm nominal size), foundation concrete 1:4:8 mix (1 cement : 4 coarse sand (zone-III) : 8 graded stone aggregate 40 mm nominal size), inside plastering 12 mm thick with cement mortar 1:3 (1 cement : 3 coarse sand) finished with floating coat of neat cement and making channels in cement concrete 1:2:4 (1 cement : 2 coarse sand : 4 graded stone aggregate 20 mm nominal size) finished with a floating coat of neat cement complete as per standard design :

Inside size 120x90 cm and 90 cm deep including C.I. cover with frame (medium duty) 500 mm internal diameter, total weight of cover and frame to be not less than 116 kg (weight of cover 58 kg and weight of frame 58 kg) :

With common burnt clay F.P.S. (non modular) bricks of class designation 7.5

Extra for depth for manholes :

Size 120x90 cm

With common burnt clay F.P.S. (non modular) bricks of class designation 7.5

Disposal of building rubbish / malba / similar unserviceable, dismantled or waste materials by mechanical means, including loading, transporting, unloading to approved municipal dumping ground or as approved by Engineer-in-charge, beyond 50 m initial lead, for all leads including all lifts involved.

Dismantling C.I. or asbestos pipe with fittings and clamps including stacking the material within 50 metres lead : 100mm dia pipes

Clearing grass and removal of the rubbish up to a distance of 50 m outside the periphery of the area cleared.

Clearing jungle including uprooting of rank vegetation, grass, brush wood, trees and saplings of girth up to 30 cm measured at a height of 1 m above ground level and removal of rubbish up to a distance of 50 m outside the periphery of the area cleared.

Trimming up of tree branches which is affecting on the building girth upto 60cm including cutting of trunks and branches, removing the same and stacking of serviceable material and disposal of unserviceable material lead upto 1000m as directed by the Engineer-in-charge

Cleaning the man holes/ Septic tanks including removal of blockages in the existing lines by mechanical means including transportation charges as directed by the Engineer-in - charge (6000litre capacity)

Wall painting with premium acrylic emulsion paint of interior grade, having VOC (Volatile Organic Compound ) content less than 50 grams/ litre of approved brand and manufacture, including applying additional coats wherever required to achieve even shade and colour.

Two coats

Applying priming coats with primer of approved brand and manufacture, having low VOC (Volatile Organic Compound ) content.

With water thinnable cement primer on wall surface having VOC content less than 50 grams/litre

Removing dry or oil bound distemper, water proofing cement paint and the like by scrapping, sand papering and preparing the surface smooth including necessary repairs to scratches etc. complete.

Painting with synthetic enamel paint of approved brand and manufacture of required colour to give an even shade:

Two or more coats on new work over an under coat of suitable shade with ordinary paint of approved brand and manufacture

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)