Bengaluru Water Supply And Sewerage Board Tender

Code04 - Earth work excavation for pipeline trenches in all kinds of soils by mechanical means above 600 mm trench width as per drawing and technical specifications, including setting out, construction of shoring, strutting, barricading, caution lights, bracing, using sight railsand boning rods at every 100 mm whevere necessary as directed, removal of stumps and other deleterious matter, dressing of sides and levelling the bottom of trench to the extent required, utilising the available excavated earth locally for the work etc., and all other appurtenances complete in the following strata.

Code05 - Refilling available earth around trenches or pipelines, cables in layers not exceeding 20 cms in depth, compacting each deposited layer by ramming after watering with a lead upto 50 m , and lift upto 1.5 m. Including cost of all labour complete as per specifications.

Code06 - Providing and laying in position plain cement concrete for levelling course for all works in foundation. The granite or trap or basalt crushed graded coarse aggregates and fine aggregates as per relevant IS Codes machine mixed, laid in layers not exceeding 150 mm thickness, well compacted using plate vibrators, including all leadand lifts, cost of all materials of quality, labour, Usage charges of machineries, curing and all the other appurtenances required to complete the work as per technical specifications The cost of steel reinforcementand formwork shall be paid separately

Code07 - Providing and laying in position Cement Concrete for all Sub structures of building, Irrigation works, Sub structure works of bridges, Drain worksand other parallel works from 0.50m to 3.50 m height. The granite or trap or basalt crushed graded coarse aggregates and fine aggregates as per relevant IS Codes machine mixed with super plasticisers, laid in layers, well compacted using needle vibrators, providing weep holes wherever necessary, including all leadand lifts, cost of all materials of quality, confirming to the requirements of relevant IS codes, labour, Usage charges of machinery, curing and all other appurtenances required to complete the work as per technical specifications.

Code08 - Add additionalities for formwork, centringand Scaffolding. Cement Concrete Drain Walls- 35 percentage for Drains

Code09 - Providing and laying in position Cement Concrete for all Sub structures of building, Irrigation works, Sub structure works of bridges, Drain worksand other parallel works from 0.50m to 3.50 m height. The granite or trap or basalt crushed graded coarse aggregates and fine aggregates as per relevant IS Codes machine mixed with super plasticisers, laid in layers, well compacted using needle vibrators, providing weep holes wherever necessary, including all leadand lifts, cost of all materials of quality, confirming to the requirements of relevant IS codes, labour, Usage charges of machinery, curing and all other appurtenances required to complete the work as per technical specifications.M25 Design Mix Using 20 mm nominal size graded crushed coarse aggregates

Code10 - Add additionalities for formwork, centringand Scaffolding. Foundation upto Plinth - a. Isolated 8 percentage Security Wall footings F1and F2

Code11 - Add additionalities for formwork, centringand Scaffolding. Plinth Beams of Buildings 50 Percentage Security Wall Plinthor Grade Beam

Code12 - Providing and laying in position Cement Concrete for all Super structures of building , Road works, Water works, Irrigation worksand super structure works of bridges upto 3.50 m height. The granite or trap or basalt crushed graded coarse aggregates and fine aggregates as per relevant IS Codes machine mixed with super plasticisers laid in layers, well compacted using needle vibrators. The cost includes all leadand lifts, cost of all materials, quality confirming to the requirements of relevant IS codes , labour, Usage charges of machinery, curing and all other appurtenances required to complete the work as per technicalspecifications.M25 Design Mix Using 20 mm nominal size graded crushed coarse aggregates Columns C1and C2

Code13 - Add additionalities for formwork, centringand Scaffolding. RCC ColumnsorShaft Slip Centering 70 Percentage Security Wall Columns

Code14 - Supplying, fitting and placing TMT FE 550or550D Steel Reinforcement including cost of all materials, machinery, labour, cleaning, straightening,cutting, bending, hooking, laping or welding joints, tying with binding wireorsoft annealed steel wire and other ancilary operations complete as per drawing and technical specification.

Code15 - Providing and constructing load bearing wall with Solid Concrete blocks of size 400x200x200mm having block density more than 1800kg or m3 and minimum compressive strength of 4.00 N or mm2 conforming to IS 2185 Part - I 2005 and constructed with CM 1:4 as per IS 2572:2005 including cost of all materials, labour, scaffolding and curing, usage charges of machinery etc complete as per specifications.

Code16 - Providing 15 mm cement plaster on the rough side of single or half brick wall of mix 1:4 1 cement: 4 fine sandincluding rounding off corners wherever required smooth rendering, providing and removing scaffolding, including cost of materials, labour, curing complete as per specifications and as per directions of Engineer-in-charge.External Plastering of 15mm thk for Security Wall

Code17 - Providing Cement mortar 1:4 1 cement : 4 fine sandincluding cost of all materials, labour and usage charges of machinery complete as per the direction of engineer incharge of work.

Code18 - Finishing walls with Acrylic Smooth exterior paint of required shade :New workTwo coat applied at 1.67L or 10 m² over and including priming coat of exterior primer applied at 2.20 kg or 10 m²with paint of approved quality to give an even shade, after thoroughly brooming the surface to remove all dirt, dust, mortar drops and foreign matter including preparing the surface even and sand paper smooth, cost of materials, labour complete as per specifications and as per directions of Engineer-in-charge. Exterior Wall painting weather proof

Code19 - Fencing with G.I. barbed wire Angle iron post placed at required distance embedded in cement concrete blocks, every 15th post, last but one end post and corner post shall be strutted on both sides and end post on one side only and provided with horizontal lines and two diagonals interwoven with horizontal wires, of barbed wire weighing 9.38 kg per 100 m minimum , between the two posts fitted and fixed with G.I. staples, turn buckles etc. complete. Cost of posts, struts, earth work and concrete work to be paid for separately. Payment to be made per metre cost of total length of barbed wire used. With G.I. barbed wire

Code20 - Supplying at site Angle iron postand strut of required size including bottom to be split and bent at right angle in opposite direction for 10 cm length and drilling holes upto 10 mm dia. etc. complete. ISA 50x50x5 with 100x100x5 MS plate welded with angle

Code21 - Rain water harvesting pit Providing and fixing factory made precast RCC perforated drain covers, having concrete of strength not less than M-25, of size 1000 x 450x50 mm, reinforced with 8 mm dia four nos longitudinaland 9 nos cross sectional T.M.T. hoop bars, including providing 50 mm dia perforations at 100 to 125 mm c or c, including providing edge binding with M.S. flats of size 50 mm x 1.6 mm complete, all as per direction of Engineer-in-charge.

Code22 - Providing to work spot rolling, lowering and placing in position RCC perforated rings in the already excavated pit including loading and unloading at both the destinations with all lead and lift with appurtenances., complete.

Code23 - Supplying, filling, spreadingand leveling stone boulders of size range 5 cm to 20 cm, in recharge pit, in the required thickness, for all leadsand lifts, all complete as per direction of Engineer-in-charge.900 mmx1100 mm

Code24 - Supplying UNPLASTICISED PVC pipes conforming to IS 16098:2013 with latest amendments ended with integral sockets with ISI mark and conveying to worksite, rolling and lowering into trenches, laying true to line and level and perfect linking at joints, testing and commissioning, including loading and unloading at both destinations and cuts of pipes wherever necessary including jointing of UPVC pipes with cost of elastomeric sealing rings and specials excluding cost of specials with jointing of approved type, with all labour, leadand lifts, including encasing the pipes alround to a depth of not less than 15 cms. with soft gravel or selected earth available from the excavation etc. complete and giving necessary hydraulic test to the required pressure as per ISS contractor will make his own arrangements for procuring water for testing etc. for Pipes of SN4, 110mm dia.

Code25 - Supply and delivery at site special moulded variety PVC elbows as per IS 7834 or1987 and fabricated as per IG124 or1984 with ISI mark with its latest amendments. 110 mm dia PVC Elbows

Code27 - Pathway with CC pavers Providing and laying 60mm thick factory made cement concrete paver block of approved shape and colour of M 30 grade made of CandD waste by block making machine with vibratory compaction laid in required pattern and including over 50mm thick compacted bed of coarse sand, filling the joints with fine sand etc. all complete as per the direction of Engineer-in-charge.

Code28 - Supplying and fixing M15 grade precast cement concrete Kerb stones for Roadway, Sidewalls and gutters fixed with CM 1:3 fixed and finsihed in line as per direction of Engineer in charge For 600 x 300 x 150 mm Kerb Stone

Code29 - Providing and fixing Steel work welded in built up sections orframed work, including cutting, hoisting, fixing in position and applying a priming coat of approved steel primer using structural steel etc. as required. In gratings, frames, guard bar, ladder, railings, brackets, gates and similar works including cost of materials, labour, usage charges of machinery complete as per specifications and as per directions of the Engineer-in-Charge.