Bangalore Development Authority Tender

Item-4 - Providing, Providing and fixing in position of High density poly ethylene Machinehole of 1200 mm internal diameter for all depths with top opening of 600mm, PE Machinehole chambers shall be on the basis of EN13598-2:9009 shall meet relevant BIS/ASTM standards and specifications. All chambers shall be of a solid single wall 100mm or greater thickness construction made of 100% virgin PE material without recycling or foam content. All chambers shall come with a prefabricated integrated base with apprpriate benching with a gredient of 1-2%. The Machinehole shall be seated on M10 cement concrete (1:3:6) of 200mm depth. The inlet pipes to be connected with elastomer seal for a flexible connection of pipes according to EN 681-1. The Machinehole shall have straight channel DN 200 with four extra inlets DN 200/160/110, 45o and 90o right and left and drop arrangement if required and Outlet DN 200/160/110 including steps. The Machinehole shall also be designed to receive house connection at shaft level as per requirement. In case the system is made of midular parts then triple safety (three sided lip/element) seal according to standard practices to be used to connect the parts. Machinehole shall have corrossion resistance steps vertical step distance 25 cms in order to safe guard against uplift pressure, Machinehole should have solid horizontal re-inforcement ribs of appropriate thickness and width. These ribs should be stratagically placed at regular intervals all along the outside of the shaft of the Machinehole. During installation, special care must be taken to ensure proper compaction of the excavated earth with proctar density of 95%, below and around the Machinehole, suitably anchored over concrete to take traffic load without settlementincluding cost and conveyances of all materials, labour, lead and lifts charges etc. including loading and unloading complete as directed by the Engineer in charge- HDPE Machinehole of 1200mm dia and 3.0 m to 4.0 m height

Item-5 - Providing and fixing in position of High density poly ethylene Machinehole of 1200 mm internal diameter for all depths with top opening of 600mm, PE Machinehole chambers shall be on the basis of EN13598-2:9009 shall meet relevant BIS/ASTM standards and specifications. All chambers shall be of a solid single wall 100mm or greater thickness construction made of 100% virgin PE material without recycling or foam content. All chambers shall come with a prefabricated integrated base with apprpriate benching with a gredient of 1-2%. The Machinehole shall be seated on M10 cement concrete (1:3:6) of 200mm depth. The inlet pipes to be connected with elastomer seal for a flexible connection of pipes according to EN 681-1. The Machinehole shall have straight channel DN 200 with four extra inlets DN 200/160/110, 45o and 90o right and left and drop arrangement if required and Outlet DN 200/160/110 including steps. The Machinehole shall also be designed to receive house connection at shaft level as per requirement. In case the system is made of midular parts then triple safety (three sided lip/element) seal according to standard practices to be used to connect the parts. Machinehole shall have corrossion resistance steps vertical step distance 25 cms in order to safe guard against uplift pressure, Machinehole should have solid horizontal re-inforcement ribs of appropriate thickness and width. These ribs should be stratagically placed at regular intervals all along the outside of the shaft of the Machinehole. During installation, special care must be taken to ensure proper compaction of the excavated earth with proctar density of 95%, below and around the Machinehole, suitably anchored over concrete to take traffic load without settlementincluding cost and conveyances of all materials, labour, lead and lifts charges etc. complete including loading and unloading as directed by the Engineer in charge- HDPE Machinehole of 1200mm dia and 4.0 m to 5.0 m height

Item-6 - Providing PVC-U INDIVIDUAL U.G.D House service connection (which shall be laid from inside the customer property ) which includes: a)Supply of PVC-U pipe (b) providing and fixing of 315 mm dia the PE Inspection chambres with lid consisting of inlet & outlet arrangements with base, riser of minimum 0.42 m depth which includes earth work,fixing in CC-1:2:4 with appurtenances., complete. (c) civil works like Earthwork excavation for the pipeline trenches for laying of PVC-U pipes for the house connections in all types of soils , disintegrated rock,soft rock, hard rock, including cutting of any road using , crossing drains, compound, Dismantling of existing structures like culverts, bridges, retaining walls and other structure comprising of masonry, c.c. wood work, steel work, including T & P and scaffolding wherever necessary sorting the dismantled material, disposal of unserviceable and stacking the serviceable material and raising to the existing ground level with all lifts and lead , restoring the damaged portions inside or outside the property premises, refilling the portions of trenches that are dug open including linking to existing sewer network with appurtenances, complete.including cost and conveyances of all materials, labour, lead and lifts charges etc. including loading and unloading complete as directed by the Engineer in charge- 110 mm Dia.

Item-7 - Crack Groove Cutting: Groove shall be cut using hand held electrically operated concrete cutting machine of size of 50 mm wide and 75 mm deep on each side of the crack to form as "V" groove all along the crack to fill the polyester resin/ Epoxy putty (horizontal and vertical cracks). After the groove cutting, the concrete shall be removed from the groove using the pneumatic concrete chipping machine to form "V" groove. The item includes the cost of hire charges for all machineries, tools and barges and all labour charges etc., including loading and unloading complete as directed by the Engineer in charge

Item-8 - Construction of Granular Sub-Base by Mix in Place Method by providing well graded Gravel, spreading in uniform layers with motor grader on prepared surface, mixing by mix in place method with rotavator at OMC, and compactingwith smooth wheel roller to achieve the desired density, complete as per Technical Specification.including cost and conveyances of all materials, labour, lead and lifts charges etc. including loading and unloading complete as directed by the Engineer in charge

Item-9 - Providing, laying, spreading and compacting graded stone aggregate to Wet Mix Macadam specification including premixing the Material with water at OMC in mechanical mix plant carriage of mixed Material by tipper to site, laying in uniform layers with paver/grader in sub-base/base course on well prepared surface and compacting with vibratory roller to achieve the desired density.including cost and conveyances of all materials, labour, lead and lifts charges etc. including loading and unloading complete as directed by the Engineer in charge

Item-10 - Construction of Roller Compacted Concrete Pavement (RCCP) with coarse and fine aggregates conforming to IS:383:2016, the size of coarse aggregate not exceeding 25 mm with minimum aggregate cement ratio of 5:1 and with minimum cement content of 310 kg/m3, aggregate gradation to be as per Table 1500.3. After blending, mixing in concrete mixer at optimum moisture content, transporting to site, laying with wheel barrows or steel pans or with mechanical paver, compacting with 80-100 kN smooth wheel, tandem vibratory roller, to achieve, the designed flexural strength, finishing and curing as per drawings and Technical Specification including cost and conveyances of all materials, labour, lead and lifts charges etc. including loading and unloading complete as directed by the Engineer in charge

Item-11 - Providing and applying Primer Coat with bitumen emulsion (SS-1) conforming to IS 8887 on prepared surface of stabilized soil including cleaning of surface and spraying primer at the rate of 1.0 kg/m2 using mechanical means as per IRC Technical Specification.including cost and conveyances of all materials, labour, lead and lifts charges etc. complete including loading and unloading as directed by the Engineer in charge.

Item-12 - Providing and applying Tack Coat with RS1 Bituminous Emulsion using emulsion pressure distributor at the rate of 0.20 kg/m2 on the prepared bituminous surface cleaned with mechanical broom.including cost and conveyances of all materials, labour, lead and lifts charges etc. complete including loading and unloading as directed by the Engineer in charge.

Item-13 - Providing and laying Bituminous Macadam with 100 tph capacity hot mix plant batch type using crushed aggregates of specified grading premixed with bituminous binder VG-30 @ 3.3% by weight of mix, transported to site, laid over a previously prepared surface with mechanical paver finisher to the required grade, level and alignment and rolled as per clauses 501.6 and 501.7 to achieve the desired compaction.including cost and conveyances of all materials, labour, lead and lifts charges etc. complete including loading and unloading as directed by the Engineer in charge.

Item-14 - Providing and laying Semi Dense Bituminous Concrete with 40/60 TPH capacity hot mix plant batch type using crushed aggregates of specified grading premixed with bituminous binder VG-30 @ 5% by weight of mix and filler, transported to site, laid over a previously prepared surface with mechanical paver finisher to the required grade, level and alignment and rolled as per MoRTH V revision including cost and conveyances of all materials, labour, lead and lifts charges etc. complete including loading and unloading as directed by the Engineer in charge

Item-15 - Providing Size Stone Masonry with hard stone in foundation & plinth with Cement mortar 1:6 (1 cement : 6 coarse sand) as per spection including cost and conveyances of all materials, labour, lead and lifts charges etc. complete including loading and unloading as directed by the Engineer in charge

Item-16 - Providing and laying in position Cement Concrete for all Sub structures of building, Irrigation works, Sub structure works of bridges, Drain works & other parallel works from 0.50m to 3.50 m height. The granite/trap/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 lead & 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.M20 Design Mix Using 20 mm nominal size graded crushed coarse aggregates.including cost and conveyances of all materials, labour, lead and lifts charges etc. complete including loading and unloading as directed by the Engineer in charge.

Item-17 - Supplying, fitting and placing TMT FE 550 / 550D Steel Reinforcement including cost of all materials, machinery, labour, cleaning, straightening, cutting, bending, hooking, laping/welding joints, tying with binding wire /soft annealed steel wire and other ancilary operations complete as per drawing and technical specification.All other type of structures including cost and conveyances of all materials, labour, lead and lifts charges etc. complete including loading and unloading as directed by the Engineer in charge