TCRIP Reconstruction of Damaged Retaining Wall (right side) in kerala kaumudi side of pettah ROB in corridor 04

Amount

App: Reconstrcution of retaining wall

2.2 Clearing grass and removal of rubbish up to a distance of 50 metres outside the periphery of the area

2.4.3.B Dismantling of existing structures like culverts, bridges, retaining walls and other structure comprising of masonry, cement concrete, wood work, steel work, including T&P and scaffolding wherever necessary, sorting the dismantled material, disposal of unserviceable material and stacking the serviceable material with all lifts and lead of 1000 metres <br> Dismantling Brick / Tile work - In cement mortar <br>

2.4.2.B Dismantling of existing structures like culverts, bridges, retaining walls and other structure comprising of masonry, cement concrete, wood work, steel work, including T&P and scaffolding wherever necessary, sorting the dismantled material, disposal of unserviceable material and stacking the serviceable material with all lifts and lead of 1000 metres <br> Prestressed / reinforced cement concrete grade M-20 & above - By Mechanical Means<br>

2.4.4.D Dismantling of existing structures like culverts, bridges, retaining walls and other structure comprising of masonry, cement concrete, wood work, steel work, including T&P and scaffolding wherever necessary, sorting the dismantled material, disposal of unserviceable material and stacking the serviceable material with all lifts and lead of 1000 metres <br> Dismantling Stone Masonry - Dry rubble masonry<br>

12.1.B.1 Earth work in excavation of foundation of structures as per drawing and technical specification, including setting out, construction of shoring and bracing, removal of stumps and other deleterious matter, dressing of sides and bottom and backfilling with approved material.Ordinary Soil - Depth upto 3m - Mechanical Means <br>

12.4 Plain cement concrete 1:3:6 nominal mix in foundation with crushed stone aggregate 40 mm nominal size mechanically mixed, placed in foundation and compacted by vibration including curing for 14 days.

12.8.1.C Plain/Reinforced Cement Concrete in Open Foundation complete as per Drawing and Technical Specifications <br>RCC Grade M20 - Using Concrete Mixer - (Without formwork) <br>e

od24488/2020_2021 null Random Rubble Stone masonry (coursed/uncoursed) work in cement mortar 1:3 for substructure complete as per drawing and Technical Specifications Using Departmental Rubble

13.4.A Random Rubble Stone masonry (coursed/uncoursed) work in cement mortar 1:3 for substructure complete as per drawing and Technical Specifications

12.8.1.C.1 Plain/Reinforced Cement Concrete in Open Foundation complete as per Drawing and Technical Specifications <br>RCC Grade M20 - Using Concrete Mixer <br>

12.40 Supply, Fitting and Placing un- coated HYSD bar Reinforcement in Foundation complete as per Drawing and Technical Specifications

3.16 Construction of embankment with approved material obtained from borrow pits with all lifts and leads, transporting to site, spreading, grading to required slope and compacting to meet requirement of table 300-2.

4.1.B.2 Construction of granular sub-base by providing graded material, spreading in uniform layers with motor grader on prepared surface, mixing by mix in place method with rotavator at OMC, and compacting with vibratory roller to achieve the desired density, complete as per clause 401. <br>Grading-VI - For sub base cum drainage layer - Mix in Place Method<br>

4.12 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 in sub- base / base course on well prepared surface and compacting with vibratory roller to achieve the desired density.

5.1.a Providing and applying primer coat with bitumen emulsion ( SS) on prepared surface of granular Base including clearing of road surface and spraying primer at the rate of 0.70 - 1.0 kg/sqm using mechanical means.

5.2.a Providing and applying tack coat with bitumen emulsion( RS) using emulsion pressure distributor at the rate of 0.20 - 0.30 kg per sqm on the prepared bituminous surface cleaned with mechanical broom.

5.3.2.a Providing and laying bituminous macadam with 80-100 TPH hot mix plant producing an average output of 75 tonnes per hour using crushed aggregates of specified grading premixed with bituminous binder (VG 30), transported to site, laid over a previously prepared surface with paver finisher to the required grade, level and alignment and rolled as per clauses501.6 and 501.7 to achieve the desired compaction.<br> For Grading II - (19 mm nominal size)<br>

5.6.2.a Providing and laying bituminous concrete with 80-100 TPH hot mix plant producing an average output of 75 tonnes per hour using crushed aggregates of specified grading, premixed with bituminous binder( NRMB) @ 5.4 per cent of mix and filler, transporting the hot mix to work site, laying with a hydrostatic paver finisher with sensor control to the required grade, level and alignment, rolling with smooth wheeled, vibratory and tandem rollers to achieve the desired compaction as per MORTH specification clause No. 507 complete in all respectsGrading - II (13.2 mm Nominal Size)<br>

4.16.1 Construction of footpath/ separator by providing a 150 mm compacted Granular sub base material as per clause 401 and 25 mm thick cement concrete grade M15, over laid with precast concrete tiles in cement mortar 1:3 including provision of all drainage arrangements but excluding kerb channel. <br>

8.23.A Providing and erecting a "W" metal beam crash barrier comprising of 3 mm thick corrugated sheet metal beam rail, 70 cm above road/ground level, fixed on ISMC series channel vertical post, 150 x 75 x 5 mm spaced 2 m centre to centre, 1.8 m high, 1.1 m below ground/road level, all steel parts and fitments to be galvanised by hot dip process, all fittings to conform to IS:1367 and IS:1364, metal beam rail to be fixed on the vertical post with a spacer of channel section 150 x 75 x 5 mm, 330 mm long complete as per clause 811.3 <br>

S Mohana Kumar