CONSTRUCTION OF ONE END RAMP AT CLP

Earth work in excavation by mechanical means (Hydraulic excavator) means over areas (exceeding 30 cm in depth, 1.5 m in width as well as 10 sqm on plan) including getting out in all kind of soil and disposal of excavated earth lead upto 50 m and lift upto 1.5m complete all as specified and directed . Note : The old existing road with all layer and strata below old existing surface treated as in any kind of soil for excavation, returning filling and removal. Any type of material obtained during excavation of old existing surface and below strata treated as any kind of soil.”complete all as specified and directed.

M & L for Moorum / red bajari in paving, forming enbankment including raising (or lowering) earth, spreading in layers n exc 30 cm thick, watering ramming/rolling and finishing to required size, shape, etc. not exc 1.5 mm high from base complete all as specified and directed.

M&L for for laying and compacting 200mm thick (compacted thickness) Granular Sub Base Course (GSB) grading as per Grade V as specified Table-1 of MoRTH specifications for Road and Bridge works, 2013, in a single layer over compacted subgrade with natural sand crushed gravel, crushed stone, crushed slag, or combination thereof as per the grading required. The materials are mechanically mixed, spread and levelling on subgrade by using motor grader of adequate capacity 80-100 KN static weight for chieving required compaction density of at least 98% of the Maximum dry Density. Consolidating to required gradient and camber complete all as specified and directed with finished surface tolerances as per Table 400-1 of MoRTH specifications for Road and Bridge works, 2013 complete all as specified and directed.

M&L for providing and laying Dry lean Concrete (DLC) 100mm thick of aggregate gradation as per Table 1 of SP 49: 2014 having 7 days average compressive strength not less than 7 Mpa. Minimum cement content not less that 140 Kg/Cum DLC mixed in Batching Plant, transported to site and laid by electronic sensor paver including spreading and compacting using high amplitude tamping bars of paver (initial compction) further by double drum smooth wheeled vibratory rollers with 80-100 KN static weight to achieve minimum dry density, necessary finishing etc complete all as specified and tolerances to be as per table 900-1 of MoRTH specifications for Road and Bridge work 2013 complete all as specified and directed.

M&L for polythene film, 150 micron thick, laid on a coat of bitumen primer @ 0.30 to 0.50 Kg per Sqm complete all as specified and directed .

M&L for pavement quality concrete (PQC) of minimum 28 days field Flexural strength of 45 Kg/ Sqcm or 4.5 Mpa aggregate gradation as per Table 3 of IRC 15-2017 coarse aggregate of clean, hard strong, dense, non-porous and durable pieces of crushed stone or gravel, fine aggregates of clean natural sand or crushed stone sand or combination of both using minimum 360 kg/cum of cement with non-circular, virgin synthetic fibre of 12-18 mm length, specific gravity 1.34 to 1.39, UV stable, alkali resistant with minimum melting temperature as 240degree C and minimum tensile tensile strength of 300 Mpa and the rate as specified by the manufacturer. PQC laid, spread and compacted with slip-form paver, including curing and tining by Texturing cum Curing Machine complete all as specified and directed. Required texturing to be done as specified in Clause 10.1.14 and table 9 of IRC: 15-2017 complete all as specified and directed.

Removing excavated material exc. 250m and n exc 500m depositing where directed at a level n exc. 1.5 m above the starting point complete all as specified and directed.

Formwork to sides of concrete foundations, footings, base of columns, raft and raft beam, sides of soffits (if any) of foundation and plinth beams, and similar work, vertical or to batter of rough finished surfaces of concrete.

Material and labour for forming 25 mm width expansion joint in concrete slab for full depth of POC. Early entry saw and ubsequent cutting by using diamond bit cutter of appropriate size, straight and smooth edges. Joint cleaned thoroughly with application of compressed air. Joint shall be made dry, vacuum cleaned and free of dirt, oil, vegetation and other debris. The joint then filled with pre-molded 25 mm thick compressible polyethylene closed cell type filler board as specified thereafter application of two coats of primer with thin brush by forward and backward movement at an interval of 30 minutes before placing the backup rod and pouring the sealant Placing of closed cell medium density, crossed linked polyethylene foam backup rod of 30 mm dia, over filler board and filled with polyurethane based sealant complying with BS 5212, BS 4254 and EN-141875-2003 with minimum movement accommodation factor (MAF) of+/- 30% having minimum 10 year performance guarantee applying masked tape on the edges of joints and removing the masking tape after filling of sealant as per the method specified by the manufacture with and including 20mm dia mild steel dowel bars 50cm long (25cm in each slab) with ferrules, spaced at 300mm centres, including boring, formwork and preformed filler for dowels complete as specified and directed.

Material and labour for forming dummy/contraction joint with an initial saw cut of 3 mm soon after the concrete has set, upto a depth of 1/3 rd to 1 /4th the thickness of the slab , widening the first saw cut to 6 mm and 24 mm deep by using diamond bit cutter of appropriate size straight and smooth edges Joint cleaned thoroughly with application of compressed air. Joint shall be made dry, vacuum cleaned and free of dirt, oil vegetation and other debris. Application of two coats of primer with thin brush by forward and backward movement at an interval of 30 minutes before placing the backup rod and pouring the sealant. Placing of closed cell, medium density, crossed linked polyethylene foam backup rod of 8 mm dia, application of bond breaker tape on top of back up rod for complete width of the joint and filled with polyurethane based sealant complying with BS 5212 , BS 4254 and EN-141875-2003 with minimum movement accommodation factor (MAF) OF +/- 30% having minimum 10 year performance guarantee, applying masked tape on the edges of joints and removing the masking tape after filling of sealant as per the method specified by the manufacturer with and including 20mm dia mild steel dowel bars 50cm long (25cm in each slab) with ferrules, spaced at 300mm centres, including boring, formwork and preformed filler for dowels complete as specified and directed. complete all as specified & directed.