REPAIR TO PAINTING AND JOINT FILLING AT TARMAC AREA AT AHMEDABAD UNDER GE (AF) CHILODA

Demolition of Cement Concrete of any description and in any position not otherwise specifically provided for

Earth work in any kind of soil, excavation by mechanical means (Hydraulic excavator) / Manual means over areas (exceeding 30 cm in depth, 1.5 m in width as well as 10 sqm on plan) including getting out and disposal of excavated earth lead upto 50 m and lift upto 1.5m, as directed by Engineer-in charge. (Removal of existing lights on link to be done by user/SRE Rep)

M & L for Laying and compacting 300 mm thick (compacted thickness) Granular Sub Base Course (GSB) in two layers of 150mm thick each (grading as per Grade I as specified Table 400-1 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 the subgrade by using motor grader of adequate capacity or manual, and rolling with vibratory of capacity 80-1 00 KN static weight /manual for achieving required compaction density of atleast 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 900-1 of MoRTH specifications for Road and Bridge works, 2013 all as specified and directed by Engineer in Charge

M & L for Laying for 225 mm thick (compacted thickness ) WMM laid in three layers of 75 mm each. Wet Mix Macadam (WMM) grading as per table 400-13 of MoRTH specifications for Road and Bridge works 2013 manufactured in WMM plant material comprising of clean, crushed, graded aggregate and granular material premixed with water to a dense mass, spreading with paver / manual and rolling with vibratory static weight and consolidating to required gradient and camber complete all as specified and directed. The finished surface tolerances to be as per Table 900-1 of MoRTH specifications for Road and Bridge works 2013 all as specified and directed by Engineer in Charge

Providing and Laying Dry lean Concrete (DLC) 150 mm thick of aggregate gradation as per Table 1 of SP 49 :2014 having 7 day average compressive strength not less than 7 MPa Minimum cement content not less than 140 Kg/Cum DLC mixed in Batching Plant, transported to site and laid by electronic sensor paver or manually including spreading and compacting using high amplitude tamping bars of paver (initial compaction) / manual further by vibratory to achieve minimum dry density not less than 98% of max imum 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 all as specified and directed by Engineer in Charge

M & L for 10 mm thick sand cushion with clean river sand duly clear of residual , organic and deleterious materials spread evenly to uniform thickness laid over DLC layer as specified and directed. (No additionaI amount to be paid for overlap)

M & L for Supplying and laying 400 micron thick HDPE sheet (Virgin Quality) / Polythene sheet water proof, wrinkle free without puncture having minimum weight 390 gm/Sqm over tack coat sand cushion as specified in the design with overlap between adjacent strips and at transverse joints as minimum 300mm.

M & L Pavement quality concrete(PQC) of minimum 28 days field Flexural strength of 45Kg/ 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 equivalent dia 15-40 micron, minimum melting temperature as 240 °C and minimum tensile strength of 300 Mpa and at the rate as specified by the manufacturer. PQC laid, spread and compacted with slip-form paver of minimum 7.50 m width or manually, including curing and tining complete all as specified and directed. Requ ired surface texturing to be done as specified in IRC' 15-2017 all as specified and directed by Engineer in Charge(Installation of taxiway lights, connection and positioning of lights etc to be done by user rep/SRE Rep during exicution of work)

M & L for Forming 20 mm width expansion joint in concrete slab for full depth of PQC. Early entry saw and subsequent cutting by using diamond bit cutter of appropriate size. straight and smooth edges. Join 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 20 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 25 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 complete as specified and directed by Engineer in Charge.

M & L for Cutting of construction joints 25 mm deep and 10 mm wide by early entry saw cut 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 12 mm dia, application of bond breake tape on top of back up rod for complete width of the joint and filled with polyurethane based sealan complying with BS-5212, BS 4254 and EN- 141875-2003 with minimum movement accommodation factor (MAF) of +I- 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 complete as specified and directed by Engineer in Charge