PROVN OF ALTERNATE ROADS CONNECTING MAIN ROAD TO BOTH ENTRY GATES OF STORAGE AREA AT AF STN HASIMARA UNDER GE (AF) HASIMARA.

Note 1:- (Applicable for all parts/items) : The bidders/contractors are advised to read tender documents & all corrigendum/amendments and general condition of contracts before entry/quoting the rates. Note 2:- Attention to bidder is hereby invited to upload revised BOQ if published during their bid submission. Uploading of incorrect/ pre-revised BOQ shall be treated as non bonafide and rejected. Fixed credit has been given in technical documents which shall be taken into account during acceptance of bid/tender.

Surface excavation n.exc (not exceeding) 30 cm deep and averaging 15cm deep and getting out soft/loose soil.

Removal of excavated soil to a distance exc 250 m and not exc 500 M and depositing where directed complete all as specified and directed.

Scarifying or picking gravelled, macadam or bituminous macadam exc 50 mm and n exc 100 mm deep surfaces in area exc 400 sqm.

Rolling and consolidating road formation surfaces in cutting with 8 to 10 tonne power roller including watering as necessary filling in hallows and depressions required true gradient and camber complete all as specified and directed.

M&L for laying and compacting 150 mm thick (Compacted thickness) granular sub base (GSB) grade V in single layer of 150mm each (grading and physical requirements as per table 400-1 and 400- 2 respectively of MORTH specifications for road and bridge works) over compacted sub grade with natural sand, crushed gravels, crushed stone, crushed slag or combination thereof as per grading required. The material are mechanically mixed, spread and levelled on the sub grade by using motor grader of adequate capacity and rolling with vibratory roller of capacity 80 to 100 KN static weight for acheiving required compaction density of atleast 98 % of maximum dry density. Consolidating to required gradient and camber complete all as specified and directed. Finish surface tolerance as per table 900-2 of MORTH specification for road and bridge works, 2013 and all as specified and directed.

M&L for laying and compacting 150 mm thick (Compacted thickness) of Wet mixed macadam (WMM) in two layers of 75mm thick manufactured in WMM paint (Physical requirement and grading as per table 400-12 and 400-13 respectively of MORTH specifications for Road and Bridge works), Material comprising of clean, crushed, graded aggregate and Granualar material premixed with water to a dense mass, spreading using sensor pavor including spreading and compacting using double drum smooth wheeled vibratory rollers with 80-100KN static weight for acheiving required compaction density of atleast 98% of maximum dry density and rolled consolidated to required gradient and camber complete as specified If water absorption value of coarse aggregate is greater that 2% the soundness test shall be carried out on the material delivered at site as per IS 2386 (Part V). The finished surface tolerances as per as per table 900-1 of MORTH specification for road and bridge work all as specified and directed.

M&L for Dry Lean Concrete (DLC) of campacted thickness 100mm in a single layer of aggregate gradation as per table 1 of SP 49:2014 having 7 day average compressive stength not less than 10 Mpa. Min cement content not less than 150 Kg/Cum. DLC mixed in Batching plant, transported to site and laid by electronic senser paver including spreading and compacting using high ampitude ramping bars of paver (initial compaction) further by double drum smooth wheeled vibratory rollers with 80-100 KN static weight to achieve minimum dry density not less than 98% of that achieved during trial length construction, necessary finishing etc complete all as specified and directed.

M&L for sand cushion with clean river sand duly clear of residual, organic and deleterious materials spread evenly to uniform thickness laid over DLC layer. The sand cushion must not contain stones/other hard pr uneven matter as specified and directed.

M&L for 400 Micron HDPE sheet (Virgin quality) water proof wrinkle free polythene sheeting without punture having minimum weight 390gm/Sqm over tack coat/sand cushion as specified in the design with overlap between adjacent strips as minimum 300mm and transverse joints at ends as minimum 300mm complete all as specified and directed Maximum standard width available and as approved by GE without joints, manufactured by multilayer technology using 100% virgin raw material, conforming to IS 10889 all as specified and directed.

M&I for pavement quality concrete (PQC) 260mm thick of minimum 28 days field texural strength of 45 kg/Sq cm or 4.5 Mpa aggregate gradation as per Table 3 of IRC 15:2017, coarse aggregate of clean, hard, strong, dense non-porus and durable pieces of crushed stone or gravel, fine aggregate of clean natural sand or crushed stone and combination of both, using minimum 360Kg/cum of cement content with non circular synthetic fibre (fibres shall be as per specifications given by E-in-C's Branch policy letter No 95510/Policy/Mon/E2W(RI-1) dated 26 Oct 2020). Rate of dosage of fibres as specified by manufactfer PQC laid, spread and compacted with paver including during and tinning by Texturing cum curing Machine complete all as specified and directed. Required surface texturing to be made as specified in Clause 10.1.14 and Table 9 of IRC 15:2017 all as specified and directed.

Supply only non circular, vigin, synthetic, monofilament polyester fibres of length 12mm to 18mm, specific gravity 1.34 to 1.39 UV stable, alkali resistance equivalent diameter 15-40 micron, minimum melting temperature 250 degree Centigrade and minimum tensil strength 300 MPa be used as per manufacturer specification, in design. All properties specified to meet test parameters as per IS 16481:2016. For detailed particular Specifications refer E-in-C's Branch policy letter No 95510/Policy/Mon/E2W(RI-1) dated 26 Oct 2020. Design Mix to be prepared after incorporating fibres as specified and directed.

M&L for forming contraction (dummy) joints of 8mm wide and depth 1/3 to 1/4 the thickness of slab (260mm thick PQC) using high RPM diamond cutter with an initial saw cut of 3 mm soon after concrete has set, wideining the the first saw cut to 8mm width and 24 mm deep from the top using diamond bit cutter of appropriate size, straight and smooth edges Joints cleaned throughly with application of compressed air. Joint shall be made dry vaccum 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 and foam backup rod of 10mm dia, application of bond breaker tape on top of backup rod for complete width of join and filled with polyurethene based sealant complying with BS -5212, BS-4254 and EN 141875-2003 with minimum movement accomodation factor (MAF) +/- 30% having minimum 10 years performance gaurantee applying masked tape on the edges of joints to prevent accidental spill age of sealant and removing the masking tape after filling of sealant as per the method specified and directed by the manufacturer.

M&L for cutting of construction joints 25mm deep and 10mm wide by early entry saw cut using diamond bit cutter of appropriate size, straight and smooth edges Joints cleaned thoroughly with application of compressed air.Joint shall be made dry vaccum 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 and foam backup rod of 12mm dia, application of bond breaker tape on top of backup rod for complete width of joint and filled with polyurethene based sealant complying with BS -5212, BS-4254 and EN 141875-2003 with minimum movement accomodation factor (MAF) +/- 30% having minimum 10 years peroforming gaurantee applying masked tape on the edges of joints to prevent accidental spill age of sealant and removing the masking tape after filling of sealant as per the method specified and directed by the manufacturer.