Public Works Roads Department Tender

Boulder Apron Laid in Wire Crates Providing and laying of boulder apron laid in wire crates made with 4mm dia wire dia not less than 4mm GI wire conforming to IS: 280 & IS:4826 in 100mm x 100mm mesh Mesh size not more than 150mm (weaved diagonally) including 10 per cent extra for laps and joints laid with stone boulders weighing not less than 40 kg each ( Tensile strength 300-450mpa, size of wire crates 3.0mx1.50mx1.25 m) (Reference to MORT&H's specification 2503). Boulder(NBV) above 225 mm 1.00 Cum & Stone Spalls(63 mm Shingles) (NBV) 0.20 cum/cum

Plain/Reinforced cement concrete in open foundation complete all including vibrating and compacting, finishing, curing, sampling, testing etc. as per drawing and Technical Specifications (Reference to MORT&H's specifications 1500, 1700 & 2200). PCC Grade M15 North bengal bengal variety Materials i. Coarse sand (NBV) - 0.45 cum/Cum ii. Cement - 275.33 Kg/Cum iii. 40 mm Size Aggregate - 0.54 cum/cum iv. 20 mm Size Aggregate - 0.27 Cum/Cum v. 10 mm Size Aggregate - 0.09 cum/cum

By Mix in Place Method Construction of granular sub-base by providing graded materials such as natural sand/crushed gravel/crushed stone/combination depending upon the required grading , spreading in uniform layers with motor grader on prepared surface, mixing by mix in place method with rotavator and compacting with vibratory roller to achieve at least 98% of the maximum dry density for the material determined as per IS:2720 (Part 8), complete as per clause 401 desired density, complete as per clause 401 Grading V (North Bengal Variety Materials) i.53.00 mm Size Stone Materials -0.13 cum/cum ii. 26.50 mm Size Stone Materials - 0.22 cum/cum iii. 10.00 mmSize Stone Materials - 0.29 cum/cum iv. 5.6 mm Size Stone Materials - 0.19 cum/cum v. 2.36 mm Size Stone Materials - 0.26 cum/cum vi. 0.85 cum size Stone Materials - 0.12 cum/cum vii. 0.425 cum Size Stone Materials 0.08 cum/cum

Wet Mix Macadam Providing, laying, spreading and compacting graded stone aggregate conforming to the grading of table 400- 13 revised vide table 2 of IRC : 109 (2015) 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 .The thickness of a single compacted layer shall not be less than 75 mm.(Reference to MoRT&H's specification 406. (North Bengal Variety Materials) i.45.00 mm Size Stone Materials -0.03 cum/cum ii. 22.40 mm Size Stone Materials - 0.36 cum/cum iii. 11.20 mmSize Stone Materials - 0.26 cum/cum iv. 5.6 mm Size Stone Materials - 0.23 cum/cum v. Stone dust - 0.43 cum/cum

Prime Coat Providing and applying primer coat with cationic bitumen emulsion SS1 grade conforming to IS:8887 on prepared porous granular surface including clearing of road surface and spraying primer using mechanical means (Reference to MORT&H's specification clause 502). On WMM/WBM surface @ 0.85 kg /sqm.(SS-01,Packed)

Tack Coat Providing and applying tack coat with Cationic bitumen emulsion (RS1) complying with IS:8887 using emulsion pressure distributor on the prepared uminous/granular /cement concrete pavement surface cleaned with mechanical broom and high pressure air jet (Reference to MORT&H's specification clause 503). On bituminous surface @ 0.25 kg /sqm.(RS-01,Packed)

Repairing Pot-holes with Bituminous Macadam (Grading - II, for compacted thickness of upto 75mm) Filling Pot Holes with Bituminous Macadam using Mobile Hot Mix plant (6-10 TPH) with approved crushed aggregates of specified grading premixed with bituminous binder @3.4% by wt. of the total mix, transported to site and laid in the pot hole prepared before hand by cutting the edges to get a firm vertical face and by removing all the failed and loose materials including dust and applying tack coat evenly on the sides and on the surface as per specification, rolling the filled depression with 8-10 tonne smooth wheeled roller to achieve the desired compaction, including the cost and carriage of stone aggregates and bitumen, hire charges of machinery and equipment, cost of fuel and lubricants and wages of all operational staff, quality control except the cost of tack coat complete as per direction of Engineer-in-charge. North Bengal variety Materials i. 20 mm graded NBV materials - 0.07 cum/cum ii. 13.20 mm graded NBV Materials - 0.33 cum/cum iii. 5.6 mm NBV materials 0.65 cum/cum iv. 2.36 mm NBV materials0.21 cum/cum v. 300 Micron - 0.08 cum/cum vi. 75 Micron - 0.08 cum/cum Bitumen - 75 kg/cum VG-40(P)

Mastic Asphalt Providing and laying 25 mm thick mastic asphalt wearing course with approved grade itumen meeting the requirements given in table 500- 39, prepared by using mastic cooker and laid to required level and slope after cleaning the surface, including providing antiskid surface with bitumen precoated fine-grained hard stone chipping of 13.2 mm nominal size at the rate of 0.005cum per 10 sqm and at an approximate spacing of 10 cm center to center in both directions, pressed into surface when the temperature of surfaces is not less than 100°C, protruding 1 mm to 4 mm over mastic surface, all complete as per clause 516 (Reference to MORT&H's specification clause 516 along with IRC:107). i. Bitumen -VG-40(P) - 5.714 kg/sqm ii. Coarse sand - 0.011 cum/sqm iii.Lime - 10.29 kg/sqm iv.Coarse Aggregate P.V(5.60 mm to 13.20 mm)- 0.0157 cum/sqm v. Precoated Stone Chips 13.200 mm size(PV) - 0.00057 cum/sqm vi. Bitumen for pre coated Chips - VG-30(P) - 0.014 kg/sqm

Retro-Reflectorised Traffic Signs: Providing and fixing of retroreflectorised cautionary, mandatory and informatory sign as per IRC :67 made of high intensity grade sheeting vide clause 801.3, fixed over aluminium sheeting, 1.5 mm thick,when signs with maximum side dimensions do not exceed 600mm, or with aluminium sheeting 2.0mm thick when signs with maximum side dimensions exceeds 600mm, upported on a mild steel angle iron post 75 mm x 75 mm x 6 mm firmly fixed to the ground by means of properly designed foundation with M15 grade cement concrete 45 cm x 45 cm x 60 cm, 60 cm below ground level as per approved drawing (Reference to MORT&H's specification 801). 80 cm x 60 cm rectangular

Road Delineators :- Supplying and installation of delineators (road way indicators, hazard markers, object markers), 80- 100 cm high above ground level, painted black and white in 15 cm wide strips, fitted with 80 x 100 mm rectangular or 75 mm dia circular reflectorised panels at the top, buried or pressed into the ground and conforming to IRC-79 and the drawings (Reference to MORT&H's specification 806).