Short term maintenance contract work from Km 25.700 to Km 31.000 on NH 12 under NH Division No V in the District of North 24 Parganas West Bengal during the year 2025 2026.

BILL NO. 1 : ROAD MAINTENANCE

Dismantling of flexible pavements and disposal of dismantled materials up to a lead of 1000 metres, stacking serviceable and unserviceable materials separately (Reference to MoRT&H's specification clause 202). By Mechanical Means.

Bituminous Course. By Mechanical Means.

Wet Mix Macadm Providing, laying, spreading and compacting graded stone aggregate conforming to the grading of table 40013 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.

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).

Tack Coat Providing and applying tack coat with Cationic bitumen emulsion (RS1) complying with IS:8887 using emulsion pressure distributor on the prepared bituminous/granular /cement concrete pavement surface cleaned with mechanical broom and high pressure air jet (Reference to MORT&H's specification clause 503).On Granular surface treated with primer @ 0.25kg-0.30 /sqm.

Tack Coat Providing and applying tack coat with Cationic bitumen emulsion (MS) complying with IS:8887 using emulsion pressure distribution the prepared bituminous/granular/cement concrete pavement surface cleaned with mechanical broom and high pressure air jet (Reference to MORT&H's specification clause 503).( For Bituminous surface )

Dense Graded Bituminous Macadam For Grading-2 Providing and laying dense graded bituminous macadam with 100-120 TPH batch type HMP using crushed aggregates of specified grading, premixed with bituminous binder of approved grade @4.0% (min) forGrading-1 and 4.5% (min) for Grading-2 by weight of total mix and filler(Cement/hydrated lime/Rockdust) as per table 500-10 and mix design done as pertable 500-11 and job mix formula as per clause 505.3.3 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 tandem roller and with pneumatic tyre roller of 12 to15 tonne weight with a pressure atl east 0.56MP a as directed by E-I-C, and to achieve the desired compaction as per MORT&H specification clause No.505.3.5 complete in all respects (Reference to MORT&H's specification clause 505).

30mm thick Bituminous Concrete Providing and laying bituminous concrete with 100-120 TPH batch type hot mix plant using crushed aggregates of specified grading, premixed with bituminous binder of approved grade @5.4% (min) forGr.-2 ,as pertable 500-17, and mix designd one as per table 500-10 and job mix formula as per cl.505.3.3 and filler(Cement/hydratedlime/Rockdust), transporting the hot mix to worksite, laying with a hydrostatic paverfinis her with sensor control to the required grade,level and alignment,rolling with smooth wheeled,vibratory tandem roller and with pneumatic tyre roller of 12 to15 tonne weigh twitha pressure at least 0.56MP a as directed by E-I-C to a chieve the desired compaction as per clause no507.3.5 complete in all respects ref.toMORTH specification clauseNo.507. for Grading-2 ( 13.2 mm nominal maximum aggregate size), Layer thickness:30-40mm

Seal Coat Type B Providing and laying seal coat sealing the voids in a bituminous surface laid to the specified levels, grade and cross fall using. Type B seal coats (Reference to MORT&H's specification clause 511).

Cleaning rubbish , sludge, weeds scum, liquid earth , mud etc etc from road side masonary drain / hume pipe drain / invert , by mathor labour after removing concrete slab / manhole cover etc without damaging the same and fixing the same proeprly after cleaning as neccesary and removing the sludge etc etc by usung iron pans , buckets including all labour , olslants including removing the spoils in dry condition and disposing the same by truck beyond the road side in onformity with municipality / corporation rules for such disposal including loading into truck and cleaning the road side in all respect as per direction of the Engineer in Charge.

BILL NO. 2 : ROAD PROPERTY MAINTENANCE

Dismantling of Structures Dismantling of existing structures like culverts, bridges, retaining walls and other structurecomprisingofmasonry, cement concrete, wood work, steel work, including T&P and scaffolding wherever necessary, sorting the dismantled material, disposal of unserviceablematerialandstackingthe serviceablematerial with all lifts and lead of 1000 metres (Reference to MORT&H's specification clause 202)

RCC Grade M25 using concrete mixer 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).

HYSD reinforcement Supplying, binding, fixing etc. including initial straightening, cutting to requisite length, hooking and bending to correct shape, placing in proper postion of uncoated HYSD reinforcement barin super-structure complete as per drawing and technical specifications (Reference to MORT&H's specification 1600).

BILL NO. 3 : PERFORMANCE BASED INCIDENT MANAGEMENT & PAVEMENT REPAIR

Repairing Pot-holes with Bituminous Macadam (Grading - II, for compacted thickness of upto 75 mm) 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. Payment to be made on the basis of the loose net volume of the stone aggregates used in the work.

Anti-stripping agent Labour for mixing stable anti-stripping agent of approved quality conforming to Table - A4-1 of Appendix–4 of Specification for Road & Bridge Works of MoRT&H (5th Revision) to the binder @ 0.5% to 1% by weight of binder (depending up on size & stripping value of the aggregates) and allowing 15 to 30 minutes of circulation or stirring in the hot bitumen tank to ensure a homogeneous mix of binder and anti-stripping agent for different bituminous works as per Technical Specifications given in Appendix – 4 of Specification for Road & Bridge Works of MoRT&H (5th Revision) and direction of Engineer-in-Charge complete including cost and carriage of all materials, labours, hire charges of T&P but excluding the cost but including carriage of anti-stripping agent to site of works.

Preparation and storage of Pre-coating Chips and Repairing pot holes by pre-coated Chips Pre-coating stone aggregates with cutback bitumen MC-800 and anti-stripping agent in concrete mixer including preheating the stone aggregate at a suitable temperature including the cost of carriage of the stone aggregate at the mixing yard and carriage of the pre-coated materials for dumping at a suitable place as directed including cost and carriage of bitumen and hire charges of machineries and all incidental charges complete as per IRC: 116-2014 and as per direction of Engineer-in-charge. Repairing pot holes with pre-coated stone materials including cutting, loading pre-coated stone materials at departmental stack-yard or any other approved pre-defined location, including carriage of pre-coated stone materials from source to different kilometers of road by truck and laying directly from truck and compacting with plate compactor / power roller including cutting the pot hole to regular shape clearing the potholes of loose materials, drying the bed of potholes, where necessary, by soaking with gunny bags and using lime, where necessary, before laying of pre-coated materials etc. complete as per direction of Engineer-in-charge. (i) Within a distance up to 10 kms

Repairing pot holes by pre-coated Chips Repairing pot holes with pre-coated stone materials including cutting, loading pre-coated stone materials at departmental stack-yard or any other approved pre-defined location, including carriage of pre-coated stone materials from source to different kilometers of road by truck and laying directly from truck and compacting with plate compactor / power roller including cutting the pot hole to regular shape clearing the pot holes of loose materials, drying the bed of pot holes, where necessary, by soaking with gunny bags and using lime, where necessary, before laying of pre-coated materials etc. complete as per direction of Engineer-in-charge(i) Within a distance up to 10 kms.

FillingPot-holes and Patch Repairs with Bituminous concrete, 40mm. Providing and laying bituminous concrete with 100-120 TPH batch type hot mix plant using crushed aggregates of specified grading, premixed with bituminous binder of approved grade @5.4% (min) forGr.-2 ,as pertable 500-17, and mix designd one as per table 500-10 and job mix formula as per cl.505.3.3 and filler(Cement/hydratedlime/Rockdust), transporting the hot mix to worksite, laying with a hydrostatic paverfinis her with sensor control to the required grade,level and alignment,rolling with smooth wheeled,vibratory tandem roller and with pneumatic tyre roller of 12 to15 tonne weigh twitha pressure at least 0.56MP a as directed by E-I-C to a chieve the desired compaction as per clause no507.3.5 complete in all respects ref.toMORTH specification clauseNo.507. for grading II Material

Tack Coat Providing and applying tack coat with Cationic bitumen emulsion (MS) complying with IS:8887 using emulsion pressure distribution the prepared bituminous/granular/cement concrete pavement surface cleaned with mechanical broom and high pressure air jet (Reference to MORT&H's specification clause 503).( For Bituminous surface )

GST @ 18% of Total Amount Arom Item No. 1 to 18