Emergent Repairing Potholes With Precoating Bituminous Materials And Surface Area Of Different Street Of Block-A Of Aa-I Under Nkda., kolkata-West Bengal

Emergent repairing potholes with precoating bituminous materials and surface area of different street of Block-A of AA-I under NKDA. , Labour For Picking Up Existing Metalled Road Surface To A Specified Average Depth, Including Screening And Stacking The Pavement Materials. Depth Above 75 Mm But Not Exceeding 150 Mm By Manual Means: (Ii)Brick / Jhama Metal Surface , Pre-Coating Stone Aggregates With Hot Matrix @ 56 Kg/M3 Of Net Volume Of Stone Aggregate 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 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 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. , Providing, Laying, Spreading And Compacting Stone Aggregates Of Specific Sizes To Water Bound Macadam Specification Including Spreading In Uniform Thickness, Hand Packing, Rolling With Vibratory Roller 8-10 Tonnes In Stages To Proper Grade And Camber, Applying And Brooming Requisite Type Of Screening / Binding Materials To Fill Up The Interstices Of Coarse Aggregate, Watering Includingb Lighting, Guarding, Barricading And Making Necessary Earthen Bundh Of One Metre Width On Each Side And Preparing The Bed By Necessary Cutting Or Filling, Including Cost Of All Materials And Hire And Labour Charges Of All Men And Machinery And Compacting To The Required Density, As Per Clause 404 Of Specifications For Road & Bridge Works Of Mort&H (5Th Revision). (Iii) Grading-Ii Aggregate (53 Mm To 22.4 Mm) Using Stone Screening Type B (11.2 Mm) , Providing And Applying Primer Coat With Cationic Bitumen Emulsion Of Approved Grade Conforming To Is: 8887-1978 And Requisite Quantity On Prepared Surface Of Granular Base Including Cleaning Of Road Surface And Spraying Primer Using Mechanical Means Including Cost And Carriage Of Bitumen Emulsion And All Other Incidental Costs Of Work Complete As Per Clause 502 Of Specifications For Road & Bridge Works Of Mort&H (5Th Revision). , Providing And Applying Tack Coat With Cationic Bitumen Emulsion Of Approved Grade Conforming To Is: 8887-1978 On The Prepared Surface Cleaned With Hydraulic Broom, Moistening The Surface Including Cost And Carriage Of Emulsion, Hire Charges Of Machinery And Labour, Cost Of Fuel And Lubricants All Complete As Per Clause 503 Of Specifications For Road & Bridge Works Of Mort&H (5Th Revision). , Open-Graded Premix Surfacing Using Bituminous (Viscosity Grade Paving Bitumen / Modifiedbitumen) Binder And Mobile Hot Mix Plant (Light Duty) : Providing, Laying And Rolling Of Open - Graded Premix Surfacing Of 20 Mm Thickness Composed Of 13.2 Mm (@0.018 M³ Per M²) And 11.2 Mm (@ 0.009 M³ Per M²) Size Stone Aggregates, Including Thoroughly Cleaning Of The Surface, Screening, Cleaning And Pre-Heatingstone Chips And Fully Pre-Coating The Same Either Using Viscosity Grade Paving Bitumen Or Cut-Back Or Emulsion, Carrying The Mixture By Any Suitable Arrangements, Laying The Mixture Uniformly Over The Surface, Including Line, Grade And Level To Serve As Wearingcourse On A Previously Prepared Base, Including Mixing In Mobile Hot Mix Plant (Light Duty) And Thoroughly Rolling With A Smooth Wheeled Roller 8-10 Tonne Capacity, Finished To Required Level And Grades Including The Cost And Carriage Of Stone Chips And Matrix, Heating The Matrix, Preheating The Aggregates To Required Temperature And Including The Hire Charges Of Mobile Hot Mix Plant (Light Duty) And Other Machinery, Pay Of Operators, Cost Of Fuel And Lubricants Etc. Complete To Be Followed By Seal Coat Of Either Type A Ortype B As Per Technical Specification Clause 508 For Rural Roads Of Mord. , Providing And Laying Premixed Seal Coat (Type B) With Approved Quality Sand/Grit @ 0.6 M3/ 100 M2 And Bitumen Binder On Thoroughly Cleaned Black Top Surface Coated With Tack Coat, Including Heating And Mixing Cleaned Sand/Grit (100 % Passing Through 2.36 Mm Sieve And Retained On 180 Micron Sieve) Uniformly With Bitumen Binder, Laying And Spreading The Mix At An Uniform Rate Using Suitable Means, Brushing The Surface, If Necessary, To Ensure Uniformity, Followed By Rolling With Power Roller Including The Cost And Carriage Of Binder And Aggregates, Cost Of Heating The Binder And Aggregates And All Other Incidental Charges, Cost Of Fuel And Lubricants, Including Hire Charges Of Machineries, Tools & Plants Required For Construction And Quality Control Complete As Per Clause 511 Of Specifications For Road & Bridge Works Of Mort&H (5Th Revision). I By Mechanical Means (I) With Hot Bitumen Binder (@ 6.80 Kg / 10 Sqm.) , Removal Of Rubbish,Earth Etc. From The Working Site And Disposal Of The Same Beyond The Compound, In Conformity With The Municipal / Corporation Rules For Such Disposal, Loading Into Truck And Cleaning The Site In All Respect As Per Direction Of Engineer In Charge.

Refer document

INR 50762.0 /-

INR 25.38 Lakhs /-

Name of Work:Emergent repairing potholes with precoating bituminous materials and surface area of different street of Block-A of AA-I under NKDA.

Sl. No.	Item Description
1	Labour for picking up existing metalled road surface to a specified average depth, including screening and stacking the pavement materials. Depth above 75 mm but not exceeding 150 mm by manual means: (ii)Brick / Jhama metal surface
2	Pre-coating stone aggregates with hot matrix @ 56 kg/m3 of net volume of stone aggregate 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 direction of Engineer-in-charge.
3	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.
4	Providing, laying, spreading and compacting stone aggregates of specific sizes to water bound macadam specification including spreading in uniform thickness, hand packing, rolling with vibratory roller 8-10 tonnes in stages to proper grade and camber, applying and brooming requisite type of screening / binding materials to fill up the interstices of coarse aggregate, watering includingb lighting, guarding, barricading and making necessary earthen bundh of one metre width on each side and preparing the bed by necessary cutting or filling, including cost of all materials and hire and labour charges of all men and machinery and compacting to the required density, as per Clause 404 of Specifications for Road & Bridge Works of MoRT&H (5th Revision). (iii) Grading-II Aggregate (53 mm to 22.4 mm) Using Stone Screening Type B (11.2 mm)
5	Providing and applying primer coat with Cationic Bitumen Emulsion of approved grade conforming to IS: 8887-1978 and requisite quantity on prepared surface of granular base including cleaning of road surface and spraying primer using Mechanical means including cost and carriage of bitumen emulsion and all other incidental costs of work complete as per Clause 502 of Specifications for Road & Bridge Works of MoRT&H (5th Revision).
6	Providing and applying tack coat with Cationic Bitumen Emulsion of approved grade conforming to IS: 8887-1978 on the prepared surface cleaned with Hydraulic broom, moistening the surface including cost and carriage of emulsion, hire charges of machinery and labour, cost of fuel and lubricants all complete as per Clause 503 of Specifications for Road & Bridge Works of MoRT&H (5th Revision).
7	Open-Graded Premix Surfacing using Bituminous (Viscosity grade Paving Bitumen / Modifiedbitumen) Binder and Mobile Hot Mix Plant (Light Duty) : Providing, laying and rolling of Open - graded premix surfacing of 20 mm thickness composed of 13.2 mm (@0.018 m³ per m²) and 11.2 mm (@ 0.009 m³ per m²) size stone aggregates, including thoroughly cleaning of the surface, screening, cleaning and pre-heatingstone chips and fully pre-coating the same either using viscosity grade paving bitumen or cut-back or emulsion, carrying the mixture by any suitable arrangements, laying the mixture uniformly over the surface, including line, grade and level to serve as wearingcourse on a previously prepared base, including mixing in Mobile Hot Mix Plant (Light Duty) and thoroughly rolling with a smooth wheeled roller 8-10 tonne capacity, finished to required level and grades including the cost and carriage of stone chips and matrix, heating the matrix, preheating the aggregates to required temperature and including the hire charges of Mobile Hot Mix Plant (Light Duty) and other machinery, pay of operators, cost of fuel and lubricants etc. complete to be followed by seal coat of either Type A orType B as per Technical Specification Clause 508 for Rural Roads of MORD.
8	Providing and laying Premixed Seal Coat (Type B) with approved quality sand/grit @ 0.6 m3/ 100 m2 and bitumen binder on thoroughly cleaned black top surface coated with tack coat, including heating and mixing cleaned sand/grit (100 % passing through 2.36 mm sieve and retained on 180 micron sieve) uniformly with bitumen binder, laying and spreading the mix at an uniform rate using suitable means, brushing the surface, if necessary, to ensure uniformity, followed by rolling with power roller including the cost and carriage of binder and aggregates, cost of heating the binder and aggregates and all other incidental charges, cost of fuel and lubricants, including hire charges of machineries, tools & plants required for construction and quality control complete as per Clause 511 of Specifications for Road & Bridge Works of MoRT&H (5th Revision). I By Mechanical Means (i) With Hot Bitumen Binder (@ 6.80 kg / 10 sqm.)
9	Removal of rubbish,earth etc. from the working site and disposal of the same beyond the compound, in conformity with the Municipal / Corporation Rules for such disposal, loading into truck and cleaning the site in all respect as per direction of Engineer in charge.