Asansol Durgapur Development Authority Tender

Tack Coat :Providing and applying tack coat with Cationic Bitumen Emulsion of approved grade conforming to IS : 8887 -1978 on the prepared surface cleaned with hydrolic broom, moistening the surface including cost and carriage of emulsion, hire chareges of machinery & labour, cost of fuel and lubricants all complete as per Clause 503 of Specification for Road & Bridge Works of MoRT&H (5th Revision).

On Bituminous Surface : using Bituminous emulsion at the rate of 0.2 to 0.3 kg /sqm.

Open graded Premix surfacing using Bituminous (viscosity grade Paving bitumen / Modified bitumen ) binder & Mobile hot mix plant (Light duty) : Poviding , Laying and rolling of Open graded Premixed Surfacing of 20 mm thickness composed of 13.2 mm ( @ 0.018 cum per sqm ) 11.2 mm (@ 0.009 cum per sqm) size stone aggregates including throughly cleaning of the surface, screening cleaning and preheating stone chips and fully pre-coating the same either using viscosity grade paving bitumen or cut back or emulsion carrying the mixture by any suitable arrangement , laying the mixture uniformly over the surface, including line , grade and level to serve as wearing course on a previously preapered base , including mixing in Mobile Hot Mix plant (Light duty ) throughly rolling with a smooth wheeled roller 8 -10 Tonne capacity , finished to required level 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 machineries , pay of oparatrors and cost of fuel and lubricants etc. complete to be followed by seal coat of either type A or Type B as per technical Specifications Clause 508 for Rural roads for MORD..

Providing and laying Premixed Seal coat (Type – B) with approved quality sand / grit @ 0.6 cum per 100 sqm and bitumen binder on throughly 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 µ sieve ) uniformly with bitumen binder ,laying and spreading the mix at an uniform rate using suitable means, brushing the surface, if necessary, to ensure uniformaty, 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 incidential 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)

ByManual means with hot Bitumen binders (@ 6.8 kg/ 10 sqm) with Pakur variety.

Supplying and Laying in the specified pattern of Interlocking Concrete Block Pavement (ICBP) with concrete blocks (with concrete grade as speified as per Table 1 of IS 15658: 2006 manufactured in steel mould clamped to a vibrating table by hydraulic pressure (as per cl. no. 6.30 of IRC : SP :63(2018) , from BIS Licence manufacturer, with spacer nib (Small protruding profiles on the vertical face of a paver block used as a device for keeping minimum joints gap in between the paving blocks , as per Cl No 3.26 of IS : 15658 ) and of specified size and shape with aspect ratio (the ratio of the length to thickness of a paver block, as per Cl No. 3.3 of IS : 15658 ) as per Table 2 of IS : 15658 with flexural strength /. breaking load as per Annexture G of IS : 15658 on the prepared base course of specified CBR as per Table 1 of IRC : SP 63 (2018)or else as mentioned in design and drawing with a cushion of compacted bedding sand of 25 m to 35 mm thick ( grading of the bedding sand as per clause 6.5.1of IRC SP 63 ) and filling up the gap in between the paver blocks with joint filling sand ( the grading of the joint filling sand will be as per clause 6.5.2 of IRC SP 63 ) and completing the edges with cut blocks of as per Cl No 8.7 of IRC SP : 63 (2018) with proper confinement of bedding & joint filling sand, compaction , levelling & filling earth of the edge Gap .100 mm thick / Grey

Repairing pot-holes and making up small depressions with ramming or power rolling including screening, cleaning chips or metals and washing, drying as necessary and heating the chips or metal where necessary, cutting pot holes to regular shapes with vertical edges, cleaning the disintegrated materials, heating matrix and applying tack coat (including sides), finishing the top of repaired surface levelled with adjoining area, including cost and carriage of stone aggregates and matrix, excluding cost of applying tack coat. [Tack coat is to be considered separately] [Payment to the Contractor is to be made on the basis of loose net volume of coarse aggregate only excluding key aggregates] i) With premixed Chips or Bajrees with 54 kg of bitumen per m3 of loose net volume of stone chips using concrete mixer machine. (The payment is to be made on the basis of loose net volume of stone materials consumed in the work)

Using Mobile HMP (Light duty)

Sub Total

GST 18%

CESS 1%