REPAIR TO CERTAIN ROADS AT NMS UNDER AGE (I) NABAGRAM

Amount

Repair to potholes any depth, not exc 1 sqm each including sweeping free from dust and mud, or water, scoring sunken surfaces in roads, paths, etc. cutting around edges to at least 25 mm in depth, making good applying tack coat @ 5 kg per 10 sqm of VG-10 grade of paving bitumen, putting in premixed bituminous macadam, well rammed and sealed with binder 9.8 kg per 10 sqm of VG-30 grade of paving bitumen, blinded with 0.09 cu m of stone chippings, 6.3 mm size and again well rammed (including supply of premixed macadam, binder and chippings), complete all as specified and directed. [Note : Pot holes register to be maintained by Engr-in-Charge and payment shall be made as per Pot holes register.]

Preparing black top surfaces by brushing with wire brushes for removing caked mud etc., sweeping with brooms and finally fanning the cleaned surface with gunny bags to remove all loose dirt etc. and applying evenly a tack coat of Bitumen VG-10 grade conforming to IS : 73-2006 at a rate of application of 0.3-0.4 kg/sqm on bituminous surface as specified in Table 500-5 of MoRTH Specification for Road and Bridge Works 2013, using mechanical sprayer, complete all as specified and directed.

Scarifying or picking gravelled, macadam or bituminous macadam surfaces in area not exc 400 sqm, exc 50mm and not exc 100mm deep (Scarifying include racking over and grading the broken up surface to the proper camber etc. as required) and rolling and consolidating formation surfaces in filling by power roller exc 8 tonne & n exc 10 tonne capacity to required gradient and camber, complete all as specified and directed.

M&L Bituminous premix semi dense asphaltic concrete 30mm consolidated thickness with 5.5% binder with paving bitumen (VG-30) (Mix Design criteria as per SSR Part-I Clause 20.B.2.11), coarse aggregate, fine aggregate, filler cement (OPC - 43 Gde) as per recommendation of design by weight of total mix from hot mix plant, rolled by with 8 to 12 tonne vibrating (tandom) road roller to confirm uniform surface and compacted to required camber and gradient complete with mechanical paver, complete all as specified and directed. [Note : (i) Work shall be executed after approval of design mix of semi dense asphaltic concrete by GE. (ii) Calibration of Hot Mix Plant shall be submitted to Engr-in-Charge for approval. (iii) Payment shall be made to Contractor after submission of approved design mix, Bitumen Extraction Report, Road Roller Register & Calibration Report. (iv) Exact qty of binder to be used shall be ascertained by Design Mix. (v) Minimum 5.5% binder shall be used. However, in case more than 5.5% of binder content is required as per design mix, the same shall be provided by the contractor at no extra cost to dept.]

M&L premixed bituminous macadam over primed surface of road using paving bitumen VG-30, laid/rolled by 8 to 12 tonne capacity roller and compacted to required gradient and camber (consolidated thickness 50 mm or less including preparation of area before laying of Macadam with mechanical paver), binder contents of premixed macadam shall be 4% by weight of total mix (Design Mix), complete all as specified and directed. [Note : (i) Work shall be executed after approval of design mix of bituminous macadam by AGE (I). (ii) Calibration of Hot Mix Plant shall be submitted to Engr-in-Charge for approval. (iii) Payment shall be made to Contractor after submission of approved design mix, Bitumen Extraction Report, Road Roller Register & Calibration Report. (iv) Exact qty of binder to be used shall be ascertain by design mix. (v) Minimum 4% of binder shall be used. However, in case more than 4% of binder content is required as per design mix, the same shall be provided by the contractor at no extra cost to the dept.]

M&L preparing bituminous surfaces of road by cleaning and preparing the road surface and making good the road marking location and marking / applying 2.5mm thick white or golden yellow reflective hot thermoplastic road marking paint (Hot application) for centre lines, stop lines, dashes, arrows etc. and the like n. exc 10cm wide on roads pavements confirming to BS 3262-1989 with special applicator machine through modern propelled road marking machine in a layer all as per manufacturers instruction and use of all ingredients such as binder, glass beads, titanium dioxide, calcium carbonate, interfiller thermoplastic required for glass beads per sqm by incorporating the white/ yellow beads for reflectivity in 100 mm width, complete all as specified and directed.

Note for Item No. 1.01 to 1.06 : The repair of road work will be carried out in patches as per site requirement i.e. bell mouths, curves, widening of roads and road cutting for laying of cables/ pipes etc. under entire domestic/ tech area where patch work is required.

ANSH CONSTRUCTION (BID ID -3257488)