87659E8 REPAIRS TO APPROACH ROAD AND PATHWAY IN ED AREA UNDER GE AVADI CHENNAI.

Amount

BOQ UPLOADED ON 22 JAN 2022

SCHEDULE "A" PART-I (REPAIRS ROADS)

Repairs to potholes any depth not exceeding 1 sqm each including sweeping free from dust and mud, or water, scoring sunken surfaces in roads, paths etc., cutting around edges to atleast 25mm in depth, making good by applying tack coat of paving bitumen of Grade VG-30 at 5 kg per 10 sq m, putting in premix as specified for SDAC well rammed (including supply of SDAC) depth of potholes not exceeding 30mm complete all as specified and as directed.

Preparing existing 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., complete all as specified and as directed.

Applying evenly using pressure sprayer a priming / tack coat with bituminous primer of paving bitumen of Grade VG-30 at 5 kg / 10 Sqm over bituminous surfaces complete all as specified and as directed.

Bituminous premix semi-dense asphaltic concrete (SDAC), 40mm consolidated thickness with 5.5% binder content by weight of total mix, (paving bitumen VG-30) and filler of 2 % cement, rolled and compacted to required camber and gradient complete using mechanical paver and rolled to a uniform, smooth surface using Tandem vibratory roller complete all as specified and as directed.

(a) Contractor shall quote his rate by considering 5.5% bitumen content. If it is less than 5.5% by weight of total mix, the amount shall be recovered for the less weight of binder only at the rate of Rs 42/- per Kg if technically acceptable. No other claim whatsoever on account of this will be allowed.

(b) No price adjustment shall be applicable if excess quantity of binder content is used / approved in the execution of work under this item.

(c) Cement shall be used as filler at a minimum of 2% by weight of total mix. In the event of variation in the mix design in the percentage of filler content on plus side, nothing extra shall be paid.

(d) The coarse aggregate for SDAC shall be granite stone.

Removing old CAT eyes and taking on credit and provision of new Duo directional CAT eyes (Road studs) of size 100mmx110mmx20mm made up of weather resistant high impact polymer conforming to ASTM D4280 and having electronically welded micro prismatic lens with abrasion resistant coating and fixed with 2 Nos of polymer shanks and epoxy adhesive conforming to IS as per manufacturer’s instructions complete all as specified and directed.

Make shall of Cat No. DA-52 of Dark Eye or equivalent of makes as listed here-in-after as approved by GE.

Preparing road surface including cleaning the road surface of all dirt, seals, oil, grease and foreign material etc and applying 2.5mm thick road marking strips (Retro reflective) of specified shade/colour using hot thermoplastic material conforming to IS-164(1981) by fully automatic thermoplastic paint applicator machine fitted with profile shoe, glass beads dispenser including glass beads, propane tank heater and profile shoe heater, driven by experienced operator in accordance with manufacturer’s instructions all as per BS EN 1871, BS EN 1423 and BS EN 1424 complete as specified and directed.

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