REPAIR TO ROADS AND CONNECTED WORKS IN ZONE A,B,C,D AND E UNDER GE CHENNAI

Amount

BOQ UPLOADED ON 03 MAY 2024

SCHEDULE "A" PART-I (REPAIRS TO 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 Unsurfaced WBM surfaces by brushing with wire brushes for removing caked mud, loose materials etc., sweeping with mechanical blower or brooms to remove all loose dirt, materials etc. and applying evenly using pressure sprayer for priming / tack coat with bituminous primer of paving bitumen of Grade VG-30 at 10 kg / 10 Sqm over WBM surfaces complete all as specified and as directed.

Preparing black top surfaces by brushing with wire brushes for removing caked mud, loose materials etc., sweeping with mechanical blower or brooms to remove all loose dirt, materials 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% minimum 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 50/- 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.

Premix Dense Bituminous Macadam (DBM), as in profile layer, with grading 2 of IRC laid in layers of 75mm or less (consolidated) thickness using 4.0% binder content by weight of total mix, with paving bitumen of grade VG-30 using hot mix plant spread, rolled and compacted to required camber and gradient complete using mechanical sensor paver and rolled to a uniform, smooth surface using Tandem vibratory roller complete all as specified and as directed.

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.

Removing old solar studs and taking on credit and provision of new Solar studs made out of aluminium composite body (of load capacity 20 Tonne) fixed with bright LEDs 3 Nos (RED) on each side, size 125mmx125mmx25mm and shank 65mm, with battery of Li / Cd and to be fixed using adhesive as per manufacturer’s instructions complete all as specified and directed.

Make shall of Cat No. Dhruv DA-110 of Dark Eye or Cat No GPL-03-01 SRS BN Make: GREENS/ GREENLITE or equivalent of makes as listed here-in-after as approved by Accepting Officer.

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 Cat Pt No GPL-01-04 Make: GREENS/ GREENLITE or equivalent of makes as listed here-in-after as approved by Accepting Officer.

Removing old speed bump and taking on credit and provision of new Yellow and black plastic speed bump made of PE material, highly reflective reflector mould in PMMA, material welded with plate through ultrasonic welding process etc, size of sub unit of the speed bump 500mmx365mmx50mm, dovetail interlocked to bind perfectly into one firm bump of 40 ton load capacity with end cap on road including epoxy for fixing speed bumps with necessary bolts/nuts etc., as per manufacturer’s instructions as in repairs complete all as specified and directed.

Make shall of Cat No.DA-1008 of Dark Eye or equivalent of makes as listed here-in-after.

Removing old traffic Mirror and taking on credit with provision of new Convex Traffic Mirror 800mm size fixed on MS Pipe with 100mm dia base plate and height 1000mm fixed on pedestal of size (300 x 300 x 600) mm, of PCC 1:2:4, type B1 (using 20mm graded stone aggregates) duly anchored in ground on various locations and after finishing with plaster 10mm thick in CM 1:6 finished with w/wash three coats including necessary preparation complete as per manufacturer’s instructions and all as specified and directed by the Eng-in Charge.

Make shall of Cat No CM/04(1) of Dark Eye or equivalent of makes as listed here-in-after as approved by the GE

Demolition of PCC of any description and in any position not otherwise specifically provided for

Plain cement concrete 1:4:8, type D2 using 40mm graded stone aggregate 100mm thick as in Sub-base of flooring complete all as specified and as directed.

Machine pressed precast concrete interlocking paver blocks any shape and size mixed with grey cement and no pigment confirming to IS 15658-2006 of 60 mm thickness, M-35 Grade over 25mm thick sand cushioning complete all as specified and as directed.

Precast Cement concrete 1:2:4, type B1 (20 mm graded stone aggregate) set in CM 1:4 as in Kerb stones and similar articles with plain faces including necessary form work complete all as specified and directed by Eng-in-Charge.

Preparing plastered or concrete Surfaces of any description over 10cm width or girth not otherwise described and applying two coats of synthetic enamel paint complete all as specified and directed by Eng-in-Charge.

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B.S.CONSTRUCTIONS