SPECIAL REPAIRS TO CERTAIN ROADS IN AND AROUND OTA COMPLEX UNDER GE STM CHENNAI

Amount

BOQ UPLOADED ON 13 Feb 2023

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 filling in screened and graded road metal (including provision of road metal), watering and well ramming complete all as specified and as directed.

Preparing WBM surfaces of repaired pothole 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 using pressure sprayer a tack coat with bituminous primer of paving bitumen of Grade VG-30 at 10 kg / 10 Sqm complete all as specified and as directed.

Preparing black top surfaces by brushing with wire brushes for removing caked mud 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.

Moorum/red bajri filling (consolidated thickness) as in berms, laid in layers not exceeding 15cm thick, spread, levelled and rammed including watering 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 with Tandem vibratory road roller complete all as specified and as directed.

(a) Contractor shall quote his rate by considering 5.5% bitumen content. If binder content found less than 5.5% by weight of total mix at site, the necessary price adjutment shall be made 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 taken on credit and provision of 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. Note - Make shall of Cat No Dhruv DA-110 of Dark Eye or equivalent of makes as listed here-in-after as approved by GE.

Preparing black top road surface including cleaning the road surface of all dirt, seals, oil, grease and foreign material etc and marking 2.5mm thick center line, stop lines,dashes,arrows ets the like (Retro reflective) of specified shade/colour on road using hot thermoplastic material conforming to IS-164 (1981) by fully automatic thermoplastic road marking 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.

k.sundarrajan and sons