87616E8 REPAIRS TO INTERNAL ROADS IN RESIDENTIAL AREA UNDER OD GE AVADI.

Amount

BOQ UPLOADED ON 09 SEP 2020.

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 premixed bituminous macadam, well rammed and sealed with binder of paving bitumen of Grade VG-30, 9.8 kg per 10 sq m, 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), depth of potholes exceeding 30mm complete all as specified and as directed.

Scarifying or picking gravelled, macadam or bituminous macadam surfaces in area exceeding 400 sqm and exceeding 50mm and not exceeding 100mm deep complete all as specified and as directed.

Water bound macadam (WBM) 150 mm thick (compacted thickness) in two layers of 75 mm thick each, with coarse granite aggregates of grading 2 (63 to 40 mm size) each layer spread separately, rolled and consolidated to required gradient and camber etc., using power roller exceeding 8 tonne and not exceeding 12 tonne capacity complete all as specified and as directed.

Preparing unsurfaced water bound macadam 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 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 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% 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 sensor 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.

Vijay Builders

D Subramani and Sons

B.S.CONSTRUCTIONS

k sundarrajan

jayashree construction