Name of Work: REPAIRS AND RESURFACING OF CERTAIN ROADS AT TECHNICAL AREA AT AF STN NALIYA.
Sl. No.
Item Description
1
M & L for premix bituminous, macadam laid/rolled with 9 to 12 tonne power roller of paving bitumen of any penetration and compacted to required gradient and camber (consolidated thickness 75mm or less) using binder content minimum 4% (bitumen grade VG-30) by weight of total mix complete all as specified and directed by Engr-In-Charge. Note:- No price adjustment shall be applicable if excess quantity of binder content (paving bitumen VG-30) is used/approved in the execution of work under this item.
2
M & L for premix bituminous, macadam laid/rolled with 9 to 12 tonne power roller of paving bitumen of any penetration and compacted to required gradient and camber (consolidated thickness more than 75mm) using binder content minimum 4% (bitumen grade VG-30) by weight of total mix complete all as specified and directed by Engr-In-Charge. Note:- No price adjustment shall be applicable if excess quantity of binder content (paving bitumen VG-30) is used/approved in the execution of work under this item.
3
M & L for preparing of black top surface by brushing with wire brushes for removing caked mud, etc. sweeping with brooms & finally fanning the cleaned surface with gunny bags to remove all loose dirt etc and applying evenly a prime coat of Cationic Bitumen Emulsion (RS1) confirming to IS : 8887 at a rate of application of 0.2 - 0.3 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.
4
M & L for Premix Bituminous concrete 30mm consolidated thickness with 5.5% binder (paving bitumen of grade VG-30) content by weight of total mix and crushed aggregates of grading 2 with mixing of aggregates and VG-30 bitumen by using electronic operated 100-120 TPH batch type hot mix plant, transporting the hot mix from Hot mix plant to work site by tippers and laying with Mannual mechanical paver finisher and as per approved mix and rolled & compacted to required camber and gradient with 8 to 12 tonne smooth wheeled, vibratory and tandem roller, complete all as per Clause 507 MoRTH (5th Rev) specification and as specified and directed. Notes:- (i) The contractor shall quote the rate against item considering minimum 5.5% VG-30 bitumen content. Job Mix Formula as per Clause No. 505.3.3 of MoRTH (5th Rev) for BC shall be worked out from Govt approved lab / Govt Engineering Collage / CTL for obtaining Optimum Binder Content (OBC) by the Contractor without any financial effect to the Dept and same be submitted to the accepting officer for approval. Any variation in binder content on minus side shall be adjusted @ Rs 50/- per kg of binder and no adjustment shall be made on plus side. (ii) Cost of filler i.e. cement/Stone dust is deemed to be included in quoted unit rate. (iii) After spreading of mix as per clause 507.4.7 entire surface during the operation shall be rolled with road roller 8-10 tonne (smooth wheeled) followed by tandem road roller of 8-10 tonne static weight, followed by finished rolling with 6 to 8 tonne smooth wheel tandem roller as per Clause Nos. 507.4.8 and cost of the same is deemed to be included in quoted unit rate. (iv) Contractor shall intimate the planned date of incorporation of mix in advance to GE. Premix will be approved in writing by Rep of Accepting Officer at plant site before incorporation of the same in the work.
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