SPECIAL REPAIR OF ROAD AT AF STN WADSAR UNDER GE (AF) CHILODA

Scarifying or picking exc 50 mm and n exc 100 mm deep gravelled, macadam or bituminous macadam surfaces in area exc 400 sqm and removing n exc 50 metres and stacking or complete all as specified and directed.

M & L for preparing existing black top surfaces by brushing with wire brushes for removing caked mud etc, sweeping with brooms and finally fanning the cleaned surfaces with gunny bags to remove all loose dirt etc complete all as specified and directed.

Applying evenly a tack coat of Cationic Bitumen Emulsion (RS-1) conforming 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 MaRTH specification for road and bridge works 2013, using mechanical sprayer after cleaning of existing surface complete all as specified and directed.

M&L for laying, spreading 30mm thick (cosolidated thickness) of Premix Bituminous semi dense asphaltic concrete (SDAC) as per design based on Job mix formula with 5.5% bitumen binder content (bitumenof grade, VG-30) by weight of total mix including heating bitumen to the required temperature, mixing bituminous concrete in automatic and temperature controlled hot mixing with electronic operated 150-180 TPH batch type hot mix plant, transporting the hot mix from HMP to work at site by tippers and laying, spreading uniformy by means of hydrostatic paver finisher and rolling and cosolidation to the required gradient and camber with 8 to 12 tonne smooth wheeled, vibratory and tandem power roller, complete all as per Clause 507 MORTH (5th Rev) specification and all as specified and as directed. Note for item No 4 :- (i) Paving bitumen of Grade VG-30 for SDAC shall be used and procured by the contractor under his own arrangement and at his own cost. (ii) Cost of all the materals, T&P labour etc. required for providing and laying bituminous concrete (SDAC) including procurement of bitumen as specified here-in-before, stone aggregate & sand, cement etc. rolling and all other elements required for entire completion of the job shall be deemed to be included in the unit rate quoted for this item. (iii) Computerized print out of data of bituminous concrete in automatic and temperature controlled hot mixing plant shall be provided to the GE by contractor. (iv) A trial patch of 30 Sqm will be carried out by the contractor as specified and directed by GE.

M& L for providing, laying, spreading premix bituminous macadam with crushed and graded stone aggregate mixed together with 4% of paving bitumen of grade VG-30 by weight of total mix including heating bitumen to the required temperature, mixing bituminous macadam in automatic and temperature controlled hot mixing with electronic operated 150-180 TPH batch type hot mix plant, transporting the hot mix from HMP to work at site by tippers and laying, spreading uniformaly by means of hydryostatic paver finisher and rolling and consolidating to the required gradient and comber (consolidated thickness 75 mm or less with 8 to 12 tonne smooth wheeled, vibratory and tandem power roller, complete all as per Clause 507 MORTH (5th Rev) specification all as specified and as directed. Note :- (i) The contractor shall quote the rate against item considering 4% VG-30 bitumen content. Job Mix Formula as per Clause No 505.3.3 of MORTH (5th Rev) for BM shall be obtained CRRI/IIT, SEMT wing CME Pune or NIT or Govt Engineering College for obtainig Optimum Binder Content (OBC) by the contractor without any financial effect to the Department and same shall be submitted to the Accepting Officer for approval. Any variation in binder content on Minus side shall be adjusted @ 50/Kg of binder and no adjustment shall be made on Plus side. (ii) The bituminous macadam (BM) shall be covered with top layer/wearing course within a maximum of 48 hours. If there is to be any delay by the contractor the course shall be covered by seal coat to the requirement of Clause 512 of MORTH (5th Rev) before opening to the traffic. the seal coat in such cases shall be considered incidental to the work and shall not be paid for separately. (iii) Job mix formula shall be approved by Accepting Officer. Note for Serial Item No 4 & 5 :- (iv) Batch type Hot mix plant should be located at a distance of 15 to 20 kilometers from the site with a travel time of maximim 30 minutes. (v) SDAC and BM layers should be laid jointlessly, using a paver of suitable size as per the road width, to ensure proper Jointless uniform laying.

Repair to potholes any depth, not exc 1 sq m each including sweeping free from dust and mud, or water, scoring sunken surfaces in roads, paths, etc. cutting around edges to at least 25 mm in depth, making good by applying tack coat @ 5 kg per 10 sq m, putting in premixed bituminous macadam, well rammed and sealed with binder 9.8 kg per 10 sq m, blinded with 0.09 cu m of stone chippings, 6.3mm size and again well rammed (including supply of premixed macadam, binder and chippings). depth of potholes exc 30 mm complete all as specified and directed.

M&L 2.00 mm thick painting line , stop line dashes arrows , letters brackets and similar work on bituminous/concrete pavement/path surfaces as per IRC pattern with thermoplastic road marking paint of approved quality white/golden/yellow as per approved colour shade mixed with radium glass beads and make conforming to BIS : 3262-1989 with special applicator machine exceeding 10 cm wide complete all as per manufacture's instruction and as directed.

S & F in repair metal tubular dealineator made out of ABS round body fitted with 2 Nos 65 mm dia highly reflective reflectors made out of PMMA and mounted on 45/50 mm dia mild steel pipe of 600 mm height duly powder coated and thermo plastic elastomer 3 bands of green, red and yellow reflector radium tape of 25 mm wide strips with anti theft steel net for reflector protection including embedding in PCC 1:2:4 (300x300x300mm) type B1 complete all as specified and directed.

Supply and fixing in replacement Convex mirror with polycarbonate body , 80 cm dia , suitable for road turning , intersections , curves , T- junctions etc with clear and definite mirror image having 130 degress of viewing angle , fixed to MS pipe/wall or embedding in PCC 1:2:4 (300x300x300mm) type B1 in repairs , complete of make Gogia Plastic or equipment as approved by GE

Supply and fixing in replacement cat eye solar reflective type of metal body alloy of size 100mm x 100mm x 20mm with PAMA striplens reflector of model No. DA 972.0 fixed with and incl MS stud of suitable size as per manufactures instructions and as directed.