REPAIRS TO CERTAIN ROADS AND PERIPHERY ROAD OF TECHNICAL AREA UNDER AGE BR -I UNDER GE I RND RCI, HYDERABAD

Repair to isolated potholes, depth of potholes exceeding 30mm and not exceeding 1.5 sqm each including sweeping free from dust and mud, or water, scoring sunken surfaces in roads, paths, etc., cutting edges to at least 25mm in depth, making good by applying tack coat of VG 10 @ 5Kg per 10 sqm, putting in premixed bituminous macadam, well rammed and sealed with binder 9.8 Kg per 10 sqm, blinded with 0.09 cum of stone chippings, 6.3 mm size and again well rammed (including supply of premixed macadam, binder and chippings) complete all as specified and as directed.

M&L, Premix bituminous macadam laid rolled and compacted (Consolidated thickness 75mm or less) with binder content at 4% by weight of total mix using Paving bitumen VG-30 as binder, by hot mix process and laid by mechanical paver, rolled and compacted to gradient and camber required using power roller of capacity exceeding 8 ton and not exceeding 12 tonne complete all as specified and directed. Note:- (a) BM shall be as per MORTH specifications including minimum binder content mentioned therein and as detailed in particular specifications.

M&L, Preparing existing black top surfaces of bituminous roads by brushing with wire brushes for removing caked mud etc., sweeping with brooms and finally cleaning surface with air compressor to remove all loose dirt etc., and complete all as specified and directed.

M&L, applying evenly a tack coat with paving bitumen VG-10 @ 5Kg/10 sqm over black top surfaces complete all as specified and directed.

M&L, Premixed Bituminous Semi Dense Asphaltic Concrete, 30mm consolidated thickness with 5.5% binder with binder content by weight of total mix, using paving bitumen of Grade VG-30 as binder by hot mix process and laying with mechanical paver, rolled and compacted to required camber or gradient using power roller of capacity exceeding 8 tonne and not exceeding 12 tonne complete all as specified and directed. Notes:- (i) Thickness of semi dense asphaltic concrete and quantities of materials as mentioned in particular specifications/SSR are the minimum. The quoted rate shall also be deemed to include for provision of more materials in comparison to those mentioned/specified in the item, if required, to achieve the required level, gradient, camber and shape all as directed by the GE. (ii) Hot mix plant of adequate capacity shall be used for heating and mixing stone and fine aggregate and binder (bitumen) and semi dense asphaltic concrete shall be laid in single layer with self propelled mechanical paver all as directed by the GE. (iii) Contractor’s quoted rates shall be deemed to include all these aspects.

M&L, 100mm thick (spread thickness) filled with moorum/red bajri as in road side berms, spread, rolled and compacted to required camber and gradient using power roller of capacity exceeding 8 tonne and not exceeding 10 tonne complete all as specified and directed. Note for item No 1 to 6: Works under Sl item No 1 to 6 are required to be carried out at locations as directed by Engineer in Charge. Contractor's quoted rate shall be deemed to include for the same and No claim whatsoever will be entertained at a later stage.

M & L for preparing bituminous surfaces of road and marking 2.5mm thick centre lines, stop lines, dashes, arrows etc. and the like not exc 10 cm wide on roads pavements with hot applied thermoplastic road marking paint of approved colour confirming to BS 3262-1989 with special applicator machine all as per manufacturers instruction complete all as specified and directed

Supply and fixing in repair 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 including MS stud of suitable size as per manufactures instructions complete all as specified and directed.

Supply and fixing in repair metal tubular delineator 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 (150x150x300mm) type B1 complete all as specified and directed.

Providing and fixing Glow studs of size 100x20 mm made of heavy duty body shall be moulded ASA (Acrylic styrene Acryoretrite) or HIP (High Impact polystrene) or ABS having electronically welded micro-prismatic lens with abrasion resistant coating as approved by Engineer in charge. The glow stud shall support a load of 13635 kg tested in accordance with ASTM D4280. The slope-reflective surface shall be 35(+/- 5) degree to base. The reflective panels on both sides with at least 12 cm of reflective area up each side. The luminance intensity should be as per the specification and shall be tested as described in ASTM I: 809 as recommended in BS:873 part 4: 1973. The studs shall be fixed the road surface using the adhesive confirming to IS, as per procedure recommended by the manufacturrer complete and as per direction of Engineer-in-charge.