REPAIR TO CERTAIN ROADS IN TECH AREA AT AF STN ADAMPUR

M&L for repair to pot holes, depth not exceeding 30mm deep and area not exceeding 1sqm each including sweeping free from dust mud or water, scoring sunken surfaces, cutting around edges at least 25mm in depth, making good by filling in screened and graded metal, watering and well ramming, complete all as specified and as directed.

Scarifying or picking gravelled macadam or bituminous macadam surfaces exceeding 50mm but not exceeding 100mm deep, area not exc 400 Sqm by means of mechenical scarifier complete all as specified and as directed. Note: Rate quoted by contractor shall be deemed to be included for removal of rubble/debris outside MoD land.

M&L for preparing unsurfaced water bound macadem surfaces by brushing with wire brushes for removing caked mud etc., sweeping with brooms and finally fanning the cleaned surfaces with air compressor to remove all loose dust & dirt etc. including draining off water if any from pot holes and applying evenly a priming/tack coat with paving bitumen (VG-10 grade) @ 10Kg per 10 Sqm with mechanical sprayer complete all as specified and as directed.

M&L for providing Premixed bitumenous macadam not exceeding 75mm thick using paving bitumen @ 4% (VG-30) binder content by weight of total mix using 12 to 25mm graded crushed stone aggregate mixed in computerized hot mix plant, laid, rolled and compacted to required gradient and camber with mechanical paver and power roller 8 to 10 tonne capacity complete all as specified and as 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 surface with air compressor to remove all loose dirt etc. and applying evenly a priming/tack coat using paving bitumen of grade VG-10 @ 5 kg/10 sqm complete all as specified and as directed.

Material and labour for preparing Bituminous macadem surfaces by brushing with wire brushes , sweeping with brooms and finally fanning the cleaned surfaces with air compressor to remove all loose dust & dirt etc. and applying evenly a priming/tack coat with paving bitumen (VG-10 grade) @ 5Kg per 10 Sqm with mechanical sprayer complete all as specified and directed.

M&L for premixed semi dense asphaltic concrete 30 mm thick consolidated thickness, using combined graded aggregate i.e. crushed stone coarse aggregate, fine aggregate (sand) & filler (inherent filler/OPC 43 grade) of physical properties as specified (refer SSR Part-I of 2009), pre-heated, mixed with 4.5% to 5.5% binder content by weight of total mix using VG-30 grade bitumen, laid with mechanical paver, rolled & compacted to a uniform smooth surface with 8 to 12 tonne capacity tendom vibratory roller used in static mode complete all as specified and as 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 crushed stone coarse aggregate, fine aggregate and binder (bitumen). 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. (iv) The job design mix formula shall be carried out from the approved lab and be got approved from the GE before commencement of the work.

M&L for painting 2mm thick with thermoplast fluorescent paint of colour white or golden yellow or any other shade conforming to BS standard 3262 with 20% glass beads (inter mixed) applied hot with automatic (commercial) machine drive in strips after preparation of surfaces as per manufacturer’s instructions & according to the specifications laid down by IRC & MOST (Ministry Of Surface Transport)- Specifications 2001 (4th revision), making lines, broken lines/dashes, arrows etc. on roads and other like surfaces exceeding 10 cm but not exceeding 30 cm in width or girth complete all as specified and as directed. NOTE:- Road marking Paint must be done with Fully automatic thermoplastic Road marking machine, Model Name/ Number : SIGMATRMM13, Capacity 500 KG or equivalent.

S&F PE- plastic speed bumps (Heavy Duty) of size 750x250x75mm in yellow and black colour, filling in PCC 1:2:4 type B-0 using 12.5 mm graded stone aggregate to backs of bumps with and including drilling holes etc for securing with lag bolts to concrete surfaces/ steel spikes hardware for mounting to asphaltic surface complete all as specified and directed.

S&F in repair Convex Mirror 600 mm dia, polycarbonate reflected, outdoor type with hood ABS body including stand for fixing mirror, duly embedded in PCC 1:2:4 type B1 block of suitable size to bear self load and wind pressure complete all as per manufacturer's instructions complete all as specified and as directed.