REPAIR TO BITUMINOUS CARPETING ALONGWITH POT HOLES AT CERTAIN PLACES IN TECH AND DOMESTIC AREA AT AIR FORCE STATION PURNEA

Amount

Material & Labour for Premix bituminous macadam (consolidate thickness 75mm or less) using crushed stone aggregate with binder (Paving bitumen VG-30 with 4% by weight of total mix) laid/rolled and compacted with hydrostatic mechanical paver/sensor paver as per requirment rolled and compacted to required radient and camber to smooth uniform surfaces with 8 to 12 tonne tandom vibratory roller to acheive required compaction complete all as specified and irected by Engineer-in-Charge. Note :- (i) The design mix shall got carried from IIT/NIT/Govt Engg College and the cost shall be inclusive inthe quoted rate.(ii) If the requirement of bitumen as per design mix is more than 4% the same shall be provided by the contractor at no extra cost to the Govt.

Material & Labour for repairs to pot holes of exc. 30mm depth, and n.exc. 1.00 sqm each including sweeping free from dust and mud or water, scoring sunken surfaces in roads, paths etc., cutting around edges to at least 25mm in depth and making good by applying tack coat with bituminous primer at 5kg per 10 sqm using paving bitumen VG-10 grade , putting in premix bituminous macadam, well rammed and sealed with binder using paving bitumen VG-30 grade @ 9.8 kg per 10 sqm blended with 0.09 cum of stone chippings, 6.3mm size and again well rammed (including supply of pre-mixed macadam, binder and chippings) complete all as specified and directed by Engineer-in-Charge.

Material & Labour preparation of old bituminous/ 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 as directed by Engineer-in-Charge.

Material & Labour applying evenly a priming / tack coat with bituminous primer @ 5 kg per 10 sqm with paving bitumen (grade VG 10) complete all as specified and directed by Engineer-in-Charge.

Material & Labour bituminous premix semi-dense asphaltic concrete 40mm consolidated thickness with 5.5 % binder (paving bitumen (grade VG 30) content by weight of total mix, spread evenly with mechanical paver to desired thickness and to the correct camber, rolled and compacted to required camber and gradient with 10 to 12 tonne power roller complete all as specified and directed by Engineer-in-Charge. Note :- (i) The design mix shall got carried from IIT/NIT/Govt Engg College and the cost shall be inclusive inthe quoted rate. (ii) Premix SDAC shall be procured from a Hot Mix Plant (iii) Exact quantity of binder to be used shall be ascertained by Design Mix. (iv) Minimum of 5.5 % of binder shall be used. However in case more than 5.5% of binder content is required as per design mix the same shall be provided by the contractor at no extra cost. (v) Bitumen content and density testing equipment should be readily available at site during work.

M&L for preparing & cleaning new black bitumenous surfaces of road by removing all dirt, seals, oil, grease and foreign material etc. with coir brushes or other means as required and applying 2.5 mm thick hot thermoplastic paint (retro reflective type) @ 5Kg per Sqm and applying glass gnt @ 300gms/Sqm over painted surface for road marking in white/yellow shade by fully automatic thermoplastic paint applicator machine, fitted with profile shoe gun beads dispencer propane tank heaters and profile shoe heatdriver by skilled operator on road surfaces complete all as specified and as directed. Note:- Refer MORTH specification of Para 803.4.2.1 and 800.4.2.2 on bitumenous surfaces in white/yellow colour super imposed with glass beads conforming to BS 6088 and MORTH specification and 803.4.3.3.

Material & Labour for dual direction road studs cat eye of impact ABS plastic/polycarbonate studs 100/100mm having ultra violet resistance colour (white, yellow & red) with plastic strips connecting to 31 mini retro reflectic glass beads of colour (white, yellow & red) to a side prov ded with steel zinc plated nail of dia 12mm and length 120mm for fixing to road surface by hammering including taking down old unserviceable studs complete all as specified and directed by Engineer-in-Charge. Note: The Contractor shall submit the PV of Cat eyes.Non-submission may lead to non payment of RAR/FB.The Eng-in-Charge shall keep the PV on record.

Demolition of unreinforce concrete in ground floors and pavings n exc 15 cm thickness (below or above ground level) complete all as specified and directed by Engineer-in-Charge.

Providing and laying at or near ground level factory made kerb stone of M-25 grade cement concrete in position to the required line, level and curvature, jointed with cement mortar 1:3 (1 cement: 3 coarse sand), including making joints with or without grooves (thickness of joints except at sharp curve shall not to more than 5 mm), including making drainage opening wherever required complete

M&L for preparation of new concrete surface of any described over 10cm width or girth and applying two coat of synthetic enamel paint complete, all as specified and as directed.

Schedule of Credit

M/S SHEO KUMAR SINGH AND SONS (BID ID -3328854)

M/S. R.D. Construction (BID ID -3327067)

M/s.Abhay Kumar Roy (BID ID -3327317)

M/s. Rakesh Roshan (BID ID -3330427)

RAJEEV KUMAR (BID ID -3330293)

M/s.Asha Enterprises (BID ID -3330028)

M/S. KESHAB CHANDRA GHOSH (BID ID -3328924)

M/S SATISH KUMAR SINGH & SONS (BID ID -3328431)