SPL REPAIR OF BLACK TOP ROAD AND PCC HARDSTANDING AT FSD NARIAN UNDER GE 862 EWS

Scarifying or picking up gravelled macadam or bituminous macadam surfaces area not exc. 400 Sqm and depth exc. 50mm but not exc. 100mm deep, complete all as specified & directed.

Material & labour for one layers of 75 mm thick (compacted thickness) WBM, with coarse aggregates of grading 2 (63 to 40mm size) or of grading 3 (50 to 20mm size), spread, rolled and consolidated to gradient and camber required using Granite, trap or basalt and rolled with 8 to 10 tonnes power roller, each layer will be consolidated separately and to required gradient and camber, complete all as specified.

Preparing water bound macadom 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., applying evenly a priming/ tack coat with bituminous primer using paving bitumen at 10 kg per 10 sq metre of road surface laying Bituminous premix semi-dense asphaltic concrete 40 mm consolidated thickness using paving bitumen VG-10, complete all as specified and directed.

Scarifying or picking up gravelled macadam or bituminous macadam surfaces area not exc. 400 Sqm and depth not exc. 50mm deep, complete all as specified & directed.

Providing premix bituminous macadam with 4% bitumen binder by weight of total mix laid/rolled and compacted to required gradient and camber (consolidated thickness 75mm or less) (paving bitumen VG-30) by weight of total mix spread, rolled and consolidated with 8 to 12 tonne power roller to required gradient and camber complete all as specified and directed. Note:- (I) In case the binder contents by weight of total mix is less than 4% as per per actual design mix, The prices adjustment shall be made as per average rates of all paid voucher for bitumen pertaining to this work. if the total binder contents as per design mix is more than 4% no prices adjustment shall be made for the same. (II) Job mix formula for bituminous macadam shall be obtained from the institutions specified in CA prior to commencement of work and shall be got approved from the GE. (iii) The Contractor shall submit certificate issued to Hot mix plant that plant is SDAC compliant before incorporating workat site. The Hot Mix plant visit has to be organized by Contractor for approval of GE. (iv) The plant shall be automatic type which must have facility to print the details of composition of material incorporated with all batches of SDAC.

Bituminous premix semi-dense asphaltic concrete 30 mm consolidated thickness using paving bitumen VG-30 wiith 5.5% binder content by weight of total mix rolled and compacted to required camber and gradient complete and rolled with 8 to 10 tonne power roller complete all as specified and directed. Note:- (I) In case the binder contents by weight of total mix is less than 5.5% as per per actual design mix, The prices adjustment shall be made as per average rates of all paid voucher for bitumen pertaining to this work. if the total binder contents as per design mix is more than 5.5% no prices adjustment shall be made for the same. (II) Job mix formula for Semi Dense asphaltic concrete shall be obtained from the institutions specified in CA prior to commencement of work and shall be got approved from the GE. (iii) The Contractor shall submit certificate issued to Hot mix plant that plant is SDAC compliant before incorporating workat site. The Hot Mix plant visit has to be organized by Contractor for approval of GE. (iv) The plant shall be automatic type which must have facility to print the details of composition of material incorporated with all batches of SDAC.

All as per item ser no 6 above but 40mm consolidated thickness semi-dense asphaltic concrete, complete all as specified and directed.

Preparing 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. and applying evenly a priming/ tack coat with bituminous primer at 05 kg per 10 sq metre using paving bitumen VG-10, complete all as specified and as directed.

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

M&L for preparing bituminous surfaces of road and marking 2.5mm thick centre lines, stop lines, dashes, arrows etc, and the like not exceeding than 10cm wide on roads pavements with hot applied thermo plastic road marking paint of approved colour confirming to BS 3262-1989 with special applicator machine all as per manufacturer's instruction including cleaning the surface by removing all dirt, dust & all other foreign matters, demarcation at site and traffic control, complete all as specified and directed.