CWE/CHM-122/2025-26 SPECIAL REPAIR TO INTERNAL ROADS, FOOTPATH AND CULVERTS IN SECTOR A AND SUNRISE COLONY UNDER AGE B/R I OF GE CHANDIMANDIR AT CHANDIMANDIR MIL STN

Preparation of 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 specifed and directed by Engineer-in-Charge.

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 bitumenous surface as specified in Table 500-5 of MoRT&H specification for road and bridge works 2013, using mechanical sprayer after cleaning of existing surface complete all as specifed and directed by Engineer-in-Charge.

M&L for Bitumenous concrete (BC) 30 mm thick (consolidated thickness) layer confirming to clause 507 of MORT&H specifications for road and bridge work (Fifth Revision) including cost of coarse aggregates, fine aggregates, filler with 5.4 % binder (VG-30) contents by weight of total mix, crushed aggregate of grading 2, anti stripping agent, warm mix additives (quantity, quality and grade as per the approved job mix formula) etc, cleaning and pre-heating of the mineral aggregate, filler & bitumen of specific temperature throughly mixing with binder of specified bitumen contact, anti stripping agent, warm mix additives as per mix design in hot mix plant (batch type) of 100-120 TPH capacity, carrying the hot mixed materials by means of tipper, trucks or any other approved and and suitable arrangements, laying and hot premixed materials over the prepared surface by means of paver finisher ......Contd..

Contd.. including manual operation as and when required for proper grade, including level and camber through rolling with power roller 8 to 12 tonnes smooth wheeled, vibratory and tendom roller with necessary hand packing and pinning to give an even surface including running expense of all plants and machineries, inclusive of proper traffic control during laying to the satisfaction of Engineer-in-charge, required quality control tests at required interval etc complete in all respects complete all as specified and as directed by Engineer-in-Charge. Notes : (i) Job Mix formula as per clause No. 505.3.3 of MORT&H specification for road and bridge work (Fifth Revision) for bituminous concrete shall be got designed from NIT/CTL/Govt Engg Collage and shall be got approved from GE in writing well before commencement of work without any financial effect to the department. Also the bitumen content shall not be less than 5.4 % by weight of total mix as per clause 507.2.5 of MoRT&H specifications (Fifth Revision).