PROVN OF INSIDE ROAD AT GTA AND SPL REPAIR TO ROADS IN ARTY BDE AT NAA UNDER GE (N) TEZPUR

Surface excavation not exceeding 30 cm deep and averaging 15 cm deep and getting out in soft/loose soil, all as specified and directed.

M&L for forming embankment with approved earth obtained from outside of MoD land, including raising (or lowering) earth, spreading in layers n. exc. 30 cm thick, watering, ramming/rolling and finishing to required size, shape, etc. n. exc. 1.5m high from base complete in all respect as specified and directed.

Removing excavated material exceeding 500 m but n. exc. 1.5 km and depositing where directed.

Rolling and consolidating formation surfaces in cutting using power roller 8–12 tonne power road roller complete in all respect as specified and directed..

Laying and compacting 150 mm thick (compacted thickness) Granular Sub Base Course (GSB), grading as per Grade IV, as specified Table 400-1 of MORTH Specifications for Road and Bridge Works, 2013, in a single layer over compacted subgrade with natural sand, crushed gravel , crushed stone, crushed slag or combination thereof as per the grading required. The materials are mechanically mixed, spread and levelling on the subgrade by using motor grader of adequate capacity and rolling with vibratory roller of capacity 80-1 00 KN static weight for achieving required compaction density of atleast 98% of the Maximum Dry Density. Consolidating to required gradient and camber complete all as specified and directed with finished surface tolerances as per Table 900-1 of MORTH sppecifications for Road and Bridge works 2013.

Laying and compacting 150 mm thick (compacted thickness) Wet Mix Macadam (WMM), grading as per Table 400-13 of MORTH Specifications for Road and Bridge Works, 2013 manufactured in WMM plant material comprising of clean, crushed, graded aggregate and granular material premixed with waste to a dense mass, spreading with sensor paver and rolling with vibratory roller of capacity 80-1 OOKN static weight and consolidating to required gradient and camber complete all as specified and directed. The finished surface tolerances to be as per Table 900-1 of MORTH specifications for Road and Bridge works, 2013

Preparing unsurfaced WMM by brushing with wire brushes for removing caked mud etc. sweeping with brooms and finally fanning the cleaned surface with gunny bags to remove all loose dirt etc complete all as specified and directed.

M&L for applying evenly a priming/tack coat with catonic bitumen emulsion RS-1 confirm to IS:8887 @ 7.5 Kg per 10 Sqm on surface of WBM as specified in table 500-3 of MORTH using mechanical sprayer on WBM surfaces and black top surfaces complete all as specified and directed

M&L Premix bituminous, macadam using paving bitumen grade VG-30 any penetration content @ 4% by weight of total mix laid /rolled and compacted to required gradient and camber with 8-10 tonne power roller and rolled to a uniform smooth surface (any consolidated thickness) complete all as specified and directed. Notes:- The contractor's quoted rates shall also be deemed to include the following elements: (i) The contractor shall get the mix design done through National Test House, SEMT wing CME, Regional Research Labs, IITs, National Institutes of Technology, Govt Engineering College or any Govt laboratories and the same shall be got approved from the GE before providing Bituminous Macadum. (ii) If actual design mix comes less than 4% binder content, then the rate of recovery of bitumen shall be as per rate in purchase vouchers per kg for the purpose of adjustment. However, no adjustment shall be made if the binder content is required more than 4%.

M&L for preparation of old black bituminous 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 directed.