PROVN OF BLACK TOP METALLED ROAD TO IMPROVE CONNECTIVITY AT GANDHIDHAM MILITARY STATION UNDER GE (ARMY) BHUJ

Surface excavation over areas,n exc 1.50 m deep and getting out in soft/loose soil complete all as specified and directed.

Rolling and consolidation to required gradient and camber formation surfaces (cutting or filling) of roads using 8 to 12 tonne power roller including filling in depression which occur during rolling (incl berm) complete all as specified and directed.

Material and labour for laying and compacting 150mm thick (compacting thickness) granular sub base courses (GSB) gradings per Grade I as specified Table 400-1 of MORTH specification for road and bridge works,2013 in a single layer over compacted sub grade with naturasand ,crushed gravel crushed stone crushed slagor 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 80-100 KN static weight for acheiving required compaction density of at least 98% of the maximum Dry density.Consolidating to required gradient and camber complete all as specified and directed with finished surfaces tolerances as per table 900-1 of MORTH rolled and consolidated to required gradient and camber with 8 to 12 tonne power roller complete all as specified and directed.

Material and labour for laying and compacting 150 mm thick (compacted thickness) Wet mix Macadam (WMM) laid in two layers of 75 mm each grading as per table 400-13 of MORTH specification for Road and Bridge works 2013 manufactured in WMM plant material comprising of clean, crushed,graded aggregate and granular material premixed with water to a dense mass,spreading with sensor paver and rolling with vibratory roller of capacity 80-100KN static weight and consolidating to required gradient and camber complete all as specified and directed, the finished surface tolerance to be as per Table 900-1 of MORTH specification for road and bridge works 2013 all as specified & directed

Material and labour for preparing unsurfaced WMM 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.

Applying evenly a prime coat of cationic bitumen emulsion SS1 conforming to IS :8887 at a rate application of 0.7-1 kg/sqm on surface of WMMIVVBM as specified in Table 500-3 of MORTH specification for road and bridge works 2013,using mechanical sprayer complete all as specified and directed. finally fanning the cleaned surfaces with gunny bags to remove all loose dirt etc, complete all as specified and directed.

Material and labour for premix bitumineous macadam not exceeding 50mm thickness (consolidated thickness) using hot mix plant and mechanical paver with 4% binder (paving grade bitumen any penetration) content by weight of total mix,rolled and compacted to required camber and gradient complete all as specified and as directed.

Material and labour for 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 bitumineous surface as specified in Table 500-5 of MORTH specification for road and bridge works 2013,using mechanical sprayer after cleaning of existing surface as specified and directed.

Material and labour for bitumineous premix semi dense asphaltic concrete, 40mm consolidated/compacted thickness using hot mix plant and mechanical paver with 5.5% binder (paving bitumen VG-30 Gde) binder content by weight of total mix,rolled and compacted using 8 to 10 tonne power road roller to required camber and gradient complete all as specified and as directed by engineer in charge.

Removing excavated soil material exc. 250 m but n exc. 500 m and depositing where directed.