PROVN OF PQC PAVEMENT AND ALLIED WORKS AT AF STN JAISALMER

Demolition or Scarifying or picking gravelled, macadam or bituminous macadam surfaces in area exc 400 sqm and depth exc 50 mm thick complete as specified and directed (DAC Removal).

Demolition of stone slab and tiles of any description or thickness in floor apron etc., laid dry and pointed complete as specified and directed.

Spreading, levelling, well ramming including watering as reqd in layers n. exc 25cm thick all as specified and directed. Note: Compaction of earthfilling is ordered to be carried out by heavy mechanical machinery or to the standard proctor density under optimum moisture conditions not less than 95%, deduction shall be 5 percent.

Earth work in excavation in all kind of soils by mechanical means (Hydraulic excavator) means over areas (exc. 30 cm in depth, 1.5 m in width as well as 10 sqm on plan and n.exc. 1.5m in depth) including getting out and disposal of excavated earth lead upto 50 m and lift upto 1.5m, complete all as specified and directed.

Earth work in excavation in ordinary rock by mechanical means (Hydraulic excavator) means over areas (exc. 30 cm in depth, 1.5 m in width as well as 10 sqm on plan and n.exc. 1.5m in depth) including getting out and disposal of excavated earth lead upto 50 m and lift upto 1.5m, complete all as specified and directed.

Rolling and consolidating formation surface in cutting with power roller exc 8 tonne and not exc 12 tonne to achieve 98% (density at OMC / modified proctor density) complete all as specified and directed.

Material and labour for laying and compacting of 150 mm thick (compacted thickness) Granular Sub Base course (GSB) grading as per Grading V in single layer as specified in Table 400-1 of MoRTH specification 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 complete all as specified and directed. The materials shall be mechanically mixed, spread and levelled on the subgrade by using motor grader of adequate capacity, and rolled with vibratory roller of capacity 80-100 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 specifications for Road and Bridge works, 2013.

Material and labour for laying and compacting of 200 mm thick (compacted thickness) Granular Sub Base course (GSB) grading as per Grading V in single layer as specified in Table 400-1 of MoRTH specification 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 complete all as specified and directed. The materials shall be mechanically mixed, spread and levelled on the subgrade by using motor grader of adequate capacity, and rolled with vibratory roller of capacity 80-100 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 specifications for Road and Bridge works, 2013.

M & L for laying and compacting 150mm thick (compacted thickness) Wet Mix Macadam (WMM) laid in single layer, 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 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 9000-1 of MoRTH specifications for Road and Bridge works 2013 complete all as specified and directed.

M & L for providing and laying Dry Lean Concrete (DLC) 150 mm thick of aggregate gradation as per Table 1 of SP 49:2014 having 7 day average compressive strength not less than 10 MPa. Minimum cement content not less than 140 Kg/Cum, DLC mixed in Batching Plant, transported to site and laid by electronic sensor paver including spreading and compacting using high amplitude tamping bars of paver (initial compaction) further by double drum smooth wheeled vibratory rollers with 80-100 KN static weight to achieve minimum dry density not less than 98% of maximum Dry Density, necessary finishing etc complete all as specified and tolerance to be as per Table 900-1 of MoRTH specifications for Road and Bridge work 2013 complete all as specified and directed.