Under the State Sector Improvement work of internal roads of Doon Vihar Mussoorie Constituency in Dehradun District

Providing and Laying of Interlocking Concrete Block (M-35) Pavements having thickness 80 mm as per drawings and Technical Specification Clause 1504

Excavation in foundation for retaining, breast walls etc, in all types of soils and rocks including all lead, lift and disposal of surplus material as per direction of engineer -in - charge, as per drawing and technical specifications Clause 305.1 of MORD Specifiction

Gravel/Soil Aggregate Base/Subbase Nominal Maximum size Grading 40 mm (Table 2.3 of IRC SP 77-2008) Construction of Gravel/ Soil Aggregate Subbase/ Base by providing well graded material of nominal maximum size grading 40 mm as per Table 2.3 of IRC SP 77-2008, spreading in uniform layers with tractor mount appropriate grading arrangements on prepared surface,mixing by mix in place method at OMC with tractor mount appropriate rotavator attachment and compaction with three wheel 80-100 kN Static Roller capacity to achieve the desired density complete as perspecifications contained in Para 2.2, 3.6 and 3.7 of IRC SP 77-2008.

WBM Grading 2 Providing, laying, spreading and compacting stone aggregates of specific sizes to water bound macadam specification including spreading in uniform thickness, hand packing, rolling with three wheel 80-100 kN static roller in stages to proper grade and camber, applying and brooming, crushable screening to fill-up the interstices of coarse aggregate, watering and compacting to the required density Grading 2 as per Technical Specification Clause 405.

WBM Grading 3 Providing, laying, spreading and compacting stone aggregates of specific sizes to water bound macadam specification including spreading in uniform thickness, hand packing, rolling with three wheel 80-100 kN static roller in stages to proper grade and camber, applying and brooming, crushable screening to fill-up the interstices of coarse aggregate, watering and compacting to the required density Grading 3 as per Technical Specification Clause 405.By Mechanical Means

Dismantling of Flexible Pavements Dismantling of flexible pavements and disposal of dismantled materials upto a lead of 100 m, stacking serviceable and unserviceable materials separately as per Technical Specification Clause 202 By Mechanical Means Bituminous Courses

Providing and applying tack coat with Bitumen emulsion (RS-1) using emulsion distributor at the rate of 0.20 to 0.25 kg per sqm on the prepared bituminous surface cleaned with Hydraulic broom as per Technical Specification Clause 503

Bituminous Macadam Providing and laying bituminous macadam with hot mix plant using crushed aggregates of grading as per Table 500.4 premixed with bituminous binder, transported to site upto a lead of 1000 m laid over a previously prepared surface with paver finisher to the required grade, level and alignment and rolled to achieve the desired compaction as per Technical Specification Clause 504.(Bitumen VG-10 @ 3.3% of the weight of mix has been used for analysis purpose. The choice of bitumen will depend upon the prevailing site conditions and shall be in accordance with Clause 504 of MORD) with Bitumen VG-30

Providing and laying Semi Dense Bituminous Concrete with the use of batch type HMP producing an average output of 75 tonnes per hour using crushed aggregates of specified grading, premixed with bituminous binder and filler, transporting the hot mix to work site, laying with a hydrostatic paver finisher with sensor control to the required grade, level and alignment, rolling with smooth wheeled, vibratory and tandem rollers to achieve the desired compaction as per MoRTH specification clause No. 508 complete in all respects Grading II - 10mm using VG - 10 bitumen (bituminous binder @ 5 % of mix)

Providing concrete for plain/ reinforced concrete in open foundations complete as per drawings and technical specifications Clause 802, 803, 1202 & 1203.P.C.C grade M 10 Nominal mix 1:3:6