Upgradation of Patiala Samana Patran Road (SH-10) RD 75.60 to 97.00 km in District Patiala, Group no 1

Construction Work (Part-I)

Dismantling of flexible pavements thickness above 50mm by mechanical means and disposal of dismantled materials up to a lead of 1000 meters, stacking serviceable and unserviceable materialsseparately as per technical clause 202 of MORT&H specifications

Providing, laying, spreading and compacting graded stone aggregate to wet mix macadam specification including premixing the Material with water at OMC in mechanical mix plant, laying in uniform layers with paver in sub- base / base course on well prepared surface and compacting with vibratory roller to achieve the desired density complete as per technical clause 406 of MORT&H specifications

Providing and applying primer coat with bitumen emulsion SS on prepared surface of granular base including cleaning of road surface and spraying primer at the rate of 0.85kg/sqm complete as per technical clause 502 of MORT&H specifications

Providing and applying tack coat with bitumen emulsion RS using emulsion pressure distributor at the rate of 0.25 kg per sqm on the prepared bituminous surface/granular surface treated with prime coat after cleaning the surface complete as per technical clause 503 of MORT&H specifications

Dismantling of existing damaged Bitumen surface by Cold Milling Machine upto 30 mm depth

Excavation in Soil (any type) using Hydraulic Excavator CK 90 with hydraulic excavator of 0.9 cum bucket capacity including cutting, trimming bottom and side slopes, in accordance with requirements of lines, grades and cross sections, including all lifts and combined lead upto 60m.

Loosening, leveling and compacting original ground up to a level of 500mm below road crust, mixed with water at OMC, levelled, graded and compacted in layers by rolling so as to achieve minimum dry density as given in Table 300-2 for sub grade construction as per technical clause 305 of MORT&H specifications

Construction of granular sub-base by providing material as per grading-III ( Table 400-I of MORT&H 5th revision), mixing in a mechanical mix plant at OMC, spreading in uniform layers with motor grader on prepared surface and compacting with vibratory power roller to achieve the desired density, complete as per technical clause 401 of MORT&H specifications

Providing and laying dense graded bituminous macadam 50mm to 75mm thick with Batch type hot mix plant using crushed aggregates of specified grading, premixed with bituminous binder VG-40 @ 4.5%, laying with a Paver Finisher Mechanical to the required grade, level and alignment, rolling with smooth wheeled, vibratory and tandem rollers to achieve the desired compaction complete as per technical clause 505 of MORT&H specifications NOTES:- (i) Job mix formula for the dense bituminous macadam shall be provided by the agency and shall be got approved from Punjab PWD, B&R Research Laboratory Patiala before adoption at site for execution. (ii) The specification of this item for analytic purpose is kept with bitumen content @ 4.50% weight of mix variation as compared with job mix formula shall be paid/ deducted accordingly. The limits of variation shall be worked out with the approved formula. TECHNICAL NOTE:- I.) Apart from the conformity with the grading and quantity requirement of individual ingredients exhibited above the mix aggregate i.e. coarse and fine aggregate for dense bituminous concrete shall meet all requirements set forth clause 505 of MORT&H specifications. II.) The final grading for the aggregates required for dense bituminous macadam confirming to table 500.10 of MORT&H specifications shall be determined after getting the dense bituminous macadam designed from Punjab PWD, B&R Research Laboratory Patiala after obtaining 60% of material. The design mix so finally approved shall be termed as the approved mix. The aggregates shall be hydrophobic and of low porosity. The aggregates shall satisfy the physical requirement set forth in table 500-6 (addendum to latest revision). III.) The approved mix shall exhibit the following details source and location of all material:- (a) Binder expressed as percentage by weight of total mix. (b) Course expressed as percentage by weight of total mix. (c) Crushed bajri expressed as percentage by weight of total mix. (d) Fine aggregate expressed as percentage by weight of total mix. (e) A single definite percentage passing each sieve for mixed aggregates. (f) Density of dense bituminous macadam after compaction will be not less than 2.30 gm/CC