Construction of Heliport at Kangnidhar, mandi Distt.Mandi

Amount

Excavation in soil in Hilly area by all means in all kinds of soil such as pick work, jumper work, blasting work both in soft and hard rock with chiselling/wedging out rock (where blasting is prohibited) and other intermediate classification of soil including cutting and trimming of side slopes and disposal of unserviceable material by mechanical transport and stacking the serviceable/ useful material on road berms as per technical specification clause 1603.1, 1603.2 or directed by the Engineer-in-charge. The recovery of 4001.59 cubic metre @ Rs. 300/- per cubic metre amounting to Rs. 12,00,477/- only, shall be done on prorata basis for the quantity of cutting in earth work effected. The work shall be executed in workman like manner and avoids any damages to the private/ Govt. property in the vicinity of work site, if damage access to any property during the course of execution it shall be the absolute responsibility of the contractor which shall have to be duly compensated by him in all cases including carriage of material in all leads, lifts as per the entire satisfaction and direction of Engineer-in-Charge.

Earth work in excavation in all kinds of soil for structure as per drawing and technical specifications Clause 305.1 including setting out, construction of shoring and bracing, removal of stumps and other deleterious material and disposal upto any lead and dressing of sides and bottom and back filling in trenches with excavated suitable material including carriage of materials with in all leads, lifts and other incidentals.

Provding and laying of boulder apron laid in wire crates with 4mm (four millimetre) dia GI wire conforming to IS: 280 and IS:4826 in 100mmX100mm (one hundred millimetre into one hundred millimetre) mesh (woven digonally including 10per cent extra for laps and joints laid with stone boulders weighing not less than 25kg (twenty five kilogram) each as per drawing and techinical specification clause 1301 including carriage of materials with in all leads, lifts and other incidentals.

Back filling behind abutment, wing wall and return wall complete as per drawings and technical specification Clause 1204.3.8. Granular material including carriage of materials with in all leads, lifts and other incidentals as per direction of Engineer in charge.

Providing and laying concrete for plain/reinforced concrete in open foundations complete as per drawing and technical specification clauses 802, 803, 1202 and 1203, 1:4:8 (One cement : four sand : eight graded stone aggregate 25mm (twenty five millimeter) nominal size including carriage of materials with in all leads, lifts and other incidentals.

WBM Grading-1-(By Manual Means) 90mm to 45mm (ninty millimetre into forty five millimetre) Providing, laying, spreading and compacting stone aggregates of 90mm to 45mm (Ninety millimetre to Forty five millimetre) sizes to water bound macadam specification including spreading in uniform thickness, hand packing, rolling with smooth wheel 80-100 kN (Eighty - hundred KN) static roller in stages to proper grade and camber, applying and brooming stone screening/ binding materials to fill-up the interstices of coarse aggregate, watering and compacting to the required density Grading-I as per Technical Specification Clause 405. By Manual Means including carriage of materials with in all leads, lifts and other incidentals.

WBM Grading-2 (By Manual Means) 63mm to 40mm (sixty three millimetre into forty millimetre) Providing, laying, spreading and compacting stone aggregates of 63mm to 45mm (sixty three millimetre to Forty five millimetre) sizes to water bound macadam specification including spreading in uniform thickness, hand packing, rolling with smooth wheel roller 80-100 kN (Eighty- hundred Kn) static roller in stages to proper grade and camber, applying and brooming, stone screening/ binding materials to fill up the interstices of coarse aggregate, watering and compacting to the required density grading-II as per Technical Specification Clause 405 By Manual means including carriage of materials with in all leads, lifts and other incidentals.

Providing, laying, spreading and compacting stone aggregates of 53mm to 22.4 mm (Fifty three millimetre to twenty two point four millimetre) sizes to water bound macadam specification including spreading in uniform thickness, hand packing, rolling with smooth wheel roller 80-100 kN (Eighty- hundred Kn) static roller in stages to proper grade and camber, applying and brooming, stone screening to fill up the interstices of coarse aggregate, watering and compacting to the required density Grading-III as per Technical Specification Clause 405 By Manual means including carriage of materials with in all leads, lifts and other incidentals.

Providing and applying priming / tack coat with Bituminous S-90 /VG-10 @ 1.0 Kg per sqm (one point zero kilogram per square meter) on existing WBM surface cleaned with mechanical brooms as HPPWD / MORD specification including hauling/ carriage of materials through all modes of transportation with in all leads and lifts of materials and other incidentals.

Providing and applying primer coat with Bitumen emulsion (SS-I) on prepared surface of granular base including cleaning of road surface and spraying primer at the rate of 0.70-1.0 Kg/ sqm (Zero point seven zero to one point zero kilogram per square metre) using mechanical means as per Technical Specification Clause 502 including hauling/ carriage of materials through all modes of transportation with in all leads and lifts of materials and other incidentals.

Providing and applying tack coat with bitumen emulsion (RS-I) on the dry and hungry bitumen prepared surface cleaned of dust and extraneous material with Hydraulic brooms or any other approved equipment and spraying priming at the rate of 0.25-0.30 Kg. per sqm ( zero point two five to zero point three zero kilogram per square metre) with emulsion pressure distributor equipped for spraying uniformly complete as per technical specification clause 503 including carriage of material within all leads, lifts and other incidental charges and as per the entire satisfaction and direction of Engineer-in-Charge.

Providing, laying and rolling of open-graded premix carpet of 20 mm (Twenty millimetre) thickness composed of 13.2 mm to 5.6mm (Thirteen point two millimetre to Five point six millimetre) aggregate either using penetration grade bitumen VG-10/ S-90 to required line, grade and level to serve as wearing course on a previously prepared base, including mixing in a suitable plant, laying and rolling with a three wheel 80-100 kN (Eighty - hundred kN) static roller capacity, finished to required level and grades to be followed by seal coat of Type B as per technical specification Clause 508 By Manual/ Mechanical means including carriage of materials with in all leads, lifts and other incidentals.

Providing and laying 25mm (twenty five millimeter) thick bituminous concrete with 100-120 (hundred-one hundred twenty) TPH batch type hot mix plant producing an average output of 75 (seventy five) tonne per hour using crushed aggregates of specified grading premixed with bituminous binder VG-30 @ 5.4 to 5.6 (five point four to five point six) percent of mix and filler transporting the hot mix to work site laying with 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 MoRT & H specification Clause 509 complete in all respects including carriage of materials with in all leads, lifts and other incidentals.

Providing and laying seal coat sealing the voids in a bituminous surface laid to the specified levels, grade and cross fall using Bitumen S-90/ VG-10 grade Type B as per Technical Specification clause 510 by manual/ mechanical means including carriage of materials with in all leads, lifts and other incidentals.

Bhupinder Paul Mahajan