PROVISION OF RUNWAY REHABILITATION SCHEME (RRS) THROUGH INDIGENOUS MIXER-CUM-DISPENSER MACHINE (IMDM) WITH RAPIGROUT UNDER AGE B/R-II AT AF STN CHABUA UNDER GE (AF) CHABUA

Earth work in excavation by mechanical means(Hydraulic excavator) means over areas (exceeding 30 cm in depth,1.5 m in width as well as 10 sqm on plan) including getting out and disposal of excavated earth lead upto 50 m and lift upto 1.5m,as directed by Engineer-in -charge.

All as per item no. 1 above but depth exceeding 1.5 m n.exc 3.0 m depth complete all as specified and directed.

M&L for filling of craters with broken stone boulders or quarred stone (boulders size 150 to 300 mm broken graded stone aggregate) interstices field,surface formed and rolled with 8 to 12 tonne capacity power roller complete all as specified and directed.

M&L for construction of granular sub base (GSB) proving 200 mm thick (compacted) in two layers of 100mm spread thickness layer by providing close graded granular sub base material of grading-II as per MORH table 400-1, mixing in machanical mix plant OMC, speding uniform layers with motor grader on prepared surface and compacting with vibratory power roller of 8 to 12 tonne capacity to achieve the desired density all as directed by Engr-in-Charge.

M&L for 30mm thick layers of sand laid over GSB including watering and compacting completed all as specified and directed.

M&L for 400 micron transparent High Density Polyethylene(HDPE) film sheet Grade I conforming to IS-10889 over sand layer complete all as specified and directed. Note(i)Side lap of 150 mm arid end lap of 300 mm shall be provided whichever required. The rate quoted shall be deemed to included for the tapes (ii) Clear area only shall be considered for payment purpose and nothing extra shall be advised for tapes.

M&L for filling 300 mm thick ( in two layers of 150 mm thick ) using 20 mm to 63 graded stone aggregate laying ,watering,rolling/compacting with 8 to 12 tonne power roller including filling of interstices for smooth riding,levelled and finished all as directed by Engr-in-Charge. Note for item no. 1 to 7: - (i) Contractor shall procure complete quantity of material as directed by Engr-in-Charge and staked on the site within one week from the date of commencement of work order. (ii). Adequate Tools and plants i.e JCB along with operator, Road roller with operator, water brozer alogwith operator, Crane with operator (2 tonne minimum load capacity) boom raising minimum upto 6-8 meters of height and labours shall be arranged within 24 hrs from the date of intimation by Engr-in-Charge. (iv) Safty goggles ( trasparent) - 20 Nos, Helmet - 15 Nos, Long boots- 04 Nos and reflective Jackets (yellow colour) -15 Nos (iv). The work is of urgent nature and to be commenced within 24 hrs from the date of intimation by Engr-in-Charge. (v) Supply of 12 Skilled labour at the time of exercise to carried out any type of works.