WBIW/SE/EC/NIT-08(e)/2020-21

Without pumping out water but including shoring as required

Ordinary Cement concrete (mix 1:11/2 :3) with graded stone chips (20 mm nominal size) excluding shuttering and reinforcement,if any, in ground floor as per relevant IS codes. A) Pakur variety.

Hire and labour charges for shuttering with centering and necessary staging upto 4 m using approved stout props and thick hard wood planks of approved thickness with required bracing for concrete slabs, beams and columns lintels curved or straight including fitting, fixing and striking out after completion of works (upto roof of ground floor). A) 25 mm to 30 mm shuttering without staging in foundation.

Precast cement concrete blocks or lining units as per designed size ( 0.60 m x 0.60 m ) and specification, with well graded stone metal aggregate, includingdressing, ramming, shuttering, finishing the top surface with 1:3 cement and sand mortar, curing, transporting and laying the blocks or lining units at worksite in position, over filter, layer, keeping a gap of 6mm between the adjacent units, by sue of removable plyboards or non removable thermocol boards, with all leads and lifts, including supply and carriage of all materials complete. A) With Stone Aggregate (Pakur, North Bengal or Rajmahal varieties). i) Nominal Mix. 1:1.5:3 with 20 mm down coarse aggregate.

Making filter with well graded 40 mm down ballasts and laying uniformly behind weep holes, below pitching on bed, side slopes including supply and carriage of all materials to site including preparing bed with earthwork up to 30 cm depth, where necessary and compacting with wooden malllet after laying to achieve designed section as per direction of the Engineer- in - Charge (measurements will be on finished work / in stack after deducting necessary void). A) 1st class brick ballast.

Disposal / carriage of excavated earth / materials outside Government land by truck or by any other conveyance over kancha / pucca road including making access for plying the truck or any other conveyance beyond 300 m from the excavated point including cost of stacking, loading, unloading, transporting, arrangement of land, if required by agency, spreading and levelling as necessary etc. complete. (Measurement : By stacks at loading point after deducting voids as per rule. (This item can only be used after obtaining permission from the concerned Superintending Engineer).

Supplying Jhaw / Eucalyptus bullah piles at work site, including dressing and making one end pointed. A) 15 cm av. Diameter.

Labour for driving Jhaw / Eucalyptus bullah piles by monkey in all sorts of soil including hoisting and placing piles in position, protecting the pile head with iron ring and cutting and shaping heads before and after driving and including hire and labour for necessary driving appliances and all tackles. A) 15 cm av. Diameter.

Taking out Jhaw / Eucalyptus piles from river bed or from elsewhere including carrying, stacking materials in the nearest stack yard. A) Up to 17.5 cm. diameter.