Construction of foundation for 220 KV Bay for NPH -VKIA UG cable at 220 KV GSS VKIA

Earth work in excavation by mechanical means (Hydraulic Excavator )/ manual means in foundation trenches or drains (not exceeding 1.5 m in width or 10 sqm on plan) including dressing of sides and ramming of bottoms, lift upto 1.5 m, including taking out the excavated soil and depositing and refilling of jhiri with watering & ramming and disposal of surplus excavated soil as directed with in a lead of 50 meter. All kinds of soils

Providing and laying in position cement concrete including curing, compaction etc. complete in specified grade excluding the cost of centering and shuttering - All work up to plinth level. 1:4:8 (1 cement : 4 coarse sand : 8 graded stone aggregate 40 mm nominal size).

Providing and laying in position specified grade of cement concrete for all RCC structural elements upto plinth level including curing, compaction, finishing with rendering in cement sand mortar 1:3 (1 cement: 3 coarse sand) and making good the joints and cost of plastizers( if required) excluding the cost of centering, shuttering and reinforcement. M20 grade Nominal Mix / Design Mix

Centering and Shuttering with plywood or steel sheets including strutting, propping bracing both ways and removal of formwork for foundation , footings, strap beam, raft , bases of columns etc.

Providing and fabricating reinforcement for R.C.C. work including straightening, cutting, bending, placing in position and binding (including cost of binding wire) all complete up to floor five level. ('Original producers' who manufacture billet directly from iron ores and roll the bilets to produce steel conforming to IS:1786)Thermo-mechanically Treated bars (Conforming of relevent IS code)

P&F rigid PVC Pipe (IS:4985 mark) class II/ (4 Kg. /Cm2.) approved quality /make including joining the pipe with solvent cement rubber ring and lubricant. 110 mm dia

Demolishing cement concrete manually/ by mechanical means including disposal of material within 50 metres lead as per direction of Engineer-in-charge. 1: 4: 8 or leaner mix.

Random Rubble stone masonry for with hard stone in foundation and plinth in Cement Sand mortar above 30 CM thick wall in:Cement Mortar 1:6 ( 1-Cement : 6-Sand).

Cement concrete flooring 1:2:4 (1 cement : 2 coarse sand : 4 graded stone aggregate) finished with a floating coat of neat cement including cement slurry, making of lines or groove etc complete but excluding the cost of nosing of steps etc. complete.40mm thick with 20mm thick nominal size aggregate.

Providing and laying in position cement concrete including curing, compaction etc. complete in specified grade excluding the cost of centering and shuttering - All work up to plinth level. M15 grade Nominal Mix 1: 2: 4 (1 cement : 2 coarse sand : 4 graded stone aggregate 20mm nominal size).

Plaster on new surface on walls in cement sand mortar 1:6 including racking of joint etc. complete fine finish :20mm thick.

Add extra for Random Rubble stone masonry with hard stone in Wall upto 30cm. and less thickness.

Supply of 40 mm stone aggregate ( material code 293@ 893 RS/cum ) (carriage of material building rubbish stone metal grit ballast etc.) FOR 20 KM @201 per cum ))

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Supplying and fixing of 30mm thick ferrow cement RCC cable trenches covers upto a span of 1200mm of CC grade M-25 with all lead and lift complete having outer frame of MS flat 30x3mm and reinforcement consisting of 6mm dia MS round bar both way at the spacing of 8 to 10 cm C/C as required to adjust the spacing welded with outer frame & binding wire in middle with two layers of G.I. wire mesh 12mm shape of 24 gauge including proper quantities of concrete additional admixture like plasticizer , bond improving compound etc. manufacture with vibro pressing system,20 % covers shall have lifting hooks of 10 mm dia plain round bar to be fixed as directed . MS flat/hooks exposed shall be painted with two coats of superior quality corrosion resistant paint. The above covers shall to take for live load of 2000 Kg/sqm and minimum ultimate load of 3000 Kg/sqm under deflection not exceeding L/25 .

Labour charges or spreading of avai;able 20 to 63 mm nominal size hand / crusher broken stone aggregate in uniform layer of 100 mm thickness in yard of any substation (charged /uncharged GSS ) with manual / mechanical means as permitted by engineer incharge with due care as per safety norms of substation complete in all respect with all lead and lift ( pay,emt shall be done as per stack measurement after ded of voids as per norms ) (RVPNL/CE/CIVIL/F./JPR/D. 193 DATED 26.04.2021)