REHABILITATION OF VADAKU KALMEDU TANK IN OTTAPIDARAM TALUK OF THOOTHUKUDI DISTRICT

Amount

Clearing the julifloora without uprooting and destroying them effectively as directed by the departmental officers .

Earth work in all soils except hard rock requiring blasting and conveying for formation of bund with lead of 0 to 100 metre deploying earth moving machineries and tippers including benching, formation of bunds, breaking clods, sectioning extra watering and consoitaton using power roller etc. complete complying with standard specification and as directed by the departmental officers.

Earth work excavating and depositing on bank with initial lead of 10M and initial lift of 2m in Hard stiff clay, stiff black cotton, hard red earth, shales, murram, gravel, stoney earth and earth mixed with small size boulders for open excavation. etc. complete complying with standard specification and as directed by the departmental officers.

Earthwork excavation for foundation in Hard stiff clay, stiff black cotton, hard red earth, shales, murram, gravel, stoney earth and earth mixed with small size of boulders hard gravelly soil inclusive of shoring to full depth strutting and bailing out water wherever necessary and refilling the sides of foundation with excavated soil other than sand in layers of not more than 15 cm thick, well rammed, consolidated and depositing the surplus earth in places as shown by the departmental officers with an initial lead of 10 metres and initial lift of 2 metres and clearing, levelling the site etc. complete complying with standard specification and as directed by the departmental officers.

Dismantling clearing away and carefully stacking materials usefull materials for reuse for any thickness of walls in brick or stone masonry in cement mortar walls under 3m high etc., complete complying with standard specifications and as directed by the Engineer incharge of work.

Dismantling, clearing away and carefully stacking the materials useful for reuse for any thickness of walls, plain cement concrete as directed by the departmental officers.

Supplying filling with the crushed stone sand and gravel mix 1:1 ratio in layers of not more than 15cm thick well watering compacting cost and conveyance materials etc. complete complying with standard specification and as directed by the departmental officers.

Providing and placing Plain Cement Concrete M10 grade using crusher broken hard coarse aggregate (well graded) of nominal maximum size of 40mm and downgraded to I.S specified grading using crushed stone sand(m-sand) (To achieve the specified characteristic strength of 10N/mm2 in 28 days) and mixing the ingredients in approved mixer including dewatering of the placement site by baling / pumping and diverting wherever necessary, placing concrete in layers and vibrating, water curing, finishing the surface with all leads and lifts etc., complete complying with standard specification and as directed by the Departmental Officers.

Providing and placing in position of plain Cement concrete of grade M15 using hard well graded aggregates with the nominal maximum size of coarse aggregate of 40mm (60%) and 20mm (40%); weigh batching the ingredients and mixing in approved mixers/batching plant using crushed stone sand (m-sand) (to produce concrete of the specified characteristic strength of 15 N/mm2 at 28days) including dewatering the placement site by bailing/pumping and by diverting wherever necessary; laying the concrete in layers of not exceeding 15 cm thick and in bays; vibrating, compacting and finishing the surface with all leads and lifts; watering curing complete so as to attain the profile and strength specified in the approved drawing & specifications etc., complete complying with standard specification and as directed by the Departmental Officers.

Providing and placing of Cement Concrete M15 grade with well graded aggregates and the nominal maximum size of coarse aggregate of 20 mm HBGS metal gauge weigh batching the ingredients using crushed stone sand(m-sand) and mixing in approved mixers/batching plant (to produce concrete of the specified characteristic strength of 15N/mm2 at28days) including dewatering of placement site bailing/pumping and by diverting water wherever necessary laying the concrete in layers not more than15cm thick and in bays, vibrating, compacting and finishing the surface, water curing so as to attain the profile and strength specified in the approved drawing and specification and including the cost component of providing rigid and smooth centering and shuttering wherever necessary for various depths below and above ground level as per the direction of the Departmental officers complete complying with standard specifications.

Providing and placing in position of Plain Cement concrete of M-20 using broken hard granite coarse aggregate (well graded) of nominal maximum size of 20mm and down graded to IS specified grading and using crushed stone sand(m-sand) ( to achieve the specified characteristic strength of 20 N / mm² in 28 days ) and mixing the incredients in approved mixer including dewatering of the placement site by baling/pumping and diverting wherever necessary placing in layers and watering, curing, finishing the surface with all leads and lifts etc., complete in all respects so as to attain the profile and strength as specified in the approved drawings and specification etc., complete complying with standard specifications and as directed by the Engineer incharge of work.

Providing and placing in position of Reinforced Cement concrete M20 grade for works with well graded hard aggregates and the nominal maximum of coarse aggregate of 20mm gauge weigh batching the ingredients and mixing in approved mixers/batching plant using crushed stone sand (m-sand) (to produce concrete of the specified characteristic strength of 20 N/mm2 at 28days) including dewatering of placement site by bailing/pumping and by diverting wherever necessary laying the concrete in layers and in bays, Vibrating compacting and finishing the surface so as to attain the profile and strength specified in the approved drawing and excluding the cost component of providing rigid and smooth centering and shuttering wherever necessary for various depths below ground level and various heights above ground level as per the direction of the Engineer complete in all respect but excluding the cost and placing of reinforced grill in position complying with standard specification

Supplying, fabricating and placing in position of ribbed steel bars of various diameters for all reinforced concrete works, including cost of rods and binding wire, labour charges for cutting the rods to the required lengths, bending, tying and fixing in position for various depths and heights below and above ground level complete as directed by the Engineer complying with specification.

Supplying and erecting steel centering for sides and soffits including necessary supports and strutting upto 3.29 m hight for plain surfaces such as R.C.C.slabs, vertical slabs, side slabs of R.C.C. works with all cross bracings using mild steel B.G.10 gauge sheets of size 90cm x 60cm stiffened with welded mild steel angles of size 25mm x 25mm x 3mm for boarding laid over silver oak (country wood) joists of size 10cm x6.5cm spaced at about 90cm centre to centre and supported by casurina props of 10cm to 13cm dia spaced at 75cm centre to centre etc., complete complying with standard specifications and as directed by the Engineer incharge of work. (The retrieved materials should be taken back by the contractor ). The payment should be made after the concrete is laid.

Centering for Without Strutting.

Centering for With Strutting

Providing and fixing best country wood plug with 50mm dia MS screw gearing rod 2.75m height support on 2Nos. ISMB 100 RJ joists of 1.50m lengthy and guide beam 1 No. of the same size resting in turn of MS base plate of 50*30mm size 6mm thick with cast iron horizontal head set and a collar plate of 300*300*6 mm thick fixed with necessary bolts and nuts and other fixture etc., complete complying with standard specifications and as directed by the departmental officers.

Providing cut stone Roughly dressed to size on all faces and set in cement morter 1:3 (one cement and three C.S. sand ) including fixing in position etc. complete as directed by the Engineer in charge of work complying with the standard specification

Refilling the excavated earth in layers not exceeding 23cm thickness and watering to OMC (Optimum Moisture content) and compaction of each layer to 95% of proctor Density through deployment of appropriate compaction equipment (8-10T power roller) vibratory power roller of short width ( 0.90m width drum) power roller or vibratory power roller/fuel operated or electrically operated, vibratory plate compactors, ensuring compaction of designed bund section including side slopes etc., complete as directed by the Engineer in charge of works and as per the technical specifications.

Supply of 900mm dia NP3 class RCC Pipe Confirming to IS 458/2003 including Cost of Pipes on Finished Work including all other incidental charges, testing charges including unloding, transporting and delivery in good condition at work Site etc., complete, as directed by the Departmental officers as per standard specifications.

Drilling holes in hard granite stone 32mm dia etc. complete complying with standard specification and as directed by the departmental officers.

Grouting the holes of 50mm dia with CM 1:2 w/c ratio of 0.33 in the existing weir/anicut body wall provided at a spacing of 70cm c/c in a staggered manner in the vertical surface for fixing the anchor rod of 16mm dia. RTS rod of 1m long in such position that 60cm length embedded into the masonry wall at a down ward inclination of 5 degree with horizontal and 40cm length projected and bend outside the wall including clearing the drilled hole, fixing the rod and other incidental charges etc., complete complying with standard specification.

GST at 18%

Selvamayandi