Tender For Rehabilitation Of Karumbur Tank In Chengalpattu Taluk Of Chengalpattu District.; 1 Clearing scrub jungle etc, complete complying with standard specifications and as directed by the departmental officers 2 Dismantling, clearing away and carefully stacking materials useful for re-use for any thickness of plain cement concrete etc., complete complying with standard specifications and as directed by the departmental officers 3 Dismantling, clearing away and carefully stacking material and without disturbing nearly structure useful for reuse for any thickness of walls under 3 (Three) meter high etc, complete as directed by the Engineer in charge of works and as per the technical specifications [Specifications 4.6.G] Plain cement concrete 4 Dismantling, clearing away and carefully stacking material and without disturb near by structure useful for reuse for any thickness of cut stone / RCC slabs under 3 (Three) metres high etc, complete as directed by the Engineer in charge of works and as per the technical specifications [ specification 4.6.G] 5 Earth workin all soils except hard rock requiring blasting and conveying for formation of bund with lead of 100m deploying earth moving machinery and tippers including benching, formation of bunds, breaking clods, sectioning, watering with power roller and consolidation etc., complete complying with standard specifications and as directed by the Departmental Officers. 6 Earth work excavation for foundation in all soils and sub soils and to full depth as may be directed by the departmental officers except hard rock requiring blasting including shoring, strutting and bailing out water wherever necessary and refilling the sides of foundation with excavated soil in layers not exceeding 15cm thick, well rammed consolidated and depositing including all initial lead and initial lift etc., complete complying with standard specifications and as directed by the departmental officers. 7 Earthwork open well execavation complying with relevant clases of T.N.D.S.S.well sinkingand with lead 10 metre in sand,silt or orther loose soil,wet sand or silt not undeer water,light black cotton soil,sandy ioam and ordinary soil -Frist depth of 2metre. 8 Earth work deploying earth moving machinery for desilting channel of width 3m to 10m and forming bund on either side and depositing the earth on banks including jungle clarance etc., complete complying with standard specifications and as directed by the departmental officers. 9 Providing and placing in position of plain cement concrete M 15 grade using M.sand graded hard blue granite broken stone jelly of 60% of 40 mm size and 40% of 20 mm size mixing with mixer machine and laying in layers including the cost of bailing/pumping wherever necessary laying the concrete in layers of not exceeding 15 cm thick,compacting,consolidationbyusingvibrators,finishing,watering,curingetc.completecomplyingwith standard specifications and as directed by the departmental officers 10 Supplying and erecting centering for vertical plain / RCC concrete walls of supply channel, retaining wall etc for following height with necessary supports , all cross bracing with mild steel size of 90 cm x 60 cm and gauge BG 10 stiffened with welded mild steel sheet angles of size 25 mm x 25 mm x 3mm for bearing laid silver oak / country wood joist of size 7.50 cm x 5.0 cm spaced @ about 90 cm C/C and supported by casurina props of 10 cm to 13 cm spaced @ 75 cm C/C , etc., complete complying with standard specifications and as directed by the departmental officers. (Vertical Centering) 11 0 to 0.90 m 12 90 to 1.80 m 13 1.80 m to 2.70 m (or) 3 m 14 3 m to 4 m 15 Supplying and erecting centring for vertical plain / RCC concrete walls of supply channel, retaining wall etc specified height with necessary supports, all cross bracing with mild steel size of 90 cm x 60 cm and gauge BG 10 stiffened with welded mild steel sheet angles of size 25 mm x 25 mm x 3 mm for bearing laid silver Oak / Country wood joist of size 7.50 cm x 5.0 cm spaced @ about 90 cm C / C and supported by Casurina props of 10 cm to 13 cm spaced @ 75 cm C / C, etc., complete complying with standard specifications and as directed by the departmental officers (Curved Centering) 16 Supplying and erecting centering for sides and soffits and strutting upto 3.0 m height for plane surfaces such as RCC works etc, with all cross bracing with mild steel size of 90 cm x 60 cm and gauge BG 10 stiffened with welded mild steel sheet angles of size 25 mm x 25 mm x 3 mm for bearing laid silver Oak / Country wood joist of size 10 cm x 6.5 cm spaced @ about 90 cm C / C and supported by Casurina props of 10 cm to 13 cm spaced @ 75 cm C / C, and removing the same without any damages etc., complete complying with standard specifications and as directed by the departmental officers. (Horizontal centering) 17 Supplying and laying of ready mix for M 15 grade of concrete having charaterstic strength not less than specified in the IS 456 - 2000 using SulphateResistantcementwithminimumcementcontentof240Kg/cumconfirmingtoIS8112.Coarseaggregateshavingaspecific gravity of 2.60 using 20 mm& down graded hard blue granite broken stone jelly and fine aggregate without flyash as per IS 383 - 1970 ( 2007 ) with suitable water cement ratio not less than 0.45 and not exceeding 0.50 of water quality confirming to IS 456 - 2000 including use of plasticizer of approved make & dosage of required grade at all locations and levels with specified high workability as per IS 1199 - 1959 ( 2004 ). The initial & final setting time confirming IS 12269 - 1987 ( 2004 ) with maximum temperature of concrete at the time of placing should not exceed 32 0 C. The admixtures affecting the quality and strength of the concrete should not be used and should confirm IS 9103 - 1979 [ usualadmixture-Airentraining &waterreducing].Iincludingthecostofhirechargesforpumpandpumpingchargestotherequired locations & levels as specified by the Engineer - in - charge,. laying, compacting, consolidation by using vibrators, finishing, watering, curing, testing chargesas per IS 456 - 2000, 4031 - ( Part 3 & 6 ) / 1988 ( 2005 ) & ( Part 2 ) / 1999 ( 2004 ) and 516 / 1959 ( 2004 ), 4926 - 1976 ( 1990 ), mix design details to be got approved before commencement of the work adopting pour card system and other OK cards. Excluding the cost of form works, centering and shuttering placed in position etc, complete complying with standard specifications and as directed by the departmental officers. (PCC Work) 18 Supplying and laying of ready mix for M25 grade of concrete having charaterstic strength not less than specified in the IS 456 - 2000 using Ordinary portland cement with minimum cement content of 366 Kg / cum confirming to IS 8112. Coarse aggregates having a specific gravity of 2.60 using 20 mm down graded hard blue granite broken stone jelly and fine aggregate with flyash as per IS 383 - 1970 ( 2007 ) with suitable water cement ratio not less than 0.45 and not exceeding 0.50 of water quality confirming to IS 456 - 2000 including use of plasticizer of approved make & dosage of required grade at all locations and levels with specified high workability as per IS 1199 - 1959 ( 2004 ). The initial & final setting time confirming IS 12269 - 1987 ( 2004 ) with maximum temperature of concrete at the time of placing should not exceed 32 0 C. The admixtures affecting the quality and strength of the concrete should not be used and should confirm IS 9103 - 1979 [ usual admixture - Air entraining& water reducing ]. Iincluding the cost of hire charges for pump and pumping charges to the required locations & levels as specified by the Engineer - in - charge,. laying, compacting, consolidation by using vibrators, finishing, watering, curing, testing chargesas per IS 456 - 2000, 4031 - ( Part 3 & 6 ) / 1988 ( 2005 ) & ( Part 2 ) / 1999 ( 2004 ) and 516 / 1959 ( 2004 ), 4926 - 1976 ( 1990 ), mix design details to be got approved before commencement of the work adopting pour card system and other OK cards. Excluding the cost of form works, centering and shuttering placed in position etc, complete complying with standard specifications and as directed by the departmental officers. (PCC Work) 19 aracteristic strength not less than specified in the IS:456-2000 using ordinary Portland cement with minimum cement content of 300 kg / Cu.m confirming to IS 8112. Coarse aggregates having a specific gravity of 2.60 using 20 mm downgraded hard blue granite broken stone jelly and fine aggregates without fly ash as per IS 383 - 1970(2007) with suitable water cement ratio not less than 0.45 and not exceeding 0.50 of water quality confirming to IS 456 - 2000 including use of plasticizer of approved make & dosage of required grade at all locations and levels with specified high workability as per IS 1199–1959 (2004). The initial & final setting time confirming IS 12269–1987 (2004) with maximum temperature of concrete at the timeofplacingshouldnotexceed32oc.Theadmixturesaffectingthequalityandstrengthofthe concrete should not be used and should confirm IS 9103 – 1979 [ usual admixture – Air entraining & waterreducing].Includingthecostofhirechargesforpump&pumpingchargestotherequired locationandlevelsasspecifiedbytheEngineer–in–charge,Curing,testing,laying,compacting, consolidation by using vibrators, finishing, watering, testing charges as per IS 456–2000, 4031–(Part 3 & 6)/1988(2005) & (Part2)/1999(2004) and 516/1959(2004), 4926 – 1976(1990), mix design details to be got and approved before commencement of the work adopting pour card system and other OK cards.Excludingthecostofformworks,centeringandshutteringandcostofreinforcementgrills placedinthepositionetc,completecomplyingwithstandardspecificationsandasdirectedby the departmental officers (RCC Works) 20 Supplying and laying of ready mix for M 30 grade of concrete having charaterstic strength not lessthanspecifiedintheIS456-2000usingOrdinaryportlandcementwithminimum cement content of 300 Kg / cum confirming to IS 8112. Coarse aggregates having a specific gravityof2.60using20mmdowngradedhardbluegranitebrokenstonejellyandfine aggregate without flyash as per IS 383 - 1970 ( 2007 ) with suitable water cement ratio not less than 0.45 and not exceeding 0.50 of water quality confirming to IS 456 - 2000 including use of plasticizer of approved make & dosage of required grade at all locations and levels with specified high workability as per IS 1199 - 1959 ( 2004 ). The initial & final setting time confirming IS 12269 - 1987 ( 2004 ) with maximum temperature ofconcrete at thetime of placingshouldnotexceed320C.Theadmixturesaffectingthequalityandstrengthofthe concreteshouldnotbeusedandshouldconfirmIS9103-1979[usualadmixture-Air entraining& water reducing ]. Iincluding the cost ofhire charges for pump and pumping charges to the required locations & levels as specified by the Engineer - in - charge,. laying, compacting, consolidation by using vibrators, finishing, watering, curing, testing chargesas per IS 456 - 2000, 4031 - ( Part 3 & 6 ) / 1988 ( 2005 ) & ( Part 2 ) / 1999 ( 2004 ) and 516 / 1959(2004),4926-1976(1990),mixdesigndetailstobegotapprovedbefore commencement of the work adopting pour card system and other OK cards. Excluding the cost of form works, centering and shuttering placed in position etc, complete complying with standard specifications and as directed by the departmental officers. (PCC work) 21 Supplying and fixing the Cement concrete block of size 300 mm X 250 mm X 200 mm of M15 using M sand andhardbluegranitebrokenstonejellyof20mmsizemixingwithmixermachineincludingthecostand conveyance of all materialstoworksite,labourchargesforfixingthe sameinpositionandincludingall otherincidental charges, compacting, consolidation, finishing, watering, curingetc complete complying with standard specifications and as directed by the departmental officers 22 Supplying, fabricating and placing in position of Mild Steel or Ribbed Tor Steel for allRCC works as per design & drawing given including cost of steel, binding wire and labour charges for cutting, bending, laying in position andtyingwithbindingwire,etc.completecomplyingwithstandardspecificationsandasdirectedbythe departmental officers 23 Refixing of available old cut stone and set in Cement mortar 1 : 4 ( One cement and four parts of sand ) including all incidental charges such as finishing, curing, etc complete complying with standard specifications and as directed by the departmental officers 24 Refilling with excvationsoil (other than sand) complying with standarad specification for filling in foundation and basement as directed by the departmental officers 25 Providing and fixing best country wooden plug with 50mm dia MS screw gearing rod 5m height support on 2 Nos. ISMB 125 RJ Joists of 1.80m length and guide beam 1 No. of the same size resting in turn of MS base plate of 50 X 30 mm size 6 mm thick with cast iron hexagonal head set and a collar plate of 300 X 300 X 6 mm thick fixed with necessary bolts and nuts and other fixtureetc, complete as directed by the Engineer in charge of works and as per the technical specifications 26 Gravel packing 15cm thick for cement concrete block revetment or apron including stacking watering and consolidation etc, complete as directed by the Engineer in charge of works and as per the technical specifications.
