|
Tender Result Brief :
|
Modernisation of left main canal of marudhanadhi reservoir in ayyampalayam village of authoor taluk in dindigul district. (leftout components), modernisation of left main canal of marudhanadhi reservoir in ayyampalayam village of authoor taluk in dindigul district. (leftout components), earthwork excavating and depositing on bank with initial lead of 10m and initial lift of 2 m in hard stiff clay, stiff black cotton, hard red earth, shales, murram, gravel, stoney earth and earth mixed with small sized boulders and refilling the sides of foundation with excavated earth in layers of 15cm thick well rammed and consolidated etc. complete complying with standard specifications and drawings as directed. (for foundation), plastering with cement mortar 1:3 (one cement and three plastering sand) 20mm thick mixed with water proofing compound conforming to bis at 2% by weight of cement used including mortar plasticizer at 200ml per 50kg of cement used, finsihing, curing, etc., complete in all floors complying with standard specification and as directed by the departmental officers, gravel backing to cast in situ side slopes lining including the cost of gravel at site of work, mixing with water stiff plastic balls and laying and finishing etc., complete complying with standard specification. (canal bed), rough stone dry packing using old rough stones for apron and revetment including stacking charges for premeasurement and finishing etc complying with standard specification complete, supplying and erecting water tight steel centering for sides and soffits including necessary supports and shuttering including strutting for all r.c.c. works etc up to 3.29 m height with all cross bracings using mild steel bg 10 sheets of size 90cm x 60cm gauge stiffened with welded mild steel angles of size 25x25x3mm for boarding laid over silver oak (country wood) joist of size 10cm x 6.5cm spaced at about 90cm centre to centre and suitably supported by casuarina props of 10cm to 13cm dia spaced at 75cm centre to centre, including cost of materials etc., complete complying with standard specification and as directed by the departmental officers. the payment for centering shall be given after the concrete is laid and the retrieved materials should be taken back by the contractor, supplying and fixing pvc water bar 150mm wide with single bulb including all labour charges,conveyance charges for fixing etc., complete complying with standard specification and as directed by the departmental officers. (25m intervel), providing and placing in position of plain cement concrete of grade m10 using hard well graded aggregates with the nominal maximum size of coarse aggregate of 40mm weigh batching the ingredients and mixing in approved mixers/batching plant (to produce concrete of the specified characteristic strength of 10 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; 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 complete as directed by the engineer in charge of works and as per the technical specifications, providing and placing in position of cement concrete of grade m 25 using hard well graded aggregates with the nominal maximum size of coarse aggregate of 20mm; weigh batching the ingredients and mixing in approved mixers/batching plant (to produce concrete of the specified characteristic strength of 25n/mm2 at 28days) including dewatering of placement site by bailing/pumping and by diverting wherever necessary laying the concrete in layers and in bays, compacting and finishing, adequate water curing so as to attain the profile and strength specified in the approved drawing and specifications as per the direction of the engineer complete in all respect but excluding the cost and placing of reinforced grill in position etc, complete as directed by the engineer in charge of works and as per the technical specifications, upto 1.50 m below ground level to 1.00 m above ground level, trimming the bed and side slope of the bank in all soils except hard rock up to a thickness 7.5 cm and making it ready to receive the concrete as directed by 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 20mm weigh batching the ingredients and mixing in approved mixers/batching plant (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 various thickness and in bays; compacting and finishing the surface with all leads and lifts; watering curing complete so as to attain the profile and strength as directed by the engineer in charge of works and as per the technical specifications. (without vibrating), providing and laying in position, standardised reinforced concrete mix m-20 grade in accordance with is:456-2000 using 20mm and down graded hard granite stone jelly for all rcc items of works with minimum cement content of 325 kg/m3 and maximum water cement ratio of 0.55, of 20mm machine curshed stone jelly and with about (3.3 cu.m) 5156kg.of 10-12mm machine crushed stone jelly and with about (4.79 cu.m) 7670kg. of m sand, but excluding cost of reinforement grill and fabricating charges, centering and shuttering and also including laying, vibrating with mechanical vibrators, finishing, curing, etc. complete complying with standard specification and as directed by the departmental officers. the coarse and fine aggregates to be used should comply with th requirement of is standards, 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 (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 various thickness and in bays; compacting and finishing the surface with all leads and lifts; watering curing complete so as to attain the profile and strength as directed by the engineer in charge of works and as per the technical specifications, providing and laying in position, standardised concrete mix m-25 grade by insitu machine mix concrete adopting weighing batch method in accordance with is:456-2000 using 20mm and down graded hard broken granite stone jelly for all rcc items of works with minimum cement content of 350 kglm3 and maximum water cement ratio of 0.50, including admixture (plasticiser / superplasticiser) in recommended proportions as per is:9103 to accelerate, retard setting of concrete, improve workability without impairing strength and durability with about (5.0 cu.m) 7730 kg. of 20mm machine crushed stone jelly and with about (3.3 cu.m) 5156 kg. of 10-12mm machine crushed stone jelly and with about (4.79 cu.m’) 7670 kg. of crushed stone sand, but excluding cost of reinforcement grill and fabricating charges, centering and shuttering and also including laying, vibrating with mechanical vibrators, finishing, curing, etc. and providing fixtures like fan clamps in the rcc floor/ roof slabs wherever necessary without claiming extra, etc., complete complying with standard specification and as directed by the departmental officers. the coarse and fine aggregates to be used should comply with the requirements of is standards. (no separate payment will be made by the department for the excess usage of materials), providing and placing in position of plain cement concrete of grade m15 using hard well g
|
