Rehabilitation of cross masonry structures from mile 16.5.000 to mile 28.7.000 of Amaravathi Main canal in Madathukulam taluk of Tirupur District.

Amount

Clearing the scrub Jungle and destroying the same effectively complete complying with standard specification and as directed by the departmental officers

Dismantling, clearing away and carefully stacking of materials useful for reuse for Plain Cement Concrete complete complying with standard specifications and as directed by the departmental officers

Dismantling, clearing away and carefully stacking of materials useful for reuse for any thickness of walls, brick/stone masonry in cement mortar walls under 3m height complete complying with standard specifications and as directed by the departmental officers.

Earth work excavation and depositing on bank with initial lead of 10m and initial llift of 2m in Sand , silt or other loose soil,wet sand or silt not under water,light black cotton soil,sandy loam and ordinary soil incluing excavated earth (SS20 B) complete complying with standard specifications and as directed by the departmental officers

Extra for every additional 1 m lift or part thereof over the initial lift of 2m (1 Lift) etc,complete and as directed by the departmental officers.

Earth work excavation and depositing on bank with initial lead of 10m and initial llift of 2m in and,silt or other loose soil , wet sand or silt not under water,light black cotton soil,sandy loam and ordinar soil incluing excavated earth (SS20 B),Hard stiff clay,stiff black cotton,hard red earth,shales,murram,gravel,stoney earth and earth mixed with small size boulders(SS20B) including refilling.,the sides with excavated earth, shoring,stutting and bailing out water wherver neccessary,well rammed,consloidated and depositing the surplus earth in places as shown by the departmental officers and clearing,levelling etc., complete complying with standard specification and as directed by the departmental officers(Open Excavation)

Earth work in all soils except hard rock requiring blasting and conveying earth with lead of 0 to 100 m deploying earth moving machinary and tippers including benching,formation of bund,breaking clods,sectioning chargesetc,complete complying with standard specifications and as directed by the departmental officers for filling on the existing bund top .(5Km lead at local)

Providing and laying Plain Cement concrete of M10 grade (Design Mix) using 40mm HBGS jelly (well graded) confirming to IS specified grading (to produce concrete of the specified grading and characteristic strength of 10N/mm2 at 28 days) and mixing the ingredients by mixer machine including dewatering by bailing/pumping wherever necessary laying the concrete in layers and in bays with all leads and lifts,compacting and finishing the surface, watering, curing etc.,complete complying with standard specifications and as directed by the departmental officers.

Supplying and erecting centering for sides and soffits including necessary supports and strutting upto 3.29m height for vertical/sloped surface as detailed with all cross bracings using mild steel sheets 10 gauge thick of size 90cm x 60cm stiffened with welded mild steel angle of size (25x25x3)mm laid over silver oak joists of size 10x6.5cm spaced about 90cm c/c and supported by casurina props of 10 cm to 13cm dia spaced at 75 cm c/c and removing the centering and shuttering after specified period without damaging the concrete laid.Scaffolding and centering charges for the structural components is inluding the cost and converyance of all material to the site including all labour charges and incidental charges etc., complete complying with standard specification and as directed by the departmental officers

Providing and laying in position of Standardised Reinforced Cement Concrete Mix M-25 Grade 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 kg/m3 and maximum water cement ratio of 0.50, including admixture ( plasticiser / super plasticiser) 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) 5156kg. of 10-12mm machine crushed stone jelly and with about (4.79 cu.m) 7670kg of M.sand, but excluding cost of reinforcement 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 the requirement of IS standards.( No separate payment will be made by the Department for the excess usage of materials)

Supplying and fabrication of steel required for all RCC works involved in the schedule including cost of steel , cost of fabrication, labour charges for cleaning the rods straightening, cutting, bending, tying grills including over lapping to the required length wherever necessary and placing reinforcement in position as specified in the drawing including cost of binding wire provision for space bars, cover blocks and all other incidental charges etc., complete complying with standard specification and as directed by the departmental officers

Providing and Laying in position, Plain Cement Concrete of M 15 grade (Design Mix) with well graded aggregates and the maximum nominal size of HBGS jelly of 40mm and down graded confirming to IS specified grading and mixing by mixer machine ( to produce concrete of the specified grading and characteristic strength of 15N/mm2 at 28 days) including dewatering by bailing/ pumping wherever necessary laying the concrete in layers and in bays with all leads and lifts, vibrating, compacting, and finishing the surface, watering, curing, for various depth and height below and above ground level so as to attain the profile and strength specified in the drawings. complete complying with standard specifications and as directed by the departmental officers.

Random Rubble masonry in cement mortar 1:4 (one cement and four Msand) using old rough stones and new bond stones including simultaneous pointing the exposed surfaces with same mortar and all incidental charges such as bailing out of water, curing, finishing complete complying with standard specifications and as directed by the departmental officers.

Random Rubble Masonry in Cement Morter 1:4 (One part of Cement and four part of M.sand) using New hard granite rough stones and bond stones and including simultaneous pointing the exposed surfaces with same mortar and all incidental charges such as bailing out water curing finishing complying with standard specification and as directed by the deparmental officers.

Flush pointing over the existing Random rubble masonry in cement mortar 1:3 (one cement and three P sand ) as per standard specification including racking out the joints to full depth of slab/stone masonry , clearing the joints with wire brush and water etc..,Complete complying with standard specification and as directed by the departmental offficers.

Pointing the old PCC slab of size 0.60 x 0.45 x 0.05 m with CM 1:2 (one cement and two P sand) as per standard specification including racking out of joints to full depth of slab clearing the joints with wire brush and water, using water proof compound at 2% wt of cement etc.,complete complying with standard specification and as directed by the departmental officers

Removing and refixing of slipped PCC slabs of size 60cmx45cmx5cm by stacking them carefully at the site of work as directed with all leads and lifts, trimming side slopes and berm of the canal in all soils except rock including levelling to proper slopes and gradients watering consolidating and making the surface suitable to receive the cement mortar bedding of 6 mm thick in cement mortar 1:3 (One cement and three M sand) and 15mm thick in cement mortar 1:5 (One cement and five M sand) directly on the subgrade duly dressed and compacted allowing 24 hours for water curing of this bed layer and then laying PCC slabs with 6mm thick cement mortar 1:3 (One cement and three M sand) and fixing the PCC in position inside slope of the canal with templates and pointing with cement mortar 1:3 (One cement and three M sand) with water proofing compound by 2% weight of cement used to full thickness of slab with same mortar curing etc., complete including labour charges for forming joints in lining, fixing of the no fine cement concrete panels,clearing,sealing the joints with bituminous pad and sealing compound after applying necessary primer etc., complete complying with standard specification and as directed by the departmental officers

Preparation of sub grade (as per technical specification) duly moistered and duly removing the surface irregularities including dewatering and laying plain cement concrete lining 75mm thick of M15 grade (design mix) concrete on canal bed and sides using hard coarse aggregate with nominal maximum size of 20mm and down graded to IS specified grading to have well graded aggregate along with Air Entraining Agent (200ml per bag of cement) and mixing these in mixer machine (concrete mix to yield 28days characteristic compressive strength of 15N/mm2) placement of concrete over the subgrade on canal bed and sides manually including consolidation of concrete, smooth finishing of concrete surface, providing transverse contraction joint grooves as per technical specifications and water curing of the lining etc.The subgrade shall be well prepared, dressed and rolled to true level and specified section to form a firm compacted base for the lining complete complying with standard specification and as directed by the departmental officers (For Canal Lining works)

Fabricating, Supplying and erection of Screw gearing steel shutters of size above upto 1.00 m width consist shutters of skin plate made out of 8mm thick mild steel plate and horizontally stiffened with 65x65x6mm mild steel Angle at an interval not more than 0.50m and vertical stiffeners made out of same section at an interval not more than 0.60m and provided with 8mm mild steel gusset plate of required size on both sides fastened with rust free bolts and nuts etc. Conveying the fabricated shutter by using lorries including loading, unloading and leading the shutter to the vent. Dismantling the eroded shutter and shuttering arrangements by using necessary gas cutting equipment. Erecting the new shutter and the shuttering arrangements in the vent in proper position by using necessary hoisting equipment. The shutter shall be painted with two coats of Anticorrosive black paint over one coat of Red Oxide Primer. The rate including cost of materials consumables, labours power charges, conveyance charges for all equipment required conveying the dismantled materials to the section stores, cost of petty civil works, trial operation of shutter and warranty for 5 years etc.,complete.

Fabricating, supplying and fixing of Shutter Groove Angle made up of 65x65x6mm Mild Steel angle for required height including welding hold fast of size 25x25x6mm Mild steel angle 2 Nos on both sides and conveying and leading the groove angle to the vents. Fixing the angle to the grooves in proper alignment including dismantling the existing damaged groove angles, conveying and stacking at section store. The groove angle should be painted with two coats of AC black paint over one coat of red oxide primer. The rate including cost of materials, consumables, labours charges for all fabricating and hoisting equipments, conveyance, petty civil works and warranty for 5 years etc., complete, etc.,

Fabricating, Supplying and fixing of Top Beam made up of 150x75mm (ISMB 150) duly drilled to suit the Head Set Assembly with required bed bolt made out of 25mm mild steel round rod duly threaded with suitable anchorage arrangements to a height of 0.60m with necessary Fish plate made out of 12mm mild steel plate of size 0.30 x 0.15m 2Nos with required holes.Conveying and leading the top beam arrangements to the work site. Fixing the top beam arrangements at the top of the vent in correct position including dismantling the existing eroded top beam, conveying and stacking and the section stores. The top beam should be painted with two coats of AC black paint over one coat of Red Oxide primer. The Rate including cost of materials, labours, charges for all fabricating and hoisting equipments, cost of petty civil works conveyance charges for labours and materials and warranty for 5 years etc.., complete.

CHITRAHEM CONSTRUCTION COMPANY (BID ID -1459503)