Permanent Restoration and Rehabilitation of Keelapanagadi Tank Surplus Channel with in the Madurai Corporation limit in Madurai District

Amount

Dismantling clearing away and carefully stacking materials useful for reuse for any thickness of walls of Brick / Stone masonry in cement mortar walls under 3 m high as directed by the departmental officers.

Earthwork excavation for open excavation with an 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 & hard gravelly soil etc., complete complying with standard specification and as directed by the departmental officer.

Earthwork excavation for foundation with an 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 & hard gravelly soil 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.

Supplying and filling with M. sand of each layer not more than 15 cm thick including consolidation etc complete as directed by the Engineer in charge of works and as per the technical specifications etc complete as per specification

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 plain Cement concrete of grade M15using 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 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 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.(Without Vibrator).

Providing and placing in position of Plain Cement Concrete of grade M 20 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 20N/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, 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

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 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 complete as directed by the Engineer in charge of works and as per the technical specifications.

Below 1.50 m to Above 1.00 m

Above 1.00 m to 4.50 m

Providing and placing in position of Plain 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, Vibrating, 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

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.

Without strutting

With strutting

Supplying, fabricating and placing in position of RTS or MS reinforcement for all reinforced cement concrete works including cost of steel rods of all sizes including binding wires and labour charges for decoiling, cutting, bending and tying the grills in position etc., complete complying with standard specification and as directed by the departmental officers.

Providing construction, contraction and lift joints in masonry, concrete including curing jointing and placing mastic pad of 20mm thick with mastic filling as specified in the drawings etc., complete complying with standard specification and as directed by the departmental officers.

Providing and fixing weep holes of 110mm dia PVC pipe to a required length for protection wall, abutment and wing wall including cost of all materials to work site including labour charge for 90cm spherical back fill arrangements with 10mm to 80mm dia size hard broken granite stone charges of the periphery and labour charges for fixing etc complete to drain the back fill ( Working pressure 4Kg/cm2) etc., complete complying with standard specification and as directed by the departmental officers.

Supplying demarcation R.C.C. pre cast posts in Cement concrete of grade M20 with well graded aggregates and the nominal maximum size of coarse aggregate of size 20 mm of size 0.15M x 0.15M x 1.20 M and fixing the post 40 Cm depth below ground level, the post includes using 4 numbers of 10 mm RTS main rod to a length of 1.325 M, using 8 mm MS 10 numbers as strips with steel centering and painting the post with enamel paint to a height of 0.80 M around the post etc. complete and conveying the post to the site of demarcation boundary such as tank bund and foreshore including earth work excavation for foundation in HSC having the base plain cement concrete of 10 cm of gradeM7.5 concrete using hard blue granite broken stone of graded metal 1/3 Part of 40mm & 2/3 Part of 20 mm size, and the post embedded by using Cement concrete of grade M20 with well graded aggregates and the nominal maximum size of coarse aggregate of 20 mm etc, complete as directed by the Engineer in charge of works and as per the technical specifications

Earth work deploying earth moving machineries for desilting channel and forming bund on either side depositing the earth on banks including jungle clearance etc., complete as directed by the Departmental officers complying with standard specification. Having width up to 3m

GST 18 % in Figures

G ILANGUMARAN