Improvements to the Vaalavanthankottai Tank in Vaalavanthankottai Village of Thiruverumbur Taluk of Trichy District.

Clearing scrub jungle and destroying them effectively as directed by the departmental officers and as per standard specification.

Dismantling, clearing away and carefully stacking material and without disturbing nearby structure useful for reuse for any thickness of brick or stone masonry in Cement Mortar walls under 3 (Three) meters high etc, complete as directed by the Engineer in charge of works and as per the technical specifications.

Dismantling, clearing away and carefully stacking material and without disturbing nearby structure useful for reuse for any thickness of RCC in Cement Mortar walls under 3 (Three) meters high etc, complete as directed by the Engineer in charge of works and as per the technical specifications.

Earth work excavating and depositing on bank with initial lead of 10m & 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 SS20B (HARD SOIL)

Earth work excavating and depositing on bank with initial lead of 10m and initial lift of 2m and for required additional lift and bailing out of water in sand, silt other loose soil wet sand or silt not under water light black cotton soil sandy loam of ordinary soil including Sand and Silt Under Water (SS20B) (Open Excavation)- For Foundation

Supplying and filling the M.Sand including the cost and conveyance of materials, watering, compacting etc. complete complying with standard specifications and as directed by the Engineer in Charge of the works.

Providing and placing Plain Cement Concrete M 10 grade using crusher broken hard granite course aggregate (well graded) of nominal maximum size of 40 mm and down graded to I.S specified grade and mixing the ingredients in approved mixer including dewatering of the placement site by baling / pumping and diverting wherever necessary placing in layers and vibrating, water curing, finishing the surface with all leads and lifts etc., complete in all respects so as to attain the profile and strengh specified in the approved drawing and specifications, and including the cost component of providing rigid and smooth centering and shuttering and scaffolding wherever necessary for various depth below and heights above ground level as per the direction of the engineer in charge of works and complying with technical specifications.

Providing and placing Plain Cement concrete M15 grade using crusher broken hard granite course aggregate (well graded) of nominal maximum size of 20 mm to IS specified grading ( to achieve the specified characteristic strength of 15N/mm2 in 28 days) and mixing the ingredients in approved mixer placing in layers and vibrating , water curing , finishing the surface with all leads and lifts etc complete in all respects so as to attain the profile strength specified in the approved drawing and specifications etc., complete complying with standard specifications and as directed by the Departmental officers.

Below Ground Level

Above Ground Level

Providing and placing Plain Cement concrete M15 grade using crusher broken hard granite course aggregate (well graded) of nominal maximum size of 40 mm 60% and 20mm 40% to I.S specified grading to achieve the specified characteristic strength of 15N/mm2 in 28 days) and mixing the ingredients in approved mixer placing in layers and vibrating .water curing .finishing the surface with all leads and lifts etc complete in all respects so as to attain the profile strength specified in the approved drawing and specifications as per the direction of the engineer incharge of works and complying with technical specifications.

Below Ground Level

Above Ground Level

Providing and laying in position, Standardised Concrete Mix M-20 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 325 kglm3 and maximum water cement ratio of 0.55, 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)

Below Ground Level

Above Ground Level

Supplying and erecting steel centering for sides and soffits for plain surface with all cross bracings using Mild steel sheets of size 90cm x 60 cm. thickness of and B.G.10 stiffened with welded Mild steel angles of size 25 x 25 x 3mm for boarding, laid over country wood joints of size 10 cm x 6.5 cm spaced at 90 cm center to center and supported by casurina props of 10 to 13 cm dia (spaced at 75cm) center to center complying with standard specification and as directed by the departmental officers.,,

Below Ground Level - Without Strutting

Above Ground Level - With Strutting

Supplying and fabrication and placing in position of Mild steel (MS) or Ribbed Tor Steel (RTS) of grills for all RCC works including cost of steel, binding wire and labour charges for decoiling cutting, bending and tying the grills etc.., complete complying with standard specification and as directed by the departmental officers.

Providing bed protection work D/s of Weir using Jetty stone 40kg including conveyance, cost of materials and spreading charges etc., complete complying with standard specification as directed by the departmental officers.

Dewatering using 20HP diesal Engine pumped inlcuding hire charges cost of diesal Engine oil, pump operator, labour charges conveyance of pumpset and fuel to site and back loading and unloading anyother inciditial charges etc.., complete complying with standard specification and as directed by the departmental officers.

Supplying and filling 40cm thick graded metals (using 40, 20,12mm size metal) for weep hole filter media in Abutment,wings and Return wall of etc., complete complying with standard specification as directed by the departmental officers.

Supplying and fixing in position of seepage pipes of 75 mm dia PVC pipe having working pressure of 6kg/cm2 required lenghts with required fillter media (excluding the cost of fillted media) for abutment and wings including cost and conveyance of all materials to work site and labour charges for fixing etc. complete complying with standard specifications and as directed by the Departmental Engineers.

Providing cut stone roughly dressed and set in cement morter 1:3 (one cement and three sand ) including fixing in position etc complete as directed by the Engineer in charge of work complying with the standard specification

Refilling with excavated earth (other than sand) complying with the standard specification for filling in foundation and basement etc., complete complying with standard specification andas directed by thedepartmental Engineers including watering consolidation by hand roller.

Fabricating Supplying and fixing of Country wood plug made out of best quality of country wood with slot holes with necessary locking arrangements is made out of 50x8mm M.S Plate with required height and the Country wood plug may be manufactured with stand and size and shape. The rate including all cost such as cost of materials, labour transportation to site, loading, unloding and fixing the plug with correct alighnment and position and painting the plug with two coats of varnish and iron members are painted with one coats of red oxide primer and with two coats of AC black paint with all taxes and other etc.complete complying with standard specification and as directed by the Departmental Engineers.

Fabricating, supplying and fixing of 50mm dia Screw Rod made up of Mild Steel duly machined and fully threaded to suit the Head set Assembly and provided with required holes. Conveying and leading the screw rod to the worksite. Fixing the screw rod to the shutter gusset plate with required bolt and nut in proper alignment to the head set including dismantling the existing damaged screw rod, conveying and stacking at section store. The Screw rod 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, conveyance charges for labours and materials and warranty for 5 years etc.., complete complying with standard specification and as directed by the departmental officers.

Supplying and fixing of Head Set Assembly Light duty with hexagonal nut (Approximate 50 Kg) made up of cast iron including moulding, machining and the hexagonal nut threaded to suit the Screw Rod provided with thrust bearings for smooth operation. Conveying and leading the head set assembly to the work site. Fixing the head set assembly to the top beam by using required rust free bolts and nuts in proper alignment including dismantling the existing damaged Head set assembly supplied with operating key and the both 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 wooden pattern, moulding and charges for labours and materials and warranty for 5 years etc.., complete complying with standard specification and as directed by the departmental officers.

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 complying with standard specification and as directed by the departmental officers.

Earthwork in all soils except hard rock requiring blasting and conveying with in a lead of 0 -100m with additional lead of 200m by deploying earth moving machineries and tippers for formation of bund in layers of suitable thickness, depending upon type of compaction equipment deployed and not exceeding 23cm thickness, benching of slopes prior to placement of earth fill, breaking clods, formation of bund, breaking clods, sectioning extra watering to OMC and compaction of each layers to 95% of proctor density through deployment of appropriate compaction equipment (8-10 ton vibratory power roller/short width (+0.90M width drum) power roller or vibratory power roller/fuel-operated or electrical operated vibratory plate compactors ensuring compaction of designed bund section including side slopes compaction complete as per specifications etc., complete as directed by the Engineer-in-charge

Supplying and spreading gravel on the top of bund for a consolidated thickness of 150mm in two layers of 75mm thick including stacking the same for premeasurements, spreading, watering, consolidation by hand roller and well compacted etc., complete complying with standard specifications and as directed by the Departmental Engineers.

GST at 18%

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