O and M 2024 2025

Amount

Earth work excavation in all classes of Soils and Sub soils and to full depth as may be directed except in rock requiring blasting inclusive of shoring shuttering , bailing out water wherever necessary and depositing the surplus earth within the compound in places shown by the Departmental officerswith an initial lead of 10mts and initial lift of 2mts and clearing and levelling the site etc, complete complying with standard specification.

Cement Concrete of mix 1 : 4 : 8 (One Cement four sand eight aggregates) using 40mm gauge hard broken including cost conveyance of all materials to site including formwork and centering labour charges, transporting and placing in position including shoring, strutting, forming protective bunds, cofferdams bailing out of water labour for mixing compacting, finishing and curing, working at depths, tools and plants and incidental charges such as sheeting, shoring and bracing and their subsequent removal etc., complete as per standard specification.

Supplying and errecting steel centering including necessary supports for plain surfaces for Reinforced Cement Concrete works such as Coloumn footing,Coloumn pedestals,plith beams, grade beams,staircase steps,etc which requires only nominal strutting using mild steel sheetsof size 90mm x60mm and 10Bg stiffened with welded mild steel angles of size 25mm x 25mm x 3mm for boarding, laid over silver oak joists of size 10cm x 6.5cm spaced at about 75cm centre to centre or at suitable intervels etc complete in all floors Complying with standard Specification without Strutting.

Providing and laying in position Standardised Concrete Mix M-20 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 contenet of 325Kg/ cum and maximum water cement ratio of 0.55 including admixture (Plasticiser / super plasticiser) in recommended proportions as per IS 9103 to accelerate, related setting of concrete, improve workability without imparing strength and durability with about (5.0cum), 7730Kg of 20mm machine crushed stone jelly and with about (3.3 cum), 5156kg of 10 - 12mm machine crushed stone jelly and with about (4.79cum) 7670 kg of Crushed Stone Sand (M- Sand), but excluding cost of reinforcement grill and fabricating charges centering and shuttering but 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 cost etc., complete complying with standard specification and as directed by the departmental officers -

Supplying and Fabrication of Steel and placing in position MS / Ribbed tor steel grills for RCC works as per design given including cost of steel and GI binding wire in Floors etc., Complete complying with standard specification in force per Kilogram.

Plain Cement Concrete 1:2:4 Mix (one Part of cement, two Part of M- Sand and four Part of aggrigate) using 20mm size ISS HBG metal machine crushed from approved quarry including cost and conveyance of all materials to site, loading and unloading charges and labour charges for mixing, laying and curing etc., complete as per TNDSS NO: 28 & VI (S2) VI (S5A) VII standard specifications as directed by Engineer incharge.

Plastering in C.M. 1 : 5 (one cement five sand)to 12 mm thick including all cost and conveyance of all materials to site including cost of cement which will be purchared locally by the contractor and conveyance of the same to the actual work site and cost form work including watering curing and all leads of good potable water and all other.

Supplying and Painting the walls with Two Coats Weather sealed Exterior emulsion Paint as instructed by the departmrntal officers including Preparation of surface curing, etc complete in all floorscomplying with standard specification. ( The Colour and shade of the paint shall be got approved by the departmental officers.)

roviding and Laying Wet Mix Mecadam using 0.396m3 of 45-22.40mm graded metal, 0.528m3 of 22.40-2.36mm graded metal and 0.396m3 of 2.36 and below size graded metal premixed with water to a densemass on a prepared subgrade / base to template in uniform 15cm Consolidated thickness and consolidation with Vibratory roller of 8 to 10 tonne capacity in stages to proper grade and camber rolling with protecting edges, etc completing with MORTH specification Clause 406.

Supplying and laying Rubberised interlocking Paver block M40 grade Providing and laying of 83mm thick high strength type conforming IS 15658-2006 of rubberized interlocking paver lock in size of minimum compressive strength of 40N/mm2 in uniform shape of approved make to be laid in flurring bone pattern with sand cushion below the uniform shap of approved non skitting surface in the top and the rate including levelling the base preparation of pavers as sub base, sand cushion 100mm thick laying out of pavement cut the pieces to fix the edge vibring the pavers,sweeping tranporting loading unloading of laying paver block as per standard specification,.

Supply and fixing of light post 4.00 M length with gradually reduce type pole 3 stages using 75mm and 50mm and 25mm size and bent up to top edge LED including fiber connection junction box internal wiring works on each pole inculuding cost and conveyance etc.., complete

Supply and installation of LED based Street Light luminaire made up of extured alluminium alloy body sealed toughened glass protector and pc side Covers. The optical and control Gear compartment should be with IP66 Tightness. Leds in Natural White (4000-4

Supply and fixing of 2 x1.5 sq mm Copper cable from pole switching point to light fittings etc., complete

Paving the floor with kota stone slab of size 600 x 600 of 18 / 20mm (un-polished) in all floors laid in of cement mortor 1:3 (One part of Cement and Three part of Plastering Sand (P- Sand)), 20mm thick and pointed with colour cement neatly including polishing with polishing stone and oxalic acid etc., so as to perfectly smooth and glossy and including hire charges for polishing machine and power consumption charges etc. The kota stone slabs and other materials to be used shall be got approved by the Executive Engineer concerned before use on work, etc., complete as per standard speicification.

Thiru.K.C.Jothinathan (BID ID -1226785)