NNT - 2025-2026-BT Road

Earth work excavation for foundation and depositing on bank with in the initial lead of 10m and a lift of 2m in hard stiff clay, stiff block cotton, hard red earth, shales, murram, gravel, stoney earth and earth mixed with small size boulders etc.,as per SS 20 A. TNDSS NO: 23 & 24 VI (S2) VI,VII 9,10 with standard specifications. (For Chokkanathapuram valayar street, Valayar to vadagudi salai-2,3)

Cement Concrete 1:5:10 (One Cement, Five crushed stone sand and Ten hard broken stone jelly) using 40 mm gauge hard broken granite stone jelly for foundation including dewatering wherever necessary and laid in layers of not more than 15 cm thick well rammed, consolidated and including curing etc. complete complying with standard specification and as directed by the departmental officers -Mixing by mechanical means

Supplying and erecting centering for sides and soffits including supports and strutting upto3.29m height for plane surfaces in all floors with all cross bracings using mild steel sheets of size 90cmx60cm and 10 gauge stiffened, welded with mild steel angles of size 25mmx25x3mm for boarding laid over silver oak (country wood) joist of size 10cmx6.5cm dia spaced about 90cm centre to centre and supported by casuarina props of 10cm to 13cm dia spaced at 75cm centre tocentre etc.complete complying with standard specification and as directed by the departmental engineers. TNBP No.30

Supply and fabrication of steel using TMT rods for all Reinforced cement concrete works including cost and conveyance of all materials and all labour charges for cutting, bending and placing the rod in position and tying up the rods with binding wire and other incidental charges etc., complete. as per standard specification SS 86 & 86A V,VI, VII (S6) 7,3

Plain Cement Concrete 1:2:4 Mix (one part cement, two part 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.

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 using 20mm and down graded hard broken 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, including admixture (plasticiser / super plasticiser) in recommended proportions as per IS:9103 to accelerate, retard setting of concrete, improve workability without inspiring strength and durability with about (5 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 ofreinforcement 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).

Construction of Granular Sub-base by providing close graded material,mixing in a machanical plant at OMC,carriage of mixed material to work site,spreading in uniform layers with motor grader on prepared surface and compacting with vibratory power roller to acheive the desired density,Complete as per clause 401.

Providing, Laying, Spreading and compacting graded stone aggregate to Wet Mix Macadam for 150mm thick specification including premixing the material with water at OMC in mechanical mix plant carriage of mixed material by tipper to site laying in uniform layers with pavers in sub base / base course on well prepared surface and compacting with vibratory roller to achieve the desired density,including all cost conveyance of materials and labour charges etc. complete as per standard specifications and as directed by departmental Engineers MORTH 406

Providing and laying Prime Coat over WBM/WMM surface using 7 Kg of Emulsion Bitumen for 10 Sq.m and cost of Emulsion Bitumen(SS-2Grade) which will be supplied and procured by the contractor himself at his own cost as per special condition appended including labour charges for preparing the surface for laying the tack coat and for applying the required quantity of bitumenius Binder as tack Coat by Bitumen sprayer including hire and fuel for all tools and plant employed etc., complete as per clause 503 of MORTH Specification . etc., complete as per standard specification

Applying Tack Coat over existing Prime coating WMM surface using 2.5 Kg of Bitumen emulsion(RS-1) per 10 Sq.m including labour charges for preparing the surface removing of binder materials and other foreign matter with wire brushes and small picks & axes sweeping with brooms on soft brushes and finally dusting with old gunny bag and/or compressed air and applying the required quantity of bitumen emulsion as tack coat manually etc., Complete complying with 503 of MORTH specifications.

Providing and laying 50 mm conslidated thick Dense Bituminuous macadam using 0.24 cum of 26.50-13.20 mm,0.25cum of 13.20-2.36mm and 0.23cum of 2.36mm and below and with 53.20kg of VG30 bitumen premixing 10 sqm including cost and conveyance of all materials to CMP site,heating the bitumen and aggregates to required temperature and mixing them in required temperature in central hot mix plant 20-30 tons capacity,conveying the mix by tipper trucks to work site,spreading the mix uniform thickness of 50mm with paver to the specified grade and cross sections and compaction by vibratory/ pneumatic roller to the required density etc., including labour for accending to pavor at sites etc., including hire charges and fuel charges for 20-30T CMP with bitumen Boiler,tipper trucks, paver finisher/9 m paver finisher,vibratory/ pneumatic rollers and all other tools and plant required including to all other incidental charges etc., complete as per specification using CMP as per clause 505 MORTH Rev-5.

Providing and laying 30mm compacted thick Bituminous Concrete using 0.13 cum of 19.00-9.50mm mm IRC size HBG metal 0.17 cum of 9.50-2.36 mm IRC size HBG metal, 0.26cum of 2.36mm and blow with 50kgs of 60/70 bitumen for premixing per 10 sq.m including cost and conveyance of all materials to CMP site heating the bitumen and aggregate to required temperature and mixing them in required temperature in central hot mix plant 20 – 30 tonnes capacity conveying the mix by tipper trucks to paver site spreading the mix in required temperature for uniform thickness of 40 mm with mechanical Paver to the specified grades and cross sections and compaction by vibratory roller to the required density etc., including labor for loading bitumen into bitumen tank and metal to feeder unit labour for attending to paver site etc., including hire charges and fuel charges for 20 – 30t CMP with bitumen boiler tipper trucks, paver finisher,vibratory rollers etc., complete as per specification using CMP clause 511 & 501 of MORTH.

Providing and laying of hot applied thermoplastic compound 2.5 mm. thick including reflectorising glass beads @ 250 gms. per sqm. area, thickness of 2.5 mm. is exclusive of surface applied glass beads as per IRC: 35. The finished surface to be level, uniform and free from streaks and holes etc. complete. (as per MORT & H specification No.803). (CE(H) Chennai Memo No.4848/BOE/138/2011-1/ dated:06.01.12)

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