Tihu _2025-26_11

Construction of a Single Cell Box Culvert on Tihu Feeder Road at Chainage 1+350 km Under Contingency Fund for the work "Construction of ROB for Replacement of Railway L/C Gate No. SK-26 at RLY KM 326/0-1 at Tihu Town in Nalbari District, Assam under Construction of ROB on 50:50 cost sharing basis".

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Dismantling of flexible pavements and disposal of dismantled materials upto a lead of 100 m, stacking serviceable and unserviceable materials separately as per Technical Specification Clause 202. 1. By Manual Means (a) Bituminous Courses

Dismantling of flexible pavements and disposal of dismantled materials upto a lead of 100 m, stacking serviceable and unserviceable materials separately as per Technical Specification Clause 202. 1. By Manual Means (b) Granular Courses

Dismantling kerb stone channels by manual means and disposal of dismantled material with all lifts and upto a lead of 1000 m as per Technical Specification. Clause 202.

Construction of embankment with approved material obtained from borrow pits with a lift upto 1.5 m, transporting to site, spreading, grading to required slopeand compacting pg to meet requirement of Tables 300.1 and 300.2 with a lead upto 1000 m as per Technical Specification Clause 301.5 (1) Private Land

Construction of subgrade and earthen shoulders with approved material obtained from borrow pits with all lifts and leads, transporting to site, spreading, grading to required slope and compacted to meet requirement of Table 300.2 with lead upto 1000 m as per Technical Specification Clause 303.1. (i) Private Land

Construction of granular sub-base by providing well graded material, spreading in uniform layers with motor grader on prepared surface, mixing by mix in place method with rotavator at OMC, and compacting with smooth wheel roller to achieve the desired density, complete as per Technical Specification Clause 401. (i) For Grading I Material

Construction of granular sub-base by providing well graded material, spreading in uniform layers with motor grader on prepared surface, mixing by mix in place method with rotavator at OMC, and compacting with smooth wheel roller to achieve the desired density, complete as per Technical Specification Clause 401. (ii) For Grading II Material

Providing, laying, spreading and compacting graded stone aggregate to wet mix macadam specification including premixing the material with water at OMC in mechanical mixer (Pug Mill), carriage of mixed material by tipper to site, laying in uniform layers in sub-base/base course on a well prepared sub-base and compacting with smooth wheel roller of 80 to 100kN weight to achieve the desired density including lighting, barricading and maintenance of diversion, etc as per Tables 400.11 & 400.12 and Technical Specification Clause 406 By Mechanical Means with 1 km lead

Prime Coat ii) Medium porosity Providing and applying primer coat with Bitumen emulsion (SS-1) on prepared surface of granular base including cleaning of road surface and spraying primer at the rate of 0.90-1.2 kg/sqm using mechanical means as per Technical Specification Clause 502.

Tack Coat Providing and applying tack coat with Bitumen emulsion (RS-1) using emulsion distributor at the rate of 0.25 to 0.30 kg per sqm on the prepared dry and hungry bituminous surface cleaned with Hydraulic broom as per Technical Specification Clause 503.

Dense Graded Bituminous Macadam (Providing and laying dense bituminous macadam with 100-120 TPH batch type HMP producing an average output of 75 tonnes per hour using crushed aggregates of specified grading, premixed with bituminous binder @ 4.0 to 4.5% by weight of total mix and filler transporting the hot miox to work site, laying with a hydrostatic paver finisher with sensor control to the reqd. grade, lavel and alignment, rolling with smooth wheeled, vibratory and tandem rollers to achieve the desired compaction as per MoSRT&H cl. no. 507. complete in all respect. (including carriage of mixed materials up to 10.0 Km initial lead from mixing plant) (Including cost of testing of materials at site and laboratory as directed by the deptt.) 1. With hydrated lime/cement as filler (refer table 500-9 of MoSRT&H specification A. With 60/70 or VG-30 grade bitumen (ii) for Grading II (19 mm nominal size)

Bituminous Concrete: Providing and laying bituminous concrete with 100-120 TPH batch type hot mix plant producing an average output of 75 tonnes per hour using crushed aggregates of specified grading, premixed with bituminous binder @ 5.4 to 5.6% of mix and filler transporting the hot mix to work site, laying with a hydrostatic paver finisher with sensor control to the reqd. grade, lavel and alignment rolling with smooth wheeled, vibratory and tandem rollers to achieve the desired compaction as per MoSRT&H cl. no.509. complete in all respect. (including carriage of mixed materials up to 10.0 Km initial lead from mixing plant) (Including cost of testing of materials at site and laboratory as directed by the deptt.) 1. With hydrated lime/cement as filler (refer table 500-9 of MoSRT&H specification) A. With 60/70 or VG-30 grade bitumen (ii) for Grading II (13 mm nominal size)

Cast in Situ Cement Concrete M 20 Kerb with Channel (Construction of cement concrete kerb with channel with top and bottom width 115 and 165 mm respectively, 250 mm high in M 20 grade PCC on M10 grade foundation 150 mm thick, kerb channel 300 mm wide, 50 mm thick in PCC M20 grade, sloped towards the kerb, kerb stone with channel laid with kerb laying machine, foundation concrete manually all complete as per clause 408.) A. Using Concrete Mixer

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 and conforming to the MoSrt&H specifications

Painting two coats including primer coat after filling the surface with synthetic enamel paint in all shades on new, plastered/concrete surfaces as per drawing and Technical Specification Clause 1701

Earth work in excavation of foundation of structure as per drawing and technical specification Clause 1104 including setting out, construction of shoring and bracing, removal of stumps and other deleterious matter, dressing of sides and bottom and backfilling with approved material.

Providing concrete for plain/reinforced concrete in open foundation complete as per drawings and technical specifications Clause 802,803,1202 & 1203. (A) With crush stone I) P.C.C. grade M10 (ii) Nominal mix 1:3:6

Plain/reinforced cement concrete in Sub-structure complete as per drawings and technical specifications Clause 802,804,805,806,807 & 1204. (A) With crushed stone II) P.C.C. Grade M20 (i) Nominal mix (1:2.4)

Plain/reinforced cement concrete in Sub-structure complete as per drawings and technical specifications Clause 802,804,805,806,807 & 1204. (A) With crushed stone IV) R.C.C. Grade M25 for height upto 5.00 m

Providing and laying reinforcement cement concrete in super-structure as per drawings and technical specifications Clause 800,1205.4 & 1205.5. (A) With crush stone IV) R.C.C. grade M25 For height upto 5.00 m.

Supplying, fitting and placing TMT (Fe-500 D) reinforcement bar. (From Primary Producer: TATA/SAIL/Esser Steel/ Jindal steel/Shyam steel/RINL) in superstructure complete as per drawing and technical specifications Clauses 1002, 1010 and 1202

Construction of R.C.C. railing of M-25 grade in cast in situ with 20mm nominal size aggregate, true to line and grade, tolerance of vertical railing post not to exceed 1 in 500, centre-to-centre spacing between vertical postnot to exceed 2000mm as per drawing and technical specification Claused 800,900 and 1208.3.

Providing and laying cement concrete wearing coat M-30 grade including reinforcement complete as per drawing and technical specification Claused 800and 1206.3. (A) With crush stone

Providing and laying boulder apron for bed protection with stone boulder of minimum size and weight as per Table 1300.1, no fragment weighting less than 25 kg laid dry complete as per drawing and technical specification Claused 1301