MM/C/PWD/eNIT-6/2026-27

Excavation in Soil using Hydraulic Excavator CK 90 and Tippers with Disposal upto 1000 metres. Excavation for roadwork in soil with hydraulic excavator of 0.9 cum bucket capacity including cutting and loading in tippers, trimming bottom and side slopes, in accordance with requirements of lines, grades and cross sections, and transporting to the embankment location within all lifts and lead upto 1000m (Reference to MoRT&H's specification clause 301).

Plain/Reinforced cement concrete in open foundation complete all including vibrating and compacting, finishing, curing, sampling, testing etc. as per drawing and Technical Specifications (Reference to MORT&H's specifications 1500, 1700 & 2200). PCC Grade M15 (Including shuttering) N B Variety (including Shuttering).

Fine Sand Filling in Foundation Trenches with good local sand free from earth not exceeding 150 mm compacted thickness including inundating each layer by profuse water and porking and rammimg layer by layer. Quality of sand is to be approved by the Engineer-in-charge.(Reference to MORT&H's specification 304).

Granular Sub-Base with Graded Material (Table:- 400-1) B) By Mix in Place Method Construction of granular sub-base by providing graded materials such as natural sand/crushed gravel/crushed stone/combination depending upon the required grading , spreading in uniform layers with motor grader on prepared surface, mixing by mix in place method with rotavator and compacting with vibratory roller to achieve at least 98% of the maximum dry density for the material determined as per IS:2720 (Part 8), complete as per clause 401 desired density, complete as per clause 401 V) Rate per cum for grading-V Material.

Granular Sub-Base with Graded Material (Table:- 400-1) B) By Mix in Place Method Construction of granular sub-base by providing graded materials such as natural sand/crushed gravel/crushed stone/combination depending upon the required grading , spreading in uniform layers with motor grader on prepared surface, mixing by mix in place method with rotavator and compacting with vibratory roller to achieve at least 98% of the maximum dry density for the material determined as per IS:2720 (Part 8), complete as per clause 401 desired density, complete as per clause 401 iii) Rate per cum for grading-III Material

Water Bound Macadam Providing, laying, spreading and compacting stone aggregates of specific sizes to water bound macadam specification including spreading in uniform thickness, hand packing, rolling with 3 wheeled steel/ vibratory roller 8-10 tonnes in stages to proper grade and camber, applying and brooming requisite type of screening/ binding Materials to fill up the interstices of coarse aggregate, watering and compacting to the required density (Reference to MoRT&H's specification 404). (North Bengal Variety) By Manual Means Grading-1(Table 400-9) Using Screening (Table 400-10) Type-B (11.2 mm aggregate).

Water Bound Macadam Providing, laying, spreading and compacting stone aggregates of specific sizes to water bound macadam specification including spreading in uniform thickness, hand packing, rolling with 3 wheeled steel/ vibratory roller 8-10 tonnes in stages to proper grade and camber, applying and brooming requisite type of screening/ binding Materials to fill up the interstices of coarse aggregate, watering and compacting to the required density (Reference to MoRT&H's specification 404). By Manual Means Grading-I1(Table 400-9) using North Bengal Variety Materials Using Screening (Table 400-10) Type-B (11.2 mm aggregate).

Tack Coat Providing and applying tack coat with Cationic bitumen emulsion (RS1) complying with IS:8887 using emulsion pressure distributor on the prepared bituminous/granular /cement concrete pavement surface cleaned with mechanical broom and high pressure air jet (Reference to MORT&H's specification clause 503). i) On bituminous surface @ 0.25kg /sqm Using Cationic RS-I

Bituminous Macadam Providing and laying bituminous macadam using crushed aggregates of specified grading premixed with bituminous binder, transported to site, laid over a previously prepared surface with paver finisher to the required grade, level and alignment and rolled as per clauses 501.6 and 501.7 to achieve the desired compaction (Reference to MORT&H's specification clause 504). With Continuous Type HMP (40-60 TPH) (i) for Grading 1 ( 40 mm nominal size ).

Providing and laying mastic asphalt by mechanical means done in a centralised batching plant with appropriate built- in pollution control units with specified aggregates and lime stone powder (with Calcium Carbonate content not less than 80%) and approved grade of industrial grade bitumen as per approved design mix, transporting the hot mastic ashphalt to the worksite by thermocontainer with the arrangement of maintaing specified temperature during transport, laying with a paver finisher for spreading and floating the plastic mix uniformly on the surface to the specified width and thickness at correct grade and camber through its heated, distortion free steel float and turning sword distributors, applying uniform size of bitumen coated stonechips at a specified rate, on the laid surface through a power driven chip spreader as per the procedure laid down in Annexure - II of IRC : 107 (2013) all complete as per clause 516 along with IRC : 107 for materials and design mix etc. 25 mm thick Industrial grade Bitumen (10/20 Grade) (Bulk) bitumen @ 5.715 kg/sqm & VG-30(Bulk) Bitumen @ 0.014 Kg/Sqm.