WBPWD/EE/BKPD/NIeT-15/2026-27

Excavation in Soil by Manual Means Excavation for roadway in soil using manual means including loading in truck for carrying of cut earth to embankment site with all lifts and lead upto 1000 metres (Reference to MoRT&H's specification clause 301).

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 Plant Mix Method Construction of granular sub-base byproviding graded material such asnatural sand/crushed gravel/crushedstone/combination depending uponthe required grading spreading inuniform layers with motor grader onprepared surface, mixing byappropriate mechanical mixure (withcontrolled addition of water), and compacting with vibratory roller toachieve at least 98% of the maximumdry density for the materialdetermined as per IS:2720 (Part 8),complete as per clause 401 1A(v) Rate per cum for grading-V Material Using Pakur Variety Stone Aggregates. (Payment will be made on the basis of finished compacted volume)

Granular Sub-Base with Graded Material Plant Mix Method Construction of granular sub-base by providing graded material such asnatural sand/crushed gravel/crushedstone/combination depending up on the required grading spreading inuniform layers with motor grader onprepared surface, mixing by appropriate mechanical mixure (withcontrolled addition of water), and compacting with vibratory roller toachieve at least 98% of the maximumdry density for the materialdetermined as per IS:2720 (Part 8),complete as per clause 401 (iii) Rate per cum for grading-III Material Using Pakur Variety Stone Aggregates. (Payment will be made on the basis of finished compacted volume)

Wet Mix Macadam Providing, laying, spreading and compacting graded stone aggregate conforming to the grading of table 400- 13 revised vide table 2 of IRC : 109 (2015) to wet mix macadam 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 paver in sub- base / base course on well prepared surface and compacting with vibratory roller to achieve the desired density .The thickness of a single compacted layer shall not be less than 75 mm.(Reference to MoRT&H's specification 406. Using Pakur Variety Stone Aggregates. (Payment will be made on the basis of finished compacted volume)

Bituminous Macadam Providing and laying bituminous macadam with 100-120 TPH hot mix plant using crushed aggregates of specified grading premixed with approved bituminous binder @ 3.3% (min) for Grading -1 and 3.4% (min) for Grading -2 by weight of total mix , transported to site, laid over a previously prepared base 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). for Grading II (19 mm nominal maximum aggregate size) Layer Thickness 50-75mm

Prime Coat Providing and applying primer coat with cationic bitumen emulsion SS1 grade conforming to IS:8887 on prepared porous granular surface including clearing of road surface and spraying primer using mechanical means (Reference to MORT&H's specification clause 502). i) On WMM/WBM surface @ 0.85kg /sqm. Using Cationic SS-1

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

Mastic Asphalt Providing and laying 25 mm thick mastic asphalt wearing course with approved grade bitumen meeting the requirements given in table 500- 39, prepared by using mastic cooker and laid to required level and slope after cleaning the surface, including providing antiskid surface with bitumen precoated fine-grained hard stone chipping of 13.2 mm nominal size at the rate of 0.005cum per 10 sqm and at an approximate spacing of 10 cm center to center in both directions, pressed into surface when the temperature of surfaces is not less than 100°C, protruding 1 mm to 4 mm over mastic surface, all complete as per clause 516 (Reference to MORT&H's specification clause 516 along with IRC:107).

Construction of zero slump dry lean cement concrete Sub- base over a prepared sub-grade with coarse and fine aggregate conforming to IS: 383, the size of coarse aggregate as per approved design mixed, aggregate cement ratio not to exceed 14:1 where OPC is used and 12:1 where PSC or PPC is used, aggregate gradation after blending to be as per table 600-1, cement content as per clause 601.2.2, cementitious material content not to be less than 140 kg/cum with use of mineral admixture if used to be as per clause. 3.4 of IRC:SP:49 (2014) optimum moisture content to be determined during trial length construction, concrete strength not to be less than 7 Mpa at 7 days as per Cl.4.1 of IRC:SP:49(2014), mixed in a batching plant, transported to site, laid with a paver with electronic sensor, compacting with 8-10 tonnes vibratory roller, finishing and curing (Reference to MORT&H's specification 601 along with IRC:SP:49).