ROAD WORKS

PART A ROAD WORK Clearing Grass and Removal of Rubbish Clearing grass and removal of rubbish up to a distance of 30 m outside the periphery of the area as per Technical Specifications Clause 201 for Rural Roads of MORD. By Manual Means

Maintenance of Non-bituminous Base and Sub-Base or WBM Road Patching of potholes by draining water, cutting the pothole area to rectangular shape with vertical edges, removing all loose materials, screening and stacking the same for reuse with new materials as per requirement, filling the pothole area with additional volume of crushed stone materials / laterite / Jhama / broken shingles / coated stones of Pakur variety etc. and screenings as applicable, and compacting the same with static roller as per Water Bound Macadam Specification, including cost of all materials and machineries. Using PAKUR variety materials Grade II (53 - 22.4mm) stone aggregates @ 1.00 m3/m3 Stone Screening Type - B 11.20 mm size stone aggregate @ 0.21 m3/m3

Fog Spray Providing and applying Fog Spray using low viscosity (SS Type) Cationic bitumen emulsion for sealing cracks less than 3 mm wide or incipient fretting or disintegration in an existing bituminous surfacing including thoroughly cleaning of surface using scrubber and compressed air jets, applying SS type Bituminous Emulsion using bitumen pressure distributor, including cost and carriage of all ingredients and hire and operational charges of all machinery, tools and plants including fuel, lubricants and cost of quality control as per Clause 513 of Specifications for Road & Bridge Works of MoRT&H (5th Revision). Using Bitumen emulsion (SS I TYPE) (Packed) @ 0.75 KG /m2

Providing and laying Bituminous Profile Corrective Course using Mobile Hot Mix Plant (Light Duty) and using aggregates of Grading-2 of Table-33 premixed with 75kg of bitumen per cum, transported to site laid over a previously prepared surface at specified laying temperature to the required grade, level and alignment, as per specification to achieve the desired compaction including cost and carriage of stone materials and bitumen, hire charges of machinery and equipment, cost of fuel and lubricants and wages of operational staff, quality control complete as per direction of Engineer-in-charge. Using PAKUR variety stone chips VG - 30 (Packed) Bitumen @ 75 Kg /m3

Bituminous Concrete Providing and laying bituminous concrete with Hot Mix Plant using coarse aggregates, filler materials (Cement / hydrated lime / Rock dust) and premixed with bituminous binder of specified grading @ 5.2% (min) for Grading - I and 5.4% (min) for Grading - 2 as per table 500-17 and mix design done as per table 500-10 and job mix formula as per clause 505.3.3, including screening, cleaning of chips and preparing a uniform and quality mix, transporting the hot mix to work site, laying the mixed materials at specified laying temperature, as specified in Table 500-2 with a hydrostatic paver finisher with sensor control to the required grade, lavel and alignment over prepared surface coated with tack coat, rolling with smooth wheeled and vibratory or tandem rollers or with a pneumatic tyre roller of 12 to 15 tonne weight with a tyre prerssure of at least 0.56 MPa, to achieve the desired density as per clause 505.3.5, including cost and carriage of bitumen, crushed aggregates, filler materials and hire charges of machinery and equipment for construciton and quality control complete as per clause 507 of specifications for Road & Bridge works of MoRT&H (5th Revision). For Grading II (13.2 mm nominal size, 30-40 mm thick.) 40 mm thick Using Batch Type HMP of minimum capacity100-120 TPH. Using PAKUR variety stone chips VG - 30 (bulk) bitumen

Prime Coat Providing and applying primer coat with Cationic Bitumen Emulsion of approved grade conforming to IS: 8887-1978 and requisite quantity on prepared surface of granular base including cleaning of road surface and spraying primer using Mechanical means including cost and carriage of bitumen emulsion and all other incidental costs of work complete as per Clause 502 of Specifications for Road & Bridge Works of MoRT&H (5th Revision). For WBM / WMM Surface: Using Bitumen emulsion (SS I TYPE) (Packed) @ 0.85 KG /m2

Tack Coat Providing and applying tack coat with Cationic Bitumen Emulsion of approved grade conforming to IS: 8887-1978 on the prepared surface cleaned with Hydraulic broom, moistening the surface including cost and carriage of emulsion, hire charges of machinery and labour, cost of fuel and lubricants all complete as per Clause 503 of Specifications for Road & Bridge Works of MoRT&H (5th Revision). (i) On Bituminous Surface (Using Bitumen Emulsion at the rate of 0.20 to 0.30 kg per sqm.) Using Bitumnen emulsion (RS I TYPE) (Packed) @ 0.250 KG / m2

Tack Coat Providing and applying tack coat with Cationic Bitumen Emulsion of approved grade conforming to IS: 8887-1978 on the prepared surface cleaned with Hydraulic broom, moistening the surface including cost and carriage of emulsion, hire charges of machinery and labour, cost of fuel and lubricants all complete as per Clause 503 of Specifications for Road & Bridge Works of MoRT&H (5th Revision). (ii) On Granular surfaces treated with primer (Using Bitumen emulsion at the rate of 0.25 to 0.30 kg per sqm.) Using Bitumnen emulsion (RS I TYPE) @ 0.275 KG / m2

Mastic Asphalt Providing and laying Mastic asphalt wearing course with paving grade bitumen meeting the requirements given in table 500-29 using approved coarse aggregate, fine aggregate, filler material and bitumen, prepared by using Mastic cooker including cost and carriage of all ingredients, cost of heating aggregates and binder, mixing in specified proportions conforming to approved Job Mix Formula and laid to required level and slope after cleaning the surface, compacting, sealing the construction joints and surface finishing conforming to specifications including providing antiskid surface with bitumen pre-coated fine-grained hard stone chipping of 13.2 mm nominal size at the rate of 0.005 cum 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 not less than 100°C, protruding 1 mm to 4 mm over mastic surface, including the hire charges of all tools and plants and machinery, pay of operators, cost of fuel and lubricants and all other incidental charges and quality control all complete as per Clause 516 of Specifications for Road & Bridge Works of MoRT&H (5th Revision). 25 mm thickness Using PAKUR Variety stone chips 10/20 Grade(Packed) Bitumen VG - 30 (Packed) Bitumen

Construction of Sub Base using Local Materials: Construction of Sub Base using Local Materials, spreading in uniform layers with Motor grader on prepared surface, including screening the metal as necessary, mixing by mix in place method with Rotavator at OMC, and compacting with vibratory roller to achieve the desired density, lighting, guarding and barricading including cost and carriage of all materials and making necessary earthen bundh of one metre wide on each side to protect the edges complete as per Clause 401 of Specifications for Road & Bridge Works of MoRT&H (5th Revision). For Construction of Sub Base by compacting river bed materials.(with stacking) Using NB variety materials RBM @ 1.28 m3 / m3