WBPWRD/EE/PHD/eNIT-06/25-26/1

Hire and labour charges for staging with sal bullah for super structure of bridge (Major and Minor) including stripping off and removing clearing on completion of work as per design and drawing approved by the Engineer-in-charge

Cleaning the exposed corroded Reinforcement as well as wron out concrete by sand blasting with air compressure including all materials, hire charges of machineries and labour etc. all complete as per technical specification and direction of the Engineer-in-Charge

Providing anti corrosive protective coating to inhibit the corrosion to HYSD Reinforcements including two coats of anti corrosive coatings of consumption as per the Manufacturers specification , cleaning etc complete as per the direction of the Engineer In Charge.

Removing corroded worn out portion of reinforcement (when the area of baris damaged by more than 25%) by cutting and replacing the same by a new plain round bar of requisite diameter by binding with required lap / weldingwith old bar, including cost of reinforcement, complete in all respect including removing unserviceable materials from site as per direction of the Engineer - in - charge. : Payment will be made on the basis of weight (Kg.) of new reinforcement which is to be executed.

Scraping Plaster in Lime or Cement Mortar from Brick / Stone Masonry as per Technical Specification Clause 202 for Rural Roads of MORD

Epoxy bonding of new concrete to old concrete entire surface of piers/walls

Removal of defective concrete, cleaning the surface thoroughly, applying the shotcrete mixture mechanically with compressed air under pressure,comprising of cement, sand, coarse aggregates,water and quick setting compound in the proportion as per clause 2807.1., sand and coarseaggregates conforming to IS: 383 and table 1 of IS:9012 respectively, water cement ratio ranging from0.35 to 0.50, density of gunite not less than 2000kg/cum, strength not less than 25 MPa andworkmanship conforming to clause 2807.6. (40 mm average thickness)

Guniting concrete surface with cement mortar (25 mm nominal thick) applied with compressor after cleaning surface and spraying with epoxy complete as per Technical pecification.)

Providing and inserting nipples with approved fixing compound after drilling holes for grouting as per Technical specifications including subsequent cutting/removal and sealing of the hole as necessary of nipples after completion of grouting with Cement/Epoxy.

Sealing of cracks / porous concrete by injection process through nipples/Grouting complete as per Technical specification.Cement Grout

Patching of damaged concrete surface with polymer concrete (25 mm nominal thick) and curing compounds, initiator and promoter, available in present formulations, to be applied as per instructions of manufacturer and as approved by the Engineer.

Dismantling Stone Masonry as per Technical Specification Clause 202. Dismantling of existing structures like culverts, bridges, retaining walls and other structure comprising of stone masonry, including disposal of unserviceable material and stacking the serviceable material with all lift and lead of 1000 m as per Technical Specifications Clause 202 for Rural Roads of MORD. Rubble Stone Masonry in Cement Mortar.

Dismantling of Structures, Dismantling of existing structures like culverts, bridges, retaining walls and other structure comprising of masonry, cement concrete, steel work, including T&P and scaffolding wherever necessary, sorting the dismantled material, disposal of unserviceable material and stacking the serviceable material with all lifts and lead of 1000 m as per Technical Specifications Clause 202 for Rural Roads of MORD. By Mechanical Means, Reinforced Cement Concrete.

Earth work in excavation of foundation of structures as per drawing and technical specification, including setting out, removing, spreading or stacking of spoils within a lead of 150 m. as directed and including trimming the sides of the trenches, leveling, dressing and ramming the bottom, and backfilling with approved material complete as per direction of the Engineer-in-Charge .In all sorts of soil excluding marshy soil & rocks (soft or hard) by manual means. Up to 3m depth.With pumping out water including shoring as required.

Sand filling in foundation trenches and at the back of abutments, wing-walls etc. with good local fine sand free from earth in layers not exceeding 15 cm. including inundating each layer by profuse water and poking and ramming layer by layer complete including supply of sand. Quality of sand is to be approved by the Engineer-in-charge.

Providing and laying Design Mix concrete for plain / reinforced concrete work in any part of bridge (excluding bottom plugging) with coarse aggregates of appropriate nominal size and grading, fine aggregate (sand) conforming to proper grading zone, both of approved quality and cement, as necessary, including labour, cost andcarriage of all materials and including preparation of design mix, approval of the same by the Engineer-in-Charge and cost for quality control, sampling, testing etc. all complete but excluding cost of labour and materials for formwork & reinforcement works. PCC M-15 Grade (Using Concrete mixture)

Plain / Reinforced Cement Concrete in Open foundation with or without reinforcements, in any part of foundation of bridges / culverts with graded stone chips of appropriate nominal sizes, including screening and cleaning of coarse aggregates, fine aggregate (sand) conforming to proper grading zone, both of approved quality and cement, as necessary, cost of curing with water, including cost and carriage of all materials and including preparation of design mix, approval of the same by the Engineer-in-Charge, cost for quality control, sampling, testing etc. including cost of formwork but excluding reinforcement complete as per drawing and technical specifications. PCC M-30 Grade (Using Concrete mixture)

Anti carbonation coating for protection of concrete surface from carbonation by with two coats of single component solvent free, cold applied, pure acrylic polymer, (Anti carbonation coating) breathable, elastomeric on a water based priming coat [Total 3 (three) coats including priming coats] having 50% elongation property, UV resistant capacity, non-taxic with aesthetic view, eco friendly and low VOC (Volatile Organic Compound) materials. The product complies with the requirement as laid out in as per ASTM D822. Recommended DFT (Dry Film thickness) : 100-110 microns per coat. Top coat may have with 5%-10% dilution if required and anti carb primer with 100% dilution with approx. DFT : 20 micron. Total system DFT should not be less than 230 micron for getting batter anti carbonation property on concrete surface as per direction of Engineer in charge. Note : 1) The rate is exclusive of the cost of scaffolding. 2) It may be used for the exposed surface of concrete structures. 3) This item shall be executed only after specific Instruction of Superintending Engineer of the respective circle.

Drainage Spouts in Superstructure including providing drip mouldings and also including supplying, fitting and fixing approved type of materials complete as per drawing and Technical specification vide clause no. 2705 of MoRT&H’s Specification for Road & Bridge Works.

Repair of RCC Railing Carrying out repair of RCC M30 railing to bring it to the original shape.

Clearing and grubbing road land including uprooting wild vegetation, grass, bushes, shrubs, saplings and trees of girth upto 300 mm, removal of stumps of such trees cut earlier and disposal of unserviceable materials and stacking of serviceable material to be used or auctioned, upto a lead of 1000 m including removal and disposal of top organic soil not exceeding 150 mm in thickness as per Technical Specifications Clause 201 for Rural Roads of MORD. By Manual Means, In area of thorny jungle.

Plaster (to wall, floor, ceiling etc.) with sand and cement mortar including rounding off or chamfering corners as directed and raking out joints including throating, nosing and drip course, scaffolding/staging where necessary (Ground floor).[Excluding cost of chipping over concrete surface] With 1:3 cement mortar, 15 mm thick plaster.

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