WBPWRD/EEMHDI/NIET4/SL1/26-27

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 Manual Means Reinforced Cement Concrete.

Replacement of Expansion Joints complete as per drawings.

Epoxy bonding of new concrete to old concrete.

Providing and laying of a strip seal expansion joint catering to maximum horizontal movement upto 80 mm, complete as per approved drawings and standard specifications to be installed by the manufacturer / supplier or their authorised representative ensuring compliance to the manufacturer's instructions for installation.

Supplying, fitting and placing HYSD bar reinforcement in Bridge Super-structure including initial straightening, straightening of coils bars, removal of loose rust (if any), cutting to requisite length bending, binding with annealed wire not less than 1 mm in size and conforming to IS 280 at every intersection hooked and bent to correct shape and placed on forms etc. including cost of black annealed wire and cost of loading, unloading, carriage of all steel materials complete as per drawing and technical specifications.

Supplying. preparing and placement of ready mix non shrink cementious microconcrete having no metalic aggregate or chlorides for repairing and jackting of damaged R.C.C. members. The micro concrete should achieve a compressive strength not less than 10 MPa after 24 hours, 40 Mpa after 7 days and 50 Mpa aftre 28 days at 300C. It should have unrestrained expansion in between 1 to 4%, flexural strength shall not be less than 5 MPa after 28 days. Micro concrete should have a co-efficient of thermal expansion similar to that of the host concrete.

Furnishing and placing reinforced cement concrete in super structure with coarse aggregates of appropriate nominal size and grading, fine aggregate (sand) conforming to proper grading zone, both of approved quality and cement and admixtures, as necessary, including labour, cost and carriage 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 as per drawing and technical specification including the cost of necessary form work and staging complete. as per drawing and technical specifications. RCC Grade M30 For solid slab superstructure. Height upto 5m.

Uplifting of Superstructure span by jacking up from below by placing the jacks on pier /abutment caps for span weight as below: Span Wt. : Upto 240MT

Earthwork in excavation from borrow pits (land arranged by the Agency) and depositing in layers of 250mm including breaking clods in embankment works and to fill up back of abutments, depressions and ruts with an initial lead up to 50m and initial lift up to 1.5 m making bunds at top as directed dressing complete carriage upto 2 km. (Stack measurement). Chainage upto 2.00 km.

Back filling behind abutment, wing wall and return wall complete as per drawing and Technical specification. Sandy material.