Construction of a Culvert and Repair of damaged Bridges Connecting Luhariya Village to Rawatbhata main land under CSR Scheme.

Earthwork in excavation in all types of ground substrate consisting of hard rock / fragmented rock / soft rock / filled up ground / murrum by mannual requiring use of rock breaker, drilling & highly controlled - muffled blasting, chiseling with mechanical means up to a depth of 1.5 m from the original ground level and dewatering if required for foundation of walls, columns, platforms etc. including backfilling with selected excavated materials in plinth and foundation trenches in layers not exceeding 200 mm thick, watering ramming etc. complete and disposing off the surplus materials to a maximum radially measured lead of 1.0 KM. as per drawings, design , safety and specifications and directions of the Engineer. Note :- Bidders should essentially visit and inspect the construction sites, refer the relevant sub-soil investigation report and determine themselves the right and safest method/s of excavation considering the safety of nearby structures and population, before quoting their item rates.

Earth work in surface excavation not exceeding 30cm in depth but exceeding 1.5 m in width as well as 10 Sqm on plan including disposal of excavated earth up to 1.0 KM and lift up to 1.5 m, disposed soil to be leveled and neatly dressed etc. completed and disposing off the surplus materials to a maximum lead of 1.0 KM. radius as per drawings, specifications and as directed by the Engineer.

Demolishing stone rubble masonry manually / brick work by mechanical means including stacking of serviceable material and disposal of unserviceable material within 50 meters lead as per direction of Engineer-in-charge In cement mortar.

Supplying at site of good earth excavated and brought from outside (borrow pits / stock piles) free from weeds, roots, rubbles and other foreign material including royalty and carriage and filling in trenches, plinth and sides of foundation etc. in layers not exceeding 20cm in depth consolidating each deposited layers by ramming and watering and lift upto 1.5m etc. complete (only consolidated fill shall be paid).

Providing and laying 150 mm thick stone soling under floors properly hand packed, filling interstices with spalls, gravels and inert fine material and consolidating to required gradient and camber, spreading, watering etc. complete as per drawings, specifications and direction of Engineer.

Providing and laying cement concrete of 1:2:4 (1 Cement : 2 Coarse sand : 4 graded stone aggregate 20 mm nominal size) in retaining walls, return walls, walls(any thickness) including attached pilasters, columns, piers, abutments, pillars, posts, struts, buttresses, string or lacing courses, parapets, coping, bed block, anchor block, window sills, fillets etc. at all level including transporting of concrete to site, laying including cost of finishing, curing etc. all complete including the cost of centering and shuttering as per specifications and direction of Engineer-in-charge.

Providing & laying Random Rubble masonry with hard stone in foundation and plinth level of building & upto 3.00 Mtr. height from NGL for boundary/compound wall with Cement mortar 1:6 (1 Cement :6 Coarse sand) including cost of labour, materials, curing, raking out the joints, finishing, scaffoldings etc. all complete as per specifications and direction of Engineer in charge.

Providing form work of battened frame with sheathing having plywood lining / MS angle frame with sheathing of MS plate lining so as to give fair finish including centering shuttering strutting and propping etc. height of propping and centering below supporting floor not exceeding 3.5 meters to ceilings and removal of same for foundation, footings, columns, wall, Suspended floors, stairs, landings, balconies, lintels, beams, plinth beams, girders, cantilevers and access platform etc. complete at all level of floors / roof as per specifications and direction of Engineer in charge. Note: Only brand new form-work /shuttering especially fabricated for this work shall only be accepted with the limited repetitions of the same allowed till the surface remains even, and dent free. Only steel scaffolding i.e. pipe, channels etc. shall be allowed for this work.

Providing and laying Thermo-Mechanically Treated reinforcement bars of grade as specified in drawings/specifications and as directed by engineer conforming to IS : 1786 latest revision or the latest relevant code for RCC work including straightening, cutting, bending, placing in position and binding with 20 gauge annealed binding wire and cement mortar cover block of all size in C.M. 1:2 MIX etc. all complete-as per drawings, specifications & direction of engineer in charge. Note :- In case of delay in placing of concrete , Contractor has to clean the existing reinforcement using Rusoff100 chemical of SIKA or equivalent. No extra payment will be given for it.

Providing and laying in position machine batched, machine mixed and machine vibrated design mix cement concrete of all grades grade for Reinforced cement concrete or other works using 20mm size stone aggregates including transporting of concrete to site for laying but excluding the cost of centering, shuttering and reinforcement, including cost of finishing, compaction, curing, approved chemical admixtures conforming to IS 9103 in recommended proportions for achieving slump not less than 120mm and water/cement ratio not more than 0.42 at all level & for all sections as per drawings, specifications & direction of Engineer-in-charge. Use of concrete retarding agent / accelerator conforming to IS 9103 shall also be done if situation demands so. Rates should be based on using 350 kg of OPC 43 grade cement per Cum of concrete. Note- Rate of admixtures for joining old concrete surface to new concrete surface or cold joints should be included in quoted rate.