Removal of old fills distribution headers and providing fixing and erecting of new PVC fills and PVC distribution headers at location in NDCT 4

Earthwork in excavation in all types of ground substrata consisting of hard rock / fragmented rock / soft rock / ordinary soils / filled up ground / murrum requiring use of rock breaker, drilling, chiseling with mechanical / manual means etc. 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 and determine themselves the right and safest method/s of excavation considering the safety of nearby structures and population, before quoting their item rates (Blasting is not permitted).

Filling in foundations and plinth with sand with all cost of leads in layers of not more than 150mm thick each layer well rammed and consolidated including watering etc. complete.

Providing and laying 230 mm thick stone soling properly hand packed, filling interstices with spells and consolidating to required gradient and camber including spreading, watering and rolling binding materials earth etc. complete as per drawings, specifications and direction of Engineer (using quarry stone).

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 excluding the cost of centering and shuttering as per specifications and direction of Engineer-in-charge.

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 maximum nominal 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.

Add extra for using more cement than specified in item of PCC or RCC.

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.

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.

Demolishing brick work manually/by mechanical means including staking of serviceable material and disposal of unserviceable material within 50 meters lead as per direction of Engineer-In-Charge.

Demolishing R.C.C. work, including stacking of steel bars and disposal of unserviceable material with in 50 metres lead as per direction of Engineer-in-charge.