Civil Construction Renovation of existing Infrastructure at CGS cum Mother Station in Aligarh and Bulandshahr GA

EXCAVATION UPTO 1.5mt : Excavation up to 1.5 mt. depth in all kind of Hard soil in any plan dimension including stacking of serviceable excavated earth, and disposal of surplus and unserviceable material away and outside the IOAGPL boundary limits, after backfilling using serviceable earth, irrespective of lead involved by means of mechanical transport or any other equivalent means, keeping IOAGPL indemnified of any liabilities from statutory/local bodies, all complete as specified & directed. Proper shuttering/support has to be made to support side soil wall and to avoid collapse of soil. Soil to be leveled and neatly dressed complete in all respect as per scope of work, detailed construction drawings, as per technical specifications and directions of the Engineer-in-charge.

EXCAVATION 1.5 TO 3.0 mt : Excavation for foundation from 1.5 mt. to 3.0 mt. depth in all kind of Hard soil in any plan dimension including stacking of serviceable excavated earth, and disposal of surplus and unserviceable material away and outside theIOAGPL boundary limits, after backfilling using serviceable earth, irrespective of lead involved by means of mechanical transport or any other equivalent means, keepingIOAGPL indemnified of any liabilities from statutory/local bodies, all complete as specified & directed. Proper shuttering/support has to be made for excavation beyond 1.5mt to support side soil wall and to avoid collapse of soil. Soil to be leveled and neatly dressed complete in all respect as per scope of work, detailed construction drawings, as per technical specifications and directions of the Engineer-in- charge.

EARTH FILLING Supplying and filling imported earth of approved quality in layers not exceeding compacted thickness of 200mm incl. Watering ,ramming, compacting, and if required, rolling and re-rolling with power roller , mechanical compactors of 80KN- 100 KN capacity to achieve maximum compaction, all complete as per direction of Engg.-In- Charge. The earth should be free from weeds, grass and other objectionable debris. Black Cotton soil shouldn't be used. Measurement basis compacted thickness only. Rate shall include conducting compaction test to achieve optimum moisture conditions to give at least 95% of the maximum dry density (Proctor Density). Contractor to submit test reports for OMC, MDD (Proctor Density). Obtaining statutory permission for arrangement of loose good earth shall be in the scope of the contractor.

FILLING WITH EXCAVATED SOIL Available excavated Good Soil in Filling after execution of work to proper grade and level with selected materials from available excavated soil from spoil heaps within a lead of 50m, including re- excavating the stored serviceable soil excavated earlier, breaking clods, laying at all depths and heights in layers of thickness not exceeding 15cms. including watering, rolling and ramming by manual/mechanical means, to achieve 90% of maximum dry density, dressing, trimming, leveling the top surface etc. in foundations, plinths, road embankments, road, shoulders, trenches etc. complete in all respect as per scope of work, detailed construction drawings , as per technical specifications and directions of the Engineer-in-charge

SAND FILLING : Supplying and filling approved SAND of good quality (River Sand), under floors, pavements, in foundations etc. for all depths and heights including cost of sand, royalties, transportation to site for all leads and lifts , including loading, unloading, spreading in layers of loose thickness not exceeding 150mm, watering, ramming, compacting with mechanical compactors and/ or other equipment to the specified levels to achieve 85% relative density, including preparation of sub-grade to the required slope, providing testing apparatus and testing the degree of consolidation all complete as per drawings, specifications and direction of Engineer-in-charge. The rates shall be inclusive of the cost of all labour, material, equipment etc. complete.

MURRUM FILLING Supplying and filling of Hard Murrum/Quarry Spoil of good quality brought from outside in layers of loose thickness not exceeding 200mm, under floors, pavements, in foundations etc. for all depths and heights including cost of murrum, royalties, transportation to site for all leads and lifts, including loading, unloading, spreading in layers of loose thickness not exceeding 200mm, watering, ramming, compacting with mechanical vibrator compactors and/or other equipment (8-10 ton vibrator road roller) to the specified levels to achieve 85%-95% relative dry density as per IS: 2720 as directed, including preparation of sub-grade to the required slope, providing testing apparatus and testing the degree of consolidation all complete as per drawings, specifications and direction of Engineer-in- charge. Filling material shall approve by EIC/Consultant before start of the work. Level sheet to be provided for each level. The rates shall be inclusive of the cost of all labour, material, equipment etc. complete.

RUBBLE SOLING Providing and laying 230mm thick dry rubble stone soling using 150-225mm size boulders in foundations, plinth flooring, trenches, ramps and other areas including packing with smaller stones of 65 mm & 40 mm chips in voids, bonded with stone grit or good quality murrum brought from outside, fine aggregate etc. watering, consolidating by manual tamping as directed.The compacted depth shall be taken for the measurement of quantity.

ANTI TERMITE TREATMENT : Carrying out anti termite treatment with chlorophyriphos 20% EC in three parts i.e. at foundation level, at plinth level and at periphery of the building as per IS : 6313 (Part I- III)-1981, 1st revision, as directed. Plinth area to be measured. 10 years Guarantee to be given by the agency. Application of anti termite treatment given below. a) Application concentration or chemicals: Chlorphyriphos 20% EC- 50 ml mixed in 1 liter. water b) After the final depth of the foundation trenches is reached ,the horizontal and vertical sides shall be soaked with insecticides by high pressure pump at least 200 ml for 1 sq. mt. along both sides of foundation walls and foundation bottom. c) After vertical and horizontal sides of the foundation trenches are treated in the manner as described above. The floor area in between the walls shall be bored in the natural soil surface at suitable space intervals depending upon the types of soil. The chemical used shall be at the rate of at least 200 ml for 1sq. mt. d) After the walls are constructed and treated as specified above, complete saturation treatment shall be given by digging 1' 6" deep on the outer side and saturating the same with insecticides at the rates of at least 1.5 lts. per linear foot of wall. e) Treatment shall not be made when the soil or fill is excessively wet or immediately after heavy rains, to avoid surface flow of the toxicant from application site. Unless the treated areas are to be immediately covered, precautions shall be taken to prevent disturbances of the treatment by human or animal contact with the treated soil.

P.C.C. : (1:3:6) Providing and laying Plain cement Concrete of nominal mix 1:3:6 by mass (1 cement: 3 coarse sand: 6 crushed stone aggregates/gravels) with 40mm down size graded crushed stone aggregates for all depths below and up to plinth level in foundations, drains, fillings, non suspended floors, pavements and ramps or any other works etc. in any shape, position, thickness and finishing the top surface rough or smooth as specified and directed, including tamping, ramming, vibrating, curing etc. all as specified including the cost of materials, labour, tools, tackles, machinery, steel scaffolding/staging, sampling and testing all complete as per specification and direction of EIC/Consultant. Actual/Net measured quantities shall be paid. Cost shall including of formwork.

P.C.C. : (1:4:8) Providing and laying Plain cement Concrete of nominal mix 1:4:8 by mass (1 cement:4 coarse sand: 8 crushed stone aggregates/gravels) with 40mm down size graded crushed stone aggregates for all depths below and up to plinth level in foundations, drains, fillings, non suspended floors, pavements and ramps or any other works etc. in any shape , position, thickness and finishing the top surface rough or smooth as specified and directed, including tamping, ramming, vibrating, curing etc. all as specified including the cost of materials, labour, tools, tackles, machinery, steel scaffolding/staging, sampling and testing all complete as per specification and direction of EIC/Consultant. Actual/Net measured quantities shall be paid. Cost shall excluding of formwork.