Laying of Chilled Water Pipeline

SIT&C of under ground MS (Mild steel) chilled water pipe along with THERMOCOLE insulation, (chilled water pipe Nominal Dia -600mm, Thickness 9.5mm). For this item separate General & Specific specification, specification for thermocole are provided that needs to be considered as scope of work.

Providing and laying design mix reinforced cement concrete of M30 Grade by weigh batching using graded stone aggregate of 20mm max. size and coarse river sand/ crushed stone sand of approved quality including admixtures of approved Brand and quality, including handling & transportation, scaffolding, mechanical mixing, placing to required location by hoisting and / or pumping & mechanical vibration, consolidation, finishing, curing, hacking of concrete surfaces wherever required etc. complete at all levels in substructure/superstructure, roads, etc as per specifications & also including dewatering, if any, complete all as per drawings and technical specifications and as directed by the Engineer-in-Charge but excluding formwork, shuttering and steel reinforcement.

Providing and laying in position cement concrete of 1:3:6 (1 cement, 3 river Coarse river sand/ crushed stone sand, 6 graded stone aggregate of maximum size 20 mm) at all elevations including consolidation, finishing curing etc. complete all as per approved drawings and technical specifications and as directed by the Engineer-in-Charge but excluding the cost of form work shuttering, centering all as directed by Engineer-in-charge.

Providing Reinforcement steel of all diameters for reinforced cement concrete at all levels. including supplying, preparation of bar bending schedules, cutting, bending, transporting to all elevations, placing and keeping in positions, all leads, fixing, tieing with 1.2 mm dia annealed GI coated binding wire including all labour charges, cost of cover blocks (in same grade of concrete) of various thicknesses and sizes etc. all as per drawings and technical specifications and as directed by the Engineer-in-Charge.

Providing Structural steel work using angles,plates, channels,joists, tubular and other sections,welded and/or bolted inbuilt up sections for trusses,structural steel floors, frameworks, monorails and other structures including supplying, cutting, welding, fabricating, hoisting, fixing in position,applying a priming coat of approved steel primer etc.complete all as per specifications,drawings and as directed by the Engineer in charge

Providing, centering ,shuttering Form work using Film faced plywood to get a neat form finish surface for all types of structures including necessary strutting, steel/timber framework, steel proping, staging, supports etc and deshuttering the same after the specified time all as per drawings and technical specifications and as directed by the Engineer-in-Charge

Filling of areas with gravel/Murrum brought from outside BARC sources, for embankment, below pipelines, pedestals, around building etc., including loading, transporting, unloading, removal of organic matter/roots/plastic/ all kinds of vegetation/small shrubs, etc., breaking of lumps and spreading in layers maximum compacted thickness of 250mm thick with suitable Earth rammers/vibro roller to achieve a minimum of 90% proctor density at optimum moisture content with all lifts, bailing/ pumping out of water to keep the site dry while backfilling, etc. complete all as per drawings and Technical specifications and as directed by the Engineer-in-Charge. Notes: 1. All necessary tests shall be conducted as per QAP and rate quoted shall include all tests. 2. The rates are applicable for the net quantities arrived as per the actual difference in levels jointly taken by the department and the contractor after compaction of the earth as mentioned in the item description. . 3. The rates quoted shall include all senorage, mining charges etc. 4. The gravel shall be procured from approved sources.

Construction of Granular Sub base by providing machine crushed graded material conforming to Grading V of Table 400-1 & physical requirements as per Table 400-2 of MORTH Fifth Revision including spreading in uniform thickness with motor grader on prepared surface, mixing in a mechanical mix plant at OMC and compacting with vibratory roller to achieve the desired density complete as per specification etc. including cost and conveyance of all materials of specified sizes, seigniorage charges, water etc. to site, labour charges for all operations, hire and operational charges of power roller and other T&P all taxes etc. complete all as per drawings, specifications and as directed by the Engineer-In-charge.

Providing and laying crusher dust bedding below hume pipes and on sides passing through 5.6mm seive or any other places as complete all as per drawings, specification and as directed by Engineer-In-charge. Cost including supply of materials and labour.

Providing and layingn on pressure NP3 class RCC Hume pipes of approved make, with collars jointed with stiff mixture of cement mortar in the proportion of 1:2, laying to the levels, slopes and as per the approved drawings and specifications and as directed by the Engineer-in-charge including testing of joints etc.

1200 mm Dia RCC Hume pipe class Np3