Bhabha Atomic Research Centre Tender

Providing and constructing Brickwork in cement mortar 1:4 using crushed sand with Flyash/ Flyash Lime bricks with minimum 70 kg/ sq.cm strength of approved make and size in super structure up to and including Floor II Level including, scaffolding, raking out joints, curing, cleaning complete all as per specifications and drawings.

Providing and constructing Half brick masonry using Flyash/ Flyash Lime bricks with minimum 70 kg / Sq.cm strength of approved make and size in partition walls in C.M 1:4 (using crushed sand) including scaffolding, raking out joints, curing etc. complete and with Stiffners of RCC 1:2:4 (105 X 75 mm size) at every 900 mm height including form work curing etc. complete as per specifications but excluding reinforcement in Super Structure up to Floor - II level. (Reinforcement will be paid under relevant item)

Providing 15 mm thick plastering using Ready mix internal plastering compound of approved make for internal faces of brickwork / concrete surfaces including preparation of the surface, curing, cleaning, scaffolding complete all as per specifications and as directed at site by the Engineer-in-charge.

Providing 20 mm thick plastering using Ready mix external plastering compound of approved make for external faces of brickwork / concrete surfaces including preparation of the surface, curing, cleaning scaffolding up to 10 metres height complete.all as per specifications including forming drip moulds wherever necessary and as directed by the Engineer-in-charge.

Providing and applying one coat of cement primer of approved brand on wall surface to receive specified paint including scaffolding complete all as per specifications and as directed by Engineer-in-charge.

Providing, applying wall painting two coats on new work with premium plastic emulsion paint of approved brand to give an even shade without cement primer, including preparation of the surfaces, scaffolding complete. as per specifications and as directed by the Engineer-in-charge.

Providing and applying white cement based wall putty of approved make over concrete or Plastered surface up to 3 mm thick to get uniform surface free from undulation including cleaning complete all as directed by the Engineer-in-charge.

Providing and painting TWO coats of synthetic enamel paint on new wooden surfaces of approved brand and manufacturer of required colour to give an even shade over an under coat of suitable shade primer of approved brand and manufacturer including preparation of the surfaces, scaffolding complete. as per specifications and as directed by the Engineer-in-charge.

Providing and Painting two coats on steel surfaces with synthetic enamel paint of approved bnrand and manufacture to give an even shade over a Primer Coat.including preparation of the surfaces, scaffolding complete. as per specifications and as directed by the Project Engineer.

Providing, applying one coat of acrylic based Textured plaster(Polymer based Textured Coating / Synthetic plaster by metallic trowel) with the (STUCCO Texture) finish or approved equivalent meeting all the technical specifications as per relevant codes and standards with average thickness of 2.50 mm and Finished with 3 Coats of High performance coating or approved equivalent meeting all the technical specifications as per relevant codes and standards and of approve shade including preparation of the surfaces, complete. as per specifications and as directed by the Project Engineer. Tentative suggested make for guidance of bidders: "DURASHIELD- Dura tuff/Kemtex" or approved equilaent.

Providing, applying and finishing walls with TWO Coats of water proof cement paint of approved make of required shade over new work including preparation of the surfaces, scaffolding complete. as per specifications and as directed by the Engineer-in-charge.

Providing and injecting approved non cementitious grout in proportion recommended by the manufacturer into cracks/holes/gaps/honey-comb area of concrete of concrete/masonry by suitable gun/pump at required pressure including cutting of nipples after curing etc. complete as per directions of Engineer-in-charge. Note: The measurement will be made on the basis of actual weight of approved grout powder utilized for grouting.

Filling the gap between aluminium frame & adjacent RCC / Brick work / Stone work by providing weather silicon sealant over backer rod of approved quality as per architectural drawings and direction of Engineer-in-charge complete Up to 5 mm depth and 5 mm width.

Providing SFMC Micro concrete for strengthening of structural members including mixing, pouring, curing as per manufacturer specifications and as directed by the Engineer-in-charge. Using 100% SFMC

Providing structural repairs in old damaged concrete structures / surfaces with approved Polymer with following operations 1) Removal of loose/Spalled or damaged concrete by chipping and cleaning the concrete surface and reinforcement steel with wire brush and with water 2) Cleaning the re bars with Acetone for complete rust removal and washing with water to make the surface clean. 3) Applying protective coat / bond coat using polymer and cement in the proportion of 1; 1.5 (1 part of polymer and 1.5 parts of cement in synthetic enamal paint like consistancy with brush 4) Reinstate the area with polymer modified mortar in layers of maximum 20 mm with the proportion of Cement 50 Kg : washed and dried river sand 87.50 kg ; silica sand 37.50 Kg. mixed with 10 litres of Polymer (or 1 Kg cement : 1.75 kg washed and dried river sand ; 0.75 Kg silica sand : 200 ml polymer) 5) If thickness of repair exceeds 20mm , after every 20 mm thick repair, bond coat as per 2 above to be applied and further thick of repair to be continued for each layer. This work is inclusive of all materials, labour, complete all as directed at site using approved polymer suitable for structural repair shall be used). Note: Scaffolding will be paid separately under relevant item.

Providing and fixing double tubular scaffolding system using Hframes with cup lock type on the exterior side upto seven story height made with 40 mm dia M.S. tube 1.5 m centre to centre horizontal and vertical tubes joining with cup and lock system with M.S. tubes, M.S. tube challies, M.S clamps and M.S staircase system in the scaffolding for working platform etc. and maintaining it in a serviceable condition for the required duration as approved and removing it thereafter. The scaffolding system shall be stiffened with bracings, runners, connection with building etc. wherever required for inspection of work at required locations with essential safety features for the workmen etc. complete as per directions and as approved by the Engineer -in - charge. The elevational area of the scaffolding shall be measured for payment purposes. The payment shall be made once irrespective of duration of scaffolding. Note: (1) The elevational area of the scaffolding shall be measured for payment purposes. (2) For all items under this work order which require scaffolding, the Scaffolding will be measured and paid only once, irrespective of duration of scaffolding for the entire work and will not be seperately paid for each item. (3) Scaffolding shall be removed only after completion of all works. (4) The scaffolding once provided shall be removed after the entire work is neatly completed in all respects and payment shall be made after completion of all works and measurement will be taken only once. (5) Necessary aluminium/ M.S. ladder/staircase module shall be provided at the cost of the contractor, upto the full height of scaffolding at required locations around the building to enable department Engineer/Supervisor to closely supervise the repair work at heights.The cost of the same shall be deemed to be included in the quoted rate. (6)Contractor has to make arrangement at his own expenses for temporary sealing of windows/openings with plywood, to avoid breaking of windows panes, and covering outdoor ac units during the progress of work (7) Wherever scaffolding has to be erected over existing lawns or flowerbeds, then all such locations shall be completely covered with tarpaulins before erecting scaffolding. (8) Safety nets and nylon screens shall be provided for full height of scaffolding to prevent falling of debris and the cost of the same shall be deemed to be included in the quoted rate. (9) Scaffolding shall be erected as per the provisions of IS 3696 (10) All safety precautions and measures shall be taken as per BARC Construction safety Manual.

Providing and fixing G.I. chicken mesh in the junctions of concrete & brick work / masonry or as directed by the Engineer in charge including cutting, fixing with nails in position before plastering complete all as directed by the Engineer-in-charge. (Note : Only area of the chicken mesh used alone will be measured)

Filling the groves of expansion joint Horizontal / Vertical tightly with Polyurethane backer rod/sheet as required upto a height of 20m including material, scaffolding etc all complete as directed by the Project Engineer.

Providing supplying and sealing the Expansion Joints with Gungrade Polysulphide sealant suitable for RCC Construction Joints by removing the expansion joint board up to 25 mm deep and cleaning the suface neatly and filling Gungrade sealent up to 25 mm deep to the lines and levels complete all as per manufacturers specifications and as directed by the project engineer (50 mm wide). Tentative suggested make for guidance of bidders:'MASTERFLEX 700i' of BASF construction Chemicals or approved equivalent.

Providing and fixing 3 mm thick Aluminium sheet covering over expansion joints with iron screws as per design to match the colour/ shade of wall treatment including all materials, labour, scaffolding complete as per drawings and specifications. 150 mm wide anodized 3mm thick Aluminium sheet to the shape.(Note: Powder coating of sheet if done in lieu of anodizing will be deemed to be included in the quoted rate)

Supplying man power along with necessary pans, spades, shovels pickaxe, punjas, ropes, small special spade, raincoats, safety shoes, etc. minimum two number of labour per day upto maximum any number of labour as and when decided by Project Engineer to work for eight hours per day or monsoon period to carry out the cleaning of choked drains grating grills/hume pipes /footpath by removing the dry leaves, silt etc. and also carry out seasonable departmental work allotted by Project Engineer from time to time.

Providing and fixing in position 50 mm thick Joint filler board of Approved make in expansion joints to the required size and shape, placing and keeping in position complete as per specifications and drawings and as directed by the Engineer in charge.

Providing & Applying polymer modified, liquid applied, crack bridging, elastic, 2 pack acrylic polymer modified cementitious water-proofing coating system on concrete /plastered wall surfaces. The waterproofing chemical shall have Tensile strength of not less than 2 N/mm2 , Elongation not less than 35%. The substrate must be prepared by suitable mechanical preparation techniques such as high pressure water jetting, needle guns, blast cleaning etc. and properly pre-wetted to a saturated surface dry (SSD) condition. Blast clean to remove all contaminants within pores /blowholes.Mixing of Mortar shall be carried out as per Manufacturers specification using slow speed paddle mixer (500- 600 rpm).Subsequently,application of mortar and Curing shall be carried out as per Manufacturer's specifications all as per the directions of the Engineer -in Charge at all levels and locations complete. Note: Scaffolding will be measured and paid under relevant item.

Providing, centering,shuttering Form work using PVC film faced plywood to get a neat form finish surface for all types of structures including necessary strutting, proping, staging, supports etc and deshuttering the same after the specified time all as per drawings, specifications and as directed by the Engineer-in-charge at all levels.Note: Contractor shall submit shop drawing alongwith supporting design calculations well in advance for approval of Engineer-in Charge at no additional cost to the Department. For Super Structure

Providing Reinforcement Steel for reinforced cement concrete at all levels including supplying, preparation of bar bending schedules, cutting, bending, transporting, fixing, tieing in position with PVC coated G.I binding wire, all labour charges, cost of cover blocks in specified grade of concrete etc. complete as per specifications and drawings. Steel supplied by the contractor. Using TMT bars of specified grades all dia bars. TMT bars to be supplied by the contractor shall confirming to IS 1786. All test reports to be provided along with the supply of the materials.Tentative / suggested make for TMT bars: SAIL / RINL/ TATA or approved equivalent.

Electrical welding (6 mm Fillet) including transporting Electrical welding plant to the site etc. complete