Chemical based waterproofing treatment to the terraces of Canteen, Lift Machine rooms, Overhead Water tanks, etc. and other ancillary civil works at Mod. Lab. Building, North Site, BARC, Trombay, Mumbai.

Amount

Important Notes : 1. Tenderers are advised to visit the site of work with prior permission of Engineer- in- Charge/ authorised representative to acquaint themselves with the nature and location of work before quoting tender. 2. 'Since the work is to be carried out in Mod Lab buildings which are occupied by various research laboratories with large occupants etc. the work shall be carried out with least disturbance to the occupants. 3. 'During execution of work all labourers, supervisors & engineers of contractors shall use personal protective equipments. Work execution without PPE's shall not be permited. BARC construction safety manual shall be followed during execution of works. 4. 'Any work activity shall be started at site with prior work permit issued by departmental safety officer/Engineer/Supervisor. 5. 'No debris shall be left over during the repair works under each item on any day. An area for 'Debris' will be identified on the request of contractor for collection of debris generated on day to day basis.

Dismantling old plaster / skirting carefully , raking out joints and cleaning the surface for plaster including disposal of rubbish to the dumping ground within 100 m lead

Dismantling brick bat coba cement based water proofing over roof and chajjas carefully without damaging adjacent structures including lowering and stacking of materials and dispoal of unserviceable materials within 200 m lead as per direction of Engineer-in-charge

Dismantling G.I pipes of all diameter external work including excavation and refilling trenches after taking out pipes manually / by mechanical means including stacking of pipes within 100 m lead as per direction of Engineer-in-charge

Demolishing C.C / R.C.C works by mechanical means and stock piling at designated locations carefully with out damaging adjacent structures and disposal of dismantled materials up to a lead of 100 m, stacking serviceable and unserviceable materials separately including cutting reinforcement bars all as directed at site.

Dismantling brick work in Cement Mortar carefully with out damaging adjuscent structures including stacking of materials and disposal of unserviceable materials within 100m lead as per direction of Engineer-in-charge.

Dismantling Aluminium / Gypsum partitions, doors, windows, fixed glazing and false ceiling including disposal of unserviceable surplaus material and stacking of serviceable materials within 100 m lead as directed by the Engineer-in-charge

Lead charges for lead Exceeding 2 KM but not exceeding 3 KM, by mechanical transport including loading, unloading, stacking / levelling etc. - Debris Note: The rates in respect of this item are applicable for NET Quantities arrived at after making deduction for voids @ 30% in respect of debris from corresponding STACK / TRUCK Measurement.

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 positioncomplete as per specifications and drawings and as directed by the Engineer in charge.

Preparing the existing water proofing by making it slightly rough by grinding the same by mechanical means and cleaning the surface, removal of polycon net etc. and to make it free from all unwanted dust, loose material and other contaminants that may damage the water proofing treatment complete as directed by the Engineer-in-charge

Providing and fixing of SS Nozzle for injection grouting as per manufacturers specifications and directed of Engineer-in-charge.

Cleaning the horizontal and vertical surface, chasing opening the construction joints, cracks, honeycombing area, etc and grout with low viscosity epoxy material (with hardener & resin) as per manufacturer specification, curing etc. complete and as directed by Engineer In Charge. Note : Tentative / suggested make for guidance of the bidder(s): M/s. Pidilite/Fosroc/BASF or equivalent make

Providing structural Repairs in Old Damaged concrete structures / surfaces with approved Polymer with following operations : 1) Removal of loose/Spaled or damaged concrete by chipping and cleaning the concrete suface and Reinforcement steel with wire brush and with water jet. 2) Cleaning the Re bars with Acetone for complete Rust removal and washing with water jet to make the surface free from Acid content. 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 20 mm, after every 20 mm thick bond coat as per 2 above to be applied before continuing further structural repair works. This work is inclusive of all materials, labour, scaffolding 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 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

Using SFMC with 50% Quartz aggregate by weight Note : Only SFMC consumed alone will be measured for payment.

Providing and laying in position cement concrete of 1:2:4 (1 cement, 2 crushed sand, 4 graded stone aggregate of nominal size 20 mm) including consolidation, finishing, curing etc. complete as per specification and drawings but excluding the cost of Formwork shuttering, centering and steel reinforcement at all Levels.

Providing and laying in position Reinforced Cement Concrete (RCC) of grade M-30 using 20mm maximum size aggregates and crushed sand of approved quality including admixtures of approved brand and quality (plasticiser or super plasticiser) if required, including weigh batching, mechanical mixing, transporting, placing, vibrating, consolidation, finishing, curing etc. complete but excluding the cost of centering, shuttering and reinforcement complete as per specifications. Up to Plinth Level

Providing and laying in position Reinforced Cement Concrete (RCC) of grade M-30 using 20mm maximum size aggregates and crushed sand of approved quality including admixtures of approved brand and quality (plasticiser or super plasticiser) if required, including weigh batching, mechanical mixing, transporting, placing, vibrating, consolidation, finishing, curing etc. complete but excluding the cost of centering, shuttering and reinforcement complete as per specifications. In super structure up to 20.00 metre height

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 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 confirming to IS:1786.

Providing Structural steel work using angles, channels, joists and other sections, welded and / or bolted in built up sections for trusses , structural steel floors, frame works, 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

Up to and including 300 mm Joists, 350 mm channels, and below sections using materials confirming to IS:2062. All test reports to be provided along with the supply of the materials. Notes: 1. Structural steel confirming to IS 2062 shall be supplied. 2. Welding weights, connections, bolts and nuts shall not be measured for payment but the cost of which shall be deemed to have been included in the rates. 3. Welding Electrodes manufactured by M/s. Advani Oerlicon / ESAB India & D&H of specified suitable grade or equivalent make shall be used. 4. Holes to be drilled only by Drilling machines and gas cutting of holes are not permitted. 5. Rate inclusive of all consumables like GAS, welding electrodes and tools and tackles etc.

Providing and constructing brick work in cement mortar using Standard bricks of approved quality / class, make / brand in super structure above plinth up to Floor-II level in all shapes and sizes including curing, raking out joints complete as per specifications and as directed by the Engineer-in-charge

Brickwork in super structure with standard bricks in C.M 1:4 using crushed Sand

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.

Extra over for cement punning for all types of mixes complete all as per specifications and as directed

Grading roof for water proofing treatment with concrete / cement mortar as specified to obtain proper slope all as directed by the Project engineer.By using Cement Mortar 1:3 using 100% Manufactured sand.

Extra over for providing and mixing waterproofing compound added @2% by weight of cement or in the proportion by the manufacturer

Providing cement based waterproofing treatment to new terraces / chajjas including cleaning the concrete surfaces, giving injections to the top slab as required with cement & approved waterproofing compound solution to fill up all inherent holes, voids honey-combs etc. in the concrete slab, setting "autoclaved aerated light weight block bats" coba in waterproof mortar 1:4 (using crushed sand) with necessary gradient for easy flow of water, complete as per specifications and as directed by the Engineer-in-charge.

Providing and applying cementitious based crystalline waterproofing system : (i) Cleaning the Surface with wire brush, high pressure water jet to remove dust, dirt etc. (ii) All Honeycombs/ loose concrete shall be treated using low-shrink cement mortar. The construction joints shall be chased open and filled with high strength polymer mortar and to be grouted with cement slurry by fixing PVC nozzles at distance of 2m c/c. (iii) Applying cementitious based crystalline slurry in two coats on Raft, Retaining wall or RCC structural member from Inside (negative side) and on terrace slabs from outside in order to form insoluble gel crystals that penetrate deep into the concrete to permanently block the capillaries and minor cracks up to 0.3mm width. The Crystalline cementitious waterproofing treatment shall remain water- resistant even under pressure when tested in accordance to DIN 1048 and at the same time allow the concrete to “breathe” by allowing the passage of water vapor out of the structure. Note :- Tentative /suggested make for the guidance of the bidder(s) - M/s Tremco India Pvt Ltd / FOSROC / PIDILITE or Equivalent make.

Filling the gap between aluminium frame /section, granite, glass/ACP joint by providing weather silicon sealant over backer rod of approved quality as per direction of Engineer-in-charge complete.

Providing and applying cold liquid Polyurethane waterproofing system having following layers: (a) Primer / base coat: Providing and applying (Pre-Measured Packed) silver grey coloured 2 (two) component solvent free, odourless, Epoxy-based Primer with excellent adhesive property on the clean and grinded surface/substrate. The substrate can be slightly moist (in concrete, the moisture must be less than 20 %), sound and free from any material that would hinder good adhesion. Mix component 'A' into component 'B' in ratio of 1: 0.16 by weight thoroughly with a clean stirring stick. The mixture should be of uniform colour & free from streaks and be applied evenly with roller. The primer should be completely dry for further application of liquid applied polyurethane based membrane/ coating. The consumption, depending on the nature and condition of the substrate for priming, should be within the range of 250 – 400 gm/sq.m. The rate shall including cost of all material, labour, tools & plants, consumables etc. complete all as directed by EIC. (b) Top coat: Providing and applying cold liquid applied waterproofing based on highly flexible solvent free single component Polyurethane system and special needle punched non woven, system compatible polyester fleece of minimum 120 GSM as reinforcement. The cold liquid applied reinforced system shall have high crack bridging property and shall be UV stable, solvent-free, Cool Roof system. Application procedure: (i) Stir the material well before use. (ii) 2/3rd of the waterproofing mix material to be applied on the primed substrate and the special polyester fleece of min. 120 gsm to be rolled with roller including removal of air bubbles with an overlap of min. 5 cm. (iii) The remaining 1/3rd of the waterproofing material to be poured onto the surface until complete saturation is achieved. The layers should be applied on wet surface of earlier coat and there should not be any time lag during the laying of the system. (iv) After curing, one coat of material approx. 300g/sq.m. to be applied after 24 hours. (v) The total system of waterproofing for material and components shall be procured from single manufacturer. (vi) The total thickness achieved from the application should be from 1.4 to 1.7 mm. (vii) The total consumption of mix waterproofing depending on the nature, porosity and condition of the substrate should be in the range of 2.3 to 2.7 kg/sq.m. The rate shall including cost of all material, labour, tools & plants, consumables etc. complete all as directed by EIC. Specifications/Technical Parameters: The tensile strength of the membrane shall be min. 8.60 N/sq.mm and Elongation at break with fleece shall be min. 83.0 % (with fleece). The Tear Resistance of the membrane shall be min. 41.0 N/mm, Solar Reflection Index (SRI) Value of membrane shall be min. 100, Degree of solar reflectance of the membrane shall be min. 85% and adhesive strength shall be min. 2.40 N/sq.mm. etc. Note : The contractor shall provide min. 10 (ten) years Leak Proof Performance warranty for the complete waterproofing work. Tentative / suggested make for the guidance of bidder(s): Kemperol 1K system of M/s Kemper System Pvt. Ltd. or equivalent .

Providing Marble work using marble (Polished and machine cut) of thickness 15-17 mm for wall lining (Veneer work) in C.M 1:3 (using crushed sand) including pointing with white cement mortar 1:2 (Using Marble dust) with an admixture of pigment to match the marble shade to be secured to the backing by means of cramps, all as per specifications and as directed by the Engineer-in-charge. Note :- Tentative /suggested make for the guidance of the bidder(s) : Raj Nager Plain White Marble or equivalent make

Providing and painting walls with (Two coats) of approved shade of high build protective , elastomeric water proof exterior grade paint of approved make of required shade, minimium dry film thickness of 250 microns acheived in two or more coats / as per manudacturer's specifications including preparation of the surfaces by scrapping / wire brush , scaffolding complete. Primer coat will be with approved make with water in ratio of 1:2 and 2 coats of finishing coat without water all as directed by Engineer-in-charge.

Providing and Painting with Epoxy PU paint using 2 coats of (120 Micron dry film thickness) Epoxy PU high build coating as finishing coat over a priming coat of primer of 50 micron thickness over steel/aluminum surfaces by spray at all locations prepared and applied as per manufacturer' specifications including preparation of surface by cleaning with wire brush and rubbing, scraping , applying sand paper , making free of Rust, dust, dirt etc. filling the holes, joint, cracks if any using epoxy putty complete. all as per manufacturers technical data and as directed at site to achieve minimum overall dry Film thickness of 170 micron (50 Micron primer Coat + 120 micron finishing Coat). On STEEL /Aluminium surfaces. Note :- Tentative /suggested make for the guidance of the bidder(s) : M/s. EPILUX-13 High Build primer

Internal Waterproofing Treatment: Providing and applying 2 coats of Polyurethane resin based solvent free, thixotropic coating after mixing the two components. It shall be applied in two coats by roller only @ 1.4 kg/sq.m. (0.5 kg/sq.m. in 1st coat and remaining in 2nd coat). 2nd coat shall be applied in between 6 to 24 hrs of completion of 1st coat. The coating shall have solids content of 100%, Elongation of 100% & Tensile Strength >10Mpa as per ASTM D412, Hardness >40 as per ASTM D 2240, Hydrostatic Pressure resistance of 5bar as per EN12390, Adhesion to concrete >1.5Mpa as per ASTM D7234 and Water Absorption <0.5 % as per ASTM D570, Certified by CFTRI as per 21 CFR 175 – 300 of US – FDA for potable water contact all as per manufacturers' specification, etc, complete. The system includes base preparation of cleaning, brushing and removal of flacky materials,injection grouting at all construction joint areas with cement slurry admixed with positive expansive additive, proper coving between slab and wall junctions using polymer modified mortar and priming the surface with water based primer at 200 grams/Sqm, followed by the application of waterproof coating. Notes : 1. The water proofing treatment is to be Guaranteed for bone dry condition for a period of 10 (Ten) years. 2. Mode of measurement will be actual area treated. Note: Tentative / suggested make for guidance of the bidder(s): M/s Dr. Fixit TankPro W make or equivalent

Providing.supplying, fabricating and fixing 500mm long S.S. pipe sleeves using schedule 40 stainless steel 304 pipes with puddle flange of specified size made of 6 mm thick S S plate and pipe threaded at one end/ both end as specified rmbedding in the concrete for water tanks etc. All as per drawings and specifications and as directed by the project Engineer.

50mm n/b with S S puddled flange of 150mmx150mm and 80mm n/b with 200mmx200mm puddle flange and other sections as required at site.

Providing and fixing 304 grade Stainless Steel pipes/Plates of approved size and make and quality by welding, mirror / matt polishing, fixing at site etc. for balcony railing & staircases railing including special sections as per drawings, specifications. complete as directed by the Engineer-in-charge

Providing, laying, jointing, fixing and testing heavy quality (ISI Marked C-Class - IS :1239) Galvanised Iron pipes and ISI marked fittings like, tees, elbows, bends, unions, nipples,reducers etc. as required for the work, including testing the pipes and fittings for 10.00 Kg / Sq.Cm hydralic pressure with a minimum period of two hours duration with clean water, including cutting , threading, jointing with hemp yarn, white lead, jointing teflon tape, chasing walls and making good by filling with concrete 1:3:6, complete all as per specifications and drawings, including two coats of anti corrosive bitumastic paint, all as directed by the Engineer-in-charge. Pipes with ISI marked 'C' -Class heavy quality pipes of approved make. Note : Tentative / suggested make for guidance of the bidder(s): M/s TATA make or equivalent for galvanised pipe material.

25 mm dia G.I pipe

50 mm dia G.I pipe

80 mm dia G.I pipe

Providing & fixing in position heavy duty butterfly valve with Wafer type, without lugs suitable for clamping between flanges as per ANSI B16.1 etc of approved brand or equivalent conforming to IS:13095 including testing for 10kg/cm2 pressure with clean and potable water with a minimum testing duration of two hours etc. as per specification.

For 80mm dia pipeline

Providing & fixing in position heavy pattern screw down gun metal gate valve with handles and wheels of approved make including testing for 10Kg/cm2 pressure with clean and potable water with a minimum testing duration of two hours etc.as per specification and as directed by the Engineer-in-charge.

25 mm dia G.I pipe

50 mm dia G.I pipe

80 mm dia G.I pipe

Providing and fixing double tubular scaffolding system using H- frames 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. Notes : 1. The elevational area of the scaffolding shall be measured for payment purposes. 2. The payment shall be made once irrespective of duration of scaffolding.

Supplying man power along with necessary plans, spades, shavels, punjas, ropes, small spacial spades, rain coats etc, minimum two labours per day and maximum any number of labour as and when decided by Project Engineer to work for eight hours per day to carryout the cleaning work, loading work etc as directed by Project Engineer.

Providing and fixing Anchor fastner HST stud type including drilling in concrete as per requirement for fixing Eps or other structures all as specified by the manufacturer complete all as per specifications and drawings and as directed by EIC. HST stud type M-12X115 mm long Note : Tentative / suggested make for guidance of the bidder(s): M/s HILTI System make or equivalent for Anchor Fastener material.

Providing and painting anti-corrosive self primimg coating on metallic surfaces / structures. The paint shall be resistant to UV / ⁠Chemical attack /⁠ Abrasion / ⁠Oxidation / ⁠High temperature. The recommended DFT shall be 80 to 100 microns achieved in 2 to 3 coats as per manufacturers specifications including preparation of the surfaces by scrapping / wire brush, scaffolding complete. The application of the painting shall be through spray/roller & completely as per manufacturers specifications & as directed by Engineer in charge. Note : Tentative / suggested make for guidance of the bidder(s): MRO 3013S-HT KOTE SG 300 or equivalent make

Providing and applying wall painting two coats on new work with premium plastic emulsion paint of approved brand to give an even shade, including a coat of approved cement primer, including preparation of the surfaces, scaffolding complete. as per specifications and as directed by the Engineer-in-charge