Indira Gandhi Centre For Atomic Research Tender

Dismantling Brick work in cement mortar at all levels by manually / by mechanical means, carefully without damaging adjacent structures including stacking of serviceable materials and disposal of unserviceable materials within 50m lead all as per specifications and directed by the Engineer-in-charge.

Dismantling of RCC works at all levels by manually / by mechanical means, including cutting and stacking of steel reinforcement bars and disposal of unserviceable materials within 50m lead as per specifications and directed by the Engineer-in-charge.

Chipping, grinding and removing all the porous / loose parts, cracked, unsound/ damaged concrete upto the required sound concrete surface, exposing the rods and cleaning any foreign material including removing the rust and loose scales from the exposed reinforcement with wire and coir brushes and cleaning the entire surface by blowing compressed air and / or water jet. etc. complete. in the column, beam & slab etc., with carefully without disturbing the intact concrete and disposal of unserviceable materials within 50m lead as per specifications and directed by the Engineer-in-charge etc . complete. Note: 1. Scaffolding will be paid separately under relevant item. 2. For payment purpose face area of structural member actually chipping will be paid.

Providing anti corrosive treatment to steel reinforcement by removing the rust from corroded reinforcement and applying anti-corrosive chemicals as details below including cleaning of reinforcement from rust to give it a total rust free steel surface by using alkaline chemical rust remover with paint brush, removing loose particles after 24 hours of its application with wire brush, thoroughly washing with water and allowing it to dry, applying anticorrosive coating, etc., all complete as per manufacturer specification and as directed by Engineer-In-charge. a) Rust removal: - Removing the loose rusted particle thoroughly from the corroded reinforcement by light tapping, wire brushing and using emery paper. Applying rust converter of make 'Fosroc Reebaklens RR or Dominator plus or Bostik (Bostokleen) or FAB Chemical (Mixcoat RP)/CERA RUST CONVERTOR of CERA CHEM' . b) Anticorrosive coating: - Application of anticorrosive coating (corrosion inhibitor) of make MC Bauchemie (Zentrifix KMH) or FAB Chemical (Mixcoat ZR) or Bostik (Bostik ZRP) or Ultratech (Bindcrete)/ CERA ZINC ZR of CERA CHEM or MasterEmaco P 130. Mixing ratio of chemicals, consumption and application shall be as per manufacturer specifications.

Bars upto 12 mm diameter

Bars above 12 mm diameter

Dismantling old plaster or skirting raking out joints without disturbing structure and cleaning the surface for plaster at all levels including disposal of rubbish to the dumping ground within 50 metres lead all as per specifications and directed by the Engineer-in-charge.

Fixing of 10mm dia shear connectors/steel reinforcement in reinforced or plain cement concrete by drilling 12mm dia holes spacing as specified including power driven drill machine to a minimum depth of 75mm and upto 200mm in RCC beams, lintels, columns and slabs to introduce steel bars/ shear connectors including drilling holes, including providing and fixing the steel bars in position using epoxy resin anchor grout of CERA ANCHORSET of CERA CHEM or MasterEmaco ADH 220 or equivalent approved make, etc., all complete as directed by Engineer-In-Charge. Note : The cost of steel reinforcement used as shear connector will be paid for separately under relevant item

Providing, straightening, decoiling wherever necessary bending, cutting, binding and fixing in position steel reinforcement TMT bars of Fe500D grade steel conforming to IS:1786 'SAIL or VIZAG or approved equivalent make' and tying with approved annealed binding wire of 1.6mm dia in all reinforced cement concrete work at all lifts, including cost of supplying and fixing the spacer/cover blocks in cement mortar 1:2 and binding wire complete all as per specification and as directed by the Engineer-in-charge at all lifts. Note: The rate shall be including the cost of reinforcement steel. The reinforcement steel will be procured from dealers with a test certificate as approved by the department. For further details please see point 7 of Section VIII, General Information for Guidance of Tenderers.

Providing, fabricating and fixing of edge angles, embedded plates, J-type bolts, holding rods, or other structural requirements using 304 Stainless Steel sections plates, angles, squares, bars, rods & pipes in foundation, pedestals beams, slab & columns and other structural members of approved size and make and quality by cutting to required size, welding and fixing in position at all level and lift including all accessories as per drawing and as directed by Engineer-in-charge.

Construction of granular sub-base by providing close graded Material, mixing in a mechanical mix at OMC, carriage of mixed Material to work site, spreading in uniform layers on prepared surface and compacting with vibratory roller/earth rammer to achieve the desired density, complete as directed by the Engineer-in-Charge - for Grading-II material as per MoRT&H specifications for road and bridge works (latest)

Providing and placing in situ controlled cement concrete of grade & total minimum cementitious content as specified (cement + fly ash) for kg/Cu.m, using OPC conforming to IS 269-2015 or latest edition and with required fly ash conforming to IS 3812 Part -I / ASTM C-618 Class F. Fly ash should be blended at site such that fly ash content should not exceed 20 % by weight of total cementitious content using 20mm nominal size graded hard stone aggregate obtained from approved quarry mechanical mixing/Ready mix supply plant mixing, transporting/transporting by Transit Mixers, pumping using Concrete pumps/ placing with crane buckets etc., at all levels, lifts & all structural elements including centering and shuttering, dewatering wherever necessary, including compacting, finishing top surface to level, curing (For a period of at least 10 days), etc. complete as directed by the Engineer at levels for the items mentioned below. Coarse aggregate used should be hard granite machine crushed (with VSI technology only) graded stone aggregates with maximum size of aggregate not exceeding 20 mm size. Fine aggregate used shall be either natural river sand or crushed stone sand (with VSI technology only and shall be washed in water to remove finer particles, the micro fines particles of size less than 75 micron should be less than 7%) (Zone I / II) conforming to IS 383 – 2016 or latest edition. Note:- 1. The rate of concrete shall include all labour, equipment, charges for mixing & cost of admixture. Chemical admixture conforming to IS 9103 shall be mixed in fresh concrete and prior permission from Engineer-in-charge shall be obtained for dosage and compatibility. 2. Test certificate of cement, procured from dealer/company to be submitted for all cement related works by the Contractor. 3. The rate shall be quoted on the basis of using minimum cement per cu.m. of concrete mentioned below for relevant grade of concrete. Any upward/downward variation required to obtain the specified strength will be paid for or deducted at the rate of cement specified in Schedule F.

M20 grade with total minimum cementitious content (cement + fly ash content not exceed 20 % by weight of total cementitious content) 320kg/cum of concrete and minimum cement content of 256 Kg/cum of concrete at all levels.

Supplying and placing in situ Controlled Reinforced cement concrete of grade & total minimum cementitious content as specified (cement + fly ash) for kg/Cu. m, using OPC conforming to IS 269-2015 or latest edition and with required fly ash conforming to IS 3812 Part -I / ASTM C-618 Class F. Fly ash should be blended at site such that fly ash content should not exceed 20% by weight of total cementitious content. Coarse aggregate used should be hard granite machine crushed (with VSI technology only) graded stone aggregates with maximum size of aggregate not exceeding 20 mm size. Fine aggregate used shall be either natural river sand or crushed stone sand (with VSI technology only and should be washed in water to remove finer particles, the micro fines particles of size less than 75 micron shall be less than 7%) (Zone I /II) conforming to IS 383 – 2016. The cost includes weigh batching, required chemical admixtures, mechanical mixing/Ready mix supply plant mixing, transporting/transporting by Transit Mixers, pumping using Concrete pumps/ placing with crane buckets etc., at all levels, lifts, vibrating, consolidating, curing and finishing smooth of all exposed faces complete for column footings, columns, lintels, sunshades, gutter slabs, beams, slabs, water tank, machine foundation and all other & all structural elements including dewatering wherever necessary, including compacting, finishing, curing (For a period of at least 10 days), providing construction / contraction / expansion joints, pour strips etc. but excluding centering, shuttering and reinforcement (Formwork and reinforcement will be paid for separately) all as per specification and all as shown in drawings and as directed by the Engineer-in-charge. Rate to include all materials, labour, tools /tackles, plant and equipment, supervision, etc. complete. Note:- 1. The rate of concrete shall include all labour, equipment, charges for mixing & cost of admixture. Chemical admixture conforming to IS 9103 shall be mixed in fresh concrete and prior permission from Engineer-in-charge shall be obtained for dosage and compatibility. 2. Test certificate of cement, procured from dealer/company to be submitted for all cement related works by the Contractor. 3. The rate shall be quoted on the basis of using minimum cement per cu.m. of concrete mentioned below for relevant grade of concrete. Any upward/downward variation required to obtain the specified strength will be paid for or deducted at the rate of cement specified in Schedule F.

M30 grade with total minimum cementitious content (cement + fly ash content not exceed 20 % by weight of total cementitious content) 380kg/cum of concrete and minimum cement content of 304Kg/cum of concrete as mentioned above for the at all levels.

M45 grade with total minimum cementitious content (cement + fly ash content not exceed 20 % by weight of total cementitious content 450kg/cum concrete and minimum cement content of 360Kg/cum of concrete as mentioned above for the works at all levels.

Supplying, fabricating, erecting and fixing in position at all levels, centering and shuttering to correct line and levels including strutting, propping, etc., with necessary bracings in all axes to give a stable assembly with provision for making the joints in the shuttering fully leak proof and with provision for fixing coil nuts with tie rods along with suitable channel for lateral supports and for inserts, projecting dowels, anchor bolts or any other fixture, including staging, access and working platforms etc., all complete as specified and directed including dismantling and removing the aforesaid assembly after the concrete attains the sufficient strength to self-support itself without cracking and distortion all as per specification, including all materials and labour complete in all respects at all lifts. The measurement for the formwork will be the actual area of forms in contact with concrete surfaces. Shuttering with plywood panels alone will be permitted.

Providing and laying Micro Concrete M60 grade for Jacketing of columns / strengthening of Columns and repairs to retrofitting of RCC members / damaged RCC members using non shrink free flow required thickness of ‘'Cera Micro concrete or Fosroc Renderoc RG or approved equivalent’ products as per the manufacturer's specifications, applying epoxy resin bonding agent over the old concrete surface to receive the new concreting using CERA BOND-EP manufactured by CERA CHEM Chemical Ltd., or FOSROC or approved equivalent between old and new concrete surface, Micro concrete mixed with URP plastering of concrete members. The Micro concrete to be mechanically mixed maintaining power: water ratio strictly in accordance with manufacturers specification and as directed by Engineer In Charge.

Strengthening of RCC members with Carbon Fibre (CF) system: Providing and applying single layer 400/300 gsm Carbon Fibre (CF) wrapping of 'CERA CHEM Cera Cfr Membrane or Fosroc NITOWRAP CWS 450 or MasterBrace FIB 230/400 or approved equivalent' for the severely deteriorated RC members/portions after comprehensive repair such, such as columns, beams and stair case soffits. The application includes necessary surface preparation, such as grinding and application of compatible putty if required to remove any irregularities on the surface, then application of primer (two part epoxide resin system with 1:1 mix proportion) at 4-6 sqm/kg mix and leave it for drying (preferably 4 to 6 hours or overnight). Then one coat of saturant on the surface, pasting the dry CF cloth against the saturant. After this there will be stamping by brushes and rolling to saturate the cloth and followed by application of second coat of saturant and again repeated rolling to saturate the cloth etc., complete. The saturant shall be two part epoxide resin system with 1:1 mix proportion and coverage of 1.5-2.0 sq.m/kg. Mix the application of primer and saturant will be done by brush, etc. complete all as per manufacture specification and as directed by Engineer-in-Charge.

Providing and applying the following coatings over the external and internal surfaces like concrete surfaces, plastered wall surfaces at all locations and at all elevations using "M/s Sika / CERA or equivalent brand of similar coats (a) Primer coat: one coat of Primer of "Sikagard-552 IN Primer W" (b) Intermediate coat: Two coats of " Sikagard-545 W Elastofill" Acrylic crack-bridging intermediate protective coating (c)Top coat: 2-coats of"Sikagard-550 W IN - Anti-carbonation and crack bridging protective coating including preparing the surface, removing existing emulsion or any coat, including cost of all materials, labour, tools, tackles, equipment’s etc. complete all as directed by Engineer-in-charge and as per the specifications. Note: Scaffolding will be paid under relevant item.

Providing repair work to the concrete surfaces at all locations and at all elevations including preparing the surface, providing and applying 25mm thick polymer modified' mortar by manually as specified by Engineer-in-charge over a coat of polymer bonding agent of CERABOND EP / FOSROC / NITO BOND EP / SIKA or equivalent and cost of all materials, labour, curing for 10-days, tools, tackles, equipment’s, fuel & transport etc. complete as directed by Engineer-in-charge and as per the specifications. a) Surface preparation: Chipping and removing the existing plastered wall surfaces to the required depth and surface preparation such as removing the loose materials, dust and other laitance with wire brush and coir brush, etc. complete. b) Bonding coat on surface: Providing and applying a coat of polymer bonding agent of CERABOND EP / FOSROC / NITO BOND EP / SIKA or equivalent to the cleaned and prepared concrete surface prior to application of Polymer modified mortar. c) Polymer modified mortar: Applying polymer modified mortar 1:2:2 (1 cement: 2 sand: 2 stone Aggregate of nominal size 6mm) admixed with CERA LATEX SBR / FOSROC/ NITO BOND SBR / SIKA additive or equivalent @ 3 kg per bag of cement for a thickness of 25mm in by mechanically or manually and neatly finished as instructed over the prepared surface / over the fiber glass mesh fixed surface. Note: 1) Scaffolding will be paid in separately in the relevant item. 2) The contractor shall arrange the suitable safety arrangements for executing the work at his own cost as directed by the Engineer in charge.

Repairs to internal/ external plastering over brick work/ concrete at all locations and all lifts using Polymer modified cement repair mortar including preparing the surface by hacking the surface for better adhesion, providing glass fibre mesh or chicken reinforcement, if any required, applying bond coat, filling/plastering with polymer modified repair mortar in layers using approved polymers, curing, cleaning of floor/windows thoroughly on completion of repair work etc., all complete as detailed below as per manufacturer specifications and as directed by the Engineer- in-Charge a) Surface Preparation : Preparing the wall surface by chipping of unsound/ weak /loose plaster surface mortar with manual Chisel and/ or by mechanical means at all lifts including cutting/trimming of edges to provide firm vertical faces, making square shoulders of cavities, cleaning the exposed surface to make surface dust free, disposal of debris within 2 Km lead. b) Bond Coat: Applying SBR based bond coat of make MC Bauchemie (Naufufill-SBR) or FOSROC (Nitobond SBR) or FAB Chemical (Mixbond SBR) or Bostik (Boscocem 475) or Ultratech (Xtracrete) or approved equivalent. Mixing ratio of chemicals, consumption and application shall be as per manufacturer specifications. c) Application of repair mortar: Providing approved glass fibre mesh reinforcement with cement paste before plastering in the surface crack area. d) Application of repair mortar: Building up with polymer modified cement repair mortar of ratio 1:4 (1 part of cement : 4 parts of sand) and adding admixtures in recommended proportion of make MC Bauchemie (Naufufill- SBR) or FOSROC (Nitobond SBR) or FAB Chemical (Mixbond SBR) or Bostik (Boscocem 475) or Ultratech (Xtracrete) or approved equivalent. Mixing ratio of chemicals, consumption and application shall be as per manufacturer specifications. Note: 1) Scaffolding will be paid in separately in the relevant item. 2) The contractor shall arrange the suitable safety arrangements for executing the work at his own cost as directed by the Engineer-in-charge.

12mm average thickness - Plain plaster

20mm average thickness - Plain plaster

19mm average thickness Rough cast plaster (7 mm thick rough cast in C.M 1.3 using 6 mm and below size granite chips over 12 mm thick base coat)

Providing repair work to the surface cracks in plastered wall at all locations and at all elevations upto 20 to 30mm deep, upto 200mm using Polymer modified cement repair mortar including preparing the surface by hacking the surface for better adhesion, providing approved glass fibre mesh reinforcement, applying bond coat, filling/plastering with polymer modified repair mortar in layers using approved polymers, curing, cleaning of floor/windows thoroughly on completion of repair work etc., all complete as detailed below as per manufacturer specifications and as directed by the Engineer- in-Charge. a) Surface Preparation : Preparing the wall surface by chipping of unsound/ weak /loose plaster surface mortar with manual Chisel and/ or by mechanical means at all lifts including cutting/trimming of edges to provide firm vertical faces, making square shoulders of cavities, cleaning the exposed surface to make surface dust free, disposal of debris within 2 Km lead. b) Bond Coat: Applying SBR based bond coat of make MC Bauchemie (Naufufill-SBR) or FOSROC (Nitobond SBR) or FAB Chemical (Mixbond SBR) or Bostik (Boscocem 475) or Ultratech (Xtracrete) or approved equivalent. Mixing ratio of chemicals, consumption and application shall be as per manufacturer specifications. c) Application of repair mortar: Providing approved glass fibre mesh reinforcement with cement paste before plastering in the surface crack area. d) Building up with polymer modified cement repair mortar of ratio 1:4 (1 part of cement : 4 parts of sand) and adding admixtures in recommended proportion of make MC Bauchemie (Naufufill- SBR) or FOSROC (Nitobond SBR) or FAB Chemical (Mixbond SBR) or Bostik (Boscocem 475) or Ultratech (Xtracrete) or approved equivalent. Mixing ratio of chemicals, consumption and application shall be as per manufacturer specifications. Note: 1) Scaffolding will be paid in separately in the relevant item. 2) The contractor shall arrange the suitable safety arrangements for executing the work at his own cost as directed by the Engineer in charge.

Providing repair work to the cracks in joints between plastered wall to column/beam junctions at all locations and at all elevations upto 20 to 30mm deep, upto 200mm wide including preparing the surface, providing and filling the block work beam joints with special cementitious light-weight mortar CERA SEAL CCCP / FOSROC / NITO BOND SBR / SIKA or approved equivalent, providing and applying 20mm thick polymer modified' mortar by mechanically over a coat of polymer bonding agent of CERABOND EP / FOSROC / NITO BOND EP / SIKA or approved equivalent and cost of all materials, labour, tools, tackles, equipment’s, fuel & transport etc. complete as directed by Engineer in charge and as per the specifications. a) Surface preparation: Chipping and removing the existing plastered wall surfaces to the required depth and surface preparation such as removing the loose materials, dust and other laitance with wire brush and coir brush, etc. complete. b) Joint treatment: Grooves shall be cut along the construction joints on block work/brick work - beam / column joints and the gap shall be treated with (i) SBR Bonding coat of polymer bonding agent of CERABOND EP / FOSROC / NITO BOND EP / SIKA or equivalent and (ii) filled the gap with special cementitious light-weight mortar CERA SEAL CCCP / FOSROC / SIKA or approved equivalent c) Bonding coat on surface: Providing and applying a coat of polymer bonding agent of CERABOND EP / FOSROC / NITO BOND EP / SIKA or approved equivalent to the cleaned and prepared concrete surface prior to applying of polymer modified mortar. d) Polymer modified mortar : Applying polymer modified mortar 1:2:2 (1 cement : 2 sand: 2 stone Aggregate of nominal size 6mm) admixed with CERA LATEX SBR / FOSROC / NITO BOND SBR / SIKA additive or equivalent @ 3 kg per bag of cement for a thickness of 20mm in by mechanically or manually and neatly finished as instructed over the prepared surface / over the fiber glass mesh fixed surface. Note: 1) Scaffolding will be paid in separately in the relevant item. 2) The contractor shall arrange the suitable safety arrangements for executing the work at his own cost as directed by the Engineer in charge.

Providing and applying painting Two coats at all levels with Acrylic emulsion paint (Asian or Equivalent approved brand, colour and manufacturer) to give an even shade including one under coat of suitable primer, applying putty, preparation of the surfaces, scaffolding complete all as per specifications and as directed by the Engineer-in-charge.

Providing and applying a protective painting with Anti-Carbonation coating to the external/ internal wall surfaces (Rough cast / Plain surfaces) at all locations and at all elevations including preparing the surface, removing existing emulsion or any coat, providing and applying a single component acrylic polymer based protective coating CERA INFRAGUARD – WA / FOSROC DEKGUARD / SIKAGARD 550W Elastocolor or equivalent of a minimum of 2 coats over a primer coat with CERA INFRAGUARD – WA PRIMER / FOSROC DEKGUARD / SIKAGARD 552W Primer or equivalent and cost of all materials, labour, tools, tackles, equipment’s, fuel & transport etc. complete all as directed by Engineer-in-charge and as per the specifications. The total dry film thickness of both coats excluding primary coat should be minimum of 200 microns. Note: Scaffolding will be paid under relevant item

Providing Acid / Alkali resistant flooring and dadooing and wall cladding using 12mm thick Acid / Alkali resistant tiles of pelican or approved equivalent make as per IS:4457 including preparation of surface applying one coat of primer, application of 10mm thick mastic membrane, laying of tiles in potassium silicate based mortar of 2mm thick and pointing the joints with to a depth of 10 to 12mm with CNSL mortar etc., cleaning the surface neatly at the time of handing over the area complete all as per manufacturer’s specification and as directed by the Engineer-in-Charge. Note: (1) The sample tile shall be got approved by the Architect/Engineer before procurement. The job shall be got executed by specialists in this line. (2) The tile cladding work to be done at existing plastered wall surface and hence removing of existing painting from wall, and hacking prior to fix tiles are included in this scope of item. (3) Scaffolding will be paid separately under relevant item.

Providing and fixing PVC corner beading / nosing of approved quality and colour at the corners and edges of the ceramic tiles dadooing including finishing and embedding in the wall etc. complete all as directed by the Engineer-in-Charge.

Providing water proofing treatment to the RCC cast insitu terrace and gutters using ‘CERA WP SHIELD P4180’ 4mm thick and ‘CERA WP SHIELD SLATED’ 4mm thick as per specifications and as directed by the Engineer-in-Charge. a) The existing tarfelt, bituminous primer, WP Tiles and foam concrete, waterproofing membranes & cement based water proofing treatment, and all types of water proofing treatment shall be removed completely by cutting and peeling off from the surface and disposing the same 50m beyond the building area. b)" V" grooves shall be cut along the surface crack and the same shall be filled with cementitious non shrink grout CERA GROUT 40 of CERA / FOSROC / SIKA or equivalent after applying a lavish coat of polymer based bonding agent CERA LATEX SBR of CERA / FOSROC / SIKA. c) "V" grooves shall be cut along the construction joints on wall - slab joints and filled with cement sand mortar admixed with styrene butadian rubber based additive CERA LATEX SBR from CERA / FOSROC / SIKA or equivalent . d) The area shall be tested for any leakages by ponding of water (water holding test) before and after application of treatment in panels. (panels shall be made by least ratio of cement mortar and the same shall be thoroughly cleaned before receiving further treatment). e) When the entire surface is water-tight, dry and moisture free, one coat of bituminous primer shall be applied over surface @ 0.3 kg/sqm and 1st layer of 5 - layered, 4mm thick, polymer reinforced APP membrane WP SHIELD P4180 from CERA / FOSROC / SIKA shall be laid with 200mm overlapping by torch - on application when the primed surface is tacky and as per the manufacturer's recommendation. f) The second layer of 5 - layered, 4mm thick, polymer reinforced APP membrane WP SHIELD - SLATED from CERA / FOSROC / SIKA shall be laid with 150mm overlapping by torch - on application when the primed surface is tacky and as per the manufacturer's recommendation shall be laid in perpendicular direction to the first layer. Note: i) The treatment should be done by an agency specialised in the job having sufficient knowledge of water proofing treatment. Suggested vendors : (1) M/s. Cera-Chem Pvt. Ltd., Chemicals (2) M/s. Sika India Pvt. Ltd. Chemicals ii) Ten years guarantee shall be given by the contractor in the prescribed form of the department for the above water proofing treatment work

Providing and fixing of water proofing treatment using APP membrane in 2 layers using ‘CERA WP SHIELD P4180’ 4mm thick and ‘CERA WP SHIELD SLATED’ 4mm thick at highbay area, roof slab top, expansion joint covering, gutter and over the screed concrete area ect., as per specifications and as directed by the Engineer-in-Charge. Note: I) Cleaning of exisiting surface surface is clean, dry and moisture free, and application of one coat of bituminous primer over surface @ 0.3kg/sq.m. and 1st layer of 5-layered 4mm thick polymer reinforced APP membrane 'CERA WP SHIELD P4180' shall be laid with 100mm overlapping by torching on application when the primed surface is tacky and as per the manufacturer's recommendation. II) The second layer of 5-layered, 4mm thick, polymer reinforced APP membrane 'CERA WP SHIELD – SLATED’ shall be laid with 100mm overlapping by torch - on application when the primed surface is tacky and as per the manufacturer's recommendation shall be laid in perpendicular direction to the first layer. III) The area shall be tested for any leakages by ponding of water (water holding test) before and after application of treatment in panels. (panels shall be made by least ratio of cement mortar and the same shall be thoroughly cleaned before receiving further treatment). IV) The treatment should be done by an agency specialised in the job having sufficient knowledge of water proofing treatment. Suggested vendors : (1) M/s. Cera-Chem Pvt. Ltd., Chemicals (2) M/s. Sika India Pvt. Ltd. Chemicals

Providing on the floor area by screeding with screed concrete of M20 grade with total minimum cementitious content (cement + fly ash content not exceed 20 % by weight of total cementitious content) 320kg/cum of concrete and minimum cement content of 256 Kg/cum of concrete (shall be using 10mm down aggregate) admixed with crystalline based integral water proofing admixture CERA CRYSTALLINE INTEGRAL / Conplast / SIKA WT-215P or equivalent at the ratio specified by manufacturer recommendation to the required thickness of depending on the downtake pipes available including applying one coat bonding polymer modified mortar 1 : 2 (1 cement : 2 sand) admixed with CERA LATEX SBR / FOSROC NITO BOND SBR / SIKA additive or Equivalent at 3kg per bag of cement by manually with compressed air under pressure over the prepared surface at all locations and all the elevation as specification and as directed by Engineer-in-Charge. Note: 1) The area shall be tested for any leakages by ponding of water (water holding test) before and after application of treatment in panels. (panels shall be made by least ratio of cement mortar and the same shall be thoroughly cleaned before receiving further treatment). 2)This item shall includes placing the pumpable concrete by boom placer, concrete pump, supply of RMC concrete in Tranist mixer as directed by Engineer-in-charge if bulk quantity is required according site condition. 3)Concrete shall be placed in layers such a way that fiber glass mesh will be fixed in between layers and Fixing of fiber glass mesh shall be paid under separate item.

Supplying and fixing in all position of Alkali resistance Glass fibre mesh of Gyproc Fiber Mesh or equivalent (4-5mm square aperture or as per specified at site with 145 gsm) fixed with neat cement paste or by manufacturer recommendation for screed concrete fixed in-between the layer of screed concrete with minimum 100mm overlapping at mesh joints and as instructed by Engineer-in-charge.

Providing and constructing "L" shaped Haunching 100mm in wall and 100mm in slab of (size 100mm X 100mm), minimum 15mm thickness at edges using CM 1:3:1 using 6mm downgraded chips admixed with CERA LATEX SBR @ 1kg per 50kg (1 bag) of cement as specification and as directed by Engineer-in-Charge in roof joints, terrace corners, gutter junctions, expansion joint area etc.

Operating the Miscellaneous works for unquantified jobs likes removing & fixing doors & windows, shifting materials, cutting and removing materials etc., for department as directed Engineer-in-charge and necessary accessories will be borne by department. Note: If Job is allocated to the contractor he has to engage minimum one skilled man power like Fitter/carpenter/mason under general shift 9.00 to 17.30 hours per day for 1 unit.

Operating the Miscellaneous works for unquantified jobs likes removing & fixing doors & windows, shifting materials, cutting and removing materials etc., for department as directed Engineer-in-charge and necessary accessories will be borne by department. Note: If Job is allocated to the contractor he has to engage minimum one Un skilled man-power like helper, mazdoor, under general shift 9.00 to 17.30 hours per day for 1 unit.

Providing and constructing with approved well cured flyash brick work in cement mortar 1:5, flyash bricks are made as per IS 12894 of latest edition (flyash + crushed sand stone + Lime + additive/cement with water proofing chemicals and Accelerators) ( non modular) of class designation 5.0in superstructure at all levels and lifts in mortar in the ratio of 1:1:4 where 1 part of cement (IS 269 latest), 1 part of Fly Ash (IS 3812 latest edition) and including scaffolding, raking out joints, continuous water curing for a minimum period of 14 days from the date of construction, complete as per specifications, drawings and as directed by the Engineer-in-Charge at all levels.

for Basement and Ground Floor

For First floor and parapet wall

Providing plastering to the external surfaces of brickwork/concrete at all elevations in cement mortar 1:5 using crushed stone sand, 15mm thick including hacking of concrete surfaces with pointed tool, scaffolding, finishing, curing, forming grooves wherever necessary, all as per specifications.

Providing plastering to the external surfaces of brickwork/concrete at all elevations in cement mortar 1:5 using crushed stone sand, 20mm thick, admixed with CERA CRYSTALLINE INTEGRAL at 400gms per bag of cement or equivalent water proofing chemical as approved with ratio as per manufacturer recommendation and including hacking of concrete surfaces with pointed tool, scaffolding, finishing, curing, forming grooves wherever necessary, all as per specifications.

Providing plastering to the internal surfaces of brickwork/concrete at all elevations in cement mortar 1:5 using crushed stone sand, 12mm thick including hacking of concrete surfaces with pointed tool, scaffolding, finishing, curing, forming grooves wherever necessary, all as per specifications.

Providing and laying 25mm thick Indian patent stone flooring and skirting with cement concrete 1:2:4, using 10mm and below size hard broken granite stone jelly and crushed stone sand including dividing strips, laying in panels, consolidating, curing, rubbing the surface smooth, cleaning the surface neatly at the time of handing over the area complete all as per specifications and as directed by the Engineer-in-charge.

Conveying the surplus excavated earth & debris, boulders and spoil by mechanical means and depositing at places inside DAE installation identified as Dumping yard as per requirement with a lead specified below including loading, unloading, breaking clods, levelling all complete as per specification and as directed by the Engineer-in-charge. Note: 1) The rates in respect of this Item are applicable for the NET Quantities arrived at after making deductions for voids @ 20% in respect of soil and @ 50% in respect of Rock from the corresponding Stack / Truck measurements. 2) The earth shall be dumped well inside the Dumping yard and not over approach pathway road.

Lead charges for lead Exceeding 3 kilometre but not exceeding 4 kilometre

Providing and fixing PVC rain water downtake pipes conforming to IS:13592 Type A and PVC SWR Fittings & specials confirming to IS:14735, ‘Finolex’ or other approved equivalent make of pipes, fittings & specials including jointing with seal ring / with PVC solvent adhesive including fixing in walls/columns using clamps, anchor fasteners, bolts and teakwood packing pieces, joint testing etc .complete all as per drawings, specifications and as directed by the Engineer-in-charge.

PVC SWR Rain water pipe 110mm outer dia

PVC SWR Rain water pipe 160mm outer dia

Protective Coating over the external surface of RCC structures below ground level : Providing and applying coal tar epoxy based protective coating 'Master Protect 1812 of BASF or Fosroc Nitocot ET 550 or approed equivalent' applied in two coats for a total DFT of 300 microns with suitable brush or a roller brush (The Dry Film Thickness will be measured for a minimum thickness of 300 micron for payments). The mixed material shall have a density of 1.65Kg/Lit, adhesive bond strength of 1.50 Mpa as per ASTM D4541, abrasion resistance of 17mg/1000 cycles when tested as per ASTM D4060, CS 17 wheel and slant shear bond strength of 10 Mpa as per ASTM C882. The substrate shall be prepared by mechanically grinding using electrically operated hand held sander machines to expose all blow holes, voids and imperfections and these shall be cleaned by flushing with air and water if required to clean any oily substance and filled with suitable epoxy putty before the application of the protective coating, all complete as per the instruction of manufacturer and the Engineer in charge.f the protective coating, all complete as per the instruction of manufacturer and the Engineer in charge.

Design, submission of detailed analysis report, Supplying and erection of Ercon make or equal Pultruded Fibre Glass Staircase – 1.0 Meter wide with both side hand railing & supporting Structure of 4.73M high connecting to Landing Platform of size 1.2 Meter width x 2.85 Meter Long on 2.53 Meter level & 1.2 Meter width x 1.4Meter Long on 4.73 Meter level with S.S Base Plate as shown in the drawing. Staircase riser step 169mm height & 275mm width (Riser and tread dimension should suit the site measurements). Load bearing capacity of the grating is 500kg/sqm & handrail to meet 90kg load as per IS : 4912. and as per specification and as directed by Engineer-in-charge. Note: 1) This work has to be execute as per site condition and as per structural and pultruded Fibre Glass Staircase stair vendors / designers approved drawing. 2) SS base plate will be paid under relevant item. 3) Material test certificate (MTC) has to be submitted from approved vendor. 4) Report to be submitted from authorized vendor / designer. 5) Design should be approved by CEG, IGCAR. 6) If any design correction notified the same shall be incorporated accordingly and shall be re-submit for approval.

Providing and fixing double scaffolding system (cup lock type) on the exterior side at all height made using 40mm diameter M.S. tube spaced at 1.5m center to center at both horizontal and vertical joining with cup and lock system with M.S.tube, M.S.tube challies, M.S clamps and M.S staircase system in the scaffolding for working platform etc., including maintaining it in a serviceable condition for the required duration as approved, removing after completion of repair works, the scaffolding system shall be stiffened with bracings, runners connection with the building, etc., wherever required for essential safety features for the workmen, etc., all complete as directed by Engineer-in-charge. Note: 1) The elevational area of the scaffolding shall be measured for payment purpose. The payment will be made once irrespective of duration of scaffolding. 2) The buildings are of Ground+ 2 storeyed structure and the contractor has to observe all safety procedure while working on heights as per I.S. 3696 (Part-I) - 1987. (Safety Code for scaffolds). 3) All working platform must be of minimum 600mm wide, made of M.S pipe and must have guard rails as per specification. 4) Screen of suitable material shall be provided to the full height of scaffolding and securely tied to protect falling objects coming out during the repair work is in progress. 5) To protect workers on lower platform against falling objects from higher level overhead protection should be provided on the scaffolds. 6) Necessary aluminium/ M.S. ladder shall be provided at the cost of the contractor, to the full height of scaffolding at required location around the building to enable Departmental Supervisor/Engineer climb up and closely watch the repair work of the building.

Providing props/ jack supporting system to support existing structural elements of height specified below using adjustable pair of pipe prop Jack of dia 60mm or specified for loading capacity upto 4 M.T each prop, telescopic prop, with suitable 'U' type Stirrup header, including fixing of horizontal bracing, base plate, base jack, Telescopic Span if required and other accessories as directed by Engineer-in-charge. Note: 1. Supporting system required upto the completion of intended jobs, like retrofitting works etc., hence irrespective of duration of supporting system payment will be made only once. 2. Maximum spacing of pair of supporting jack shall be 900mm or directed by Engineer-in-charge. - Props / jack supporting system as specified for structural elements supports at upto 5.0m from ground level.

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