BARC/HLUD/ET/7/2025-2026

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

120 mm Average thickness for terraces using river sand / crushed sand

Extra over 120 mm thick cement based water proofing for providing and laying brick bat coba in roof (i) Laying brick bats with mortar using broken brick bats 25 mm to 115 mm size with 50% of cement mortar 1:4 (using crushed sand) admixed with proprietary water proofing compound as per manufacturer's specifications conforming to relevant IS and approved by Engineer-in-charge over 20 mm thick layer of C.M 1:4 (using crushed sand) to required slope complete as directed by the Engineer-in-charge. (Measurement will be over and above the average thickness of 120 mm only)

Providing and applying 3 (Three) - component cold liquid applied, UV resistant, polyester resin based membrane waterproofing system with crack-bridging capability and water vapour permeability by : (A) Surface preparation : The substrate must be dry (in concrete, the residual moisture in the upper 20mm must be < 5 %), sound and free from any material that would hinder adhesion. All surfaces must be free from gross irregularities, loose, unsound or foreign material such as dirt, ice, snow, water, grease, oil, release agents, lacquers, or any other condition that would be detrimental to adhesion of the primer and substrate. This requires careful preparation of existing horizontal and vertical substrates; cracks are filed, expansion joints are prepared, flashings are removed or modified, and termination points are determined. (B) Primer Coat : Pre-Measured Packed 2 (Two) component, solvent-free, high solids, highly penetrative, quick-cure, low VOC, high bonding Epoxy Based Primer, having excellent adhesive property to all substrates, on the clean and grinded surface. Pour Component B into Component A and mix the components for approximately 2 minutes with a clean spiral agitator on low speed without creating any bubbles or streaks and without aerating or thinning of the primer. The primer should be a uniform clear color, with no light or dark streaks present. Apply the primer evenly with roller and immediately lightly sprinkle silica sand (size 0.4 – 0.8mm) over the same. The primer should be completely dry for further application of liquid applied polyester resin based membrane. Primer exposed for more than 7days must be re-primed. The coverage of primer approx. 7.9 Sqm per 5 Kg and may depend on the smoothness and absorbency of substrate. (C) Top Coat : Pre-Measured Packed 3 (Three) component cold liquid applied waterproofing system based on Unsaturated Polyester Resin and special needle punched non woven, system compatible polyester fleece of minimum 165 GSM as reinforcement. The cold liquid applied reinforced system shall have high crack-bridging property & UV stablility with immediate rain 'proof performance. Add Catalyst powder (Component C) to waterproofing Component A and mix thoroughly for approx. 20 min. Waterproofing component B shall be stirred throughly and mixed in the ratio of 1:1 and mix thoroughly until no streaks are visible and it should be unifrom. If atmospheric temp. exceeds 25 Deg celcius then add inhibitor to component B as per manufactures specification. Applying approx. 2/3rd of the waterproofing mix material to the primed substrate uniformly and roll the Fleece with roller, removing all air bubbles and allowing an overlap of min. 50 mm. The remaining 1/3rd of the waterproofing mix material shall be poured on the surface until complete saturation of the fleece is achieved. The system is totally wet on wet surface and no time lag should be allowed during the complete laying of the system. The coverage of top coat approx. 2.5 to 3.3 Kg/Sqm depending upon the nature and condition of the substrate. 'The rate of above waterproofing system shall include the cost of all materials, labour, machinery, tools & tackles and consumables all complete as per specifications and as directed by the Engineer-in-charge. The above waterproofing system shall have following properties : 1. Tensile strength : min. 8 N/Sqmm 2. Elongation : min. 44 %. 3. Adhesive strength : min. 2 N/Sqmm 4. Crack bridging capability : upto 2mm 5. Hardness (Shore A): min.70 6. VOC Content : max. 44 gm/lit. or 3.8% Notes : 1. The Waterproofing Applicator shall provide 10 (Ten) years Leak Proof Performance warranty for the complete waterproofing work. 2. Entire builtup system will be of single waterproofing products manufacturer.

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 substr

ate 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.

Providing and Applying Kemco Pox 2K or approved equivalent for treatment to vertical wall in the following steps 1) Apply solvent free two component primer Kemco Pox 2K- at the rate of 0.25 - 0.4 kgs/m2 to the area 2) Applying 2 coats of KEMPEROL 1K or equivalent over the primed surface with nylon roller/ brush. Each coat should apply after the interval of atleast 12 Hrs., including cost of all materials, labour, machinery, tools & tackles and consumables all complete as per specifications and as directed by the Engineer-in-charge. (Total consumption for Kemperol 1 K @ 0.7 to 0.9 kgs/m2) Note : The Applicator shall provide 5 years Performance guarantee for the complete waterproofing work

Core cutting in RCC beyond 50 mm up to and including 100 mm Dia

Core cutting in RCC beyond 100 mm up to and including 150 mm Dia

Supplying , cutting to shape and fixing specified diameter UPVC pipes as per IS 4985 in RR Masonry/ RCC walls for weep holes complete all as per drawings and as specified at site.

90 mm dia UPVC Pipes

160 mm dia UPVC Pipes

Dismantling plain cement concrete manually / by mechanical means carefully without damaging adjacent structures including disposal of debris within 200 m lead as per direction of Engineer-in-charge

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

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

Cleaning the horizontal and vertical surface, chasing opening theconstruction joints, cracks, honeycombing area, etc. and groutwith low viscosity epoxy material (with hardener & resin) as permanufacturer specification, curing etc. complete and as directedby Engineer In Charge.

Providing and fixing of SS Nozzle for injection grouting as per manufacturers specifications a

nd directed of Engineer-in-charge

Grouting of Lean Cement grout mixed with Non Shrink Compound/ polymer in pre fixed nipples with High Pressure Hand Pump, removing the nipples after grouting the area and finishing the area with. approved equivalent material complete all as directed by the Project Engineer at site. (a)'Drilling Holes of 12/13mm diameter and fixing Aluminium/ PVC nipples using approved equivalent.

Grouting of Lean Cement grout mixed with Non Shrink Compound/ polymer in pre fixed nipples with High Pressure Hand Pump, removing the nipples after grouting the area and finishing the area with. approved equivalent material complete all as directed by the Project Engineer at site. (a)'Grouting (only quantity of Cement used for grouting will be measured and paid.) Contrator shall maintain Log book for consumption of Cement duly approved by Engineer in Charge .

ANTI – CORROSIVE TREATMENT: The anti-corrosive treatment involves following steps to protect the exposed reinforcement in existing RCC. First, apply a single component Rust Converter, to the exposed reinforcement to convert traces of rust into a passive layer. After 24 hours, use a wire brush to clean the reinforcement scales. Next, install embedded galvanic anodes at 500 mm intervals to prevent anode corrosion. The alkali-activated (Type 1A) anodes are made of high-purity zinc, cast around a steel tie wire with an improved cement-based mortar that has an internal pH of 14 or higher. After cleaning and preparing the concrete surface, apply a single coat of the single-component Migrating Multifunctional Corrosion Inhibitor, at a rate of 0.25 kg per square meter. It provides anodic and cathodic protection, at interface contact of steel/concrete, and by migration: by its nature, the vapor pressure of the molecules allow migration through porous concrete to reach the internal steel reinforcement, protecting and prolonging the life of the structure . Finally, coat the exposed steel reinforcement with a single-component, cementitious corrosion-inhibiting primer, preferably in two coats, as directed by the engineer in charge.

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 SFMC with 50% Quartz aggregate by weight (Only SFMC consumed alone will be measured for payment)

Roughening thoroughly entire surface area of the water tank walls etc. and removal of damaged / spalled Epoxy carefully up to the bare surface using sanders / electrically operated angle grinders / wire brushes etc complete and drying the surface by hot air blower near damp areas if required complete all as per specifications, drawings and as directed by the Engineer in charge.

Applying one coat of bonding coat to concrete surfaces / protective coats to reinforcement bars with Adhesive & Hardner as per manufacturer specifications by brush application and sprinkling of Quartz Sand when the coat is tacky etc. in the ratio 100 (Adhesive) : 60 (Hardner) pbw. Adhesive shall be a low-viscosity, crystallization-resistant epoxy resin based on bisphenol-A and modified with a reactive diluent.The Hardner shall be a low viscosity curing agent developed specifically for use in highly humid or wet application areas.

Applying one coat of primer coat between two epoxy mortar layers with Adhesive & Hardener in the ratio as per manufacturer specification by brush application. Adhesive shall be a low-viscosity, crystallization-resistant epoxy resin based on bisphenol-A and modified with a reactive diluent. The Hardner shall be a Polyamidoimidazoline (PAI). The ratio of adhesive: Hardner = 100:50 pbw. Measurement shall be made for each application required.

Preparing Epoxy repair mortar with Adhesive, Hardener, Quartz Sand no. 10. in the ratio as per manufacturer's specifications, applying the epoxy mortar on ceiling in average 3 mm thickness. Surface Preparation & bond coat will be paid under relevant items. The Adhesive shall be a medium-viscosity, unmodified epoxy resin based on bisphenol-A and Hardener shall be Polyamidoimidazoline (PAI). The ratio of Adhesive: Hardener:Quartz Sand no.10 =100:50:800/900 pbw.

Providing and applying one coat of Epoxy putty with Adhesive, Hardener & Silica powder in the ratio as per manufacturer specification including one layer Glass cloth of 100 to 110 GSM Epoxy compatible, Glass cloth fully impregnated with Epoxy putty and Hardener as per manufacturers specifications. The adhesive shall be a low-viscosity, crystallization-resistant epoxy resin based on bisphenol-A and modified with a reactive diluent and Hardener shall be a Polyamidoimidazoline (PAI).The ratio of Adhesive: Hardener:Silica Powder = 100:50:200-300.

Applying 2 coats of sealer coats using Adhesive, Hardener, Silica Flour, Flow Control Agent in the ratio as per manufacturer specifications by brush application to have even surface etc. Sealer Coat shall have the composition of : Adhesive shall be of low-viscosity, crystallization-resistant epoxy resin based on bisphenol-A and the Hardener shall be cycloaliphatic polyamine hardener. The ratio of Adhesive: Hardener:Silica Flour: Flow Control Agent = 100:45:20:5 pbw

Providing and erecting Tubular scaffolding inside the hall using H frames and MS Pipes, working platform, Access Ladders for safe working up to ceiling height. Rate to include all consumables, equipment, labour, erection and dismantling and removal of the same after the work of repair is completed. Note: Mode of measurement will be plan area of Ceiling. Scaffolding for Maximum Height 20.00 m

Replacing existing damaged rain water gratings at roof terrace with stainless steel( SS304.) dome type grating size upto 150 mm diameter downtake pipe including finishing/chamfering the mouth of the outlet so as to easily flow the rain water out of the terrace, cleaning of site and curing of the finished surface for 14 days etc. complete as directed by EIC.

Injection Grouting at leakage locations:Providing and grouting with single component Polyurethane Foam injection grout mixed at ratio of 10:1 (10 parts of Resin: 1 part accelerator) which will foam after reaction with water/ moisture, cream time <20 seconds, rise time <30 seconds, foam expansion more than 30 times.

Providing and grouting with two component Polyurethane based non- foam injection grout mixed at ratio of 2:1 (2 parts of Bas

e: 1 part Hardener) which will injected through same nozzle which gives Adhesion strength >2.5 MPa, Adhesion in wet concrete >1.5MPa, Elongation >80%.

Providing and fixing construction safety net of HDPE green Braided Knotted net of 5mm thickness with mesh size of 75 mm x 75 mm square, With inner lay mesh of Delux Mono Knitted net. Border &Tie cord rope shall be of 10 mm Polypropflene (PP) rope. The safety net to be made as per the size required at site. The cost includes all the materials , labour , ropes required for tieing / fixing at site complete.

Providing and fixing Anchor fastner 12 mm dia and 145 mm long including cost of all materials,drilling charges, hirecharges for drilling machines and Labour charges etc complete.

Providing, Supplying, Placing and tieing/ fixing Polypropflene (PP) rope of 12 mm dia Confirming IS 5175. PP rope to be placed as intermediate horizondal supports and from roof beams. The cost includes material cost, tieing the ends with proper material & method, labour charges etc. all as directed at site.

Carrying out Civil Engineering works like surveying & leveling, checking of formwork fabrication, reinforcement fabrication as per drawings, witnessing sample retrieval & testing for various construction materials, ensuring concrete ingredient ratio at batching plant and pouring of appropriategrade of concrete in plain and reinforced concrete works, ensuring proper mixing of approved ingredients & waterproofing admixtures for mortars and brickwork, plaster, flooring & waterproofing works, and other civil & PH works including supervision of construction safety as per BARC specifications & relevant documentation, compiling, binding and preparation of tender documents & Agreements overall as directed by Engineer-in-Charge. Note : (1)Each Job shall be carried out by one qualified Degree holder with 2 (Two ) years experience/Diploma holder with 5(Five) years experience (Licentiate in Civil/Construction Engineering / Technology) conducted by Board of Technical Examinations / University/ Autonomous Govt / Govt recognized Polytechnic/ Institute. (2)Deployment: The contractor shall deploy one Engineer for each job for minimum 26 working days per month for minimum 8 ½ hours per day with 30 minutes of break, in General (Ist / IInd) or on Round the clock shift including Saturdays, Sundays & holidays whenever necessary as per the discretion of the Engineer-in-Charge during the contract period. In case of emergency works like continuous pouring of concrete or shutdown/maintainance work, the person will have to stay longer occasionally as per the instruction of the Engineer in-charge. No additional payment will be made on this account.(3) Period of work: The contractor shall carry out number of Jobs per month as per requirement at site for the period mentioned in NIT.(4) Mode of measurement : Measurement will be per job basis. A single job shall be carried out by deploying one engineer exclusively for the particular job.(5) Engineer should be engaged after scrutiny by EIC of CED, BARC and approved by Competent authority and the deployed Engineer will report to BARC Engineer/ EIC. (6) The minimum notice period before change of engineer is 1 (one) month; failing which a compensation, for not providing technical support, of Rs. 1,623/- per day of shortfall in notice period will be levied on the contractor

Carrying out Civil Engineering works like surveying & leveling, checking of formwork fabrication, reinforcement fabrication as per drawings, witnessing sample retrieval & testing for various construction materials, ensuring concrete ingredient ratio at batching plant and pouring of appropriate grade of concrete in plain and reinforced concrete works, ensuring proper mixing of approved ingredients & waterproofing admixtures for mortars and brickwork, plaster, flooring & waterproofing works, and other civil & PH works including supervision of construction safety as per BARC specifications & relevant documentation, compiling, binding and preparation of tender documents & Agreements overall as directed by Engineer-in-Charge. Note : (1)Each Job shall be carried out by one qualified Technician having minimum SSC or Trade certificate in Masonary/Plumber/Carpenter/Painter Trade of less than one year duration from ITI/Government Recognised Vocational Training Institute. (2)Deployment: The contractor shall deploy one Technician for each job for minimum 8 ½ hours per day with 30 minutes of break, in General (Ist / IInd) or on Round the clock shift including Saturdays, Sundays & holidays whenever necessary as per the discretion of the Engineer-in-Charge during the contract period. In case of emergency works like continuous pouring of concrete or shutdown/maintainance work, the technician will have to stay longer occasionally as per the instruction of the Engineer in-charge. No additional payment will be made on this account. (3) Period of work: The contractor shall carry out number of Jobs per month as per requirement at site for the period mentioned in NIT. (4) Mode of measurement : Measurement will be per job basis. A single job shall be carried out by deploying one Technician exclusively for the particular job. (5) The Technician should be engaged after scrutiny by EIC of CED, BARC and approved by Competent authority and the deployed Technician will report to BARC Engineer/ EIC. (6) The minimum notice period before change of technician is 1 (One) month; failing which a compensation, for not providing technical support, of Rs. 1196/- per day of shortfall in notice period will be levied on the contractor.