External Painting, Structural Repairs, External Plastering and other Miscellaneous works at New Engineering Halls 9,10,11, MSRs, Service Building for New Engineering Halls and other buildings at North Site, BARC, Trombay, Mumbai.

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. The elevational area of the scaffolding shall be measured for payment purposes. The payment shall be made once irrespective of duration of scaffolding

Providing and repairing to external plastering in cement mortar 1:4 (using crushed sand)of thickness 12mm to 20mm in patches of area upto 2.5sqmetres including cutting the patch in proper shape, raking out joints and preparing and plastering the surface of the walls including admixtured with approved Waterproofing compound @2%by weight of cement used and as per manufacturer's specifications, sieving of sand to required fineness complete including disposal of rubbish to the dumping ground within 50 metres lead

Providing, applying one coat of acrylic based textured plaster of approved make with the finish as directed with average thickness of 2.50mm and finished with 2 coats of high performance coating of approved shade including preparation of the surfaces, complete as per specifications and as directed by the Engineer-in-charge.

Providing and painting old walls TWO coats on existing cement paint surface applied with fine textured exterior paint of approved make, required shade, including preparation of the surfaces, scaffolding complete as per specifications and as directed by theEngineer-in-charge (In plain plastered/sandface plastered/concrete surfaces)

Painting (two coats) on rainwater, soil, waste and vent pipes and fittings with black anticorrosive bitumastic paint of approved brand and manufacture over and including a priming coat of readymixed zinc chromate yellow primer, including preparation of the surfaces, scaffolding complete.

Providing and Painting two coats of synthetic enamel paint on steel surfaces of approved brand 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 Engineer-in-charge

Lead charges for lead Exceeding 2 KM but not exceeding 3 KM, by mechanical transport including loading, unloading, stacking / levelling etc. The rate is applicable for the NET Quantity arrived at after making deductions for voids @ 30% in respect of debris from the corresponding STACK / TRUCK measurements. For Debris

Structural repairs works with pre-packed dual shrinkage controlled (volume stable in wet & hardened state), single-component ready-to-use, structural grade high build, alkali-resistant, fibrereinforced, thixotropic polymer modified repair mortar having excellent bond strength to old damaged concrete structures / surfaces by the following process: 1) Removal of loose/spalled or damaged concrete by chipping and cleaning the concrete surface to open up to 20mm behind the reinforcement steel with wire brush and with clean water including removal of dirt, paint, wax, oil, grease, laitance, foreign substances, etc.Mechanically profile and prepare concrete surfaces by abrasive blasting, waterjetting or other engineer approved methods 2) Cleaning the rebars with Acetone for complete rust removal and washing with water to make the surface clean. Ensure that the concrete substrate and ambient temperatures are between (10°C and 35°C) before application 3) Applying protective coat / bond coat using Styrene Butadiene Rubber (SBR) polymer and cement in the proportion of 1: 1 (1 part of polymer : 1 parts of cement). 4) Mixing full 25 Kg bag with clean potable water in water to product ratio of 0.12 to 0.18), mixed by heavy-duty slow speed (300 to 600 rpm) drill with spiral mixing paddle or forced action pan mixer pan for 3 minutes to achieve uniform lump free mortar consistency. 5) Applying polymer modified mortar with trowel & float. The polymer modified mortar shall have the following properties/technical parameters:(A) Properties / technical parameters of pre-packed Polymer Modified Mortar:i) Compressive strength 1 day: Min. 20 MPa   (as per BS:6319 : Part 2) ii) Compressive strength 7 days: Min. 35 MPa   (as per BS:6319 : Part 2) iii) Compressive strength 28 days: Min. 45 MPa   (as per BS:6319 : Part 2) iv) Flexural strength in 28 days:  Min. 7 Mpa (as per BS:6319 : Part 3) v) Tensile strength in 28 days:  Min. 2.5 MPa (as per BS:6319 : Part 7) vi) Bond strength: Min. 5 MPa (as per ASTM : C881) vii) Water permeability: less than 1% (as per ASTM : C881) viii) Drying shrinkage in 28 days: less than 1000 microstrain (as per ASTM C 157-93) ix) Potential Alkali Reactivity - : <0.1% Expansion % ( ASTM C1260)(B) Properties / technical parameters of SBR polymer bond coat material: "i) Meets the requirements of BS 6319 part 2:1983 & ASTM C 190-85 standards ii) Total solids % by mass at 105oC: 38 + 1 iii) pH value: 7.5 to 9.5iv) Specific gravity at 27.5oC: 1 to 1.05 v) Coverage: 4.2 - 4.5 sq.m/kg per coat" Notes:- (a)Placing and finishing the same with trowel / hand packing carefully compacting the same around the rebars and finishing to bring it in line with existing concrete surface on the beams, slabs, columns, etc. (b)  If thickness of repair exceeds 20mm , after every 20 mm thick repair, bond coat as per process no. (3) mentioned above in the BOQ item, to be applied and further thickness of repair to be continued for each layer. (c) The surface preparation & method of application shall be as per manufacturer's technical data sheet. (d) The double tubular steel scaffolding will be paid separately in relevant item. (e) Sampling and testing of cube specimen for compressive strength test shall be as per BS 6319 - Part-2.Other tests mentioned above shall be carried out if required as per the direction of the EIC and the cost of which shall be deemed to be included in the quoted rate (f) For each batch of mortar mixed,  following records, i.e Quantity of mortar (kg) mixed,  Amount of water added to the mix,  Location of application and the area covered.(g) Payment will be paid on the basis of actual consumption of PMM & Reinforcement will be paid in the relevant item.(h) Curing like mist spraying the surface with water or using damp burlap or hessian cloth shall be done. Replacement of old rebars in case of reduction in diamter shall be done in consultation with EIC before applying repair mortar (i) Safety Precuations:- Use wear tight-fitting, dust-resistant, chemical splash goggles and dust respirator, if airborne dust is generated, wear protective rubber hand gloves, wear appropriate clothing to prevent any possibility of skin contact. The above item of work is inclusive of all materials, labour, machinery, tools & tackels, consumables, trasportation, loading & unloading, safety PPEs etc. all complete as directed by Engineer-in-charge at site using approved pre-packed polymer modified mortar suitable for structural repair works.

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. Notes : (1) Each Job shall be carried out by one qualified Technician having minimum SSC with Trade certificate in Masonry/Plumber/Carpenter/Painter Trade of not less than one year duration from ITI/Government Recognised Vocational Training Institute or experienced Technician retired from Government service. (2) Deployment: The contractor shall deploy one Technician for each job as Single Day work for 6 working days per week 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 day as directed by Engineer-in -Charge. (4) Mode of measurement : Measurement will be per job basis per day. 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. 1249/- 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 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. 1,579/- per day of shortfall in notice period will be levied on the contractor.