REPAIR AND REHABILITATION OF RCC MEMBER AND CONNECTED WORK TO SAILORS AND MARRIED ACCOMODATION (POCKET B) AT INS MANDOVI UNDER GE (P) NAVY MANDOVI

Amount

Taking down cement plaster of stone /Pcc block /brick wall / top of chajja, or concrete surface of any description including raking out joints hacking for key securing down with water etc and removalof debris to outside of INS Mandovi Area including filling of open joints in cement mortar 1:6 complete all as specified and directed

M & L for dubbing out with CM 1:4 with ready mix plaster of approved make average 15mm thick on irregular face of walls complete all as specified and directed

Demolition of brickwork built in cement mortar including disposal of debris, etc outside MD land, complete all as specified and directed.

M&L for brick work with sub class B old size bricks and of class designation 35 (min, compresive strength 35 Kg/sq cm) straight or curved on plan exc. 6mtr mean radius, built in cement mortar 1:6, complete all as specified and directed.

M&L for Brickwork with sub- class ‘B’ bricks, straight or curved on plan to any radius in half brick thick walls built in CM 1:4 complete all as specified and directed.

M & L for Precast cement concrete block masonary with solid blocks type C1 1:3: 6 set in cement mortar 1:6 (20mm graded aggregate) exc 10cm in width and setting in mortar complete all as specified and as directed.

M & L for cement plaster 20 mm thick in CM 1:4, two coats using factory manufactured pre mix/ready mix of M/sUltratech Cement Lt or other approved equivalent make, having minimum composition of C:S :: 1:4 using fully treated dry, well graded natural sand conforming to IS 383 suitable for external plastering, having low rebound properties, low water demand for curing properties, mechnIcal mixing with water in a metalic tray only to make good consistency as per the specification of the Manufacturer and applied over exterior masonry and concrete surfaces with base coat of 15 mm thick and finishing coat of 5 mm thick final rendering,including using richer mix for making corners if necessary, including water proffing powder at 3 % of cement at all floors and level, including making grooves of existing size wherever required, including providing chicken wiremesh 100mm x 100mm size at RCC & brick in joints , including cleaning the surfaces, curing etc. complete all as per specifications & as directed by the EIC note: water proofing powder will be measured and paid seperately

M&L for rendering 10 mm thick using factory manufactured pre mix/ready mix plaster M/s Ultratech Cement Ltd' or other approved equivalent make, having minimum composition of C:S : 1:6 using fully treated dry, well graded natural sand confirming to IS 383 suitable for plastering, having low rebound properties, low water demand for curing properties mechanical mixing with water in a metallic tray only to make good consistency as per the specification of the Manufacturer and applied over masonry and concrete surfaces, including providing chicken wiremesh 100mm x 100mm size at RCC & brick in joints, including cleaning the surfaces, curing etc. complete all as specified & directed by Engineer-in-Charge

M&L for rendering 5 mm thick on ceiling using factory manufactured pre mix/ready mix plaster M/s Ultratech Cement Ltd' or other approved equivalent make, having minimum composition of C:S : 1:3 using fully treated dry, well graded natural sand confirming to IS 383 suitable for plastering in ceiling, having low rebound properties, low water demand for curing properties mechanical mixing with water in a metallic tray only to make good consistency as per the specification of the Manufacturer and applied over concrete surfaces, including providing chicken wiremesh 100mm x 100mm size at RCC & brick in joints, including cleaning the surfaces, curing etc. complete all as specified & directed by Engineer-in-Charge .

Removing plant/growth including its roots upto 1.00m of plant height at any location/at any storey and of any description and treating the surfaces with Acid (HCL) and making good surfaces with cement mortar 1:4, complete all as specified and directed.

Opening the Separation Cracks at theJunction of RCC and Masonry where ever directed and instructed into‘’V’’Grooves2’’ to 3’’ from the either side of the cracks by carefully marking the areas to be opened up using a Cutting machine and skillfully /carefully Chiseling with a well sharpened chisel and hammer as directed including Wire brushing and washing of concrete Substrata and masonry walls with water jet to the surfaces thus prepared to the entire satisfaction of the Engineer-in-charge

Moistening the Cracks, Providing and applying priming/bonding coat of slurry made out of “PolyalkEP”andcement (orequivalentasspecifiedintheListofBrandnames) in proportion1:1 to surfaces prepared as instructed and directed.Filling the Cracks/Grooves by Providing and applying “PolyalkEP” ready mix Polymer modified cement mortar (or equivalent asspecified in the ListofBrandnames) in Proportionof1:5:15 (Polyalk EP:Cement:Gradedsand/quartzsand) on the prepared surfaces and finishing it in level with the existing plaster Including Handpacking, curing and making the surface similar to the external plastering using wooden floats/punch etc. complete as per specified and directed.

Demolition and breaking up of 100mm PVC pipe

Demolition and breaking up of 75mm PVC pipe

Demolition and breaking up of 160mm to 200mm PVC pipe

S&F PVC (SWR) pipes 160 mm single socketed, in any length with rubber ring joints, laid in trenches or in floors

S&F PVC (SWR) pipes 110 mm single socketed in any length with rubber ring joints,fixed to walls

S&F PVC (SWR) pipes 75 mm single socketed in any length with rubber ring joints,fixed to walls

S& F PVC (SWR) bends any radius 110 mm bore with access door

S& F PVC (SWR) bends any radius 75 mm bore with access door

S&F PVC (SWR) branch piece, single (single Y) equal or unequal of dia 110mm with access door

S&F PVC (SWR) branch piece, single (single Y) equal or unequal of dia 75mm with access door

S&F PVC (SWR) branch piece, double (double Y) equal or unequal of dia 110mm with access door

S&F PVC (SWR) branch piece, double (double Y) equal or unequal of dia 75mm with access door

Demolition of cement concrete of any description in any position not otherwise specifically provided for

M&L Cement concrete type B-0, 1:2:4 (12.5mm graded aggregate), 25mm thick on concrete surface over top of RCC chajjas/ wall and plinth protection joint with using waterproofing compund as per manufacture instruction finished even & fair with using extra cement Note: Waterproofing will not be measured seperately

M&L for 75mm thick cement concrete (1:3:6) type C1, using 20mm graded stone aggregate as in plinth protection, finishing cement concrete surfaces even and smooth without using extra cement, Joints of plinth protection shall be filled with bitumen mastic (1:3) complete all as specified and as directed.

Dismantling wrought iron or mild steel work of any description not otherwise provided for etc, complete all as specified and directed.

M&L for Roof trusses (framed), trussed, purlins, crane gantries, rails and fastenings and heavy bracket framing (Beam, tee, angle, channel or flat sections) including distance pieces, cleats etc.

M & L for preparation of new or previously untreated steel surfaces of any description, n.exc 10cm in width or girth when unconnected with other painting or when painted in a different tint and applying two coats of synthetic enamel paint over a coat of red oxide primer complete all as specified and directed.

Dismatling plain or corrugated steel sheeting, any gauge, thickness, including Nainital or similar pattern roof coverings.

M&L Pre- painted galvatume aluminum zinc coating GI based corrugated steel sheet 0.50mm thick of an colour having tensile strength of 550 Mpa as in roof covering/cladding to wall, fixed with self tapping screws as specified

RELIEVING STRUCTURAL MEMBERS Relieving Structural members such as column, beam and slabs of their superimposed loads partially or fully by provision of adjustable steel props, frames etc. including providing necessary timber runners, bracing, jacking up arrangement all Complete to the satisfaction of Engineer in charge (Removing and redoing of brickwork, if required, shall be paid separately.

Chipping off existing loose, damaged Concrete from RCC members of all affected RCC Columns, Beams, Slabs and Chajjas on External and internal facades, etc beyond main r/f. (if required in the opinion of the Consultant), carefully with chisel and hammer Providing and applying ‘Rusticide SS’ Rust passivator or equivalent as specified in the Brand Names to existing r/f. bars Including wire brushing of reinforcement , cleaning washing of concrete etc complete as directed.Providing and applying two coats of rust preventor slurry made out of “Polyalk Fixoprime” or equivalent as specified in the Brand Names and cement in proportion 1:1.5 to existing r/f.bars as directed complete. Providing and applying bonding coat of slurry made out of “Polyalk EP” or equivalent as specified in the Brand Names and cement in proportion 1:1 to concrete and r/f substrates complete as directedProviding and applying “Polyalk EP” or equivalent as specified in the Brand Names and providing Ready mix Polymer modified cement mortar of minimum M40 grade ) to RCC members Including Hand packing, curing and making the surface rough for plastering.

M&L for chipping & removal of existing damaged, cracked, spalled & loose portion of concrete of the RCC members completely till the reinforcement is exposed and sound concrete (20mm to 50mm) is observed by using mechanical means and manual chisels and further the surface is jetted with clean water for removal of dust and loose particles and complete all as specified and directed. Note : Hard concrete shall not be removed by force.

M&L for cleaning existing reinforcement by sand blasting with suitable pump as directed by the GE and wire/ rotary wire brush to a shining bright finish, making the surfaces free from loose material, dirt etc complete and applying two coats of alkaline rust converting primer conforming to ASTM-B-117 of make. "Feovert" of "Krishna Conchem" OR "Roff Rust Cleaner' of 'Pidilite' OR 'Shali Rustoff' of 'STP Ltd', on rebars with time interval of 1 hr between the coats, complete all as specified and directed. (Note :- Mode of measurement: superficial area of concrete will be measured.)

M&L for Anticorrosive Treatment to old and new Reinforcement to Epoxy Zinc Primer of M/s. Dr. Fixit by application on exposed reinforcement in two coats with time interval of minimum 4 hours between each coat. The application shall be done by brush after cleaning/wire brushing to the exposed steel surfaces, complete all as specified and directed . Note:- Mode of measurement: superficial area of concrete will be measured.

M&L for Epoxy bond coat of Make Fosroc (NITOBOND-EP) OR EPOXY BONDING AGENT of Dr. Fixit OR equivalent of M/s. Krishna Conchem as approved by GE over exposed concrete surfaces prior to application of any type of mortar to ensure bond between old concrete & new concrete by brush application complete all as specified and directed.

Insertion of SMART CARE APCOREP CORPTAB or equivalent sustained release Corrosion inhibiting caplets which shall protect both anodic & cathodic sites and reduce Corrosion potential Eco; by minimum 80 mV in conductive medium, by drilling 25 mm holes into the concrete at a depth of 30mm and inserts to be filled by EPOXY SEAL all as directed by Engineer in charge

M&L aplying a coat of poymer modified cementious bonding coat on the concrete surface with one coat of styrene butadiene rubber latex emulsion (SBR latex) manufactured by M/s Fosroc chemical or equivalent chemical manufactured by Sika india india pvt Ltd/ Choksey chemicalpvt Ltd/ M/s STP/ M/s Dr Sunanada with four parts of water and six parts of cement by weight coverage of SBR latex 0.25Ltr/sqm for one coat complete all as specified and directed.

S&F for wire netting of stainless steel wire 1.4 mm dia (size of mesh 25 mm ) fixed with tinned tacks of stainless steel wire staples, including necessary frame of steel all as specified and directed.

M&L for application of polymer modified reinstatement mortar 20mm thick in isolated places of repair works of RCC members with Rendroc S2 of M/s Fosroc make or make approved by GE having a compressive strength of M40 grade complete all as specified and directed.

M&L for application of polymer modified reinstatement mortar 30mm thick in isolated places of repair works of RCC members with Rendroc S2 of M/s Fosroc make or make approved by GE having a compressive strength of M40 grade complete all as specified and directed.

Demolition of cement concrete (reinforced) as in roofs, shelves, chajjas, floors ( other than ground floors), beams, staircase, landing, chajjas , parapet, water tank and similar suspended work etc. and removal of rubbish/ demolished materials out of MD land complete all as specified and directed

M & L for TMT bars of Fe-500 D grade conforming to IS: 1786, 10 mm dia & over, including cutting to length, bent to shape required, cranking, bending spirally for hooping for columns, hooking ends and binding with and including mild steel wire (annealed) not less than 0.9 mm dia or securing with clips etc, complete all as specified and directed.

M&L for providing shear connectors and anchoring : Drilling 12mm dia holes upto depth of 100mm and fix 10mm dia TMT bars L shaped anchor rods as shear connectors in defective concrete area of the slab, column, beams etc. or any other structural member as the case may be. Clean the same using water and make sure that there is no fine particle present in the hole. Mix the base and hardener of the polyester resin Fosroc Lokfix or techno commercially equivalent or make as approved by GE with the spatula thoroughly. Fill the drilled and cleaned holes to a minimum depth of 3/4th of the hole with the prepared polyester resin and the reinforced bar shall be inserted to full depth of hole and extra length of the reinforcement bar shall be bent into the concrete to maintain proper cover to the reinforcement. complete all as specified and directed.

M&L for laying cement based Micro-concrete, Rendroc RG 40 of Fosroc make or make as approved by GE, pre-packed single component, chloride free, sulphate free, non-shrink, free flow, self compacting, ready to use after mixing water in specified proportion of approved quality. Formwork shall be provided for placing micro concrete patch repair as required at site with steel jack system and steel props to support the form work in this application of high strength, dual shrinkage, compensated, micro concrete for placing in nominal thickness of more than 50mm for concrete repair with compresive strength of 40 Mpa at 28 days complete all as specified and directed. Note: The qouted rate deemed to be included for steel formwork / shuttering, if any required.

Glass Fiber Wrapping System:.Providing & laying applying Glass Fiber sheet wrap of minimum 600 GSM over structural members including.Surface Preparation: Grinding / moulding concrete substrate, cleaning it with wire brush, removing oil, laitance if present, rounding sharp edges to min 25 mm radius etc., complete.Profiling: Applying PRIMER on prepared substrate, filling holes and uneven surface with PUTTY etc., complete.Wrapping: Wrapping the Glass fibre wrap to structural element at desired orientation using tamping roller to avoid any air voids etc., Repeat the same procedure for multiple layer with interval of 8 hours.Sand Pasting: Applying saturant, rectify air voids if any, paste the river sand on it to make surface rough to take any further finishes.(Mode of Measurement: Per Sq.Mt of Fiber consume and not application of surface area.))

M&L Drilling and fixing teflon nozzles in RCC members, including drilling holes (drilling 12 mm dia, 40mm deep holes in structural members at the intervals of 600mm c/c in staggered manner or s directed by Engr-in Charge in RCC structure elements and cleaning the holes (to clean the holes by air blower prior to fixing nozzles) and fixing of nozzles (to insert 12mm dia teflon nozzles in cleaned holes external end of nozzles (to insert 12mm dia teflon nozzles in cleaned holes external end of nozzles to be machined to receive outlet of grouting gun and fixing it inside the holes by applying thixotropic epoxy putty to ensure complete sealing and curing the system for minimum 12 hrs) and cutting of nozzles (to cut the nozzle by chisel after completion of grouting without damaging structural elements etc complete.

Providing and injection grouting low viscosity (3-5 cps) high molecular weight monomer APCOREP INJECTION GROUT LV or equivalent into concrete by injection grouting at 150-300 mm centre to centre through nylon nipples of 12 mm dia fixed into drilled holes at 3-5 kg /cm2 pressure and having tensile strength of I 0-15 N/mm2 (ASTM-D-638-95) & flexure of 20-25 N/mm2 (ASTM-D-790- 96). Drilling holes and fixing of nozzles paid separetely

Injecting low viscosity (3-5 cps) high molecular weight by pressure and using mechanized injector gun with accessories, till nozzles refuses to accept the grout, Including, Mixing of materials( Mixing material components (part a & b) in required quantities as per manufacturer’s instruction by weigh batching) and Grouting ( Filling the grouting gun with monomer. Maintain desired pressure in the gun by air compressor; maintain the pressure at exit (4 to 5 Kg/ Cm2) by monitoring pressure gauge at exit. Grouting the material through prefixed nozzles in the structural elements till its refusal. Sealing the nozzle with epoxy putty after the refusal. Monitoring leakages through other nozzles while grouting and seal them as per the requirement. Repeat the process for all the nozzles. the operation to be within pot life of the material.)and Cleaning of gun and accessories ( the gun and accessories like valves, pipes and other fixtures to be cleaned with thinner after the operation to avoid jamming of the gun.) etc. complete.

Disconnecting existing water tanks exc. 250 ltr n. exc. 500 ltr, setting aside for repairs,cleaning etc. with all fittings & pipe and hoisting if required reconnecting and re-fixing in position.

Disconnecting existing water tanks exc. 500 ltr n. exc. 1000 ltr, setting aside for repairs,cleaning etc. with all fittings & pipes and hoisting if required reconnecting and re-fixing in position.

S&F in repair 500 Litre Rotational moulded polyethylene water storage tanks (cylindrical vertical with closed top) hoisted and fixed in position all as specified in SSR Part I

S&F in repair 1000 Litre Rotational moulded polyethylene water storage tanks (cylindrical vertical with closed top) hoisted and fixed in position all as specified in SSR Part I

S&F in repair Ball valves 25mm bore dia high pressure of PTMT with epoxy coated Aluminium rod & highdensity plastic ball screwed for iron pipeand fixed in repairs . (Minimum weight 15mm-142gms/ 2 0 m m - 2 1 0 g m s . /25mm-455gms/ 40mm- 690 gms)

Demolition of cement concrete for old water proofing treatment of any description and in any position not otherwise specifically provided for any thickness above ground floor including removing debis out side MD land complete all as specified and directed.

M&L for roughening surfaces of old concrete roof/ floor by picking sweeping clean and washing down with water to removing dust etc. complete all as specified and directed.

M&L for brushing neat cement slurry with 3.0 kg of cement per sq meter complete all as specified and directed.

M&L for 40mm thick (average thickness) PCC (1:2:4), type B1, using 20mm graded stone aggregate as levelling course laid to slope as required, finished even & fair without using extra cement. With using water proofing compound 3% by weight (paid separately )complete all as specified and directed.

M&L for rendering 10 mm thick ready mix cement plaster in cement mortar (1:3) on roof slab/ canopies/chajjas with water proofing compound @ 3% by weight of cement or as per manufacturer's instructions and make surfaces to receive water proofing treatment, finished even and smooth without using extra cement complete all as specified and directed. (Note:- water proofing compound will be measured and paid for separetaly as supply only)

M&L for APP based polymeric membrane minimum weighing 3kg/sqm and minim um 3 mm thick reinforced with polyster non wove fabric (wt not less than 150 gms /sqm) land on primed surface by forced application, complete all as specified and directed (a) cleaning existing surface properly (b) Apply oil bound bitumen primer @ 0.4 lit/ Sqm manufactured by the same agency as that of APP with a density of 0.87-0.89 kg/Lit at 25 Degree centigrade on the prepared dry roof surface. (c) Providng an dlaying APP modified water proofing membrane reinforced with non wooven polyster matt with physical propertieds as under (i) membrane wieght>3.6 kg /Sqm (ii) Net wooven polyster weight > 160 gm/Sqm all as per specified. Over the membrane provide a finishing with solar reflective bituminous aluminium paint two coat @ 0.1 kg/Sqm as prespcibed by manufacture of membrane. Note: APP membrane shall be laid using butane torch by Torch application with minimum 10cm side overlap and 15 cm end lap. The laying of membrane shall be got done through authorised applicator of manufacturer of membrane.

Supply only integral water proofing compound

M&L for supply and application of 7 layer SHR waterproofing coating system on leaking concrete surfaces by thorough surface preparation, opening of cracks followed by one absorption coat of thermacool wp51 or equivalent, nano tech modified, uv resistant electroplast clear coat having min 50% solids,filling of crack, then overcoating with sandwitch coat of electromeric (thermacool wp51 + cement) waterproofing layer weigh 80 gsm non woven fibre mesh, application of 3 rd coat of elastomeric waterproofing laye having +450% elogation, tensile strength min 2.2 with two cats of thermacool 0.3c pure acrylic based, uv resistant mpa and then top-coated non-yellowing bio- organism resistant.

Note: An amount of Rs 4332.00 on account of Credit Schedule for Schedule A Part II shall be deducted from the total amount of BOQ to arrive at Contract Sum.

S K ENTERPRISES (BID ID -3492955)