Repair, waterproofing and painting of Mazdock house, MDL, Mumbai.

Amount

Providing and fixing double scaffolding system (cup lock type) on the exterior side, up to seven story height made with 40 mm dia M.S. tube 1.5 m centre to centre, horizontal & vertical tubes joining with cup & 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 the building etc wherever required for inspection of work at required locations with essential safety features for the workmen etc. complete as per directions and approval of Engineer-in-charge . Note:- (1) The elevational area of the scaffolding shall be measured for payment purpose. (2) The payment shall be made only once. The scaffolding is meant for execution of all the items.

Providing and erecting bamboo's double scaffolding of required height and width and strength by sides of building for platform to enable workmen to carry out repairs to building at any level from ground to any floor height as directed including removing the same and clearing the site.

Providing and fixing Scaffolding net of required width made of high density Polyethylene UV stabilized knitted on warp knitting machines having density 100 grams/sqm and shading coefficient minimum 75% around the construction site/ for vertical extension as per requirement including fastening/tying with building/scaffolding pipes or with any other fixtures etc. complete as per direction of Engineer-in-Charge. (One time payment shall be made for providing Scaffolding net from start of work till completion of work including shifting if any. The Scaffolding net shall be the property of the contractor on completion of the work)

Providing and erecting bamboo platform as per requirement to avoid falling of debris during the progress of work this should be up to 1st floor level.

Providing & fixing 6 mm commercial Plywood Including bracing for protecting and covering the windows/openings /doors before starting of the repair works including the removal of the same after completion of the works. The rate shall be also inclusive of temporary wooden partitions, 6mm thick plywood with door shutters at the desired locations, sealing joints with POP / masking tapes.

Providing and erecting arrester net of varying opening 10 mm X 10 mm X 2 mm size and 75 mm X 75 mm X 12 mm. size in addition to sturdy G.I. corrugated arrester tray at 1st Floor level to prevent the debris from falling on ground during progress of work and keeping the same during the entire period of work.

Disposal of building debris, rubbish, malba, similar unserviceable, dismantled or waste materials by manual, mechanical means, including loading, transporting, unloading to approved municipal dumping ground for all leads including all lifts involved. etc. complete.

Removing carefully existing External Plaster, Facade & Duct coverings from the external walls, RCC structures, stacking the debris as per specifications. Carefully breaking and removing the old damaged external plaster of walls, without damaging the adjoin plaster, brickwork in the vicinity in case of patch plastering, disposal and carting away of the debris , cleaning etc, complete.

Removing old Transparent sheet and Providing and fixing with New Transparent Polycarbonate roofing sheet - 3 mm as per profile of existing sheet.

Anti Corrosive Coatings for reinforcement: a. Surface Preparation : before treatment, the rods are completely cleaned from rust and any other contaminant or product residue that could affect the product's adhesion, brush the metal surface with a specific steel brush to remove the oxidised and deteriorated layer. b. Preparing the product: Pour 1.0-1.1 L of clean water into a clean container and, while mixing, slowly disperse 5 kg material of Mapefer 1 K or equivalent Mix the product until a lump-free homogeneous paste is obtained. Once prepared, mixed material must be applied within 1 hour. c. Application of Anti corrosive Coating : Supply and Apply two coats of one-component mortar with a brush. The second coat can be applied approximately 2 hours after the application of the first coat and preferably within 24 hours. It is recommended to completely cover the surfaces of the rods in a homogeneous coat. The total thickness of the two coats must be at least 2 mm. Inevitably, during the application, the surrounding concrete will also get coated. This will not create problems of bonding of other mortars that will be used for the reconstruction. Repairs with products from the Mapegrout or equivalent range must be carried out once coating is dried (approximately 6 hours at +20°C). Corrosion-inhibiting protection for reinforcing rods in the repair of concrete, single component mortar based on polymers in water dispersion, cement binders having the following properties 1) Density of mix: 1800 kg/m³ 2) Bond strength to concrete by pulloff:> 2.0 MPa 3) Passes Corrosion resistance EN 1504-7: – 10 condensation cycles in water – 10 sulphur dioxide cycles according to EN ISO 6988 – 5 days in salt spray according to EN 60068-2-11 and as per manufacturer specification. Consumption: 100 g/m per reinforcing rod with an 8 mm diameter and 200 g/m per reinforcing rod with 16 mm (2 mm of applied product). Treatment to be done as per manufacturer recommendation/specification

SEPARATION CRACK TREATMENT : Cutting the plaster at the separation of RCC and brick wall joint with an electrical grinder to a depth of 15 mm and making groove of about 20 to 25 mm width,raking out the joint, cleaning the same thoroughly with running water, applying ready mix Mortar (PMM - compressive strength 40 MPA) or 1:5:15 (Site Mix PMM) by filling the gap with and in the groove and finishing the joint flush neatly with the surrounding and as per manufacturer recomandations

Removing refixing the same old windows including Aluminium Frames and clean the surface as directed by EIC

Application of Silicon Sealant to window: Providing and applying 6-8 mm Gap with one component, high performance sealant based on Hybrid Polyurethane Technology with an excellent UV, Weather & temperature resistance It has an excellent adhesion over a wide variety of substrates & is Paintable with most common industrial paints. Treatment to be done as per manufacturer recommandation/Specification

Providing and Installation of New Granite Patti (If required): Providing & fixing Granite (MATCHING COLOR) patti for window frame in proper line & plumb including cutting of granite to appropriate size, approved shade, colour and texture laid over 20 mm thick base cement mortar 1:4 (1 cement : 4 coarse sand), joints treated with white cement, mixed with matching pigment, epoxy touch ups, including rubbing, curing, moulding and polishing of edges to give high gloss finish etc. complete at all levels.

Providing and erecting steel props (upto 14' height, , resting on wedge ) to support the structure provisionally during repair and jacketing etc. and to be held in position till required.

Providing, cutting, Fabricating & fixing / placing in position mild Steel / H.Y.S.D. bars coated with 'Rust Preventive coat of specified size connecting to the existing reinforcement including welding / tying with G.I. binding wire [if required] with the existing reinforcement complete as per the specification including necessary labour, tools, tackles, materials, etc. complete as per the specification & as directed EIC the rate to include cost of binding wire and the welding [if required] no extra payment will be made for this. Reinforcement to be measured in lengths of different dia as actually used in the work and their weight calculated on the basis of standard of I.S. code.

Insertion of sustained release Corrosion inhibiting caplets which shall protect both anodic & cathodic sites and reduce corrosion potential eccorr by minimum 80 minimum 80 mV in conductive medium , by drilling 25 mm holes into the concrete at a dept of 30 mm and inserts to be filled and seal it with non shrink epoxy sealant.

Polymer cement slurry as a bond coat (Masonry walls): Provide and applcation of one coat of bonding slurry before application of plaster with addition of polymer in the ratio of 1:1 (Polymer : Water) for the proper bonding between the old masonry with new plaster.

Bonding agent between the new plaster and old RCC: SURFACE WHERE PROPER HACKING IS NOT THERE (BOTH FOR INTERNAL AND EXTERNAL AREAS ) : Providing and applying bonding agent two component solvent-free epoxy adhesive in the ratio of 3:1(A:B) and as per manufacturer's specification on the RCC members where proper hacking is not there followed by dash coat of cement mortar (1:4 ) after 10-15 minutes or as per product literature/specification .

Breaking of exisiting Waterproofing upto RCC Level :- Removing existing water proofing treatment over terrace, chajja etc. by mechanical as well as manual means upto slab level and cleaning the surface for providing new specialized water proofing treatment etc. complete as per the direction of Consulting Engineer / in-charge

Surface Preparation: Cleaning and wire-brushing and mechanical grinding. The RCC surface shall be thoroughly cleaned of all contaminants like dust, oil and grease, all surface imperfections, protrusions, structurally unsound and friable concrete must be removed and make it perfectly clean.

Preparing Watta: Any corner or concrete slab-wall joint/junction should be opened with a chisel to a size of 3 x 3 cm, avoiding “V” shape and fill the grove with Polymer Modified Mortar. These grooves should be finished in a shape of a cove to provide a smooth edge.

Treatment to Pipe Cutouts/ Bore Packing: Annular Space left around pipe cutouts/ bore packing in floor and walls shall be grouted by using non-shrink cementitious grout followed by a sealing system as per manufacturer's recommendation.

Providing a layer of Brick Bat Coba: for Water Absorption & Provision of Slope Use of Well burnt & sound bricks (preferably old) is essential for a good water absorption layer. The brick bats shall be laid on a Ready mix mortar CM 1:4 with Integral Waterproofing Compound over the waterproofing layer. The necessary slope in the required direction shall be provided and the joints shall be properly filled with the mortar and Coving (watta) shall be prepared along the junction of the wall and slab. The coba shall be cured with water for a period of 7 days.

Pressure grouting of construction joints and honey combed concrete as applicable: Providing & Injection grouting method with a two-component, low-viscous moisture insensitive epoxy resin with manufacturer's specification having a compressive strength of 70 Mpa (ASTM D 695); Tensile strength of 40 Mpa (EN ISO 527); volumetric shrinkage of <2.1% (EN 12617 - 2) in accordance to EN 1504 - 5. The material can even be poured into the crack if the crack is horizontal. Packing the holes after removing of packers with non-shrink polymer modified mortar. The two components A &B must be mixed together. PVC/ Aluminium nozzles shall be fixed in these holes & Pressure injection Grouting with non-shrink cementitious grout/ Epoxy grout injected through these nozzles using grout pumps of aeuate rating and capacity. After all the holes are completed, the grout is allowed to set for 24 hours and the next day nozzles are removed and holes are sealed. Mixing : Pour component B into component A and mix by hand using a trowel (for small amounts), or with a low speed heavy duty drill (for large quantities), avoiding the formation of air bubbles, until the mix is completely homogeneous. Do not use partial quantities of the parts as this may produce an imbalance in the proportions which could lead to incomplete hardening of Epoxy Grout. Application: Inject epoxy grout immediately after its preparation with a suitable pump, starting from the lowest tube. Inject until the resin overflows out of the next tube. Close the lower tube and continue injecting until the entire crack is completely sealed. Horizontal cracks can be sealed simply by pouring epoxy grout directly into crack. At +23°C. product must be used within 40 minutes of its preparation.

External Waterproofing Treatment: I) Primer Application - Providing & Applying Primer on a concrete surface Consolidation primer on the entire surface in one or two coats as per site surface required at a ratio 1:1 mixed with water by brush. II) Waterproofing Treatment : Two component cementatious Coating, Mix the part A into Part B (2:1) by using Electronic Paddle mixer. Application of High Elongation and crack bridging coating at 1.6 kg/Sq.m and gently lay the non-woven fabric, macro-holed to enhance the bond between the first and second layer of the flexible, waterproof membrane in which it is embedded. when the coat is wet, after 5 hrs or second day apply second in opposite to first coat at same consumption of 1.6 kg/Sq.m. The product should be applied in total 3.2 Kg per sqm in two coats by using 2 mm Stiff-bristled block brush or suitable Roller. Specification Criteria: The product, in the form of a 2 mm thick free film, must have the following characteristics: adhesion to concrete after 28 days (EN 1542) (N/mm²): 1.3, thermal compatibility to freeze/thaw cycles with de-icing salts (EN 1542) (N/mm²): 0.9, Elasticity (DIN 53504) (%): 150, static crack-bridging at +20°C (EN 1062-7) (mm): class A5 (>2.5 mm), dynamic crack-bridging at +20°C: class B4.2 (no failure of test sample after 2000 cracking cycles with movements of the crack from 0.2 to 0.5 mm), permeability to water vapour (EN ISO 7783-1) (m): sD = 3.6 m µ = 1800, impermeability to water (EN 1062-3) (kg/m²•h0.5): < 0.05 permeability to CO₂ (EN 1062-6) (m): sDCO2 >50 reaction to fire (EN 13501-1) (Euroclass): E. Polypropylene fabric confirms to: 80 GSM, Thickness: 0.6 mm, Tensile strength (EN ISO 10319) (KN/m): 3.9 (longitudinal direction) - 4.1 (transversal direction), Deformation at maximum strain (EN ISO 10319) (%): 80 (longitudinal direction) - 45 (transversal direction). 4 Days pond test to be done on horizontal surface post waterproofing treatment to check the leakages. (5 Years warranty on waterproofing system).

External TEXTURE COATING / SYNTHETIC PLASTER: Providing and applying one coat of 100 % Acrylic Co-Polymer based Synthetic plaster (Ruff-N-Tuff) on external surface of building especially in dead walls & Parapets after cleaning and preparing the surface and as per manufacturer's specifications etc. complete.

External Façade Painting : Supply & application of a single component elastic protective coating Elastocolor Paint based on acrylic resins or equivalent in water dispersion for Concrete structures to protect against aggressive atmospheric agents (CO2 – SO2) which are in contact with sea water, de-icing salts, such as sodium or calcium chlorides & sulphates such as Elastocolor having Certified according to EN 1504-2(surface protection systems for concrete) with Permeability to CO2:SD 318m (EN 1062-6); Permeability to Water Vapour:SD 0.5 m (EN ISO 7783); Diffusion of Chloride ions: penetration 0.0 mm (UNI 7928). The product shall be applied on the cementitious substrate after the adequate preparation of the surface and application of the primer. Product should confirm the Density (EN ISO 2811-1) (g/cm³) -approx. 1.37, VOC content of ready-mixed product (white) (European Directive 2004/42/EC) (g/l) - ≤ 20, Crack resistance -1.6MM, Abrasion resistance result/class - in conformity (Δ weight < 3000 mg), Impact resitance - more than 20 N/mm, Carbon dioxide diffusion resistance SD - 318 Mtr with DFT 250 microns, Water vapour permiability - 2193 with SD 0.5 @ 250 microns(DFT), Water vapour diffusion μ - 545, Diffusion of Chloride ions - Penetration 0.0 mm (UNI 7928). Treatment to be done as per manufacturer recommandation/Specification. Preparation of the substrate: Completely remove all traces of dirt, dust, grease, oil, paintwork, saline efflorescence, mould and moss which could impede Elastocolor Paint from penetrating into the substrate. When choosing which cleaning cycle to use, on old surfaces it depends on the type of dirt, but cold water is usually sufficient. Cleaning the surface with hot water or steam is particularly recommended if oil or grease is present. Sand-blasting may also be used. If the surface is not dirty, the surface may simply be brushed down with a stiff brush and blown with compressed air to remove the dust. Primer Application: Dilute Elastocolour Pittura or equivalent with water in the ratio of 1:1 for primer application Paint Application: Application External Paint of the product Elastocolor Pittura or equivalent can be applied using traditional application techniques: by brush, roller or spray, on the dry coat of the primer. For effective and complete covering of the surface, during application with brush or roller, at two - three coats (DFT 275-300 microns) are necessary. Under normal humidity and temperature conditions, wait 12-24 hours between each coat, and in all cases, only when the previous coat is completely dry. consumption is generally 0.2-0.4 kg/m² per coat.

Breaking and removing internal plaster : Removing carefully existing plaster from internal areas and ceiling including wall tiles, stones, marbles complete including cleaning ,stacking the same.

Polymer cement slurry as a bond coat (Masonry walls): Provide and applcation of one coat of bonding slurry before application of plaster with addition of polymer in the ratio of 1:1 (Polymer : Water) for the proper bonding between the old masonry with new plaster.

Bonding agent between the new plaster and old RCC: SURFACE WHERE PROPER HACKING IS NOT THERE (BOTH FOR INTERNAL AND EXTERNAL AREAS ) : Providing and applying bonding agent two component solvent-free epoxy adhesive in the ratio of 3:1(A:B) or as per manufacturer's specification on the RCC members where proper hacking is not there

Internal Wall Waterproofing: Supply and application 2 Coats waterproofing material consumption of 1.5 kg/sqm per coat. ready-to-use, single component, osmotic cementitious mortar. Apply several criss-cross coats of the product on a clean substrate saturated with water. The product must have the following mechanical characteristics when mixed with 23% water and applied to 2 mm thick. Compressive strength (EN 12190) (MPa): > 25 (after 28 days), Flexural strength (EN 196/1) (MPa): > 6.0 (after 28 days), Adhesion to substrate (EN 1542) (MPa): ≥ 2 (after 28 days), Impermeability expressed as coefficient of permeability to free water (EN 1062-3) (kg/m²•h0.5): W < 0.05 Class III (low permeability to water) according to EN 1062-1, Permeability to water vapour equivalent air thickness SD (EN ISO 7783-1) (m): sD < 1Class I (permeable to water vapour), Reaction to fire (Euroclass): E. Application of the product shall be carried out after all the surfaces and thoroughly prepared free from dust, laitance, dead mortar and any other loose particles that affect the adhesion of the waterproofing mortar from the substrate. I) Surface Preparation: The surface to be waterproofed must be perfectly clean and sound. Remove crumbly or loose parts, dust, cement laitance, form release agents, varnishes and paint by mechanical brushing, sanding or high water pressure. II) Preparing the mortar: Pour 5.25 to 5.75 litres of water into a suitable container and slowly add the Planiseal 88 or equivalent while blending with a mechanical mixer. Mix thoroughly for some minutes, taking care to blend in all the unmixed powder deposited on the sides and bottom of the bucket, until the mortar is completely blended (free from lumps). Leave the mortar to stand for approximately 10 minutes, remix and apply. III) Applying the mortar: Apply Planiseal 88 or equivalent with a brush, trowel or spray. Application by brush requires 2 coats. Make sure the previous coat is sufficiently dry before applying the next (generally 5-6 hours depending on the temperature and the absorption of the substrate. In order to have perfect adhesion between the coats, it is recommended not to exceed 24 hours). To achieve proper application, particular care must be taken to cover corners and coves. When application is by trowel, it is recommended to treat the substrate with Planiseal 88 or equivalent using a brush for the first coat. When spraying, a normal rendering machine (including a rendering machine with bowl-type spray gun) can be used making sure to mix the product beforehand. After having soaked the substrate, apply the mix by spray in two layers. Apply the second one when the first has partially hardened. In all cases the final thickness of Planiseal 88 or equivalent must be approximately 2 mm.

Providing and applying plaster of paris putty of 2 mm thickness over plastered surface to prepare the surface even and smooth complete.

INTERNAL PAINTING: I) Primer Application: Dilute Elastocolour Pittura or equivalent with water in the ratio of 1:1 for primer application. II) Paint Application: Application of the product Elastocolor Pittura or equivalent can be applied with 10-15% dilution: by brush, roller or spray, on the dry coat of the primer. For effective and complete covering of the surface, during application with brush or roller, at least two - Coats are necessary. Under normal humidity and temperature conditions, wait 12-24 hours between each coat, and in all cases, only when the previous coat is completely dry. consumption is generally 0.2-0.4 kg/m² per coat. Treatment to be done as per manufacturer recommandation

Installation of New Duct sheet in old brackets, same as per old duct specifications, colour etc.

UPVC WATER SUPPLY LINES : (NEW PIPE LINES) : Removing the existing GI water supply lines and providing and fixing new UPVC pipes of schedule 80 in that place with solvent cement rubber ring joints, including short lengths, with all pipe fittings (list enclosed) such as ends, elbows, unions, tees, reducing tees, adaptors, sockets, plugs, complete. 25 mm dia. pipe

UPVC CONNECTORS: Providing & Fixing of 15 to 25 mm dia UPVC pipe 1'.0" to 1'.6" in length with in the thickness of walls including making the hole and closing it with cement mortar complete as directed.

Removing the existing plumbing lines/rain water pipe and providing and fixing new PVC pipes with all fittings etc complete. 100 mm dia (Plumbing Line)

Removing the existing plumbing lines/rain water pipe and providing and fixing new PVC pipes with all fittings etc complete. 75 mm dia.(Balcony)

MS BRACKETS & CLAMP: Providing and fixing of MS Brackets & clamp with 5mm thick of all size including drilling and fitting all complete.

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