Internal repairs and painting of vacant flats of DAE quarters at Chembur and Ghatkopar under Chembur Maintenance Unit, Mumbai.

PART I : CIVIL WORKS

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PART I : CIVIL WORKS

Repairs to damaged RCC structural members at all locations/ floors using polymer modified cementatious mortar, for strengthening the existing RCC structural members using acrylic based polymer confirming to the following technical specifications and comprising the following operations: Polymer required for the work shall be procured by the Agency from approved Manufacturers Like M/s Astra , M/s Anuvi, M/s Apcotex or other approved equivalent manufacturer confirming to technical requirements as mentioned below. Important Notes: 1) Breaking cracked/ spalled concrete members along the cracks with plaster, including removing and stacking of all unserviceable material at site, simultaneous transportation and disposal at a location in Outside colony as identified by EIC. complete all as per specifications and as directed by the Engineer- in- Charge. 2) Exposing and cleaning the reinforcement thoroughly by light tapping/ wire brushing of using strong emery paper and finally by acetone/rust remover of Dr.fixit/Anuvi chemicals/Fosroc or other eqivalent. 3) Applying a coat of polymer and cement slurry in the ratio 1:1 by volume to the reinforcement bars. 4) Polymer required for the work shall be procured by the Agency from approved manufacturers Like M/s Astra, M/s Anuvi, M/s Apcotex or other approved equivalent manufacturer confirming to technical requirements as below and the invoices/challans etc to be submitted to EIC for record. 5) Bond coat should be applied @0.37ltr/layer/Sq.m 6) Minimum FM of silica sand should be 2.10 Appearance: Milky white Ph- value : 9-10 Specific gravity : 1.055+/-0.005 Solid contents(%w/w)-: 44+/-1 Viscocity at 25 degree C temperature (in sec): 15-20 Testing of the material as per relevant codes at NABL approved third party Lab. is to be done by the Agency for every batch/lot of supply. Bond coat should be applied @ 0.37 ltr./layer/sq.m. Minimum FM of silica sand should be 2.10

a) Building up with polymer modified cementatious mortar for RCC structural members etc. in layers not exceeding 20 mm in a day (proportion – cement 50 Kg. : Silica sand 125 Kg. : polymer liquid 10 ltrs.) with necessary bond coat (polymer : Cement = 1:1 by volume) for tack coat and also for subsequent layers using polymer including curing, covering the flooring/ window with tarpaulins or equivalent covering material to avoid deposition of polymer mortar and cleaning of floor/ windows thoroughly on completion of repair work etc. complete all as per specifications and as directed by the Engineer- in- Charge.Polymer used for this work in KG shall be measured for payment.

Cement plastering 15mm thick using factory manufactured pre mix/ready mix mortar in CM 1:4 of 'Roofit Mix'of M/s Premier Floor to Roof Materials pvt.ltd/ 'Easy plast' of M/s Walplast Products pvt.ltd/ 'Readiplast' of M/s Ultratech Cement Ltd 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 on internal wall and ceiling finished smooth with pop over brick walls or concrete surfaces at all floors and levels, including membrane curing by applying one coat of factory made curing compound Resikure of M/s Anuvi Chemicals, Concure of M/s fosroc, Dr. Fixit curing compound or other equivalent over repaired surfaces as per manufacturer's specification etc. and it also includes removing of existing damaged/ worn out/ loose plastering and disposing off outside colony etc. complete all as per specifications and as directed by EIC.

Providing and applying 1.5 mm thick white cement based wall care putty in two coats of approved make, at all floors, levels and locations, over plastered surfaces finished smooth to correct line, level, plane, plumb etc., including preparing the surfaces, scaffolding smoothen the putty surfaces with very fine water proof emery paper to get a glossy finish etc. complete as per specifications, as per manufacturers specifications, drawing & as directed by the Engineer-in-charge.

Providing & applying acrylic oil bound distemper in two or more coats on old / new surfaces at all floors, levels & location using ready mixed & ready made acrylic oil bound distemper of approved make and shade including one coat of approved cement primer (water thinnable) including labour, material, scaffolding, surface preparation, cleaning etc complete all as per specifications and as directed by Engineer-in-Charge. (Note:- Acrylic distemper shall have VOC content less than 50 grams/ litre)

On Old Surfaces (Including thoroughly scrapping, removal of old paint, if any, sand papering & preparing the surfaces, applying approved putty for touch up to fill up crevices mild depression etc, necessary covering material (tarpaulin etc), cleaning, removal of splashing & droppings of floors, wall, ceiling, doors & windows etc & disposing of debris at directed place inside colony. )

Providing and applying one coat of base primer (Apex Ultima protect of M/s. Asian paints or Aquatech of M/s. ICI Dulux or equivalent) and two top coats of acrylic water proof exterior coating of Apex Ultima Protek of M/s. Asian Paints / Weathershield flexx rain proof system of M/s. ICI Dulux or other approved equivalent make and shade over the sand face / form finished surfaces / rough cast plaster at all locations as required, thoroughly mixed and applied at an interval of 6-8 hours for each successive coats and ensure consumption of 0.47 ltr/Sqm for 3 coats, (base coat @.29 Ltr/sqm & two top coats @0.18 Ltr/sqm ) for sand face surfaces, including preparation of surface, cleaning and filling the cracks and crevices with Latex caulking crack filler etc complete generally as per the manufacturer's specification and as directed by the Engineer-in-Charge. NOTE: 1) The surface shall be cleaned with water jet with high pressure water pump spray of at least 100 kg/sq.m. and brushing/ rubbing with coir to remove all foreign materials etc before painting work. 2) The entire treatment shall stand guarantee for water tightness from external treated surfaces and for bone dry conditions for a period of Five (5) years .The guarantee shall be given on the regular format of the Department under Conditions of Contract. 3) Lower consumption less than as mentioned will be recovered @ Rs. 450/ltr 4) Any leakages complaints received with a period of 5 years from the date of competion.The contractor shall employee sufficient labour and rectify the leakages immediately within 7 days of those of such complaint from EIC

a) Over sand faced plastered / Form finished surfaces of balcony wall

Providing & applying premium acrylic emulsion (plastic) paint for internal plastered surfaces in two or more coats on old / new surfaces at all floors, levels & location using ready mixed & ready made acrylic emulsion paint of approved make and shade including one coat of approved cement / acrylic primer (water thinnable) including labour, material, scaffolding, surface preparation, cleaning etc complete all as per specifications and as directed by Engineer-in-Charge. (Note:- Premium Acrylic emulsion shall have VOC content less than 50 grams/ litre).

On Old Surfaces (Including thoroughly scrapping, removal of old paint, if any, sand papering & preparing the surfaces, applying approved putty for touch up to fill up crevices mild depression etc, necessary covering material (tarpaulin etc), cleaning, removal of splashing & droppings of floors, wall, ceiling, doors & windows etc & disposing of debris at directed place inside colony. )

Providing & applying flat oil paint in two or more coats on old / new surfaces at all floors, levels & location using ready mixed & ready made flat oil paint of approved make and shade including one coat of approved cement primer (water thinnable) including labour, material, scaffolding, surface preparation, cleaning etc complete all as per specifications and as directed by Engineer-in-Charge. (Note:- Flat Oil Paint shall have VOC content less than 50 grams/ litre)

On Old Surfaces. (Including thoroughly scrapping, removal of old paint, if any, sand papering & preparing the surfaces, applying approved putty for touch up to fill up crevices mild depression etc, necessary covering material (tarpaulin etc), cleaning, removal of splashing & droppings of floors, wall, ceiling, doors & windows etc & disposing of debris at directed place inside colony. )

Providing & applying synthetic enamel paint in two or more coats on old / new wooden / steel surface, at all floors, levels & location using ready mixed & ready made synthetic enamel paint of approved make, shade and pattern including one coat of approved wood / steel primer including labour, material, scaffolding, surface preparation, cleaning etc complete all as per specifications and as directed by Engineer-in-Charge. (Note:- Synthetic enamel paint shall have VOC content less than 50 grams/ litre).

a) On wooden surfaces including one coat of wood primer

b) On Steel surfaces including one coat of steel primer (red oxide based)

Providing, applying and finishing with varnishing over old / new, wooden surface, at all floors, levels & location using two or more coats of glue sizing with approved make varnish over an under coat of flatting varnish of approved make, shade and pattern including labour, material, scaffolding, surface preparation using sand paper & wood filler, cleaning etc complete all as per specifications and as directed by Engineer-in-Charge.