External repairs, painting of gable end walls emergency repairs, grouting and crack filling work of various buildings under TTM IV maintenance unit at Anushakti Nagar, Mumbai.

Amount

Part A

Description of Work / Item(s)

Amount

Part A

Supplying and erecting M.S. tubular scaffolding using 'H' frames of M/s. Acrow India (or) equivalent with horizontal and vertical rows @ suitable spacing as per I.S. specification which should be suitably overlapped at junctions and cross braced wherever required and securely tied, supporting the scaffolding with building members as permitted by the Engineer-in-Charge, including all pipes of scaffolding shall be atleast 40mm n.b. dia heavy class seamless pipe, providing necessary safety belt and helmet to the workers and dismantling & taking back the scaffolding, safety belt and helmet after the repair works are completed all as per specifications and directed by the EIC.

a) M.S Steel Scaffolding

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 and comprising the following operations: 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 disposed at a location in Anushaktinagar 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. 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. 5. Bond coat should be applied @ 0.37 ltr./layer/sq.m. 6. 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 using factory manufactured pre mix/ready mix mortar in CM 1:4 of pre mix/ready mix of 'Roofit Mix'of M/s Premier Floor to Roof Materials pvt.ltd/ 'Build Well ready mix plaster ' of M/s Walplast Products pvt.ltd/ 'Readiplast' of M/s Ultratech Cement Ltd / Readymade polymerised Drymix Plaster - Silicoplast of M/s. Precise Conchem Pvt. 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 neeru over brick walls or concrete surfaces at all floors and levels, including curing and removing existing damaged/ worn out plastering and disposal of debris at a location in Anushaktinagar as identified by EIC etc. complete all as per specifications and as directed by EIC.

a) 20 mm thick

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 Weathershield flexx rainproof 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 EIC. 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

Providing and applying shrinkage crack filler of Dr.Fixit Crack X Paste / smart care crack seal of Asian paint in paste form / Aquatech crack filler in paste form of Dulux or other equaivalant material including opening the loose part of the existing crack , making the same in V - shape in required depth & width, cleaning the groove by removing dust, oil, grass, loose particals etc., press the crack filler in to the crack one time only with a spatula or putty knite and level the surface etc. completed all as per manufacturer's specifications and as per direction of the engineer-in-charge.

Providing and fixing in position white marble stone drip mould of size 1200mm to 1500mm length, 150mm wide & 18mm thick,100mm wide,embedded in to masonry /concrete and 50mm exposed outside including making chases in wall, exposed edge machine cut & machine poloshed grouting with cement mortar 1:1 mixed with approved waterproofing compound , sealing the joints for water tightness finished smooth to proper level,hand polishing after laying, curing etc.complete all as per specification and as directed by Engineer-in-Charge.

Plain cement concrete 1:2:4 using graded stone aggregate of 20mm max. size at all floors, levels and locations including machine mixing, laying, consolidation, finishing, curing, etc. complete all as per specifications and as directed by the Engineer-in-Charge.

Brick work 230 mm thick in super structure Class designation 75 in cement mortar 1:4 using well burnt locally available bricks of approved quality including scaffolding, raking out joints, curing etc. complete all as per specifications and as directed by the Engineer-in- charge.

Pressure grouting through RCC slab/ brick masonry by drilling hole in RCC slab to required depth without causing any damaged to reinforcement, inserting ½” dia PVC pipe in hole securing the hole sides with mortar 1:2, pressure grouting with cement slurry mixed with approved water proofing compound @ 2% by weight of cement to required pressure, continuing the pressure grouting till the flow of cement slurry stops, removing the PVC pipe, sealing the hole with cement mortar 1:1, scaffolding etc. complete all as directed by the Engineer- in- Charge.

Providing and applying Asian paints smartcare Damp block white coloured coating over wall/conctrete surface including removing old paint, applying one coat of self priming coat of Apsmart care damp block (diluted with water in 1:1 ratio ) and applying two coats of AP smart care damp block (diluted with water in 3:1 ratio ) etc. complete as per specifications and as directed by the Engineer-in-Charge.

APJ CONSTRUCTIONS (BID ID -3228740)

APJ CONSTRUCTIONS (BID ID -3228740)