Providing Water Proofing Treatment along with APP Membrane for Roof Slab of Building No 18 at PRPD Kalpakkam

Amount

Dismantling old weather proofing materials such brick bat coba and foam concrete at all levels and including removing bitumen coat, cleaning the surface, lowering the dismentled material through Dust chute etc., including disposal of rubbish to the dumping yard within 1 (one) kilometre lead all as per specifications and as directed by the Engineer-in-Charge. ( The work described above is to be executed at a height of 15m)

Plastering with cement mortar 1:4, 12mm thick for parapet / gutter/ brickwork/ RCC for internal and external faces ,finished smooth including mixing MasterEmaco SBR of BASF / Nitobond SBR /Sika Latex approved equivalent at the rate of 7 Lt. / Bag of cement ,over the primed surface using Nitobond SBR in 1:1:3 by volume (SBR : Water : Cement). mortar has to be applied before priming coat dries, if the bonding compound dried it should be re-coated, scaffolding , curing etc complete all as per drawings, specifications and as directed by the Engineer-in-Charge. Note: MasterEmaco SBR of BASF / Nitobond SBR /Fosroc SBR shall be supplied by department. ( The work described above is to be executed at a height of 15m )

Providing and mixing MasterEmaco SBR in plastring mortar for RCC old structures Nitobond SBR/MasterEmaco SBR of BASF /Sika Latex construction chemicals make or approved equivalent including tax and transportation etc., complete all as per specifications, drawings and as directed by Engineer-in-charge.

Providing and laying haunching the wall and slab joint around the wall using CM 1:4:2 (Cement: Sand: Chips 10mm and downgraded) for a size of 100mm X 100mm admixed with CERA LATEX SBR of CERA / SIKA / FOSROC or equivalent @ 1 Kg per bag of cement including preparing the surface throughly by chipping all loose material / mortar, cleaned with wire brush and coir brush in order to remove all loose & deleterious matter, dust etc. applying polymer bonding agent CERA LATEX SBR of CERA / SIKA / FOSROC or equivalent @ 1 Kg per bag of cement shall be mixed with neat cement slurry and applied as bonding coat and as directed by Engineer-in-Charge complete all as per specification. Note: CERA LATEX SBR of CERA / SIKA / FOSROC shall be supplied by department. The surface shall be cleaned throughly with wire brush and light chisels for making the surface free from existing bitumen primer, dust, other laitance, etc., ( The work described above is to be executed at a height of 15m )

Making 25mm thcik levelling coarse of 1:3 cement sand mortar including mixing MasterEmaco SBR of BASF / Nitobond SBR /Fosroc SBR approved equivalent at the rate of 7 Lt. / Bag of cement ,over the primed surface using Nitobond SBR in 1:1:3 by volume (SBR : Water : Cement). mortar has to be applied before priming coat dries, if the bonding compound dried it should be re-coated and the rate includes providing and laying of Geotextile fabric 50 GSM reinforcment over precast RCC slab, curing etc., complete all as per drawings, specifications and as directed by the Engineer-in-Charge. Note: MasterEmaco SBR of BASF / Nitobond SBR shall be supplied by department. ( The work described above is to be executed at a height of 15m )

Providing water proofing treatment to the Terrace over RCC precast slab roofing area at an Elevation upto 15.0M from FFL, using Sika Wp SHIELD 4P 4mm & WP SHIELD 4 PM 4mm thick/Fosrco or equivalent as per specification, the rate includes applying bituminous primer over surface @ 0.4 kg/sqm and as directed by the Engineer-in-charge. The procedure for carrying out water proofing shall be followed as described below. a) when the entire surface is water-tight, dry and moisture free, one coat of bituminous primer shall be applied over surface @ 0.4 kg/sqm and 1 st layer 4mm thick, polymer reinforecd APP membrane Fosrco/Sika WP SHIELD 4P or equivalent shall be laid with 100mm overlapping by torch on application when the primed surface is tacky and as per the manufacturer's recommendation. b) The second layer of 4mm thick, polymer reinforcement APP membrane Fosrco/Sika WP SHIELD 4 PM or equivalent shall be laid with 100mm overlapping by torch- on application when the primed surface is tacky and as per the manufacturer's recommendations.Note: I) The treatment should be done by an agency specialised in the job having sufficient knowledge of water proofing treatment. Suggested vendors: (1) M/s. Fosroc Chemicals (2) M/s. Sika India Pvt.Ltd. Chemicals (3) BASF chemicals.II) Ten years guarantee shall be given by the contractor in the prescribed form of the department for the above water proofing treatment work.III) All necessary safety permits should be obtained from PRP safety division as admissible.IV) The work described above is to be executed at a height of 15m and necessary lifting arrangements for material and men movement should be arranged by the contractor by his own cost.

Shivkrupa Enterprises (BID ID -3338636)

N ABDUL KALEEL (BID ID -3338769)

CHEMIX Concare Systems (BID ID -3335368)