Chemical based waterproofing works for Common Facility Building and various other buildings at North Site, BARC, Trombay, Mumbai 85.

Amount

Providing Chemical based water proofing of modified acrylic emulsion Polymer and Elasomeric waterproofing coating of "M/s. INDOFIL"- MC-76 or approved equivalent quality and product meeting technical parameters over terrace slab/ parapet/ side walls etc. at all elevations including polycon based fibrous net complete including cleaning and preparation of surface and testing by ponding water complete with following operations: 1. Remove all lose materials by wire brush and clean entire terrace completely by clean water. Use wherever required water jet (Pressure required 10 kg/Sq.cm). 2. Open all visible cracks using plaster Cutter machine / chisel in "V" shape up to crack depth. 3. Dilute Indofil binder with water in the ratio 1:4 and pour on the bare slab to be treated. 4. Apply Indofil binder and cement in the ratio of 1:1 and add water to obtain paste like consistancy and fill the cracks. 5. Fill the cracks with Indofil binder : Quartz Sand: Cement in the ratio 1:5:15 and water to be added achieves the paste consistency. 6. Apply the bond coat of Indofil binder and cement in the ratio of 1:1 to entire terrace. 7. Seal all joints such as collar joints of the drain water outlet using Indofil binder : Cement: Quartz Sand in the ratio of 1:5:15 + water for paste consistency. 8. Apply a coat of Indofil binder and Cement bond coat over above surface in the ratio of 1:1 i.e. (It is recommended that the surface can be dampen before applying 1st coat of mix of Indofil binder & cement or as per manufacturer's specifications). 9. Lay the Polycon based Fibrous waterproofing net ( Polyester Geotextile of min. 80 GSM) for entire area of terrace including lapping immediately after applying bond coat. ( To be laid immediately before drying 1st coat of Indofil binder and cement). 10. Apply one more coat of Indofil binder and cement on above fibrous net (Geo textile) in the ratio of 1:1 (can be applied within 12-18 hours of fibrous net laying). 11. To protect the polymer film and to enhance the life of coating, apply two coats of Indofil Flexcoat- WP @ 0.42 kg/Sqm for two coats minimum ( Elastomeric water proofing exterior coating) over above surface with dilution 10% weight of potable water. 12. The above treatment should be done over terrace slab of any shape, parapet, gutter, etc.,. complete as per directions of Engineer-in-charge . 13. Terrrace surface to be tested for waterproofing - 7 days by ponding water. Note: 1. The entire work shall be carried out as per manufacturer's specification and as directed by the Engineer-in-charge. The contractor shall furnish guarantee bond on appropriate stamp paper in the proforma as per Appendix "D" for the entire water proofing treatment in bone dry condition for 5 years, backed by manufacturer. During the guarantee period contractor shall attend all leakages, defects etc., if noticed, free of cost, starting the work of checking up and rectification within a week's time from the date of intimation about such leakages/defects. 2. Contractor shall maintain log book for consumption of materials. 3. Minimum average consumption: i) MC-76 should not be less than 0.8 Kg/Sq.M ii) Flex coat should not be less than 0.42 Kg/Sq.M

Supplying man power alongwith necessary pans, spades, shoval, pickaxe, punjas, ropes, small specials spade, rain coats, safety shoes etc., minimum two number of labour per day, having valid Police Verification Certificate (PVC), upto maximum any number of labours and when decided by Engineer-in-charge to work for eight hours per day or monsoon peiod to carry out the cleaning of chocked drain gratings grills / hume pipes/ footpath by removing the dry leaves silt etc., and also carry out seasonable departmental work/ miscellaneous works allotted by Engineer-in- charge from time to time.

Providing and fixing double tubular scaffolding system using H-frames with cup lock type on the exterior side upto seven story height made with 40 mm dia M.S. tube 1.5 m centre to centre horizontal and vertical tubes joining with cup and 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 building etc. wherever required for inspection of work at required locations with essential safety features for the workmen etc. complete as per directions and as approved by the Engineer -in - charge. The elevational area of the scaffolding shall be measured for payment purposes. The payment shall be made once irrespective of duration of scaffolding

Dismantling and re-installation of PV solar modules each weighing 24 kg and its supporting GI structure aproximately weighing 25 kg per modules, dead weight of PCC blocks 4 nos in each module and weighing 20 kg in each block , earthing etc and stacking and reshifting the components at suitable locations without disturbing the the adjacent structures or any other movements of building users etc. as per the detailed specifications. The whole work should be carried out under electrical supervision

MAHESHWARI ENTERPRISES

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