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| # | Company | Amount | Rank | Status |
|---|---|---|---|---|
| 1 | L1₹5.9 LAdmitted-Fee/PreQual/Technical/Finance | ₹5.9 L | L1 | Admitted-Fee/PreQual/Technical/Finance |
| 2 | L2₹6.0 L+₹16,520 (2.82%)Admitted-Fee/PreQual/Technical/Finance | ₹6.0 L+₹16,520 (2.82%) | L2 | Admitted-Fee/PreQual/Technical/Finance |
| Sl No | Description | Qty | Unit | Shastha Associates L2 | SEEPAGE STOPPERS L1 |
|---|---|---|---|---|---|
| 1.00Polyurethane based Single Component for New Surface | |||||
| 1.10Providing and laying water proofing treatment to the Roof/terrae dome surface with PU based single component elastomeric pure polyurethane based coating on New terrace/Chajjas/Sunken portion of WC: Bathroom, cold applied PU waterproofing membrane that is highly elastic with elongation greater than 400% and tensile strength greater than 2MPa as per ASTM D412. The waterproofing membrane to be applied in 2coats @ 1.6 kg/m2 to achieve final DFT (Dry Film Thickness) of 1mm including prime coat of epoxy primer @150 g/m2 and protection with 120gsm Geo-textile over the waterproofing membrane. The finished cost to include surface preparation, making coving at Junction, Bore Packing, treatment of construction joints completely as per specification. | |||||
| 1.20procedure to be followed: | |||||
| 1.30Standards & Methodology : 1. Surface Preparation :The surface shall be made free from all dirt, fungus, loose particles by using wire brush. The surface shall be cleaned with solvent like xylene, Toulene, Benzene, dilute hydro chloric acid. i).Cutting of 'V' - Grooves: the V shaped grooves shall be cut along the location of all the visible cracks and also tile joints. The 'V'- Grooves shall be of size 5mm as directed by Engineer in charge. | |||||
| 1.402.Primary reduction of water permeability: The concentrated crystallization liquid of specific gravity 1.09 is lightly diluted and applied on the prepared surface. The sodium acetate formed during the chemical reaction penetrates inside the pores of the concrete and reacts with water to form crystals to block the pores of the concrete, there by reducing water permeability. | |||||
| 1.503. Porosity and voids reduction ( Base coat Application) Applying wetting agent consisting of acrylic monomer, co-polymer liquid and crystallization liquid as base on the prepared surface and V groove and crack etc.. | |||||
| 1.604. Application of Sealant/Patching Mortar : Cracks will be sealed using suitable or patching mortar. These make them ideally suited for joint treatment. Its adhesion is very strong& binds with the building materials such as concrete, and take care of expansion and contraction in the structures. | |||||
| 1.705. Levelling course using flexible Cementatious Material :A concrete mix in the ratio of 1:1.5:3 (1 Cement :1.5 Quartz powder : 3 graded stone) is laid to make haunch at junction of parapet and roof slab and at damaged portion of drain off water. The factory made dry CEMENTATIOUS silica sand powder consisting of dry cement mortar (1 Cement :4 silica sand) shall be mixed with additives like ISOPROOF chemical and acrylic polymer and water to arrive at workable consistency. The same shall be applied over the prepared surface to give even surface and act as base for geo-textile fabric. | |||||
| 1.806. Non woven Geo Textile Fabric Application Two layers of Non- Woven Geo Fabric 40gsm (40=40=80gsm) shall be applied on FCM coating. Geo fabric shall be saturated with acrylic co polymer applied in wet condition. Over this layer, flexible monolithic membrane shall be laid by mixing single component ISOPROOF with water in the ratio of 1:1 | |||||
| 1.907.Primer coat : A mixture of acrylic monomer (1:1) ISOPROOF & water mixed in proper proportion will be applied on the geotextile membrane. | |||||
Tender Value
₹4.7 L
Closing Date
28 Jul 2026, 5:00 pmClosed
Administrative Officer
IIA, Koramangala,Bengaluru
Waterproofing work at Dome surface at planetarium Mysuru
2026_IIAP_918317_1
LT/CIVIL/WATER PROOFING AT DOME SURFACE/ IIA/MYSURU/COSMOS/ 05/ 2026-27
Limited
Civil Works
Item Rate
15 days
COSMOS
Please refer Tender documents.
3 documents required · 3 mandatory
₹0
Exempted
29 Jul 2026
21 Jul 2026
29 Jul 2026
22 Jul 2026
28 Jul 2026
23 Jul 2026
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