Bharat Electronics Limited-BEL has published Providing Terrace Water Proofing To Production Control And Material Management Building Of Bel-Chn. Submission Date for this Tender is 19-10-2021. Water Proofing Work Tenders in Bharat Electronics limited Nandambakkam Chennai Tamil Nadu. Bidders can get complete Tender details and download the document.
| Sl. No. | Item Description |
| 1 | Water proofing works: |
| 2 | HydroShield PUD PlusSurface: RoofLife Expectancy: 12 YearsApplication Method:Step 1: Surface Preparation Clean surface & keep surface dry and in sound condition to ensure adequate adhesion. All oil, grease, dust, loose particles and other foreign material will be removed & surface will then be thoroughly washed off with clean water. Check if the roof has a slope of a minimum of 1 in 100 already provided. Bitumen based waterproofing treatments if existing will be completely removed by mechanical scarification or by any other effective mechanical means. (additional scope, if applicable) Areas of algae, mildew or fungus on the roof membrane or the existing coating will be treated with a solution of 1 part household bleach and 3 parts water, followed by a power washer rinse using clear water. All joints/corners/drainage outlets and penetration points will be treated prior to all application. Step 2: Crack Filling Carry out sealing of existing cracks & joints before the application to ensure long lasting waterproofing results. Cleaning of hairline cracks, of dust, residue or other condemnation. All hairline cracks should be opened to at least 1 - 5 mm with “undercut” groove for ease of application, then filled with acrylic crack filler Dr. Fixit Cracks-X paste. For porous surfaces, primer coat will be applied, prepared with Dr. Fixit Crack X Paste and water 1:1 proportion over the crack. Fill Dr. Fixit Crack x Paste when the surface is tacky not dried. Allow it to set for 24 hours. Cracks more than 5 mm will be repaired with polymer-modified cement sand mortar in the ratio of 1:3 duly admix with Dr. Fixit Pidicrete URP @ 10% by weight of cement Or with Dr. Fixit Polymer Mortar HB (a ready to use single component polymer modified repair mortar). The surface will be allowed to cure for 5-7 days /moist cure as usual. Step 3: Primer Application Ensure proper surface adhesion with a single coat of Dr. Fixit Primeseal diluted with water in the ratio 2:1 spreading at the rate of 8-10 /Sq.mt /Liter Substrate to be in SSD condition for the application of primer. Step 4: Coating Application of 1st coat of Dr. Fixit HydroShield PUD plus without dilution spreading at the rate of 0.70/liter/Sq.mt/Coat until all surface is covered. Lay a 45 GSM Fiber glass mesh / 40 -50 GSM Geo textile Fleece as a reinforcing material which is incorporated in the coating when the first coat is still in wet condition. The first coat will be allowed to dry for approximately 4-6 hours before applying the 2nd coat at 90° to the first coat. Ensuring there are no pinholes or air bubbles on the membrane surface. Application of second coat of Dr. Fixit HydroShield PUD Plus without dilution spreading forced consumption at to achieve total dry film thickness of 800 to 1000 microns at forced coverage 1.30- 1.40 /litre/Sq.mt in 2 coats. Ensuring there are no pinholes or air bubbles on the membrane. |
| 3 | Treatment of Joints:Step 1: Treatment of Cold Joints / Thermal cracks- Providing & filling of cold joint with Dr. Fixit PU Sealant / equivalent sealant, including opening of joint & filling of compressible suitable backup material, finishing & levelling complete. Step 2: Treatment of Expansion Joints- Providing & applying of Dr. Fixit Pidiseal PS 41G sealant for sealing of expansion joint of 40mm width & 20mm depth on primed surface with Dr. Fixit Pidiprime A, including filling of suitable compressible backup material for creation of uniform depth & creation of suitable uniform width with chiselling / plastering wherever required as per site condition. |
| 4 | Civil Repair Works:Step 1: External wall/Floor repair work: Clean & chip off the damaged and loose plaster portion etc. Moisten the surface and apply I coat of bonding coat using Dr. Fixit Pidicrete URP in the Ratio of (1:1) 1 part URP: 1 part cement. Before application of patch plaster. Step 2: Patch Plaster: Providing and applying 20-25 mm thick sand faced cement plaster to external surfaces in two coats with first coat in 12-15 mm thick in ratio of 1:4 C.M when bond coat is tacky and second coat in 8-10 mm thick in C.M 1:4 finished in proper line and level. Add in both the coats shrinkage compensating integral waterproofing compound Dr. Fixit Lw+ 200 ml per bag of cement. |
| 5 | System lumens :- Not less than 1200 lumens |
Copyright © 2024 · All Rights Reserved. Terms of Usage | Privacy Policy
For Tender Information Services Visit : TenderDetail
