The document outlines the methodology for groove filling in VDF (vertical down flow). Key steps include: 1) isolating the work area and cleaning the VDF floor and grooves; 2) inserting backer rod and applying primer to the grooves; 3) mixing and pouring the approved polysulphide sealant into the prepared grooves. The sealant is then allowed to fully cure over 4-5 days. Tools used include wire brushes, air blowers, and mixing/pouring equipment. Proper preparation, material application, and curing are essential for effective groove filling.
The document outlines the methodology for groove filling in VDF (vertical down flow). Key steps include: 1) isolating the work area and cleaning the VDF floor and grooves; 2) inserting backer rod and applying primer to the grooves; 3) mixing and pouring the approved polysulphide sealant into the prepared grooves. The sealant is then allowed to fully cure over 4-5 days. Tools used include wire brushes, air blowers, and mixing/pouring equipment. Proper preparation, material application, and curing are essential for effective groove filling.
The document outlines the methodology for groove filling in VDF (vertical down flow). Key steps include: 1) isolating the work area and cleaning the VDF floor and grooves; 2) inserting backer rod and applying primer to the grooves; 3) mixing and pouring the approved polysulphide sealant into the prepared grooves. The sealant is then allowed to fully cure over 4-5 days. Tools used include wire brushes, air blowers, and mixing/pouring equipment. Proper preparation, material application, and curing are essential for effective groove filling.
The document outlines the methodology for groove filling in VDF (vertical down flow). Key steps include: 1) isolating the work area and cleaning the VDF floor and grooves; 2) inserting backer rod and applying primer to the grooves; 3) mixing and pouring the approved polysulphide sealant into the prepared grooves. The sealant is then allowed to fully cure over 4-5 days. Tools used include wire brushes, air blowers, and mixing/pouring equipment. Proper preparation, material application, and curing are essential for effective groove filling.
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METHODOLOGY FOR GROOVE FILLING IN VDF
Material delivery and storage
The following materials will be deployed for the activity a) Backer Rod b) Primer- CG prime porous c) Polysulphide Sealant –As per Approved material d) Masking Tape Resources / Manpower & Tools The following tools and tackles will be required for this activity, a) Wire brush b) Air Blower Methodology for Groove Filling in VDF 1. Isolate the work area by effective barricading. 2. Remove material stacked on VDF floor & clean the dust on floor thoroughly. 3. Remove the dust, mortar, dirt accumulated in the grooves by sharp edge tool. 4. Run the diamond cutter through grove if hard material is stuck firmly in the groove. 5. Clean the groove with wire brush first & then with air blower or with compressed air nozzle. 6. Remove the dust thoroughly in the vicinity of work. 7. Insert PVC backer rod of 8 mm in the groove, in such a way that depth of groove is maintained up to 8 mm. 8. Mop the sides of groove with wet cloth & fix masking tape on both sides of groove. 9. Provide “CG prime porous” which is one component low viscosity primer on both sides of groove up to top of backer rod, for effective bond of sealant with concrete surface & allow the primer to dry. 10. Mix the pre packed two packs (APPROVED MATERIAL FOR FILLING) Pour Grade Polysulphide with slow speed drill machine / mixer fitted with spiral stirrer and mix for 10 minutes. 11. Pour the mixed sealant in the prepared groove, which will get self leveled in the joint. 12. Remove the masking tape & finish the edge smooth using detergent solution. 13. Cover the groove by placing PVC capping material to avoid accumulation of dust on freshly placed sealant. 14. Allow the material to cure fully. (Usually it takes 4 to 6 hours for initial curing & 4 to 5 days for full curing in case of exposed condition.) In covered area it may vary based on temperature.