Industrial
Cadbury Factory Building
Cadbury Factory Building
Problem:
- Over 50-year-old factory.
The RCC structure was badly damaged due to corrosion of the embedded steel. - First major repairs undertaken for plant
Solution:
- The area where repairs were conducted was completely isolated from food production area, with bison paneling and temporary mezzanine floor.
- Damaged steel was treated with anticorrosive coatings and corrosion inhibitors.
- Cracked sections were grouted with food grade epoxy grout to suit the standards.
- RCC elements were rebuilt with micro-concrete and wrapped with GFRP
- All external were treated with elastomeric waterproof paint.
- Work was carried out and completed in phases as per schedule
Textile Factory at Vapi
Textile Factory at Vapi
Problem:
- Due to a construction defect, beams showed shear cracks.
- Beams were to be upgraded to carry extra load
Solution:
- Proper covering of machinery to avoid any damages.
- Cracked sections were grouted with monomer grout.
- Stiffening of beams was carried out using steel sections.
- RCC beams were wrapped with GFRP as per design requirement.
Failed Cold Storage RCC Frame, Navi Mumbai
Failed Cold Storage RCC Frame, Navi Mumbai
Problem:
- As terrace slab, beams and columns were subjected to additional load due to temporary shifting of extra consignment of goods.
- Consequently, it led to local failure of structure
Solution:
- Load on terrace was removed
- Structure was immediately supported by putting additional props
- Additional steel reinforcement bars were provided as per design
- Grouting of low viscosity epoxy resin was carried out through all cracks
- Corroded steel was treated with anti-corrosive chemical coating
- Sections were jacketed using Micro concrete
- All columns were wrapped with 3 layers of carbon fiber wrap
- Entire job was completed in 15 days and has been in use successfully for last 4 years
Factory Building, Century Rayon in Sahad
Factory Building, Century Rayon in Sahad
Problem:
- Attack of corrosive gases produced within the factory
- Carbonation of concrete, reinforcement corrosion and spalling were the major problems
Solution:
- Anticorrosive treatment on rebars, followed by corrosion inhibitor coating
- RCC grouting with low viscosity monomer.
- Concrete RCC sections were rebuilt with thixotropic mortar
- Wrapping with single layer of glass fiber wraps at select locations.
- Plastered surfaces were finally applied with coal-tar epoxy
- All works were either carried out during maintenance shutdown or in working plants without affecting the regular production.