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Projects Sector-wise
Sanrachana Brochure
Sanrachana Technical Papers
Projects Sector-wise
Services
Concrete Repairs
Corrosion Study & Cathodic Protection
Underwater repairs
Retrofit Design
Structural Strengthening
Seismic Retrofit
External Post Tensioning Systems
Structural Steel Fabrication
Bearing & Structural Joint Maintenance
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Pre And Post Repair NDT Tests
Full scale load testing
Structural Health monitoring
Moisture control & Waterproofing
Masonry structure retrofit
Building Facade & Envelopes Repair and restoration
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Industrial
Cadbury Factory Building
Textile Factory at Vapi
Failed Cold Storage RCC Frame
Factory Building, Century Rayon in Sahad
Overview
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
Overview
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.
Overview
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
Overview
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.
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