Corporate / Commercial
Commercial Building, BKC, Mumbai
Commercial Building, BKC, Mumbai
Problem:
- Provision for additional 2 storey was needed for the G+14 building
- Some intermediate flat slabs needed to carry 1500 kg/sqm (UPS and battery room)
- Bending and shear cracks had appeared on beam below because of inadequate tension & shear reinforcement
Solution:
- Basement and ground floor columns were strengthened by micro-concrete jacketing
- Intermediate flat slab on required floors were upgraded to carry load of 1500 kg/sq.mt for UPS and battery room requirement, using externally bonded post tensioned carbon laminates
- All the beam column joints were wrapped using glass fiber wrap
- Project was completed in 60 days
- Full scale load test was carried out before handing over UPS area to client.
Commercial Complex, Bangalore

Commercial Complex, Bangalore
Problem:
- After exhaustive testing by internal quality assurance team, it was decided to improve the performance of existing concrete in select areas.
- Few areas were to be designed for additional battery load of data center.
Solution:
- Performance of hardened concrete was improved by carbon fiber wrapping.
- At few locations, conventional RCC jacketing or steel plate bonding was done.
- Flat slabs were strengthened in flexure using carbon fiber laminates.
- Punching shear was counteracted by structural steel plate and stiffener system.
Retail store of Charagdin, Mumbai

Retail store of Charagdin, Mumbai
Problem:
- Structural elements on top floor showed signs of corrosion. NDT results were doubtful.
- Corrosion cracks and carbonation of concrete were visible at site.
- The work must be done without disturbing the customer movement in the garment outlet
Solution:
- The work was done in phases. Area under repair was covered to protect all the fixtures within.
- Due attention was given to ventilation of the area so that the dust generated moves out quickly and does not spread in the shop.
- Temporary false floor was prepared for working; the loose concrete was removed and steel treated for corrosion.
- Issue of honeycombing was addressed using epoxy grouting under pressure
- Sections were rebuilt using micro-concrete for columns and thixotropic repair mortar for slabs.
- All areas were given a treatment of glass fiber wraps from durability point of view.
Commercial IT Park

Commercial IT Park
Problem:
- The PT concrete flat slab showed major cracks for an important commercial IT building.
- Misplaced PT cables were found as a prime reason for those cracks on two floors.
Soultion:
- Floor load was partially relieved by propping up the entire floor area from below.
- Cracks were sealed from below and grouted with monomer from top under gravity.
- A system of FRP laminates was designed and applied on top of slab to counter the deficiency
- Successfully carried out retrofit of 1 lakh sq.ft area using 10,000m of carbon fiber laminate.
- Full scale load test was carried out by using water load before handling over to client.
- Entire project was completed in 60 days.
Strengthening of a Podium Structure

Strengthening of a Podium Structure
Problem:
- A landscaped area with trees weighing 5-8 tonnes, (urban jungle) was made on a podium
- Post tensioned slab was failing in both punching shear an flexural moment.
Solution:
- Strengthening for punching shear by increasing the depth of capital by RCC jacketing.
- Increasing the flexural capacity by providing SRM carbon laminates from top and bottom
- Entire work was completed in 30 days
Distressed Post-Tensioned Member Strengthened with External Post-Tensioning
Distressed Post-Tensioned Member Strengthened with External Post-Tensioning
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Problem:
- Cracks were seen in post tensioned beams on all floors of the commercial building
- Upon investigation, it was found that number of PT cables originally provided, was insufficient
Solution:
- Since already a PT system was in-place, it was decided to retrofit using same mechanism
- External post tensioning was performed successfully
- Project was completed in 45 days.
Strengthening of Retail Store, Mumbai

Strengthening of Retail Store, Mumbai
Problem:
- Deficiencies in beams and flat slabs were identified in kitchen and loading bay area
- Spans were large hence design intervention was critical.
- Retrofitting must be completed before the facility becomes operational.
Solution:
- Additional forces needed to be resisted, were obtained from consultant
- Steel plates were designed for enhancing the load bearing capacity of beams.
- The top portion of the slabs were chipped off to remove the cover zone.
- After providing shear keys, reinforcement mat was laid as designed and concreted.