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Structural Strengthening by Column Jacketing – Netrajyot Eye Care Hospital, Khanda Colony

Client:
Netrajyot Eye Care Hospital
Location:
Khanda Colony, Navi Mumbai

Project Type:
Structural Audit, Design of Repair & Strengthening (Column Jacketing), and PMC Supervision

Building Details
Structure: G + 2 RCC Framed Structure
Usage: Hospital Building (Ophthalmic Facility)
No. of Columns Strengthened: 15 Nos.
Total Built-up Area: Approx. 9,500 sq.ft.
Year of Construction: Approx. 2005

Background & Problem Statement
The hospital management observed visible cracks in columns and beams, spalling of concrete cover, and dampness in the basement and ground-floor areas.
These issues were causing concerns about patient safety, possible load-bearing reduction, and aesthetic deterioration of the hospital’s interior zones.

Valorem Engineering Pvt. Ltd. was appointed as the Structural Consultant to carry out a comprehensive structural audit and propose scientifically designed strengthening solutions without major interruption to hospital operations.

Scope of Work
Detailed Structural Audit
– Visual inspection of all structural elements
– Non-Destructive Testing (NDT) including:
  • Rebound Hammer Test for surface hardness
  • Ultrasonic Pulse Velocity (UPV) for internal concrete quality
  • Half-Cell Potential Test for corrosion mapping
  • Verification of column reinforcement through cover meter survey
– Assessment of distress severity and categorization of repair priority

Root Cause Analysis
– Continuous exposure to moisture from adjacent drains
– Corrosion-induced cracking and delamination
– Deficient concrete compaction during original construction
– Poor surface protection and aging

Structural Strengthening Design
Based