Case Study: Corporate Plaza Basement Tanking
A 3-level corporate parking and office basement suffering annual monsoon flooding—tanked from the negative side with crystalline slurry and pressure injection, with zero tenant disruption.
The Challenge
- 01
Seasonal groundwater rise generated hydrostatic pressure against the retaining walls, flooding the lower parking level during heavy rain.
- 02
Construction joints and utility penetrations had become the primary water entry points across a 28,000 sq.ft footprint.
- 03
The building housed active offices and retail—waterproofing had to proceed after hours with full tenant protection.
The Engineering Solution
- 01
Crystalline slurry tanking applied to all interior faces, reactive to moisture and self-healing.
- 02
High-pressure PU foam injection into every active crack and construction joint.
- 03
PVC waterstop retrofit at utility penetrations and a perimeter French drain to relieve groundwater pressure.
Project Timeline
How It Was Done
Below-Grade Audit
Water table monitoring and joint-by-joint leak survey documented 14 active ingress points.
Pressure Injection
PU resin injected under pressure to seal active water flow before tanking began.
Crystalline Tanking
Three coats of crystalline slurry applied across all retaining walls and floor slabs.
Verified Dryness
Moisture readings confirmed below 10% across the basement before handover.
"They waterproofed our complex with zero disruption to tenants. Their 10-year warranty gave our investors the peace of mind they needed."
Sanjay Mehra
Facility Head, Corporate Plaza
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