UTM Surveys — Quantifying Corrosion Loss in Steel Piles

What is Ultrasonic Thickness Measurement (UTM)?

KCC carries out underwater ultrasonic thickness measurement (UTM) surveys of steel piles and marine structures to quantify corrosion loss and remaining wall thickness. UTM data is essential for structural assessment and maintenance planning.

What's Included

Calibration of UTM equipment to pile material
Systematic thickness readings at defined grid points on pile surface
Recording of minimum, maximum, and average thickness at each measurement zone
Comparison of results against original design thickness
Formal UTM report with corrosion loss assessment and structural recommendations

Why This Matters

Visual inspection alone cannot quantify the extent of corrosion loss in steel piles. UTM surveys provide the quantitative data needed to assess remaining structural capacity and plan targeted remediation works.

Related Services in Underwater Pile Inspection

Visual Condition Survey

Diver-conducted close-visual inspection of pile surfaces, recording marine growth, corrosion, impact damage, and concrete spalling.

Concrete Pile Assessment

Diver inspection and assessment of concrete pile condition including spalling, cracking, and reinforcement exposure.

Pile Cap Inspection

Underwater inspection of pile caps and connection zones for cracking, spalling, and joint deterioration.

Part of

Subsea Inspection

KCC provides comprehensive subsea inspection services across marine infrastructure, port assets, and

View all Subsea Inspection services

IMCA ADCI HSE HKCP

IMCA · ADCI · HSE · HKCP Compliant

All diving operations conducted to IMCA, ADCI, HSE & HKCP standards

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