Structural Condition Assessment

 

As a result of research funding from the National Cooperative Highway Research Program, Olson Engineering developed the Sonic Surface Scanner (S3) based on the Impact Echo (IE) test method.

Olson's S3 is the most technically advanced system for structural condition assessment to date. No other system on the market tests for both top and bottom concrete deck delaminations, while performing over 20,000 impact echo tests in 1 hour.

For decks with additional problems such as freeze-thaw cracking or alkali-silica reaction cracking damage, Spectral Analysis of Surface Waves (SASW) tests can be performed on bridge decks at the same time as Impact Echo tests to evaluate complete bridge deck integrity and provide many benefits over traditional chain dragging of bare concrete decks including:

  • Highly accurate mapping of top deck steel delaminations to 1 foot or less
  • Detects bottom deck rebar delamination in areas without top delamination
  • Thickness profiling of sound deck areas
  • Complete deck integrity evaluations with combined IE-SASW scanning
  • Highly accurate bridge damage maps for repair bids

Applicable On:

Concrete Decks

Parking Decks

Bridge Decks

Industrial Building Floors

Etc.

Test For:

Top and Bottom Concrete Delaminations

Bridge Deck Scanning, Impact Echo IE, Olson Engineering
Bridge Deck Scanning, Impact Echo IE, Olson Engineering
Bridge Deck Scanning, Impact Echo IE, Olson Engineering

The Sonic Surface Scanner

Diagnose Delamination

Detect corrosion delamination at top and bottom rebar mat

Locate Defects

Locate cracks, voids, honeycombing, and debonding of concrete deck overlay and asphalt pavement lifts

Bridge Deck Scanning, Impact Echo IE, Olson Engineering
Rapid Testing

Scan large areas quickly at 6 inch
(15 cm) intervals

Determine Thickness

Measure concrete slab thickness on undamaged slabs