Impact Echo Home
Case 1 | Case 2 | Case 3 | Case 4 | Case 5 | Case 6 | Case 7 |
About us
Products
Products
New Products
Support
Success Stories
Case Studies
Contact us
Ask the Expert
Home

Case Study #1: Cracking in Deck of Reinforced Concrete Railway Bridge, Denmark

  

Problem: Structural cracking due to alkali-aggregate reaction in 1-m thick reinforced deck of railway bridge.

Results: Impact-Echo tests detected horizontal cracking at mid-depth over entire span, a problem unknown to the bridge engineers.

Verification: Cores (and mode of failure during demolition).

Outcome: Bridge judged unsafe and demolished. When first hit with wrecking ball, lower half of deck separated almost as one piece, and fell to the road below.


Back to Case Studies

 

Home | About us | Products | New Products | Services | Technology | Success Stories | Case Studies | Contact us | Ask the Expert

Copyright 1997-2005 by Impact-Echo Instruments, LLC. All rights reserved. IEI is a trademark of Impact-Echo Instruments, LLC.
Other products and companies referred to herein are trademarks or registered trademarks of their respective companies or mark holders.