Infrasense Carries Out Nondestructive Infrared Evaluation of Bridge Deck in Wisconsin
LA CROSSE, Wis. (PRWEB) February 05, 2019 -- This past summer, Infrasense surveyed a bridge deck in La Crosse, Wisconsin using infrared for deck delamination detection according to ASTM D 4788 – 03. The equipment setup involved a dedicated vehicle mounted with a high resolution, distance triggered FLIR infrared camera synced up with a high-resolution visual spectrum camera. Both devices capture a whole lane width with each pass. Each pass was conducted at driving speed, with no disruption to traffic, and the 70-80-degree (F) temperatures made for a textbook day of surveying with outstanding data quality.
After collection, Infrasense also analyzed the data. The infrared data is reviewed simultaneously with the video data to identify delaminated areas vs. surface features; such as oil stains, sand, or debris. The white, blotchy areas that appear in the infrared data have a relatively higher temperature than their surroundings. This differential heating reveals a thermal barrier produced by a subsurface planar void, or delamination.
The client was provided with a table of quantities including the total area of delaminations, patched areas, and spalls. This same information was also provided in a digital plan view condition map, where the locations of each feature were mapped out.
About Infrasense, Inc.
Since 1987, Infrasense, Inc. has applied advanced technologies to address the most difficult challenges in subsurface scanning. Infrasense's engineers nondestructively extract critical information from a diverse range of structures. In addition to providing ongoing subsurface evaluation services to clients across the country, the firm has also conducted numerous research programs to advance the field of subsurface detection and nondestructive evaluation. To learn more about Infrasense and the services we provide, visit our website:
http://www.infrasense.com
Lori McCormick, Infrasense, Inc., http://www.infrasense.com, +1 (781) 281-1686, [email protected]
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