Infrasense was recently out in Big Sky Country scanning 31 bridge decks primarily located between Missoula and Glendive, Montana. The deck condition evaluations utilized a combination of ground penetrating radar, infrared thermography, rapid automated sounding, and high-resolution visual methods. Targeted locations will also be tested for chloride ion concentration on select decks.
In early autumn of 2020, Infrasense headed to the Hoosier state to perform multi-phase condition surveys on 71 bridges decks as part of an Indiana DOT study carried out by Purdue University. A suite of nondestructive testing technologies were deployed across four groups of bridge decks that were selected using different sets of objectives. The…
Infrasense recently evaluated the condition of 41 bridge decks located in northcentral Wisconsin. The deck evaluations utilized vehicle-based infrared thermography, high-resolution video, and ground penetrating radar. All testing was carried out at a rolling speed, which allowed for spot verification via hammer sounding. Following the field surveys, the data was transferred to Infrasense’s headquarters in…
Infrasense would like to congratulate our founder and senior principal Ken Maser on receiving the ASCE’s 2019 Wilbur S. Smith Award in recognition of his outstanding accomplishments in Civil Engineering. Ken is a leader in the field of Nondestructive Evaluation and its application to highway infrastructure. He will be presented with the award at the…
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…
Infrasense completed a vehicle-based inspection of a bridge deck in Virginia Beach, Virginia. The methods of testing included Ground Penetrating Radar (GPR), Infrared Thermography (IR) and High-Resolution Imaging (HRI). Testing was performed in August and September, with the goal of mapping rebar depth and quantifying areas of concrete deterioration, rebar-level delamination, spalling, and patching. The…
Infrasense mobilized from Boston to Virginia to survey Norfolk’s 64,000 square foot Granby Street Bridge. The GPR survey was done in March, and the IR survey was done in April, when the weather conditions were sufficient for revealing subsurface delaminations. The GPR survey was performed at normal driving speed, and IR was done at a…
Infrasense recently completed an internal research effort to assess the feasibility and accuracy of aerial imaging for mapping bridge deck conditions. The results of this study provided support for implementation on upcoming projects. The primary advantage of the aerial method is its efficiency. Data can be collected for hundreds of bridge decks in a single…
Infrared thermography is one of our primary testing technologies for Wisconsin bridge deck condition evaluations, and we are always seeking ways to improve our testing methods. In 2017, this research really took flight – literally! Infrasense has also been working with a national aerial imaging company to collect and analyze infrared and visual imagery from…