Award Data

DUE TO THE DETERIORATION OF THE U.S. HIGHWAY SYSTEM'S PAVEMENTS AND BRIDGES, CONSTRUCTION REHABILITATION HAS BECOME A LARGE SCALE EFFORT. ONE OF THE SAFEST AND MOST EFFICIENT TECHNIQUES FOR TRAFFIC CONTROL DURING REHABILITATION OF DIVIDED HIGHWAYS IS TWO-LANE TWO-WAY OPERATION (TLTWO). IN THIS TECHNIQUE, ONE SIDE OF THE HIGHWAY IS CLOSED OFF FOR REPAIR WHILE THE OTHER IS PUT INTO TLTWO WITH CHANNE ...

Laser Technology Inc. (LTI) proposes a Phase II SBIR research project to further develop a Compact Shearography System, Analysis Method and Software for micro-crack detection in concrete. There is an urgent need to detect and characterize fine cracks in concrete that form because of various damage mechanisms including alkali-silicate reaction, delayed ettringite formation or frost damage. Fine s ...

A nondestructive evaluation method is proposed for imaging in-roadway sensors, anticipated to allow them to be located and evaluated in-situ. The techniques uses innovative step frequency GPR hardware together with new data collection and data processing methods to provide high-resolution images of in-roadway sensor features. Recent work by the proposed research team has already demonstrated im ...

Development of the basic EMAT based transverse rail defect detector has progressed toward finished form, as envisioned in the original solicitation. This modification is intended to produce a demonstratable version of a 2-rail detection system with automated signal interpertation. The objectives of this work are to: a. Further develop the system into a functioning 2-rail detection system, as ori ...