PEC is the first consultant engineering firm in the state of Utah to invest in the latest non-destructive testing methods for reinforced concrete paving. Portland Cement Concrete Paving (PCCP) requires large epoxy-coated dowels, strategically placed in the wheel paths of each lane. These dowels are placed longitudinally (i.e., parallel to the flow of traffic) to tie each control panel of pavement together. Additionally, 30-inch long transverse bars are inserted perpendicularly to the dowels to tie the other direction. Hundreds of thousands of these reinforcing elements are placed in the concrete roads throughout the state each year; however, they are only as effective as their accurate placement. Any twist, tip, or skew makes them less effective, and can even jeopardize the road or bridge quality.
This new scanning machine is equipped with 10 sensors that are able to penetrate deep into the newly placed concrete pavement. It uses the natural magnetic properties of the steel reinforcement to calculate the depth and any variations to the angle of the bar. The data is displayed to our certified inspectors and operators of the machine and recorded on the device as well. If something is found to be in-compliant, the location is noted and the failing area removed and replaced, if necessary. Unlike old scanners, our new model includes a laser guide in order to help the operator move down each joint of pavement in straight passes. The machine is a walk-behind type and can easily be operated by a single qualified person. Several members of our team have already been trained on this revolutionary equipment, and many more are to follow.