A new field tool is changing the way contractors and inspectors measure compacted aggregate base depth — and it’s earning attention from state Departments of Transportation. The Base Course Pro, ...

Sub-bottom profilers extend hydrographic surveys beneath the seafloor. These systems emit low-frequency signals capable of penetrating sediment layers, revealing subsurface structures such as buried ...

Digital calipers are handy measuring tools for small items, those with uneven dimensions, or those that are unable to be measured with a standard ruler.