AMES, Iowa – A train of heavy equipment slowly worked its way across 8.6 miles of a northeast Iowa county road last summer. The corn growing along C14 just south of West Union was dark green and high.

High performance ‘green’ pavement preservation materials are here to stay as five of the Pacific Northwest’s airports make the switch. Among those to recently install the AROS technology based ...

AMES, Iowa – Alireza Sassani turned a switch and sent 60 volts of electricity into a small block of concrete. A few minutes later the Iowa State University doctoral student took some measurements and ...