By Genevieve Theriault
From the roof over our heads to the ground under our feet, asphalt plays an integral role in modern-day society. Beyond these practical uses, asphalt has come to serve as a tool to bring communities together, increase traffic safety and improve infrastructure across the U.S. as well as internationally.
(more…)Evolution in road structural design
By Bob Humer, P.E.
From ancient times until the 1920s pavement structures were designed based on experience. Stone-paved streets originating 6,000 years ago in Mesopotamia (modern-day Iraq), were later followed by the Romans constructing more elaborate stone-paved roads with thick crushed base layers for drainage.
