Tag: Asphalt

How Do You Know What Roads are Good Candidates for Mill and Overlay?

By Mark Petersen, PE Structural layer coefficient. Excavation below subgrade. K values. Cold in-place recycling. If those terms aren’t familiar to you, not to worry. Transportation engineers are well-versed in the vocabulary of road repairs, and you can rest assured that what’s happening on the other side of those orange barrels is for the benefit… Read More »

Concrete vs. Asphalt: What’s the Best Roadway Surface?

By Mark Petersen, PE Budgets for roadways are tight, and elected officials have to seek the most value for limited construction and maintenance dollars. Unlike homeowners contemplating a new driveway, municipalities may be looking at miles of surface that must safely accommodate hundreds of vehicles a day. So which is the best investment, asphalt or… Read More »

Highways Designed with Snow and Cold in Mind

By Eric Sorensen, PE From temperature extremes to drainage, roadway designers factor in the snow and cold when designing for our northern and mountain states. Let’s look at the properties of various pavement types and the basics of how that pavement is placed and treated for optimal performance in climates plagued by cold and snow.… Read More »