I wasn't initially excited to tour a research lab when I was helping out with our second year ASM teacher camp at Rowan University, but the research lab where they were working on different formulations of roadbed asphalt was surprisingly fascinating.
They went over the ingredients in modern asphalt and how they were adjusting the ingredients of the mixture to vary the performance in different climate conditions. It was a really interesting lab tour, easily the best of the three labs that we got to tour on that field trip.
Clearly there's a lot to learn about pavement, especially when I hear - from the above video - that asphalt roads can be recycled pretty much indefinitely with only minor additions along the way.
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