From density tests on a Mongolian gold mine project to an all-singing, all-dancing asphalt tester, Kristina Smith reports on some of the latest new products in materials testing. Perhaps understandably, nuclear density gauges can present contractors with some order to move them at all. “One of the problems with nuclear soil gauges is the restrictions on movement,” said John Lamond, Manufacturing. “If you are a contractor projects cross-border, it’s a real challenge to move a nuclear density gauge around.”
As roads become more advanced and surface performance expectations rise, traditional hot bitumen is no longer the only material in demand. Across the globe, highways projects are increasingly relying on high-performance binders, from polymer-modified bitumen (PMBs) to specialist emulsions and tack coats designed for specific temperature conditions or traffic volumes.
