Minnesota's weather — extreme summer heat and brutal winter cold — can do a number on asphalt roads, causing stiff and brittle surfaces to crack and break apart. Minnetonka-based Cargill and Hennepin ...

The National Academies of Sciences, Engineering, and Medicine are private, nonprofit institutions that provide expert advice on some of the most pressing challenges facing the nation and world. Our ...

Warm mix asphalt (WMA) continues to gain momentum in the industry. As a result, tests are continuously being completed throughout the country to monitor the results of WMA compared to hot mix asphalt.

Asphalt mix design equipment: Includes Superpave gyratory, Hveem and Marshall Compactors. Stabilometers and Marshall Press. Asphalt mixture performance tester (AMPT): Measures mechanical properties of ...

Troxler Electronic Laboratories has added the Enhanced RoadReader Plus Model 3451 to its line of nuclear moisture density gauges. The TransTech PQI301 is a non-nuclear pavement quality indicator ...

Laboratories testing asphalt, a key ingredient in surfacing roads, have been falsifying results of mixtures made at plants to inflate their apparent quality. The manipulation of figures can affect ...

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Testing laboratories are utilized by all manner of businesses to provide objective analytical data on the quality of a product or a process. Some companies look to testing labs for product ...