Lab Accreditation

Recent advances in laboratory polishing and friction testing now provide a better assessment of friction that considers the entire gradation in an asphalt mixture rather than a single aggregate source.

Road Science Gets the Credit Road Science, a Division of ArrMaz, announced that it successfully completed a comprehensive American Association of State Highway and Transportation Officials (AASHTO) On-Site Assessment and Quality Management System Evaluation of its research and development and customer support laboratory in Tulsa, Oklahoma. The review was conducted by AASHTO re:source over a […]

The Alaska Department of Transportation & Public Facilities is on the front line when it comes to promoting new technologies that give them continuous, full coverage asphalt pavement density testing for road paving projects. Continuous testing uses multiple inputs to look for failure zones and has a high probability of detecting defects before they lead […]

Editor’s Note: Read the February issue for findings from the Florida Department of Transportation’s experience with HFSTs over time. High friction surface treatments (HFST) provide enhanced pavement friction in critical safety locations such as horizontal curves and bridge decks. HFSTs are a thin layer of durable, high friction aggregate bonded to an existing pavement surface […]

Typically, standards voted on within the International Organization for Standardization (ISO) don’t impact the asphalt industry directly, according to Ray Brown, Ph.D., director emeritus at the National Center for Asphalt Technology (NCAT) at Auburn University. This truism has changed to some extent with the adoption of ISO 17025 calibration of measurement standards by the American […]

In the past, technology hadn’t paved the way for the successful use of ground tire rubber (GTR) in asphalt mix designs the way it has today. Now we have the means to grind tires “finer.” We can use advanced mixing chemicals that facilitate the use of wet process and dry crumb rubber modified asphalt cements […]

It may sound like a contradiction to use combustion to lower emissions, but industry has both smart operations and ever-advancing technology to reach the goal of more environmentally friendly output. From training your plant operator on best practices to tuning your existing burner for optimum efficiency for your specific production capacity to installing newly designed […]