National Academies of Sciences%2c Engineering%2c and Medicine

State DOT Certification Programs for Materials Sampling and Testing Personnel

This chapter addresses the common practices and test methods (standards) that are used for certification programs for the basic material categories of soils and aggregate, asphalt mixture, and ...
For Construction Pros

Testing requirements of HMA during the construction process

Over 500 million tons of HMA are placed in the United States each year so it's important that the material be properly sampled and tested during construction to ensure satisfactory performance. When ...
For Construction Pros

Three Reasons To Abandon Asphalt Sampling Behind the Paver

Certain aspects of quality control testing hasn't changed all that much over the decades. While it is necessary and extremely important, when working with various Departments of Transportation (DOT) ...
National Academies of Sciences%2c Engineering%2c and Medicine

State DOT Certification Programs for Materials Sampling and Testing Personnel

The practices and methods listed were compiled from information found on the DOT’s website or from a document or documents on their website. AASHTO standard specifications begin with an “M,” practices ...