A new standard, "Standard Practice for Solid Wall High-Density Polyethylene Conduit for Non-Pressure Applications Used for the Protection of Power and Telecommunications Cables," was recently ...

AUSTIN, Texas--(BUSINESS WIRE)--The American Association of State Highway and Transportation Officials (AASHTO) increased the design strength for concrete reinforcing steels to 100 ksi for bridges and ...

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 ...

The literature review presented in this chapter describes the DOT certification programs and how they were developed in different ways, in part due to the flexibility found in 23 CFR 637B. Included is ...

Cecil Jones, the state materials engineer for the North Carolina Department of Transportation, has been named chair of the American Association of State Highway Transportation Official’s (AASHTO) task ...