Browse PDH courses
Soil Corrosivity and Metal Loss in Earth Retaining and Foundation Systems
MSE wall reinforcement and driven piles are usually protected from corrosion by extra steel alone, sized to corrode away over the service life. How much extra steel to provide is the subject here. Built on the National Academies' 2023 study Corrosion of Buried Steel at New and...
Recycled Plastics in Asphalt Pavements: Current Evidence and Practice
Recycled plastic is being pitched as an asphalt additive, and the marketing has moved faster than the research. The course sorts out what the completed studies actually found, drawing on the national laboratory study of dry-process addition (NCHRP Research Report 1143), the TR...
Recycled Binder Availability: Testing, Design, and Specification
Some of the binder in reclaimed asphalt pavement stays trapped inside its particles and never blends into the new mixture. Standard volumetric design assumes all of it does. Measured availability runs anywhere from about 40 to 100 percent, while agencies that apply any discoun...
Supplementary Cementitious Materials (SCMs) in Modern Highway Construction
This course draws on the NCHRP Supplementary Cementitious Materials (SCMs) in Modern Highway Construction synthesis to examine how state DOTs specify and use SCMs in concrete pavements and structures. The course covers conventional SCMs (fly ash, slag cement, silica fume), nat...
Automated Machine Guidance in Heavy Civil Construction
This course covers the principles and applications of automated machine guidance (AMG) in heavy civil construction, drawing from FHWA's Automated Machine Guidance in Heavy Civil Construction (FHWA-HRT-16-031). Topics include 3D engineered model development, GNSS and total stat...
Fundamentals of 3D Concrete Printed (3DCP) Construction Systems
This course introduces the fundamentals of three-dimensional concrete printing (3DCP) construction systems, drawing from HUD's research report Fundamentals of 3D Concrete Printed (3DCP) Construction Systems. Topics include 3DCP technology types, major manufacturers, structural...