Roller Compacted Concrete - Design and Construction of Water Control Structures

In 1980, Roller Compacted Concrete (RCC) was utilized to construct the Willow Creek gravity dam in Oregon. Since that time, there have been over 200 RCC projects in the United States. With applications such as gravity dams, overtopping protection, buttresses, guide walls at locks, and service spillways, RCC has proven to be a durable and economical solution to difficult engineering problems throughout the US. Internationally, RCC gravity and arch dams are common and routinely have heights exceeding 300 feet and placement volumes in the millions of cubic yards.

This webinar will provide a general overview of the development of RCC and how this material is being used in dams and spillways. Recent design and construction trends will be presented in the areas of mix designs, jointing, facing systems, and placement procedures.

The primary topics of the webinar are as follows:

1. The development of RCC: The early years.
2. Mix proportioning to develop fresh and harden properties.
3. Applications during the first 31 years.
4. Construction means and methods
5. Performance

Speaker and Presenter Information

Randy Bass is a professional engineer and a graduate of Georgia Tech with a BCE (1972) and a MCE degree (1977). His career with dam engineering started in 1978 when he worked for seven years with the Georgia Safe Dams Program. He worked for Dames and Moore for seven years and, prior to joining Schnabel Engineering in 2004, was the water resources engineer with the Portland Cement Association. At PCA, Randy provided education resources to engineers, contractors, and regulatory agencies on the usages of RCC and soil cement in water resources applications. Randy is a principal with Schnabel and is active in the ASDSO and the USSD associations.

Relevant Government Agencies

Army, Dept of Energy, Dept of Homeland Security, Dept of the Interior, Other Federal Agencies, State Government, County Government, City Government, Municipal Government, FEMA, Federal Government, State & Local Government