By: Jan R. Prusinski, PE
The National Concrete Pavement Technology Center (CP Tech Center) at Iowa State University has recently published a comprehensive "Guide to Full-Depth Reclamation (FDR) with Cement." This 90-page manual was developed in cooperation with the Portland Cement Association and many product experts from around the country, including CCT's own Matthew Singel. It will serve as a centerpiece in CCT's just-announced one-day seminar series "Best Practices for Cement Stabilization and Roller-Compacted Concrete Pavements," to be held at seven Texas locations between August and December, 2017.
FDR is often the lowest-cost method of recycling failed asphalt pavements into highly durable bases. It is an in-place operation that pulverizes the existing surface and base, then adds a small amount of cement to provide a fast-curing and long-lasting base that stands up to heavy trucks and saturated conditions. Construction is fast, often completed in one day, so light traffic can be applied afterwards; and the need to excavate huge amounts of old material and replace it with new base material--and the associated heavy truck traffic--is avoided.
The guide provides not only an introduction to FDR with cement, but it also comprehensively covers key topics:
If you are interested in being trained in this technique, using the new guide, please consider attending one of the CCT's 7 upcoming seminars. To find out more about FDR, and download the guide, visit the CP Tech Center's website.
By: Jan R. Prusinski, PE
San Antonio's Belknap Place is over a century old, and still going strong. Last May, it was commemorated with a Texas State Historical Marker, and in December the American Concrete Pavement Association presented its Longevity Award to the City for Belknap Place. As President Trump contemplates a $1 trillion infrastructure investment, and the ASCE discusses America's overall D+ in its 2017 Infrastructure Report Card, Belknap Place stands as a monument to wise public investment in a resilient technology. Click here for a Belknap Place slideshow and report.
The Cementx Pavement Blog seeks to make pavement owners, engineers and contractors smarter about selecting, designing, constructing and maintaining pavements. New blog postings began February 1, 2017; however, we carried over pavement-related blog postings from our older blog, the "Texas Cement and Concrete Blog," which ran until December 2016.