Скачать или смотреть Two-lift Concrete Pavement Construction in Kansas: Part 6 of 14

Workers placing and paving the top lift of concrete pavement using the two-lift concrete construction process in Kansas, part of KDOT's two-lift concrete pavement trial.

Two-lift concrete pavement construction is a type of concrete pavement design. Instead of placing just one layer of concrete, two-lift concrete pavement construction uses two. In a process that uses two mixing plants and two pavers, a second layer of concrete is poured while the first is still wet. This can produce a concrete road that is more weather-resistant, safer, and quieter than traditionally-constructed single layer pavements.

The FHWA officially recommended two-lift concrete construction after an international tour to assess pavements in 2006—they found that the process is an important step in creating long-life concrete pavements. This increased level of pavement sustainability is added to by the fact that two-lift concrete pavement can easily accommodate recycled and economical materials in its bottom layer: the critical, more expensive materials and aggregates can be saved for the thinner top layer of two-lift pavement.

For more about concrete pavement design and pavement engineering, visit http://www.TheTranstecGroup.com/services

For more about two-lift concrete, visit http://www.fhwa.dot.gov

ABOUT THE TRANSTEC GROUP:
The Transtec Group is a pavement engineering firm that provides award-winning expertise in pavement design, construction, rehabilitation, research and transportation software development. Transtec is based in Austin, Texas and has served clients throughout the world since 1992.
http://www.TheTranstecGroup.com

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