Equipment World Digital Magazine
Issue link: https://read.dmtmag.com/i/578350
density asphalt pavement." "As soon as RCC is down and compacted, you can get at least some traffi c on it," says ACPA technical services engineer Eric Fer- rebee. "That's because a lot of the strength is gained from the aggre- gate gradation, in which it packs so well it can begin carrying loads." Several things have happened in the past few years to promote RCC use: The RCC Pavement Council – a coalition of contractors and ce- ment, construction equipment and material suppliers – formed in 2014 to underwrite marketing and research into RCC pave- ments. Working closely with the American Concrete Pavement Association, Portland Cement Association, and National Ready Mixed Concrete Association, it supplements research and promotion undertaken by other industry partners. ACPA's RCC Task Force late last year released an updated RCC guide specifi cation, Roller-Com- pacted Concrete Pavements as Exposed Wearing Surface (Ver- sion 1.2). (This can be viewed by doing an internet search for "ACPA roller compacted con- crete specifi cation.") The task force is also working with ACPA to develop RCC "wiki" pages, where participants provide RCC best practice information. Other activities include incorporating a new RCC fatigue model into de- sign software and perhaps a RCC contractor recognition program. This May, the Federal Highway Administration's Highways for Life program released a report on a RCC demonstration project in Arkansas, where a local road serving the natural gas Fayetteville Shale Play was rebuilt using RCC. The report details how lower maintenance costs over the next October 2015 | EquipmentWorld.com 50 road science | continued Photo: ACPA At 2013 workshop, RCC shoulder is placed on Indiana S.R. 25 near Delphi.