Testing Roller Compacted Concrete

The rising price of oil and bitumen is causing roller compacted concrete (RCC) to look more attractive. The challenge now is to define specifications and testing to ensure quality. Until December 2012, the feeling was that RCC was of no interest. However, some paving contractors have gotten involved with RCC and have seen the potential. The cost of asphalt pavements has gone up astronomically in the last four years. Bitumin, which is the most costly part of asphalt, is a derivative of crude oil. However, before some specifiers will consider RCC as an alternative to asphalt, a few issues need to be addressed, not the least of which is the perception that RCC can be somewhat unpredictable when it comes to quality. The crucial element is water content. If it’s too wet or too dry, it’s a problem. There are concerns around quality and how accurately the parameters can be controlled. Research is ongoing to develop a standard test method for producing cylindrical specimens for test RCC and in Europe specifications are currently being rewritten to include RCC.

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  • English

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Filing Info

  • Accession Number: 01491806
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Aug 23 2013 1:01PM