National Institute of Standards and Technology April 13, 2016 – Federal Register Recent Federal Regulation Documents

The National Institute of Standards and Technology (NIST) is establishing the Non-destructive Evaluation Techniques for Assessing alkali-silica reaction (ASR) Degradation of Concrete Consortium (``Consortium'') and invites organizations to participate in this Consortium. The Consortium will examine non-destructive evaluation (NDE) technologies that can be used to determine the presence and the evolution of ASR in concrete members. This notice is the initial step for the Consortium to provide participants' access to NIST concrete specimens constructed as large reinforced concrete blocks with ASR reactive aggregates (``NIST ASR Specimens''). Participants will use NIST ASR Specimens to determine whether NDE technologies are effective in identifying and quantifying degree of expansion and degradation of concrete members due to ASR. Participation in this Consortium is open to all eligible organizations, as described below.