You are being redirected because this document is part of your ASTM Compass® subscription.
    This document is part of your ASTM Compass® subscription.

    If you are an ASTM Compass Subscriber and this document is part of your subscription, you can access it for free at ASTM Compass

    Radiation-Induced Degradation of Concrete in NPPs

    Published: 01 November 2018

      Format Pages Price  
    PDF (1.17 MB) 11 $25   ADD TO CART
    Complete Source PDF (77.14 MB) 631 $175   ADD TO CART

    Cite this document

    X Add email address send
      .RIS For RefWorks, EndNote, ProCite, Reference Manager, Zoteo, and many others.   .DOCX For Microsoft Word


    Nuclear power plant life extensions to 60 and potentially 80 years of operation have renewed interest in long-term material degradation. One material being considered is concrete. Swelling of aggregates driven by radiation-induced displacements of atoms is currently considered to be the most probable leading contributor to the radiation-induced degradation of concrete mechanical properties. In the biological shields of nuclear plants, atom displacements are dominated by neutron contributions while gamma-ray contributions are negligible. For several minerals that are common constituents of aggregates in concrete, it was shown that approximately 95 % of the displacement per atom is generated by neutrons with energies above 0.1 MeV. Neutrons with energies above 1 MeV contribute only approximately 20 % to 25 % to the displacement per atom. Therefore, if neutron fluence is used as the correlation parameter for the concrete degradation, the 0.1 MeV neutron energy cutoff should be used for the fluence. Based on the projected neutron fluence values (E > 0.1 MeV) in the concrete biological shields of the U.S. pressurized water reactor fleet and the available data on radiation effects on concrete, some decrease in mechanical properties of concrete cannot be ruled out during extended operation beyond 60 years.


    concrete, degradation, atom displacements, neutron fluence, gamma rays, radiation-induced volumetric expansion (RIVE)

    Author Information:

    Remec, Igor
    Oak Ridge National Laboratory, Oak Ridge, TN

    Rosseel, Thomas M.
    Oak Ridge National Laboratory, Oak Ridge, TN

    Field, Kevin G.
    Oak Ridge National Laboratory, Oak Ridge, TN

    Le Pape, Yann
    Oak Ridge National Laboratory, Oak Ridge, TN

    Committee/Subcommittee: E10.05

    DOI: 10.1520/STP160820170059