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Title: Radiation effects in concrete for nuclear power plants, Part II: Perspective from micromechanical modeling

Abstract

The need to understand and characterize the effects of neutron irradiation on concrete has become urgent because of the possible extension of service life of many nuclear power generating stations. Current knowledge is primarily based on a collection of data obtained in test reactors. These results are inherently difficult to interpret because materials and testing conditions are inconsistent. A micromechanical approach based on the Hashin composite sphere model is presented to derive a first-order separation of the effects of radiation on cement paste and aggregate, and, also, on their interaction. Although the scarcity of available data limits the validation of the model, it appears that, without negating a possible gamma-ray induced effect, the neutron-induced damage and swelling of aggregate plays a predominant role on the overall concrete expansion and the damage of the cement paste. Finally, the radiation-induced volumetric expansion (RIVE) effects can also be aided by temperature elevation and shrinkage in the cement paste.

Authors:
 [1];  [1];  [1]
  1. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Publication Date:
Research Org.:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1265292
Alternate Identifier(s):
OSTI ID: 1245308
Grant/Contract Number:  
AC05-00OR22725
Resource Type:
Accepted Manuscript
Journal Name:
Nuclear Engineering and Design
Additional Journal Information:
Journal Volume: 282; Journal ID: ISSN 0029-5493
Publisher:
Elsevier
Country of Publication:
United States
Language:
English
Subject:
22 GENERAL STUDIES OF NUCLEAR REACTORS; 36 MATERIALS SCIENCE; Concrete; neutron; amoprhization; swelling

Citation Formats

Le Pape, Yann, Field, Kevin G., and Remec, Igor. Radiation effects in concrete for nuclear power plants, Part II: Perspective from micromechanical modeling. United States: N. p., 2014. Web. doi:10.1016/j.nucengdes.2014.10.014.
Le Pape, Yann, Field, Kevin G., & Remec, Igor. Radiation effects in concrete for nuclear power plants, Part II: Perspective from micromechanical modeling. United States. https://doi.org/10.1016/j.nucengdes.2014.10.014
Le Pape, Yann, Field, Kevin G., and Remec, Igor. Sat . "Radiation effects in concrete for nuclear power plants, Part II: Perspective from micromechanical modeling". United States. https://doi.org/10.1016/j.nucengdes.2014.10.014. https://www.osti.gov/servlets/purl/1265292.
@article{osti_1265292,
title = {Radiation effects in concrete for nuclear power plants, Part II: Perspective from micromechanical modeling},
author = {Le Pape, Yann and Field, Kevin G. and Remec, Igor},
abstractNote = {The need to understand and characterize the effects of neutron irradiation on concrete has become urgent because of the possible extension of service life of many nuclear power generating stations. Current knowledge is primarily based on a collection of data obtained in test reactors. These results are inherently difficult to interpret because materials and testing conditions are inconsistent. A micromechanical approach based on the Hashin composite sphere model is presented to derive a first-order separation of the effects of radiation on cement paste and aggregate, and, also, on their interaction. Although the scarcity of available data limits the validation of the model, it appears that, without negating a possible gamma-ray induced effect, the neutron-induced damage and swelling of aggregate plays a predominant role on the overall concrete expansion and the damage of the cement paste. Finally, the radiation-induced volumetric expansion (RIVE) effects can also be aided by temperature elevation and shrinkage in the cement paste.},
doi = {10.1016/j.nucengdes.2014.10.014},
journal = {Nuclear Engineering and Design},
number = ,
volume = 282,
place = {United States},
year = {Sat Nov 15 00:00:00 EST 2014},
month = {Sat Nov 15 00:00:00 EST 2014}
}

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Cited by: 48 works
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Works referencing / citing this record:

Examination of gamma‐irradiated calcium silicate hydrates. Part I: Chemical‐structural properties
journal, May 2019

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Facile emulsion mediated synthesis of phase-pure diopside nanoparticles
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Facile emulsion mediated synthesis of phase-pure diopside nanoparticles
journal, February 2018

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