Published January 2007 | Version v1
Journal article Metadata-only

14 MeV neutron irradiation experiment for low activation concrete

Creators

  • 1. Kumagai Gumi Co. Ltd., Technical Research and Development Institute, Tsukuba, Ibaraki (Japan)
  • 2. Kumagai Gumi Co. Ltd., Tokyo (Japan)
  • 3. Japan Atomic Energy Agency, Fusion Research and Development Directorate, Naka, Ibaraki (Japan)

Description

A low activation concrete was developed. A part of its cement is changed by lime powders used as aggregate. The activation properties were evaluated by the 14 MeV neutron irradiation experiment. The result showed that the induced radioactivity of 24Na decreased about 1/7 times than the ordinary concrete. The low activation concrete will be applied to the irradiation shielding materials for the nuclear power plants, particles accelerator facilities, and medical irradiation facilities. Design of mixing, basic concept of mixing, materials, activation of concrete, amount of total sodium, chemical analysis, neutron irradiation experiment, and examples of execution are stated. (S.Y.)

Additional details

Publishing Information

Journal Title
Semento Konkurito
Journal Issue
no.719
Journal Page Range
p. 26-31
ISSN
0371-0718

INIS

Country of Publication
Japan
Country of Input or Organization
Japan
INIS RN
38062310
Subject category
S36: MATERIALS SCIENCE;
Descriptors DEI
CEMENTS; CHEMICAL COMPOSITION; CONCRETES; IMPURITIES; LIMESTONE; NEUTRONS; PHYSICAL RADIATION EFFECTS; RADIATION DOSES; RADIATION PROTECTION; RADIOACTIVATION; RADIOACTIVITY; SHIELDING MATERIALS; SODIUM; SODIUM 24
Descriptors DEC
ALKALI METALS; BARYONS; BETA DECAY RADIOISOTOPES; BETA-MINUS DECAY RADIOISOTOPES; BUILDING MATERIALS; CARBONATE ROCKS; DOSES; ELEMENTARY PARTICLES; ELEMENTS; FERMIONS; HADRONS; HOURS LIVING RADIOISOTOPES; ISOMERIC TRANSITION ISOTOPES; ISOTOPES; LIGHT NUCLEI; MATERIALS; METALS; MILLISECONDS LIVING RADIOISOTOPES; NUCLEI; NUCLEONS; ODD-ODD NUCLEI; RADIATION EFFECTS; RADIOISOTOPES; ROCKS; SEDIMENTARY ROCKS; SODIUM ISOTOPES