The Effects of Nuclear Radiation on the Mechanical Properties of Concrete


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Title: The Effects of Nuclear Radiation on the Mechanical Properties of Concrete

Author(s): H.K. Hilsdorf, J. Kropp, and H.J. Koch

Publication: Special Publication

Volume: 55


Appears on pages(s): 223-254

Keywords: aggregates; compressive s ties; gamma rays; mix proportioning; radiation shielding; radiation tests mal conductivity; thermal expansion trength; concretes; modulus of elastic ; reviews; tensile creep proper-ity; neutrons; strength; ther-

Date: 8/1/1978

Previously published experimental data on the effect of nuclear radiation on the properties of plain concrete are summarized and evaluated. Neutron radiation with a fluence of more than 1 x 1019 n/cm 2 may have a detrimental effect on concrete strength and modulus of elasticity. Thermal coefficient of expansion, thermal conductivity and shielding properties of concrete are little affected by radiation. Radiation damage is mainly caused by lattice defects in the aggregates which cause a volume increase of aggregates and concrete. Different aggregates show different radiation resistance so that the selection of suitable aggregates is the most important parameter in the design of a radiation resistant concrete.