Assessing Aggregates for Radiation-Shielding Concrete

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May 1, 2013

Methods for petrographic examination of high-density and boronbearing aggregates

Radiation-shielding concrete (RSC) is used in nuclear power plants, health care facilities conducting radiation therapy, nuclear research facilities, and storage/transport casks for radioactive waste. In RSC mixtures, high-density aggregates are used to attenuate gamma rays and light atomic weight aggregates are used to absorb neutrons, so their properties and proportions will affect a mixture's radiation-shielding characteristics.

Sang-yun Lee, Ph.D., P.E., Senior Petrographer, Donald Broton, Principal Scientist, and Ann Daugherty of the ACI Foundation authored this May 2013 Concrete International article.

View the Concrete International website for more details.

Source: Concrete International