Hydrogen Production and the Stability of Hardened Cement Paste under Gamma Irradiation
Source abstract
Abstract
Hardened cement pastes (HCP) with different water contents were irradiated with gamma rays under different temperatures and irradiation dose rates. The relationship between the quantity of hydrogen gas produced and the water content as well as the stability of HCP under gamma irradiation was evaluated. It is experimentally confirmed that hydrogen gas was mainly produced from the evaporable water. The G value of the hydrogen production assuming the radiation energy absorbed by the total water composed of chemically bound water (CBW) and evaporable water was ranging from 0.03 to 0.42. The G value of the hydrogen production for CBW was ranging from 0.03 to 0.07, which were an order of magnitude smaller than that of the bulk water (0.45).
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Research context
OpenAlex topics: Concrete and Cement Materials Research · Nuclear materials and radiation effects · Magnesium Oxide Properties and Applications
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Graduate School of Environmental Studies, Nagoya University, Japan.
Nuclear Safety Division, Mitsubishi Research Institute, Inc., Japan.
Nuclear Power Department, Kajima Corporation, Japan.
References (33)
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