Impact of Neutron Flux on Quartz's Rate of Expansion
Radiation-Induced Volumetric Expansion (RIVE) pose concerns for concrete structures subjected to neutron flux and radiation that affect crystalline structures within aggregate. Such concerns are particularly relevant for research facilities and nuclear reactors, as RIVE is a factor that potentially shortens the lifespan of these structures through cracking due to temporary amorphization and subsequent volume increase in quartz. However, the understanding of RIVE within a nuclear power plant context is still not extensively studied.
A recent study by Ippei Maruyama et al., published in the Journal of Nuclear Materials, examined material samples in the LVR-15 research reactor in the Czech Republic. Their findings suggest that at neutron flux levels expected at a nuclear power plant's biological shield, the healing effect from recrystallization is likely to outweigh the damaging effects of amorphization, thereby minimizing RIVE damage.
This research builds upon earlier studies conducted at the University of Tokyo by Kenta Murakami et al., as well as by Chinese researchers, such as Weiping Zhang et al. in Nuclear Engineering and Technology. The study's authors recommend further validation of their findings through examining concrete samples from decommissioned nuclear power plants for signs of RIVE damage.
[Enrichment Data] Although Maruyama's study primarily focuses on the evolution of water content and carbonation in OPC cement paste under varying humidity conditions, it could offer insights into how concrete properties change under different conditions, potentially impacting broader discussions on radiation effects. Detailed findings on RIVE by Maruyama et al. can be found in scientific journals or research publications that concentrate on civil engineering and materials science in nuclear environments. These studies typically explore how neutron radiation affects the microstructure and mechanical properties of concrete, potentially leading to volumetric expansion and damage over time.
- The medical-conditions caused by RIVE in concrete structures, such as cracking and shortened lifespan, are of concern to the industry, particularly in the context of research facilities and nuclear reactors.
- In the realm of finance, investments in technology and energy sectors could be influenced by the understanding of RIVE, as it impacts the durability of concrete structures in nuclear power plants.
- Ongoing studies in the field of science, including those by Ippei Maruyama et al., are shedding light on RIVE, with potential implications for the protection and enhancement of concrete structures in various medical-conditions and industrial settings.
