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Use of natural and archaeological analogs to validate long-term behaviour of HLW glass in geological disposal conditions

机译:使用天然和考古类似物验证高放废物玻璃在地质处置条件下的长期行为

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Some basaltic and Roman glasses have been studied in order to validate the predictive models developed for assessing the long-term behaviour of nuclear glass. Leaching behaviour ofbasaltic glass allows to validate the key mechanisms and the order of magnitude of glass packages lifetime in a stable clayey formation(French reference concept for a geological disposal of high level waste). The study of Roman glass blocks altered during 1800 years in a marine environment give new insight on the basic mechanisms involved in confined media(fractures and small cracks). Results show the importance of the coupling between transport of reactive species and chemical reactions. This study, still in progress, would allow to validate the reasoning by analogy.
机译:为了验证为评估核玻璃的长期行为而开发的预测模型,已经对一些玄武岩和罗马玻璃进行了研究。玄武质玻璃的浸出行为可以验证稳定的粘土地层中玻璃包装寿命的关键机理和数量级(高放废物地质处置的法国参考概念)。对在海洋环境中1800年间发生变化的罗马玻璃块的研究,为封闭介质(裂缝和小裂缝)的基本机理提供了新的见解。结果表明,反应性物质的传输与化学反应之间的耦合很重要。这项研究仍在进行中,可以通过类比验证推理。

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