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首页> 外文会议>RILEM Proceedings PRO 40; International RILEM Conference on the Use of Recycled Materials in Buildings and Structures vol.2; 20041108-11; Barcelona(ES) >SURVEYS CONCERNING THE CAPACITY OF SOME CEMENT- AGGREGATE COMBINATIONS TO MITIGATE THE GAMMA RADIATION
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SURVEYS CONCERNING THE CAPACITY OF SOME CEMENT- AGGREGATE COMBINATIONS TO MITIGATE THE GAMMA RADIATION

机译：有关某些水泥-骨料组合物缓解伽马射线辐射能力的调查

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摘要

In the context of the recent nuclear technical developments and implicitly, of increasing the risk of nuclear accidents, the problems related to the providing of an efficient biological protection have a major importance. The materials which can ensure the reduction of the radiation intensity up to the admissible limit, are in a large quantity. The only necessary condition is that the thickness of the material layer to be big enough. Taking into account the diversity of the materials which can be used, the issue of adopting some efficient protection solutions had to be considered. These solutions refer both to the element geometry and to the economical aspects. Because it was established that the concrete has the highest reserves in accomplish the settled standards, the researches performed in our laboratory and which are described in the notification herein have been focused on the testing of various cement-aggregate combinations in order to mitigate the gamma radiation. The criteria which have been considered in the selection on the materials used in the research process will be presented in our survey as well as their physical-chemical properties, the studied compositions and the reduction degree of the radiation intensity by presenting the mitigation parameters of the gamma radiation for each studied composition. All six studies compositions contain both natural aggregates (from the pit ballast and from the quarry) and wastes (iron filings, sludge resulted in the galvanization process and dust resulted after the aggregates crushing).
机译：在最近的核技术发展以及隐含地增加核事故风险的背景下，与提供有效的生物保护有关的问题至关重要。能够确保将辐射强度降低到允许极限的材料很多。唯一必要的条件是材料层的厚度要足够大。考虑到可以使用的材料的多样性，必须考虑采用一些有效的保护解决方案的问题。这些解决方案既涉及元素几何形状，也涉及经济方面。由于已经确定混凝土在完成沉降标准方面具有最高的储量，因此在我们实验室中进行的研究（在本公告中进行描述）已集中于各种水泥-骨料组合的测试，以减轻γ辐射。 。在研究过程中所用材料的选择标准中，我们将介绍其标准，以及其物理化学性质，所研究的成分和辐射强度的降低程度（通过介绍该材料的缓解参数）。每个研究组成的伽马辐射。所有六个研究组合物都包含天然骨料（来自碎石ball和采石场）和废物（铁屑，镀锌过程中产生的淤泥和骨料粉碎后产生的粉尘）。

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