Within the framework of the safety assessment of the nuclear fuel facilities,we study the leakage of a reinforced concrete wall subjected to shear stresses characteristic of a seism.For that,we measure the gas flowrate and the retention of the aerosol particles in the concrete cracks for upstream and downstream pressure differences ranging from 10 hPa to 200 hPa,which are representatives of the wind effect or the fire risk onto a building.The main objective of this work is to provide data in order to validate a model for the retention of the aerosols by cracks in concrete walls.This subject is complex because many factors contribute to the retention of aerosols in the cracks.One can quote the deposit inside the crack,the deposit at the entry of the crack and the evolution of the flowrate due to the possible clogging of the crack.These phenomena were studied with ideal geometries such as capillaries or slots (Morewitz 1982,Clement 1995,Carrie and Modera 2002),but very few data are available with concrete crack (Van de Vate 1984,Farrar and Girrens 1992).
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机译：在核燃料设施安全评估的框架内，我们研究了钢筋混凝土墙在地震作用下的剪切应力下的渗漏情况。为此，我们测量了混凝土裂缝中的气体流量和气溶胶颗粒的保留率。范围介于10 hPa至200 hPa之间的上游和下游压力差，代表建筑物上的风效应或火灾风险。这项工作的主要目的是提供数据，以验证用于保留建筑物的模型。这是一个复杂的问题，因为有许多因素导致了气溶胶在裂缝中的滞留。人们可以引用裂缝内部的沉积物，裂缝入口处的沉积物以及由于裂缝引起的流量变化。这些现象是在理想的几何形状如毛细管或缝隙下进行研究的（Morewitz 1982，Clement 1995，Carrie and Modera 2002），但很少有数据可用。具有混凝土裂缝的能力（Van de Vate 1984，Farrar and Girrens 1992）。
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