This paper reports on analysis of an experimental study that aimed to determine the apparent gas permeability in cracked concrete. There is a lack of research on this topic in the international literature, due to the difficulty of performing reliable experimental testing for gas permeability. The principal interest of this work is to present new and reliable experimental results. Analytical functions between the evolution of the apparent crack permeability and the apparent crack opening are also proposed. These functions appear to be relevant in consideration of Poiseuille theory.

中文翻译：

---

大裂缝混凝土表观透气率的测定

本文报告了一项实验研究的分析，该研究旨在确定开裂混凝土中的表观气体渗透率。由于难以对透气性进行可靠的实验测试，国际文献中缺乏对这一主题的研究。这项工作的主要兴趣是提出新的和可靠的实验结果。还提出了表观裂纹渗透率的演变与表观裂纹张开度之间的解析函数。考虑到泊肃叶理论，这些函数似乎是相关的。