A building material’s surface properties play an important role on its corrosion, mainly due to its interaction with water. Water adheres to a surface and, thus, damages it, to an extent depending on the nature of the material, as well as its surface roughness and porosity. In this study, we focus on marble (a widely used material both in cultural heritage and in modern structures) samples with different surface roughness. The surface roughness at the microscale was calculated using confocal microscopy, and the water contact angle was measured before and after the application of a protective film, in order to study the way inherent roughness affects or even defines hydrophobicity or water-repellency. There seems to be an effect of the inherent marble surface roughness on the quality of waterproofing achieved, which has been qualitatively as well as quantitatively modeled through a simple relation. Such a model can possibly provide means for choosing the most effective coating for the marble surface at hand, thus leading to a more effective corrosion protection.

建筑材料的表面性能对其腐蚀起重要作用，主要是由于其与水的相互作用。水粘附在表面上，并因此而损坏它，其程度取决于材料的性质以及其表面粗糙度和孔隙率。在这项研究中，我们关注具有不同表面粗糙度的大理石（一种在文化遗产和现代建筑中广泛使用的材料）样品。使用共聚焦显微镜在微观尺度上计算表面粗糙度，并在施加保护膜之前和之后测量水接触角，以研究固有粗糙度影响甚至定义疏水性或疏水性的方式。似乎大理石固有的表面粗糙度对所达到的防水质量有影响，通过简单的关系进行了定性和定量建模。这种模型可能可以为手边的大理石表面提供选择最有效涂层的方法，从而获得更有效的腐蚀防护。