ABSTRACT

The purpose of this study is to identify the staining situation through experiments on sloped walls that are vulnerable to staining and to propose basic measures to prevent staining without additional defect management by taking action in advance at the design stage. A total of 68 prototypes were constructed by measuring the critical angle of the six finishing materials and installing them by angle for the experiments of sloped wall. After conducting five experimental surveys for 9 months, it was determined that the gap in the degree of staining from the critical angle was widening and that it was the main factor of the staining. As a result of applying superhydrophobicity and superhydrophilicity to reduce staining at angles below the critical angle, the efficiency of each material was found to be different, and the higher the absorption rate or the rougher the surface, the better the efficiency of special coating. These results provide convincing evidence in choosing special coatings. In addition, the data collected through the experiments and the multidirectional staining measures according to angle, material, throating and surface coating are expected to be used as a useful alternative to staining prevention in the initial design stage.

摘要

本研究的目的是通过在易受污染的倾斜墙壁上进行实验来确定污染情况，并通过在设计阶段提前采取行动，提出在没有额外缺陷管理的情况下防止污染的基本措施。通过测量六种饰面材料的临界角并按角度安装，共构建了68个原型，用于斜墙实验。经过9个月的5次实验调查，确定从临界角染色程度的差距正在扩大，这是染色的主要因素。由于应用超疏水性和超亲水性以减少低于临界角的角度的染色，发现每种材料的效率不同，吸收率越高或表面越粗糙，特殊涂层的效果越好。这些结果为选择特殊涂层提供了令人信服的证据。此外，通过实验收集的数据以及根据角度、材料、喉部和表面涂层的多方向染色措施，有望在初始设计阶段用作防止染色的有用替代方案。