Osmotic processes in the system cementitious material - coating with cold-curing resin

在系统渗透过程的项目研究中，规划了冷固化树脂胶凝材料涂层。假设是，胶凝材料作为半透膜与涂层在一定的成分、水分输送和化学物质输送条件下的作用导致损伤。首先，该项目涵盖了对树脂系统的研究，以及对用作此类涂层基材的胶凝材料的研究。然后，在不同条件下对两组分的复合试样进行了测试，以供实践使用。实验研究附有单个实验的输运-反应模拟。这些模拟用于更好地理解问题的部分过程，这些过程不能简单地通过实验室方法获得。另一方面，如果实验结果不能通过模拟再现，对过程的理解缺陷就会变得明显。申请人将根据胶凝材料和冷固化树脂涂料在渗透过程中的新经验，提出在不同条件下避免起泡的建议。增加损伤风险的参数应在精确定义条件下的实验基础上确定。两位申请人在项目中引入了不同的专家评估。申请人Schmidt-Döhl的主要焦点是胶凝材料对渗透过程和运输反应模拟的贡献。申请人Osburg的主要重点是树脂体系和胶凝材料和树脂的复合材料的实验。

In the project investigations on osmotic processes in the system cementitious material – coating with cold-curing resin are planned. Hypothesis is, that the action of the cementitious material as a semipermeable membrane together with the coating under certain conditions of composition, moisture transport and transport of chemical species leads to damages. At first the project covers investigations on resin systems as well as investigations on cementitious materials used as substrate for such coatings. Afterwards composite specimens of both components are examined under different conditions, relevant for practise. The experimental investigations are accompanied and supported by transport-reaction simulations of single experiments. These simulations are used to better understand part processes of the problem, that are not simply accessible by laboratory methods. On the other hand deficits in the understanding of the processes become obviously, if experimental results cannot be reproduced by the simulations. The applicants will provide recommendations to avoid blistering under different conditions, based on the new experiences on osmotic processes in composites made of cementitious materials and coatings with cold-curing resin. Parametres increasing the damage risk should be identified on the basis of experiments with precisely defined conditions. Both applicants introduce different expert's assessment in the project. The main focus of the applicant Schmidt-Döhl is the contribution of cementitious materials to osmotic processes and the transport-reaction simulation. The main focus of the applicant Osburg are the resin systems and the experiments with the composite species with cementitious material and resin.