Czarnecki Lech, Geryło Robert, Kuczyński Krzysztof
Building Research Institute, ITB, Filtrowa 1, 00-611 Warsaw, Poland.
Materials (Basel). 2020 Oct 13;13(20):4535. doi: 10.3390/ma13204535.
The repairs of building structures are inevitable and indispensable. Repairs are used to restore or maintain the usability of existing facilities, often contributing to the extension of their expected service life, increasing the sustainability of building resources. Given that conservation rules are observed, repairs are also used to save monuments. The concept of repair durability brings to the foreground the durability of the repaired structure (after repair): what service life has been obtained/recovered as a result of the repair. Based on the available data (limited set), a generalised distribution function of repair durability was developed, with a disappointing course. This, however, applies (necessarily) to the past. Significant progress was shown to have been achieved in the theoretical and technical fundamentals of technical repair measures. In this situation, a prognostic distribution function was also designed for future repairs according to EN 1504. A rule of thumb called estimating concrete repair durability, CRD was proposed. The risk associated with estimating the durability of repairs was indicated. A reason for optimism is that proactive monitoring of the condition of the structure and, consequently, management of the repair strategy allows to reach the designed life of the structure.
建筑结构的修复是不可避免且不可或缺的。修复用于恢复或维持现有设施的可用性，通常有助于延长其预期使用寿命，提高建筑资源的可持续性。在遵守保护规则的情况下，修复还可用于保护古迹。修复耐久性的概念将修复后结构的耐久性（修复后）置于突出位置：修复后获得/恢复了怎样的使用寿命。基于现有的数据（有限集），开发了一个修复耐久性的广义分布函数，其结果不尽人意。然而，这必然适用于过去。在技术修复措施的理论和技术基础方面已取得显著进展。在这种情况下，还根据EN 1504为未来的修复设计了一个预测分布函数。提出了一个名为估算混凝土修复耐久性（CRD）的经验法则。指出了与估算修复耐久性相关的风险。令人乐观的一个原因是，对结构状况进行主动监测，并因此对修复策略进行管理，能够使结构达到设计寿命。
