PSI - Issue 73

Miroslav Vacek et al. / Procedia Structural Integrity 73 (2025) 146–154

147

2

Miroslav Vacek, V´ıt Krˇivy´, Barbora Krˇistkova´ / Structural Integrity Procedia 00 (2025) 000–000

Chloride ions, once deposited, can penetrate protective coatings and initiate localized corrosion in the case of steel structures (10) (11) (13). Chloride ions can also promote corrosion in concrete structures (14) (15) (16) (17). Environmental factors such as humidity and temperature fluctuations further complicate corrosion behavior (18) (19). Therefore, it is necessary to thoroughly monitor and analyze chloride deposition patterns. This will inform short-term mitigation and long-term design solutions. In general, infrastructure corrosion has a significant financial e ff ect (20) (21). The increased concentration of chlo ride ions a ff ects not only bridges and tunnels but also less apparent structural elements such as noise barriers or facades (22) (23). Various methods exist to monitor environmental chloride exposure (24) (25). The often used method is the wet can dle method for its reliability and simplicity (26). This method enables researchers to quantify chloride ion deposition under real-world conditions. This study presents data collected on an noise barrier located along the I / 11 road in the Czech Republic. The objective is to assess the chloride ion deposition using the wet candle method. The study further explores the e ff ect of the noise barrier and quantifies the e ff ect of surface orientation of the noise barrier. The results are expected to contribute to improved maintenance planning and design of structural durability in chloride-rich environments. The identification and quantification of chloride exposure are therefore crucial in preventive maintenance strategies and life-cycle assessments of structures.

2. Methodology

The samples are located on the surface of the noise barrier near the I / 11 road and mounted by magnets on the ob verse (road-facing) and reverse (road-opposite) surfaces of the barrier. The typical stand with a wet candle is depicted in Figure 1.

Figure 1: Typical stand with wet candle