Use of desiccant in bridge piers

Modern bridge structures such as the Öresund Bridge between Denmark and Sweden or similar structures spanning bodies of water are subject to extreme climatic and mechanical loads. The situation is particularly critical in the reinforced concrete piers, which have to support the structure for many decades.
Thematic image of the Öresund Bridge
Desiccant bags are used in the base of the bridge piers.

Challenge: moisture and condensation in bridge piers

For structural reasons, there are cavities or inspection shafts inside the piers, often several meters below the water level. Due to their location, these areas are particularly susceptible to condensation caused by temperature differences and the ingress of moisture in the event of potential leaks. Even in largely sealed constructions, the humidity inside can rise over time. This leads to risks such as corrosion on installed steel beams or cables, mold formation or microbial growth, as well as impairments to sensors, maintenance equipment, or power supplies.

Solution: Regulating the humidity with desiccants

To prevent such damage, ThoMar OHG relies on a simple yet effective method: the targeted placement of desiccants in vulnerable cavities. These reliably extract moisture from the trapped air over a long period and ensure a permanently stable internal climate – entirely without power-operated systems or complex technology.
A practical example is the Öresund Bridge, whose underground pier sections are regularly equipped with desiccants. Depending on the amount of water and the specific application, ThoMar offers, for example, the SeaDry desiccant for containers and large spaces or CertiDry desiccant bags.

Result: Long-term protection and increased operational reliability

The use of desiccants reliably prevents corrosion, moisture damage, and malfunctions in technical equipment. The application can be easily integrated into maintenance schedules, protects the building structure permanently, and contributes decisively to the long-term operational reliability of such infrastructure projects.

Collage CertiDry DIN 55473 desiccant bags dust-proof Type B
  • In-box desiccants, Desiccant shop, DIN 55473 desiccant bags

CertiDry DIN 55473 desiccant bags – Type B

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Collage CertiDry DIN 55473 low-dust desiccant bags Type A
  • In-box desiccants, Desiccant shop, DIN 55473 desiccant bags

CertiDry desiccant bag DIN 55473 – Type A

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Application image ThoMar Container Desiccant Chain SeaDry Strip attached to goods in container
  • Desiccant shop, Container desiccants

SeaDry Strip Container Desiccant Chain for placement on container wall or goods

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Application image ThoMar SeaDry container desiccant blanket lying on BigBag
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SeaDry Blanket container desiccant blanket

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