[Column] Explanation of the Reasons and Types of Water-Stopping Materials for Expansion Devices
A detailed explanation of the role of the water-stopping material in the expansion and contraction device and the types of water-stopping materials.
One of the functions required of expansion joints is water-tightness. High water-tightness not only extends the lifespan of bridges but also reduces lifecycle costs, providing many benefits. However, the water-stopping materials that fulfill this role are very susceptible to damage and are a major cause of leaks. Therefore, various measures are being implemented by manufacturers to maintain the water-stopping materials for as long as possible. This article explains the role of water-stopping materials in expansion joints and the types of water-stopping materials. *For detailed content of the column, please refer to the related links. For more information, feel free to contact us.*
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CRETEC, a company under Crittec Industries, was born from the combination of Create (creation) and Technology. As a comprehensive manufacturer of bridge expansion devices, we continue to develop expansion devices that contribute to the longevity of bridges and environmental protection. Moreover, we do not stop at product manufacturing; by consistently handling everything from research, design, manufacturing, sales, to construction in-house, we can manufacture and install expansion devices that meet the requests of our clients and general contractors, as well as the conditions and environments of the bridges and roads on-site. We also take into account the issues that arise during the installation of expansion devices and the damage conditions of existing devices that are removed, using this information to improve and develop our products. Please feel free to contact us for inquiries about bridge expansion devices, requests for materials, or estimates. ◆ What is a bridge expansion device? It is a component installed in the gap between the bridge abutment and the bridge girder, or between bridge girders. When designing a bridge, it is necessary to create a gap to prevent the bridge girders from colliding due to expansion and contraction caused by temperature changes. The bridge expansion device is required to cover this gap and ensure safe passage for vehicles and pedestrians.