How to Properly Maintain Bridge Expansion Joints?

linemarkingplus
3 min readMar 4, 2024

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bridge expansion joints

Bridges are the architectural innovations that have contributed significantly to improving connectivity. They enhance the mobility and transport system in the society. Though the structure of the bridges is constructed by using the best materials to ensure their durability, still this infrastructure is prone to damage.

One of the major factors that affect the bridge is temperature changes. The fluctuations in the temperature can result in the expansion and contraction of concrete or asphalt surfaces. If the concrete layer is constantly expanding and contracting, then it will ultimately break. So, keeping the risk of the structure’s deterioration due to temperature changes in mind, the professionals install bridge expansion joints.

The joints accommodate the expansion and shrinkage effects. However these components also need maintenance from time to time so that they are able to provide protection to the bridge properly. But how can one keep the expansion joints in ideal condition?

To know the answer to this, keep on reading further.

Top 7 Ways to Maintain Bridge Expansion Joints

Lookout for corrosion

The expansion joints can corrode over time due to a variety of reasons. Saltwater, moisture in the atmosphere, and chemical spills from vehicles are some major factors that contribute to the corrosion of the joints. The process of corrosion can oxidise the surface of joints, leading to damage, which can severely affect its functioning. However, with timely detection and implementation of corrective action, you can stop the effects of corrosion. You can do this by cleaning the surface of bridge expansion joints properly and by applying corrosion-resistant sealants over it.

Regular cleaning

Many particles, such as small rocks, leaves, dirt and other debris, can accumulate in the gaps of expansion joints. The debris can make it difficult for the joints to absorb the effects of expansion and contraction occurring due to temperature changes. This will ultimately fail the purpose of installing expansion joints. So, it is crucial that you thoroughly clean the joints from everywhere, especially the gaps. You can conduct cleaning by vacuuming or spraying water at high pressure onto the joints.

Correct misalignment in joints

The constant movement of heavy traffic and natural disasters like earthquakes can misalign the expansion joints. If the joints are not in the correct position, then it can affect the overall structure of the bridge. So, make sure to monitor for any misalignment and make the required repairs accordingly.

Timely lubrication

The ligaments of the joints can get rigid from lack of lubrication. If the friction in the expansion joints is greater, then it can shorten its lifespan or, in severe cases, lead to structural failures. To prevent the need for early replacements of expansion joints, you should use the essential lubricating materials that can help maintain the structure’s integrity.

Repair or Replace the defective components

In many cases there is no need for replacing the whole structure of the expansion joints in case of any mechanical failures. With proper repairs of the defective components, you can enhance the condition of the structure. However, if there are no improvements even by making repairs, then you should consider replacing the faulty parts.

Reapply sealant

The sealant is a material that prevents seepage of water in the inner layers of the structure. Usually, the professionals apply this material when they install the bridge expansion joints. But continuous traffic and extreme weather can remove the sealant layer. So, you must reapply the sealant coating from time to time to prevent damage that can occur from water.

Schedule maintenance checkup

The work of maintenance is not limited to only when any significant damage to the expansion joints occurs. You should conduct maintenance check ups regularly to elongate the structure’s life. In the process of inspection, you should look out for any visible signs such as accumulation of dust and debris, cracks and deterioration. This will help you to avoid bigger structural failures which can cost you a hefty amount.

Conclusion: By following the above-mentioned tips, you can ensure that the bridge expansion joints remain in excellent condition. However, if you find work repairing and maintenance complex, then you should seek the assistance of experts. If you want to avail the best professional services then Line Marking Plus is the company you need. They provide exceptional bridge-related repair services along with treatment for concrete, asphalt and Concrete slab deck surfaces. So visit their website for more information.

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Linemarking Plus T/A Crack Sealing Australia has been providing high quality line marking, crack sealing, and concrete repair services for over 30 years.