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Bridge & Highway

Bridge & Highway

Bridges

Maintaining the structural integrity of bridges is essential for public safety and the longevity of transportation infrastructure. Key maintenance areas include joint sealing, joint repair, crack repair, concrete strengthening, concrete repair, and pile repair.

Applications

Joint Sealing

Proper joint sealing is vital to extend the lifespan of a bridge and ensure user safety. Sealed joints prevent water infiltration, which can lead to corrosion of reinforcement steel and deterioration of concrete components. Additionally, effective sealing provides a smoother transition for vehicles, reducing impact loads that can cause structural damage over time.

Selecting the appropriate joint filler is crucial. Factors to consider include the type of traffic, environmental conditions, and the expected movement of the joint. Materials such as elastomeric sealants are commonly used due to their flexibility and durability. Regular inspections and maintenance of joint seals can prevent minor issues from escalating into major structural problems, thereby enhancing the bridge’s durability and safety.

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Joint Repair

Bridge joints endure significant stress from vehicular traffic, temperature fluctuations, and environmental factors, making them susceptible to damage. Damaged joints can lead to water ingress, resulting in corrosion and concrete deterioration, and can cause discomfort or hazards for motorists due to uneven surfaces.

Effective joint repair involves assessing the extent of damage, selecting appropriate repair materials, and ensuring proper installation. Materials with high impact resistance are essential to withstand the dynamic loads imposed by traffic. Timely repairs not only restore structural integrity but also enhance ride quality and reduce future maintenance costs.

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Crack Repair

Concrete bridge decks are prone to cracking due to factors like load stresses, thermal expansion, and shrinkage. Unaddressed cracks can allow water and deicing chemicals to penetrate, leading to reinforcement corrosion and further structural degradation.

Repairing cracks with low-viscosity epoxy injections can effectively rebond the concrete, restoring its monolithic nature and preventing moisture ingress. This method enhances the structural capacity of the bridge deck and prolongs its service life. Regular monitoring and early intervention are key to managing cracks and maintaining bridge health.

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Concrete Strengthening

Over time, bridges may require strengthening to accommodate increased load demands or to rectify design deficiencies. Advanced composite materials, such as fiber-reinforced polymers (FRP) like SikaWrap and CarboDur, offer efficient solutions for concrete strengthening.

These materials are lightweight, exhibit high tensile strength, and are resistant to corrosion, making them suitable for applications like shear strengthening, seismic upgrades, and enhancing impact resistance. Their application can significantly extend the lifespan of bridge structures and improve safety without substantial increases in dead load.

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Concrete Repair

Maintaining the concrete components of your bridges is an ongoing challenge. Year after year, environmental forces and external impacts take their toll. Freeze-thaw cycles, rebar corrosion, settlement, undermining, deicing chemicals, and even the occasional truck impact all work together to weaken your structures. Keeping these elements in check is essential to preserving the safety and longevity of your bridges.

To make the most of your maintenance budget, it’s crucial to familiarize yourself with a full range of materials and application methods tailored for concrete repair. From fast-setting patching compounds to corrosion-inhibiting coatings, the right solutions can help you extend the life of your bridges while minimizing costly downtime.

Checkout some of the most commonly used materials for bridge-related concrete repair below and discover how to protect your investment with effective, budget-conscious solutions.

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Culverts

Maintaining the structural integrity of culverts is essential for ensuring proper water flow and preventing infrastructure failures. Key maintenance areas include void filling to address undermining, underwater concrete repair, and active leak stopping.

Applications

  • Void Filling-Undermining
  • Underwater Concrete Repair
  • Active Leak Stopping

Void Filling-Undermining

Undermining occurs when water infiltrates beneath or behind culvert structures, eroding the supporting soil and creating voids. This erosion compromises the stability of the culvert and the overlying roadway, posing significant safety hazards. Early detection and remediation are crucial to prevent structural failures and costly repairs.

The remediation process involves identifying voids through thorough inspections, which may include visual assessments and ground-penetrating radar. Once located, these voids can be filled using specialized grout materials designed to stabilize the soil and restore structural integrity. Proper application ensures the culvert’s durability and functionality, mitigating the risk of further erosion.

Implementing a proactive maintenance strategy that includes regular inspections and timely void filling can significantly extend the lifespan of culvert infrastructure, ensuring safety and operational efficiency.

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Underwater Concrete Repair

Culverts often operate in environments where dewatering is impractical, necessitating repairs in wet or fully submerged conditions. Traditional repair materials may not bond effectively to wet surfaces, leading to inadequate repairs and potential structural failures.

Underwater concrete repair involves using specially formulated materials that can cure and adhere in moist environments. These materials are applied to damaged areas to halt water infiltration and restore the structural integrity of the culvert. Techniques such as hand application or specialized placement methods ensure proper bonding and durability.

Utilizing underwater repair solutions minimizes downtime and environmental impact, providing a cost-effective method to maintain culvert functionality without extensive dewatering efforts.

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Active Leak Stopping

Active leaks in culverts can lead to significant structural damage, including erosion, freeze-thaw cycles, and long-term degradation. Addressing these leaks promptly is essential to prevent further deterioration and ensure the culvert’s longevity.

Active leak stopping involves applying rapid-setting materials capable of sealing leaks even under hydrostatic pressure. These materials are introduced into the leaking area, where they quickly expand and harden, creating an impermeable barrier against water ingress. This immediate intervention prevents further erosion and damage.

Regular monitoring and maintenance, combined with the use of effective leak-stopping materials, can significantly enhance the durability and safety of culvert structures.

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Roadways

Roadway maintenance on highways is extremely important as it directly impacts safety, efficiency of travel, vehicle maintenance costs, and overall economic development by ensuring smooth, well-maintained roads that minimize accidents, reduce travel time, and protect infrastructure from further deterioration; neglecting maintenance can lead to significant safety risks, increased vehicle repair costs, and hinder economic growth in affected areas.

Applications

Asphalt Patching

Being good at patching your asphalt roadways is something that’s not going to win any awards. But, it sure will keep the complaints at bay. Most of the time you have a cold patch bag material that’s approved for temporary patching. The problem is, it’s very temporary. If the conditions aren’t right and the tamping isn’t near perfect, you’re going to go back to that same hole again. To be the best option a material would have to address each of the following criteria.

  • All-SeasonWorks in all seasons and all climates.
  • Applied in water – Can be added to water-filled potholes and areas.
  • Bonds Permanently – To asphalt, concrete, steel, wood, and other hard surfaces.
  • Accepts Traffic Immediately – No drying or curing time.
  • 2 Year Shelf Life – Always ready. Keep on hand with no waste.
  • Extreme Versatility – Handles your toughest applications.
  • High Workability – Open. Pour. Done. Easy to use with no mixing or preparation.
  • Proven Most Durable – Per Federal Strategic Highway Research Project “SHRP” Test.
  • Thin Application – Can be applied as thin as 1/4 inch.

Perma-Patch has been trusted for over 30 years by professionals to make high-quality, permanent pavement repairs while minimizing traffic interruptions.

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Patching

Patching potholes and damaged areas on active roadways is a challenging yet essential task to maintain safety and road quality. While finding durable concrete-like patching materials is relatively straightforward and their application is typically easy, the true challenge lies in managing traffic control and ensuring worker safety during repairs.

Minimizing disruption to traffic flow and reducing the time workers are exposed to oncoming vehicles are top priorities when planning roadway repairs. That’s why fast-setting materials that can be mixed and applied quickly are critical for these situations. These solutions allow repairs to be completed efficiently, ensuring the road is back in service with minimal downtime.

Take a look at our range of high-performance patching products designed to address the unique challenges of active roadway repairs. With the right materials, you can achieve durable, reliable results while prioritizing safety and efficiency.

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Overlays

Highway overlays involve applying a new layer of material over existing pavement to restore surface integrity and enhance performance. This method offers several benefits:

  • Improved Ride Quality: Smooths out surface imperfections, providing a safer and more comfortable driving experience.
  • Extended Pavement Lifespan: Reinforces the existing surface, protecting against further wear and environmental damage.
  • Noise Reduction: Dampens road noise, contributing to quieter surroundings for nearby communities.

Overlays are a cost-effective alternative to full reconstruction, allowing for targeted repairs with minimal disruption. This approach reduces downtime and traffic delays, maintaining roadway functionality and safety.

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Joint Sealing

Sealing pavement joints is critical to prevent water infiltration, a leading cause of pavement deterioration. Proper joint sealing offers:

  • Protection Against Freeze-Thaw Damage: Prevents moisture from entering and expanding within the pavement, reducing cracking.
  • Erosion Prevention: Stops water from eroding the subgrade, maintaining structural integrity.
  • Extended Pavement Life: Reduces the need for frequent repairs, ensuring a smoother and safer surface for drivers.

Investing in high-quality joint sealants and regular maintenance preserves roadway infrastructure, enhances safety, and optimizes maintenance budgets.

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