Seawall Crack Repair – Sealing Leaks and Restoring Integrity

Admin April 23, 2024

Seawalls protect coastal properties from erosion and flooding, but over time, even the most robust structures develop cracks. These cracks lead to leaks and compromise the seawall’s integrity. Seawall crack repair is a straightforward and easily understood process.

Understanding the Causes of Seawall Cracks

Several factors contribute to the formation of cracks in seawalls:

Soil erosion: The surrounding soil supports seawalls. When soil erodes behind the seawall, it weakens the entire structure.
Hydrostatic pressure: Rainwater accumulation on the landward side of the seawall leads to hydrostatic pressure buildup. This pressure stresses the seawall and causes cracks.
Unstable seawall caps: The seawall cap ties together and secures the seawall panels. Unstable surrounding soil puts tremendous lateral stress on the concrete seawall cap, leading to cracks.

The Importance of Timely Seawall Crack Repair

Repairing seawall damage caused by soil erosion as soon as detected is crucial. Delaying repairs allows the damage to worsen and can ultimately lead to complete seawall failure. Therefore, prompt repair is critical to maintaining the seawall’s structural integrity.

Innovative Materials for Effective Crack Repair

Seawall Repair Network® contractors use SW-RP1, an innovative material, to repair leaking seawall cracks. This product simultaneously stabilizes the surrounding soil and seals the crack. Moreover, SW-RP1 is NSF-approved for contact with potable water and meets strict environmental standards.

High-Strength Solutions for Cracked Seawall Caps

Seawall Repair Network® proprietary materials, equipment, and processes allow for effective repair of this common type of seawall damage. Seawall cracks are a serious issue that property owners should promptly address to prevent leaks and structural failure. By understanding the causes of seawall cracks and using innovative repair materials, contractors can effectively repair seawall damage and maintain the integrity of these vital coastal structures. If you notice signs of seawall damage on your property, contact a Seawall Repair Network® contractor to assess the issue and recommend the best repair solution.

Call 888-834-4926 or fill out this form to schedule a free evaluation.

Foam Seawall Repair Series – 3. Stabilizing the Structure

Admin January 3, 2024

A common cause of failure in seawalls is the breakdown of filter fabric behind the seawall, leading to soil migration and the creation of voids behind the wall. This process, coupled with hydrostatic pressure, can lead to the shifting of wall panels and, eventually, structural failure. Recognizing these issues, Seawall Repair Network® has developed a comprehensive, proprietary repair process to address and mitigate these problems effectively.

The Seawall Repair Process

The repair process begins with deep injections of SW-RP1 directly behind each panel joint of the seawall. This step fills voids and strengthens the soil, essentially turning it into a solid, bedrock-like substance.

Following the injections, a new pressure relief system is created. This involves coring through the weephole channels and the layer of resin installed behind them, extending into the soil on the landward side. The proprietary pressure release technology installed during this phase plays a pivotal role in regulating hydrostatic pressure and preventing erosion from future water intrusion.

Next, cracks in seawall caps are repaired with high-strength epoxy and concrete materials to restore strength and integrity to the top side of the structure.

If necessary, steel tiebacks are installed to halt future movement in high-risk areas of the seawall. The tiebacks anchor into the load-bearing solid ground behind the structure.

Environmental Considerations and Benefits

An important aspect of this repair method is its environmental friendliness. The SW-RP1 material is NSF third-party certified for contact with drinking water and is safe for marine life, offering a sustainable solution to seawall repair.

Cost and Time Efficiency

One of the most significant advantages of this repair process is its cost-effectiveness. By opting for this advanced, non-invasive method, property owners can save up to 80% of the costs associated with complete seawall replacement. Additionally, the time required for the repair is a fraction of that needed for a full replacement, minimizing disruption and inconvenience.

Water is Relentless!

Admin December 12, 2022

Water is relentless. This is a key fact that all waterfront property owners should thoroughly understand. The price of enjoying an oceanfront, riverfront, or lakeside view from the comfort of your own home is the inherent risk that comes with living right next to a large body of water.

Four Critical Warning Signs of Seawall Failure

If your residence is protected by a seawall, you should familiarize yourself with the four critical warning signs of seawall failure:

Soil Depressions Near the Seawall
Rust Stains on the Surface
Movement or Shifting of the Seawall
Cracks in the Concrete

Excessive rainwater or floodwater build-up on the landward side of the wall (usually resulting from an inadequate or clogged weep hole system within the wall itself) will put untenable hydrostatic pressure on the structure. This pressure can cause parts of the wall to move and/or crack. Once the concrete is broken, landward side water will pull soil from your property through the wall and into the water on the other side, causing depressions or small sinkholes near the structure. In addition, steel rebar or mesh inside the wall is exposed to rust, resulting in rust stains appearing on the surface.

Four Options for Dealing with Seawall Damage

Once aware of these problems, you’re faced with four options:

Ignore the Problem and Do Nothing
(If you go this route, the problem gets worse – and more expensive to repair – over time.)
Replace the Seawall
(This option is typically a lot more expensive than a repair, requires heavy equipment, and involves messy disruptive excavation.)
Repair with Inferior Methods
(Inferior repair materials such as hydraulic cement, slurry, and sodium silicate do not provide a permanent, long-term solution.)
Repair with proven Seawall Repair Network^® methods.
(More on this in the next section.)

You can read more about these four options on the Seawall & Bulkhead Replacement vs Repair page. Needless to say, any of the four critical warning signs should warrant a checkup from a qualified seawall repair contractor. Most contractors offer free professional assessments and repair estimates.

Fortunately, there are many effective methods at your disposal in the battle against water’s relentless onslaught. Seawall Repair Network^® preferred marine contractors provide two major types of repair – seawall stabilization and seawall preservation.

Seawall Stabilization

Stabilizing a cracked or shifting seawall is accomplished via these four methods:

Stabilizing Soil and Sealing Leaks with SW-RP1
(SW-RP1 repair material is stronger than crystalline bedrock and safe for the environment.)
Installing a Hydrostatic Pressure Control System
(Creation of pressure release channels with filters that allow water to move back and forth, maintaining an equilibrium of hydrostatic pressure. These filters also prevent soil migration and void formation on the landward side.)
Repairing Cracks in Seawall Caps
(Repairing the seawall caps with high-strength epoxy.)
Installing a Seawall Anchoring System – If Necessary
(When needed, steel tie-backs are installed to prevent future movement of the seawall.)

You can learn more about these methods on the Seawall Stabilization page.

Seawall Preservation

Treating the concrete with preservation solutions provides additional long-term protection. Preservation is accomplished via these three methods:

Inhibiting Corrosion with SW-Prevent
(SW-Prevent creates an insulating layer on the surface of any steel rebar or mesh inside the wall.)
Strengthening Surface Concrete with SW-Power
(SW-Power renders concrete surfaces resistant to air or water-born chemical damage.)
Protecting Surface Concrete with SW-Protect
(SW-Protect inhibits water penetration.)

You can learn more about these methods on the Seawall Preservation page.

Water is Relentless – But YOU Can Be Too!

There is no reason to be intimidated by water’s relentless onslaught. All you have to do is memorize the four critical warning signs, and then enlist a qualified seawall repair contractor when needed. With the proper stabilization and preservation support, your seawall can safely protect that beautiful waterfront view for generations to come.

Seawall Repair Network’s Patent-Pending Process

Admin November 23, 2021

Mother Nature’s oceans, lakes, and rivers can be so beautiful and calm. But over time, her natural forces will cause damage and eventual failure of your seawall. Seawalls are complicated structures made up of a variety of essential components. If one component fails, the entire seawall is at risk. In traditionally constructed seawalls, weep holes with a geotextile fabric filter allow water to flow from the landward side back into the ocean to prevent pressure build-up.

What Causes Seawall Failure?

What causes your seawall to fail? Over time, as the filter fabric fails, soil migration creates voids behind the wall, which causes structural instability. As the voids behind the wall fill up with water, hydrostatic pressure behind the seawall causes the wall panels to shift over time. The shifting panels damage the seawall cap, which holds the entire structure together. When this happens, failure of the seawall is imminent. If ignored, these problems only get worse.

Seawall Stabilization Repair Process

Water is RELENTLESS. But YOU can be too! Professionally trained contractors, armed with Seawall Repair Network’s patent-pending repair process, are ready to guide you to victory in this battle!

Watch the video below for a complete explanation of Seawall Repair Networks seawall stabilization process.

Why Holes Are Appearing in the Soil Behind Your Seawall

Admin May 13, 2021

The Cause of Soil Holes Behind a Seawall

As seawalls age, soil often migrates through the vertical panel joints and weep holes. During construction, a geotextile filter fabric is usually installed on the landward side along the vertical panel joints and weep holes to prevent the migration mentioned above. Over time, however, filter fabric begins to deteriorate and becomes ineffective. Soil migration then occurs during every water event (rain, irrigation, daily tide activity, storm surge, etc.).

Holes Behind a Seawall Indicate Structural Stability Issues

Holes forming behind your seawall are a very big deal and should be considered a red flag that cannot be ignored. A slow process initially, soil migration eventually leads to void formations on the landward side of the seawall. Void formations jeopardize the overall stability of the seawall structure. The loss of structural stability can lead to movement of the wall itself. As the structure slips and moves, damage to seawall caps and panels occur. In addition, resulting stress on the supporting seawall tie-rods and deadman anchors can lead to complete failure of the entire seawall.

If you see holes behind your seawall, you should contact a qualified seawall repair contractor as soon as possible.

Banner - Why Rust Stains Appear on Concrete Seawalls

What Causes Rust Stains on Concrete Seawalls

Admin May 5, 2021

Seawall Rust Causes: Rust on Concrete Seawalls & Bulkheads is a Sign of Decay

Once the steel reinforcement inside of a seawall begins to rust, it expands inside of the concrete and results in spalling (aka cracking). Horizontal cracks (span-running) will then occur as the steel reinforcement of the seawall cap begins to rust and expand inside of the seawall cap. Spalling causes the seawall cap to expand from within itself, which in turn causes the concrete to further break and come apart. Spalling by itself (if allowed to progress) will destroy a seawall by displacing the wall panels. The overall seawall structure relies on the seawall cap to hold everything together.

Repairing the Damage Caused by Rust on Seawalls & Bulkheads

Traditionally, contractors and handymen who perform concrete repair work on seawall caps simply cut through and remove the entire section of seawall cap in need of repair. They then pour new concrete in that section of removed concrete. This form of remediation compromises the integrity of the steel reinforcement of the entire seawall cap.

In order to maintain as much of the original seawall structural integrity as possible, the Seawall Repair Network has created a surgical concrete repair process:

We identify the extent of the spalling by cutting away the damaged concrete.
We avoid cutting through any of the original steel reinforcement.
We continue cutting and grinding the concrete until the extent of the spalling is fully exposed.
We remove as much rust as possible.
We add steel rebar as needed to replace severely damaged rebar.
We install zinc anodes to both ends of the steel being repaired. Zinc anodes are designed to protect buried or submerged metal structural components by sacrificing themselves to prevent the steel reinforcement from rusting. In other words, the zinc anodes corrode instead of the steel rebar. This process is called cathodic protection.
We then coat the entire service area with a balanced formula of phosphoric acid, dichromates, wetting agents, and extenders. This product is environmentally safe and non-flammable. It seals out moisture and prevents future rust from forming.
We then install stainless steel screws into the service area to act as structural reinforcements.
We then utilize forming boards to form and prepare the pouring of the concrete repair material.
We then pour and form a high-strength concrete repair material to reconstruct the parts of the wall that were damaged by spalling.

End Result: The Best Seawall Cap Repair in the Industry

Banner - Why You Should be Concerned When Cracks Appear in Your Seawall Caps

Why You Should be Concerned When You See Cracks in Seawall Caps

Admin April 27, 2021

What Causes Cracks in Seawall Caps?

The seawall cap holds everything together by tying and securing the panels into their installed positions. Most seawall caps are made from poured concrete reinforced with steel. The great thing about concrete is that it never lies. Concrete always displays a stress reaction to unstable soil.

Once a seawall begins to experience movement related to soil instability caused by soil migration and void formation, the seawall cap experiences tremendous lateral stress. This stress is caused by hydrostatic pressure and water-saturated soil (typical soil grade mass) build-up on the landward side of the seawall. Also, the seawall berm (the soil mass surrounding the bottom of the seawall) has typically been compromised at this point and has become unstable.

How Do You Repair Cracks in Seawall Caps?

Seawall Repair Network contractors employ high-strength concrete repair materials to repair cracks in seawall caps, restoring the structure’s strength and integrity. The Seawall Repair Network’s proprietary materials, equipment, and repair processes remedy this damage and other seawall issues.

Seawall Repair Network Advantages

Admin April 14, 2021

Seawall / Bulkhead Repair & Seawall / Bulkhead Replacement

When you find yourself engaged in a search for seawall repair or replacement options, it’s fueled by the understanding that your seawall is key to preventing serious damage to (or even destruction of) your house, building, or property in general.

Unfortunately, most waterfront property owners have not been educated regarding replacement and repair with subpar methods:

Seawall replacement can be very expensive, disruptive, and sometimes even destructive to surrounding property.
Subpar, ineffective solutions such as hydraulic cement, slurry, crushed seashells, and sodium silicate do not address the underlying soil instability that puts unsustainable pressure on the seawall. These methods are similar to putting a band-aid on an infection. The problem will simply continue to get worse until the seawall fails completely.

Experienced Seawall / Bulkhead Repair Contractors

Seawall Repair Network (a division of Alchemy-Spetec) has developed a comprehensive solution, consisting of:

Proprietary SW-RP1 Repair Material
Hydrostatic Pressure Control Technology
Seawall Cap and Panel Structural Repair
Advanced Permanent Anchoring System (When Needed)

Seawall Repair Network member contractors are equipped with state of the art:

Seawall Repair Network System Training
Seawall Repair Materials
Seawall Repair Equipment