Can Corrosion Cause a Helical Pier to Fail over Time?
Yes, corrosion is a critical factor that can cause helical piers to fail over time. It is an electrochemical reaction—primarily involving moisture and steel—that leads to progressive section loss of the pier shaft.
This process impacts structural integrity in several ways:
- Reduced Load Capacity: As the steel cross-section diminishes due to rust, the pier’s ability to support design loads decreases proportionally. This can lead to differential settlement or, in severe cases, cause the pier to buckle or fail entirely.
- Environmental Acceleration: Corrosion can be accelerated by soils with low electrical resistivity (high chloride, sulfate, or acid content), persistently high moisture levels, or stray DC currents from nearby utility lines and rail systems.
- Triggering Other Failures: A weakened shaft may become more susceptible to negative skin friction, where shifting surrounding soils grip the pier and exert downward pressure that the compromised steel can no longer withstand.
To mitigate these risks, it is essential to use products that meet ICC-ES AC358 standards, which require a minimum 0.002-inch hot-dip galvanized coating. In highly aggressive environments, additional protections like cathodic protection (using sacrificial anodes) may be necessary to ensure the pier’s long-term service life.
Related FAQs
-
Does Nebraska Code Require 42-inch Deck Post Holes?
Read More »: Does Nebraska Code Require 42-inch Deck Post Holes?In Nebraska, building codes generally require deck footings to be placed at a specific depth to prevent damage from frost heave. According to the International Code Council (ICC) digital building codes, the requirements are as follows: Minimum Depth: A minimum…
-
How do Foundation Repair Case Studies Help Get More Jobs?
Read More »: How do Foundation Repair Case Studies Help Get More Jobs?Case studies serve as a powerful tool for foundation repair contractors to move beyond simple sales pitches and provide tangible proof of expertise. They help secure more jobs by performing the following functions: Establishing Social Proof: By featuring before-and-after photos…
-
How do I Market my Certified Foundation Repair Business?
Read More »: How do I Market my Certified Foundation Repair Business?Marketing a certified foundation repair business requires a strategic blend of technical credibility, local search visibility, and data-driven lead generation. By leveraging your certifications and professional partnerships, you can differentiate your services from competitors. To effectively market your business, follow…
-
How does Faulty Soil Investigation Lead to Helical Pier Failure?
Read More »: How does Faulty Soil Investigation Lead to Helical Pier Failure?Faulty or inadequate soil investigation is a leading cause of helical pier failure because it results in inaccurate geotechnical data, which is fundamental to deep foundation performance. According to the provided content, faulty investigation leads to failure through the following…
-
How can a National Installer Network Boost Local Contractor Sales?
Read More »: How can a National Installer Network Boost Local Contractor Sales?Joining a national installer network, such as the one offered by Helical Technology, provides several strategic advantages that boost local contractor sales by enhancing credibility and generating high-quality leads. Key ways the network supports local sales growth include: Instant Marketplace…