Why Fiberglass Pools Are Smarter Than Gunite in Central Texas
In Central Texas, a dream backyard pool can turn into a nightmare due to alkali-silica reaction (ASR), or “concrete cancer.” KVUE investigators reported on April 15, 2024, that hundreds of gunite pools built since 2017 in Travis and Williamson counties are suffering from ASR due to deficient concrete mixes that lack fly ash.
The Hidden Threat of Concrete Cancer
Hundreds of gunite pools built between 2017 and 2022 have been confirmed as ASR-damaged, leaving homeowners with unusable pools and bankrupt pool builders. Well-known gunite pool builders are at the center of federal lawsuits due to concrete cancer.
Others explain that COVID-related demand surges and supply shortages led concrete producers to improvise mix designs without proper testing, which led to ASR-prone shells. This hidden menace has left families with six-figure losses, endless legal battles, and unusable backyards. The root of the problem? Concrete. The solution? Fiberglass.
What Is “Concrete Cancer,” Also Known as ASR?
Concrete cancer occurs when alkalis in cement react with reactive silica in aggregates, forming an expanding gel in wet environments, such as pools. ASR leads to:
- Cracking, spalling, and structural weakening—ultimately compromising the integrity of the pool or structure.
- Rust stains or streaks from corroding rebar
- Surface spalling, with chunks of concrete flaking off
- Presence of sticky gel or white powder exuding on the surface—signs of near-surface ASR (NSASR)
Once started, ASR has no permanent fix—patching is temporary, and rebuilding costs can run hundreds of thousands of dollars.
The AquaPools Advantage
Fiberglass pools, made from resin and glass fibers, are the safer choice in ASR-prone areas:
- No ASR Risk: No concrete means no alkali-silica reaction.
- Factory Quality: Molded in controlled environments for consistent strength.
- Fast Installation: Ready in 5-8 weeks, unlike several months for gunite.
- Low Maintenance: Resists algae and requires fewer repairs.
- Lifetime Warranties: Many manufacturers offer lifelong structural guarantees.
Key Takeaways for Homeowners
- Avoid Concrete: Variable aggregates and fly ash shortages make ASR-resistant gunite unreliable.
- Choose Fiberglass: Eliminates ASR risk.
- Protect Your Investment: Avoid million-dollar rebuilds or unusable pools.
Final Thought
Discover the benefits of fiberglass pools, including their durability, longevity, and peace of mind, making them the smarter choice for lasting value and safety. Schedule a non-obligation consultation with an AquaPool backyard designer and learn more about the advantages of fiberglass pools.