Pulp Mill
You’ve got to make pulp to keep the paper machines running. Keeping your process equipment and pulp mill infrastructure in top shape is key. You’ll have annual outages to deal with the big stuff. But, what about those repairs that just can’t wait? If you only have short field days, you’ll need materials that can allow for minimal down time. Check out some common applications below.
Underwater Epoxy Repair
Concrete sumps and trenches in pulp mills are exposed to harsh operating conditions, including corrosive chemicals, constant moisture, and abrasive debris. Over time, this exposure leads to cracking, wear, and leaks. These issues need immediate attention to prevent further damage and operational disruption. However, in many cases, a full shutdown of operations isn’t feasible, making timely, underwater repair solutions critical.
Underwater-curing gel epoxies offer a reliable and effective method for sealing leaks and restoring damaged concrete without the need for a complete outage. After cleaning and neutralizing the affected area, these specialized materials bond securely to wet surfaces and cure underwater, ensuring a durable repair even in saturated conditions. For added efficiency, the curing process can be accelerated with heat, allowing the repaired area to return to service faster.
By using these advanced materials, pulp mills can address urgent repairs, maintain operational flow, and delay more extensive maintenance until a scheduled downtime.
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Acid Proof Grouts
Sulfuric acid is a critical component in pulp mill processes, but it’s also one of the most aggressive chemicals for infrastructure. At concentrations as high as 98%, sulfuric acid can quickly degrade traditional concrete and cementitious grouts, posing risks to foundations and other structural elements. Protecting these assets requires materials engineered to withstand such extreme chemical exposure.
Polymer concretes and 100% Novolac epoxy-based grouts provide unmatched resistance to high-concentration acids, making them the ideal choice for pulp mills. These materials can be used for grouting applications, thin repairs, or modifying and reinforcing existing foundations. Their versatility extends to incorporating rebar or extending them with gravel to improve strength and longevity.
By using acid-proof grouts, mills can safeguard critical structures against sulfuric acid damage, reducing the need for frequent repairs and ensuring long-term operational reliability.
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Chemical-Proofing Sumps & Trenches
Sumps and trenches in pulp mills are subjected to some of the harshest operating environments, with exposure to a combination of acids, caustics, high temperatures, and abrasive materials. These conditions can quickly overwhelm thin-film coatings, leading to concrete saturation, scouring, and ultimately, structural degradation. Maintaining the integrity of these critical areas is essential to ensure smooth operations and prevent costly downtime.
For superior protection, thick polymer concrete systems are the preferred solution. These advanced materials provide enhanced chemical resistance and are designed to handle the high-impact and corrosive conditions common in pulp mills. Unlike thin-film coatings, polymer concrete linings prevent saturation, withstand abrasive forces, and offer long-term durability, making them an excellent choice for protecting trenches and sumps.
By investing in chemical-proofing solutions, pulp mills can extend the lifespan of their infrastructure, reduce maintenance costs, and maintain efficiency in the most demanding environments.
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