Oftedal Construction, Inc. is excited to announce our new advanced Fillfoam Injection service, a revolutionary solution for soil and ground stabilization. This service uses a pre-expanded, UV-resistant, hydro-insensitive, and environmentally safe foam, making it a safe, fast, and economical method for filling any size void or cavity.

Our advanced fillfoam is a versatile product, pumped as a fully expanded material, ideal for filling abandoned or obsolete underground structures such as tanks, tunnels, pipes, culverts, and shafts. It’s also perfect for filling voids under surface structures like roads, buildings, streets, sidewalks, parking lots, and for raising concrete and patios.

How It Works

The process involves using a Hi-Volume pump to blow fully expanded resin-based material and air through a mixing cylinder. This aerates the resin and creates foam. At the bottom of the mixing equipment, a hardener is sprayed into the expanded resin. This material gels the cell’s resin exterior, completing the setting process and giving the cells rigidity.

Initially, the foam is very wet and achieves its final strength upon drying, which typically occurs within 24-48 hours under normal conditions. Drying time can vary based on environmental factors, such as humidity and temperature. In underground situations with consistent water presence, the foam may not completely dry out. However, maintaining warmer material temperatures and high ambient temperatures can speed up the setting times.

The final product is created by a reaction between the resin and the hardener, which produces no heat and leaves only water as a byproduct. The foam is nitrogen-rich and harmless to the environment, as nitrogen is a non-toxic element that makes up 78% of the air we breathe.

Real-World Application

Our advanced fillfoam Injection service has already proven its worth. During our recent Laramie City Streets project, foam filling provided a cost-effective alternative to the traditional method of excavating around live utilities to access and remove old pipes or culverts, followed by backfilling and compacting the excavation.

Instead of removing the old pipe, we pumped 1,300 pounds of foam into 770 lineal feet of 6” existing water line and 440 lineal feet of 10” water line. Averaging 29 pounds per minute, the two lines were filled in just 45 minutes. Including setup and teardown, the entire project was completed in less than four hours, saving the company a week of work and eliminating the hazards of digging around underground utilities.

Our next project will take place in Casper, WY, where we will fill 300 lineal feet of 16” abandoned water main on Poplar Street.

Advanced Fillfoam Injection Services

Structural Support:
Our fillfoam is perfect for void filling in culverts, pipes, tanks, wells, tunnels, and mine shafts. It provides robust structural support, ensuring the stability and safety of these underground structures.

Soil & Ground Stabilization:
Strengthen weak or unstable ground with our foam injection, making it suitable for foundation support and preventing soil erosion. This service is especially beneficial in areas prone to sinkholes, offering a reliable solution for ground stabilization.

Construction & Remediation:
Our fillfoam can be used in both new construction and the remediation of existing structures. It is particularly valuable in situations that require lightweight yet strong materials that can be easily removed if necessary, providing flexibility and efficiency in various construction scenarios.

Sealing & Insulation:
Seal gaps and prevent air and water infiltration with our advanced foam. It can be used in a variety of insulation applications in buildings and other structures, enhancing energy efficiency and structural integrity.

Oftedal Construction, Inc. is proud to offer these comprehensive services through our Advanced fillfoam Injection technology. Contact us today to learn more about how we can address your structural support, soil stabilization, construction, remediation, and insulation needs.

Benefits of Advanced Fillfoam Injection

Oftedal Construction’s advanced fillfoam Injection service offers numerous benefits, making it an ideal choice for various construction and stabilization projects. This environmentally friendly solution is safe for both the planet and the project site, ensuring minimal ecological impact. The foam’s ability to flow for miles from small access points allows for efficient and effective filling of large voids and hard-to-reach areas without extensive excavation. Despite its lightweight nature, the foam is incredibly strong and clean, providing robust support and stability without adding significant weight. Additionally, the foam does not produce heat during its application, ensuring safety and ease of use in a variety of environments.

Contact Us

Oftedal’s foam filling machine and expert technicians are available for hire. If you have underground void issues, contact us today to discuss your project, and we will provide a tailored solution.

Oftedal Construction, Inc. is committed to delivering innovative and efficient solutions for our clients. Our new advanced fillfoam injection service is just another example of how we are continually advancing operational services and broadening our client base. Each new service complements our foundational heavy civil construction and underground utility capabilities and adaptively responds to the evolving needs of our dynamic industry.

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