Fire Resistant Concrete from Throop Company
Heat and fire resistant concrete is essential for construction in high-temperature zones, such as industrial furnaces, fireplaces, and chimneys. It is designed to withstand extreme heat without losing structural integrity or strength.
After the Palisades fire in Pacific Palisades and the Eaton fire in Altadena, California, in 2025, fire resistant concrete will be used to in the rebuilding of homes and commercial buildings. The Throop Company has experience producing heat and fire resistant concrete.
The composition of heat and fire resistant concrete typically includes special aggregates like expanded shale made at 2,000 degrees, which enhance thermal shock resistance. Additionally, heat resistant concrete exhibits excellent fire resistance, making it ideal for structures exposed to high temperatures or potential fire hazards.
The applications of heat resistant concrete are vast, including industrial furnaces, kilns, fireplaces, chimneys and rocket launching pads. This specialized concrete provides the necessary durability and thermal insulation to ensure the efficient and safe operation in these types of applications. The material’s ability to maintain stability and strength under fire exposure is crucial for safety and compliance with building codes. To ensure the effectiveness of heat resistant concrete, proper mix design, reinforcement, and curing methods are essential. The use of fire-resistant coatings and additives can further enhance its fire resistance properties.
For a high-heat-resistant concrete mix, materials that can withstand extreme temperatures without cracking or spalling are needed since a standard Portland cement mix is not sufficient for high heat.
Heat Resistant Concrete Projects by Throop
- China Lake, Ridgecrest, California
The Throop Company produced a slab of concrete that had to withstand 2,300 degrees as a place for the Navy to practice fire training. - Vandenberg Space Force Base
A heat resistant concrete launching pad was produced and placed by the Throop Company for Vandenberg. Prior to the installation, every time a rocket was launched, the existing concrete pad would lose ½” of concrete. A 3 ft x 4 ft sample of the proposed heat resistant concrete was produced and placed. During future launches, the new heat resistant sample performed perfectly and led to Throop returning to Vandenberg to install the new fire resistant concrete over the entire launching pad.
- China Lake, Ridgecrest, California
Additional Considerations for Heat and Fire Resistant Concrete
Other things to consider when working with heat and fire resistant concrete can be adding reinforcement such as rebar in a grid pattern in order to improve strength and prevent cracking. In addition, wire mesh can be added for durability. The concrete strength needs to be at least 4,000-5,000 psi compressive strength for long-term durability. Sub-grade preparation needs to be done properly with compacted gravel under the slab to prevent settling or cracking. In addition, expansion joints need to be added if the slab is large due to temperature changes and earth movement.
When building for heat and fire, careful planning needs to be done to ensure durability, safety, and longevity. Using high-quality materials and having experience with heat and fire resistant concrete can ensure a long-lasting fire resistant concrete structure.
The George L. Throop Company has extensive experience with high heat and fire resistant concrete. Contact us for a quote for your project.
The George Throop Company provides concrete production services and where we deliver outstanding value and expertise to each customer we serve.
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The timeline for our concrete production services within a construction project varies based on its size, complexity, and scope. After an initial consultation, we provide an estimated bid including a schedule covering planning, approvals, and construction phases. Contact us to discuss your project timeline in detail.
