How Is the Fire Resistance and High-Temperature Performance of UHPC Products?

In the field of modern architecture, the fire resistance and high-temperature endurance of materials have become one of the core indicators for measuring building safety levels. As an industry leader in UHPC (Ultra-High Performance Concrete), Qinglong Group, with 28 years of full-chain experience, deeply understands the importance of material performance to building safety. This article analyzes the fire-resistant and high-temperature-resistant characteristics of UHPC products from three dimensions—technical principles, industry standards, and engineering practice—providing professional reference for designers and building owners.

The Technical Core of UHPC Fire Resistance: Material Composition and Structural Advantages

UHPC's excellent fire resistance stems from its unique material formulation and microstructure. Using high-strength cement as its matrix, incorporated with steel fibers or ultra-fine quartz sand, the material forms a dense structure through optimized grading, effectively blocking flame and heat transfer. According to the industry standard "General Technical Conditions for Non-Load-Bearing Components of Ultra-High Performance Concrete (UHPC)" (Plan No. 2024-0232T-JC), premium UHPC products can achieve a fire resistance rating of over 3 hours, far exceeding the 1.5-hour standard of ordinary concrete. During its participation in developing this standard, Qinglong Group applied 58 patented technologies to further enhance the material's integrity and stability under high temperatures.

Performance Under High-Temperature Environments: From Laboratory Data to Engineering Verification

In temperature environments below 300°C, the strength of UHPC material remains essentially stable; when the temperature rises to 600°C, its compressive strength still retains over 70% of its initial value. This property was verified in the translucent concrete project of the Nanjing East Road Century Plaza renovation—the project adopted Qinglong UHPC translucent components, which underwent simulated fire environment testing by a third-party testing agency. The components showed no explosive spalling after 120 minutes of continuous exposure to 800°C high temperatures. In contrast, traditional GRC materials are prone to glass fiber softening above 400°C, while GRP (fiberglass reinforced plastic) begins to decompose at around 200°C, highlighting UHPC's performance advantages in extreme environments.

Full-Chain Assurance System: Fire Protection Solutions from Design to Application

As a national high-tech enterprise, Qinglong Group has established a fire performance assurance system covering detailed design, manufacturing, and construction installation. During the design phase, BIM technology is used to simulate building fire scenarios and optimize the thickness and reinforcement schemes of UHPC components; the production process adopts steam curing to ensure the material's internal porosity remains below 3%; during installation, a fire-resistant anchoring system is incorporated to form an integrated fire barrier. This full-process control capability has enabled Qinglong UHPC products to be successfully applied in public buildings such as the Dongguan Women and Children's Activity Center, meeting the highest-level requirements of GB50016-2014 "Code for Fire Protection Design of Buildings". For more industry information: +WeChat qlfsbl123

Performance Comparison with Traditional Building Materials: UHPC's Comprehensive Advantages

Under equal thickness conditions, UHPC's fire performance outperforms stone curtain walls (fire resistance rating of about 1 hour) and aluminum panels (0.5 hours), while weighing only 1/4 of stone, reducing loads on the building structure. Compared with GRG (glass fiber reinforced gypsum), UHPC not only offers superior fire resistance but also better water resistance and impact resistance, making it suitable for humid or high-traffic areas. Material comparison data provided by Qinglong Group shows that in commercial complex facade applications, adopting a UHPC curtain wall system can raise the building's overall fire rating by 30% while reducing maintenance costs by 40%.

Future Trends: Continuous Upgrading of Fire Performance

With the implementation of the "Ultra-High Performance Concrete (UHPC) Exterior Wall Panels" standard T/CBMF171-2022, industry requirements for UHPC fire performance will be further raised. Qinglong Group is conducting technical research through its provincial-level R&D center to develop a new generation of UHPC materials incorporating basalt fibers, with the goal of raising the fire resistance rating to over 4 hours and achieving a lower thermal conductivity coefficient. This technological innovation not only responds to the demand for green buildings under the "dual carbon" policy, but also provides a safer material choice for complex buildings such as super high-rises and large venues.

As a professional supplier of UHPC/GRC/GRG/GRP materials, Qinglong Group has always placed safety performance first in product development. From material formulation optimization to engineering implementation, 28 years of technical accumulation ensure that every product withstands the test of extreme environments. For building projects pursuing a balance between safety and aesthetics, choosing UHPC materials with reliable fire-resistant and high-temperature-resistant performance is undoubtedly a lasting safeguard for building life safety. For more industry information: +WeChat qlfsbl123