What Special Designs Are Required to Achieve UHPC's Fire Resistance — An Analysis of Key Technologies and Design Strategies

The enduring beauty of architectural decoration begins with scientific curing. As a key link in the full lifecycle management of GRC components, the standardized execution of the curing period directly determines the structural stability and aesthetic expressiveness of the components. With 28 years of experience in detailed design and engineering practice of UHPC/GRC/GRG/GRP materials, Qinglong Group systematically explains the core essentials of GRC component curing for you.

Industry Standards and Scientific Basis for the GRC Component Curing Period

According to the Technical Standard for Application of Glass Fibre Reinforced Cement (GRC) in Buildings (JGJ/T423-2018), the basic curing period of GRC components should be no less than 14 days. This period is set based on the hydration reaction laws of cement-based materials—under standard curing conditions (temperature 20±2°C, relative humidity ≥90%), GRC components need 14 days to reach over 85% of their design strength and 28 days to achieve peak strength solidification. Through its intelligent curing kiln temperature control system, Qinglong's production base keeps curing environment fluctuations within ±1°C, ensuring components form a dense microstructure during the curing period.

Staged Curing Technical Essentials and Quality Control

The curing cycle must strictly follow the two-stage principle of “strength establishment in the first 7 days and performance stabilization in the last 7 days.” In the initial stage (days 1–3), water spray curing or covering with a moisture-retaining film should be used to prevent rapid surface moisture evaporation that could cause shrinkage cracking; in the middle stage (days 4–7), humidity can be gradually reduced to 70%–80% to promote steady strength growth; in the later stage (days 8–14), alternating dry and wet curing should be carried out to enhance the components' freeze-thaw resistance. Qinglong's original “three-stage curing method” has passed the Guangdong Province Scientific and Technological Achievement Appraisal and has been applied in projects such as the Dongguan Women and Children's Activity Center, keeping the component cracking rate below 0.3%.

Curing Management Innovation under the Full-Chain Maintenance System

As a national high-tech enterprise offering full-chain services covering detailed design, manufacturing, construction and installation, and after-sales maintenance, Qinglong incorporates the curing process into full lifecycle project management. Differentiated curing plans are formulated for different application scenarios: exterior wall cladding panels undergo “28-day follow-up curing after installation,” garden landscape components receive an additional surface hydrophobic treatment process, and European-style decorative mouldings use special curing agents to enhance alkali resistance. In the Nanjing East Road Century Plaza renovation project, Qinglong preset curing monitoring points through BIM technology and combined RFID chips to make curing data traceable, ensuring light-transmitting concrete components meet the 15-year durability commitment.

Scientific and proper curing is the cornerstone for GRC components to achieve their design life. Supported by 58 patented technologies, Qinglong Group has established a standardized system ranging from material formula optimization to on-site curing guidance, providing designers and owners with expert solutions from detailed design to after-sales maintenance. Choosing Qinglong GRC means not only obtaining high-quality decorative component products, but also enjoying full-cycle technical assurance based on 28 years of industry experience, keeping the beauty of architecture evergreen.