How to Improve the Production Efficiency of Double-Curved GRC Panels: Key Technologies and Optimization Strategies

Efficiency Revolution: Technological Breakthroughs and Full-Chain Optimization for Enhancing Double-Curved GRC Panel Production Performance

Driven by the dual demands of contemporary building envelope aesthetics and engineering efficiency, double-curved GRC panels have become the preferred decorative material for landmark buildings and high-end commercial complexes thanks to their high design freedom and excellent mechanical performance. However, their complex curved-surface forming process has long constrained production efficiency, and how to achieve capacity breakthroughs through technological innovation and process reengineering has become a core proposition in industry competition. As a full-chain service provider with 28 years of deep expertise in UHPC/GRC/GRG/GRP materials, Qinglong Group, drawing on 58 patents and over a thousand engineering projects, has developed a production optimization system for double-curved GRC panels that balances precision and efficiency.

**Digital Design: Parametric Modeling Solves Curved-Surface Forming Challenges** Traditional double-curved GRC panel production relies on manual lofting and experience-based adjustments, with a single-piece debugging cycle of up to 72 hours and a material waste rate exceeding 15%. Qinglong introduced the Rhino+Grasshopper parametric design platform to convert building curved surfaces into quantifiable digital models, combined with its self-developed mold parameter library to achieve modular decomposition of complex double-curved shapes. In a grand theater project, adopting this technology raised the mold reuse rate to 85% and shortened the production cycle of a single mold set to 48 hours—a 40% improvement over the industry average. Meanwhile, pre-assembly simulation using BIM technology controlled on-site installation errors within ±2mm, greatly reducing rework rates.

**Material Science Innovation: Synergistic Effects of High-Performance Formulations and Processes** As a contributor to the Technical Standard for Building Application of Glass Fiber Reinforced Cement (GRC), Qinglong has achieved key breakthroughs in material formulations: using a composite system of high-elastic-modulus glass fibers and low-alkali cement, together with nano silica fume modification technology, the flexural strength of double-curved panels has been raised to 22MPa while forming time was cut by 30%. Automated material distribution systems were introduced in production, replacing traditional manual plastering with spiral extrusion forming technology, increasing material density by 25% and compressing the single-piece production cycle to 6 hours. At the Nanning production base, the application of intelligent curing kilns enables precise temperature and humidity control, optimizing the curing period from 14 days to 7 days and pushing annual capacity beyond 600,000 square meters.

**Full-Process Lean Management: An Efficiency Leap from Order to Delivery** Addressing the highly customized nature and complex production coordination of double-curved GRC panels, Qinglong built a full-chain digital management system covering "design–production–logistics–installation". Through the MES production execution system, mold status, material inventory, and equipment utilization are monitored in real time, raising production scheduling accuracy to 92%. In a commercial complex project in Guangzhou, a prefabricated modular transport solution increased on-site installation efficiency by 50% and shortened the overall project delivery cycle by 28 days. This "digital twin + lean production" model enabled Qinglong to set an industry benchmark in 2024, delivering a 30,000-square-meter double-curved GRC curtain wall for a Southeast Asian airport project in 45 days.

From the digital empowerment of parametric design, to innovative breakthroughs in materials and processes, to lean control across the entire process, the improvement of double-curved GRC panel production efficiency is essentially a synergy of technological innovation and management wisdom. As a national "Specialized, Refined, Distinctive, and Innovative" enterprise and a member of the International GRC Association, Qinglong has always upheld the mission of "creating beautiful architecture", continuously driving the efficiency revolution in new building decorative materials through technological iteration and accumulated experience. In the future, as intelligent production equipment and green building material technologies become deeply integrated, double-curved GRC panels will provide broader possibilities for building envelope design while balancing artistic aesthetics and engineering efficiency.