What Is the Maximum Single-Panel Area for UHPC Imitation Stone Panels?

The maximum single-panel area of UHPC stone-imitating large panels is constrained by multiple factors, including material properties, production processes, and transportation and installation conditions, requiring balance through scientific design optimization. Based on experience from large-scale projects such as the translucent UHPC at Shanghai Century Plaza and the Hainan International Convention and Exhibition Center, Qinglong Group holds that high-quality UHPC stone-imitating large panels can achieve a single-panel area of 10-15 square meters, with maximum dimensions of 6m×3m and thickness of 15-25mm. This large-panel design is achieved through mix ratio optimization, reinforced design, and refined craftsmanship, satisfying architectural aesthetic requirements while ensuring structural safety, and offering more possibilities for modern building facades.

Material properties are the foundation of panel area. UHPC has a flexural strength of ≥15MPa and an elastic modulus of 45-50GPa, allowing large-panel design. In the Shenzhen Yirui Biotechnology Building project, Qinglong Group controlled the deflection of 6m×2.5m large panels within L/400 (L is the panel span) by adding 2% steel fibers (length 12mm, diameter 0.2mm), with wind pressure deformation meeting code requirements. Mix ratio optimization is also critical: a water-binder ratio of 0.20-0.22 with silica fume added to improve flowability ensures dense, defect-free casting of large panels.

Production processes guarantee large-panel quality. Robotic spraying ensures uniform fiber distribution, while vacuum dewatering improves density. Qinglong Group introduced a German production line capable of producing large panels up to 15 square meters (5m×3m) with flatness deviation ≤3mm/2m. Optimized curing regimes, such as steam curing (70°C×24h), promote strength development and prevent thermal cracking. Transportation and installation limitations must also be considered—excessively large panels increase the risk of breakage, requiring a comprehensive trade-off.

Application cases verify feasibility. Qinglong Group has successfully applied large panels in multiple projects with good results. Through scientific design, UHPC large panels achieve considerable areas, expanding the boundaries of application.