Analysis of Processing Differences Between Single-Curved and Double-Curved GRC Panels: Process Characteristics and Application Scenarios Compared

In the field of modern architectural decoration, GRC materials, with their exceptional plasticity and durability, have become an important medium for shaping artistic architectural forms. Among them, single-curved GRC panels and double-curved GRC panels, as two typical forms, differ significantly in processing techniques and application scenarios. As an industry leader with 28 years of expertise in the UHPC/GRC/GRG/GRP materials field, Qinglong Group will analyze the core differences between the two for designers and owners from dimensions such as process characteristics, technical difficulties, and applicable scenarios, helping to inform material selection decisions for projects.

1. Single-Curved GRC Panels: Balancing Standardized Production and Efficient Application

The processing of single-curved GRC panels is characterized by "linear curved surfaces," with a curvature radius typically greater than 300mm and a relatively mature molding process. In production, Qinglong Group adopts automated mold replication technology, achieving mass production through steel molds or fiberglass molds with fixed curvature. The raw material mix strictly controls the glass fiber content (typically 4-5%) and the mechanical properties of the cement-based materials, ensuring a product flexural strength of over 20MPa. This standardized production model gives single-curved GRC panels significant advantages in cost control and delivery efficiency, making them particularly suitable for scenarios with high requirements for shape consistency, such as the curved exterior walls of commercial complexes and the sunshade louvers of metro stations. For example, in a landmark commercial project, the Qinglong team achieved rapid delivery of a 12,000-square-meter curtain wall in 45 days through modular installation of single-curved GRC panels, balancing aesthetic effects with construction progress.

2. Double-Curved GRC Panels: The Ultimate Fusion of Customized Craftsmanship and Artistic Expression

Double-curved GRC panels are distinguished by "bidirectional curved surfaces," which must simultaneously satisfy curvature changes along both the X and Y axes, causing processing difficulty to increase geometrically. Leveraging the R&D strength of its provincial-level engineering technology center, Qinglong Group employs parametric design (Rhino+Grasshopper) and 3D scanning technology to transform designers' abstract creative ideas into precise digital models, then achieves accurate replication of complex shapes through CNC-carved foam master molds and flexible silicone molds. During production, vacuum infusion technology is used to ensure uniform distribution of glass fibers, and steam curing technology is applied to enhance material density, addressing the stress concentration issues arising from double-curved structures. Such products are commonly found in high-end public buildings such as grand theaters and art centers. For example, in a concert hall project that Qinglong participated in, the double-curved GRC ceiling had a maximum curvature radius of only 280mm; through BIM technology and on-site 3D positioning installation, millimeter-level joint precision was achieved, perfectly presenting the flowing curves envisioned by the architect.

3. Process Comparison and Scenario Adaptation: From Technical Parameters to Project Value

In terms of material performance, both single-curved and double-curved GRC panels must comply with the Technical Standard for Glass Fiber Reinforced Cement (GRC) Building Applications (JGJ/T423-2018). However, due to their complex shapes, double-curved panels place higher demands on material toughness and crack resistance. By incorporating nano-scale silica fume and steel fibers, Qinglong has increased the product's flexural strength by 15%. In terms of cost, due to factors such as custom molds, production cycles (30% longer than single-curved panels), and installation difficulty, the overall cost of double-curved panels is approximately 1.8-2.5 times that of single-curved panels. In terms of scenario selection, single-curved panels are suitable for commercial buildings pursuing cost-effectiveness and large-scale application, while double-curved panels provide an irreplaceable solution for the artistic expression of landmark projects. Together, they constitute the dual "function + aesthetics" value system of GRC materials in the field of architectural decoration.

As a national "Specialized, Refined, Distinctive, and Innovative" enterprise and a participant in formulating GRC industry standards, Qinglong Group has always upheld the mission of "creating beautiful architecture." Through its full-chain service capabilities (detailed design - production and manufacturing - construction and installation - after-sales maintenance), it provides customers with integrated solutions from material selection to implementation. Whether it is the efficient application of single-curved panels or the artistic breakthroughs of double-curved panels, Qinglong draws on 28 years of accumulated technical expertise to unleash the unlimited potential of GRC materials in building facades and spatial shaping. Choosing Qinglong means choosing not only high-quality products but also a dual guarantee of architectural aesthetics and engineering quality.