Where Are the Production Challenges of Hollow-Out GRC Decorative Panels: An Analysis of Key Technologies and Solutions

When architectural art meets the aesthetics of openwork, the production of GRC decorative panels is both a technical contest and a journey of craftsmanship. As an industry leader with 28 years of deep expertise in the UHPC/GRC/GRG/GRP materials field, Qinglong Group knows that behind every openwork GRC decorative panel lies a deep integration of materials science and engineering technology.

In modern architectural decoration, openwork GRC decorative panels have become the visual centerpiece of high-end projects such as landmark buildings and commercial complexes, thanks to their unique light-and-shadow effects and artistic expressiveness. However, their production process faces multiple technical challenges, including material proportioning, structural stability, and precision control. From an industry leader's perspective, this article provides an in-depth analysis of the production difficulties of openwork GRC decorative panels and Qinglong's full-chain solutions.

### I. Core Production Challenges of Openwork GRC Decorative Panels

**1. The Balancing Challenge of Material Proportioning and Reinforcement Systems** Openwork design means GRC panels must maintain structural strength while reducing weight, which places extremely high demands on the ratio of glass fiber to cement matrix. Ordinary GRC materials are prone to stress concentration when the openwork ratio exceeds 30%. Through 28 years of formula iteration, Qinglong developed a dedicated anti-cracking formula, precisely controlling the glass fiber content at 5-6% and using alkali-resistant glass fiber combined with high-grade cement, raising the flexural strength of openwork components to above 20MPa and solving the industry pain point of "openwork means fragility."

**2. Mold and Forming Challenges for Complex Openwork Shapes** Whether geometric openwork from parametric design or artistic relief textures, mold precision directly determines product quality. Traditional wooden molds deform easily, while steel molds are costly. Qinglong introduced BIM technology and 3D-printed mold techniques, combined with its self-developed flexible silicone molds, to achieve precise replication of complex shapes with a minimum curvature radius of ≤300mm. Mold reuse has increased to more than 8 times, and production efficiency is 40% higher than the industry average.

**3. The Dual Test of Structural Stability and Installation Safety** Uneven stress distribution in openwork areas can easily cause deformation after installation. Qinglong performs mechanical simulations on every openwork node using finite element analysis software and innovatively adopts an "embedded steel structural framework + integrated GRC molding" process, reducing component self-weight by 25% while increasing the anchor system's load-bearing capacity to 15kN—far exceeding the requirements of the Technical Standard for Glass Fiber Reinforced Cement (GRC) Building Applications (JGJ/T423-2018).

### II. Qinglong's Full-Chain Solution: A Technical Closed Loop from Design to Delivery

As a national-level high-tech enterprise, Qinglong solves openwork GRC production challenges with full-chain capabilities spanning "detailed design–intelligent manufacturing–precision installation–after-sales maintenance." During the design phase, backed by the R&D strength of its provincial-level engineering technology center, it offers customized services from scheme optimization to parametric modeling. In production, its Nanning, Guangxi production base features automated production lines with an annual capacity of 600,000 square meters, using RFID chips for full-process quality traceability. During installation, 3D laser scanning positioning technology ensures jointing errors of openwork components are ≤2mm.

From the irregular openwork curtain wall of the Dongguan Women and Children's Activity Center to the translucent concrete project at Century Plaza on Nanjing East Road, Qinglong has proven its technical strength with more than 2,000 successful cases. Looking ahead, Qinglong will continue its mission of "creating beautiful architecture," driving innovative applications of GRC materials in green building and artistic decoration, and becoming a global leader in UHPC/GRC/GRG/GRP manufacturing.