Analysis of Special Requirements and Technical Key Points of Glass Fiber Mesh Laying Process for Double-Curved GRC Panels

In the field of architectural decoration materials, details determine quality and craftsmanship forges excellence. As highly expressive decorative components in modern architecture, double-curved GRC panels owe their structural safety and service life directly to the particularities of their fiberglass mesh laying process. As an industry leader with 28 years of dedicated expertise in UHPC/GRC/GRG/GRP materials, Qinglong Group draws on its full-chain experience to provide an in-depth analysis of the core technical points of fiberglass mesh laying for double-curved GRC panels, delivering professional solutions for designers and owners.

The curved surface characteristics of double-curved GRC panels pose special challenges for fiberglass mesh laying. Compared with flat components, double-curved structures require the fiberglass mesh to offer greater flexibility and extensibility while ensuring uniform stress distribution across complex curved surfaces. During the detailed design stage, Qinglong Group applies BIM technology and parametric modeling to simulate in advance the stretching trajectory of the fiberglass mesh over double-curved surfaces. By optimizing mesh density and laying angles, it avoids the risk of cracking caused by localized stress concentration. This forward-looking design approach reflects Qinglong's commitment to technological innovation as a national high-tech enterprise.

Material selection for the fiberglass mesh provides the fundamental guarantee for process implementation. Qinglong Group strictly complies with the Technical Standard for Building Application of Glass Fiber Reinforced Cement (GRC) (JGJ/T423-2018), selecting alkali-resistant fiberglass mesh with breaking strength ≥1200N/50mm and alkali resistance retention ≥75%, ensuring long-term mechanical performance in the alkaline cement environment. To meet the special requirements of double-curved shapes, Qinglong innovatively adopts biaxially stretched fiberglass mesh; through different elastic modulus designs in the warp and weft directions, surface conformity is improved by more than 30%. This technical detail has been incorporated into Qinglong's enterprise standards and applied in award-winning projects such as the Dongguan Women and Children's Activity Center.

The refined execution of the laying process directly affects the overall performance of double-curved GRC panels. Qinglong's production base employs automated mesh-laying equipment combined with precise manual adjustment to achieve wrinkle-free laying of the fiberglass mesh on mold surfaces. Key process points include: first, the "layered staggered-seam" laying method, in which each fiberglass mesh layer overlaps by ≥50mm and the seams of adjacent layers are staggered by ≥100mm, effectively enhancing structural integrity; second, "local densification" treatment in areas with a radius ≤300mm to accommodate the curvature changes of double-curved panels, increasing the fiberglass mesh layers to 3-4 to ensure that weak areas meet strength requirements; third, vacuum-assisted laying technology, which achieves over 98% conformity between the fiberglass mesh and the mold surface, preventing bubbles and wrinkles.

The quality control system provides vital support for putting the process into practice. Qinglong Group has established full-process quality control standards from raw material inspection to finished product testing: every batch of incoming fiberglass mesh must pass alkali resistance testing and tensile strength testing; during production, RFID chip traceability technology records the fiberglass mesh laying parameters of each double-curved panel; before delivery, bending performance tests ensure that the flexural strength of double-curved GRC panels reaches ≥15MPa, meeting the high standards of the General Technical Conditions for Non-Load-Bearing Components of Ultra-High Performance Concrete (UHPC). This rigorous quality control is the core reason Qinglong has been honored as a "Specialized, Refined, Distinctive, and Innovative Enterprise" and an "Enterprise with Advantages in Patent and Intellectual Property Protection."

The fiberglass mesh laying process for double-curved GRC panels represents a perfect combination of material properties, design wisdom, and construction precision. With 28 years of full-chain experience, Qinglong Group integrates technological innovation into every process detail, not only providing safe and reliable decorative solutions for landmark buildings but also driving technological progress in the GRC industry. From standardized production at its Nanning production base to double-curved curtain wall applications in Guangzhou commercial complexes, Qinglong has always upheld a meticulous, excellence-striving attitude, fulfilling its corporate mission of "creating beautiful architecture" and contributing professional strength to the field of architectural decoration.