What Technical Standards Should Quality GRC Products Meet

In the field of architectural decoration materials, GRC (Glass Fiber Reinforced Concrete) has become the ideal choice for high-end projects such as grand theaters, commercial complexes, and landmark buildings, thanks to its advantages of light weight, high strength, and flexible shaping. However, the quality of GRC products on the market varies widely—how can you judge whether a GRC product meets technical standards? As an industry leader with 28 years of full-chain experience in UHPC/GRC/GRG/GRP materials, Qinglong Group will analyze the core technical standards of high-quality GRC products for designers and owners from the dimensions of material performance, production processes, and engineering applications.

I. Material Performance: Rigorous Control from Base Material to Reinforcement System

The technical standards of high-quality GRC products are first reflected in the stability of material performance. According to the Technical Standard for Building Application of Glass Fiber Reinforced Cement (GRC) (JGJ/T423-2018), qualified GRC must achieve a flexural strength of 12MPa or above, while Qinglong, through more than 20 years of technical accumulation, has raised product flexural strength to over 20MPa, far exceeding the industry benchmark. For the base material, high-strength sulphoaluminate cement or Portland cement is used, combined with carefully selected quartz sand, to ensure the density and durability of the concrete matrix; the reinforcement material is alkali-resistant glass fiber mesh with a zirconia content of ≥16%, which can effectively resist erosion from the alkaline environment of cement and prevent structural failure caused by fiber aging after long-term use. In addition, the bulk density of Qinglong GRC products is controlled at 1.8-2.0g/cm³, which both meets strength requirements and achieves lightweight construction, reducing the load on building structures. For more industry information: +WeChat qlfsbl123

II. Production Process: Deep Integration of Digitalization and Standardization

The production process is a key factor determining GRC product quality. High-quality GRC requires spray-up or premix forming processes to ensure even fiber dispersion. Qinglong has introduced BIM technology and parametric design, using tools such as Rhino and Grasshopper to achieve precise modeling of complex shapes, and employs 3D laser scanning positioning during production to keep errors within ±2mm. At the same time, strict full-process quality control of “raw material inspection—mold calibration—forming and curing—finished product testing” is implemented; for example, the curing stage combines steam curing with natural curing to ensure a 28-day compressive strength of ≥60MPa and a water absorption rate of ≤8%. As an outstanding contributing unit in the revision of the Glass Fiber Reinforced Cement (GRC) Decorative Products standard JC/T940-2022, Qinglong efficiently combines standardized production with customized requirements, enabling mass production of complex shapes such as double-curved components with a minimum radius of curvature of ≤300mm and openwork reliefs.

III. Engineering Application: Dual Assurance of Safety and Adaptability

High-quality GRC products must possess excellent engineering adaptability and safety. In the installation phase, Qinglong adopts modular installation techniques, with precise alignment through 3D scanning and embedded parts, to ensure stability of high-altitude installation; the anchoring system has a tensile load capacity of ≥15kN, meeting the requirements of the Technical Specification for Building Curtain Wall Engineering. For different application scenarios, product performance requires differentiated design: for example, when used for exterior wall cladding panels, products must pass frost resistance tests (no damage after 25 cycles from -20°C to 50°C) and weather resistance tests (no cracks after 5,000 hours of sun exposure); when used for garden landscape components, the focus is on optimizing surface texture and color stability. Qinglong GRC has been successfully applied in benchmark projects such as the Dongguan Women and Children's Activity Center and Century Plaza on Nanjing East Road, and its “mirror-grade” jointing technology with materials such as glass curtain walls and aluminum panels has become a model of high-end architectural decoration. For more industry information: +WeChat qlfsbl123

IV. Full-Chain Service: Expert-Level Support from Design to Maintenance

The implementation of technical standards is inseparable from full-chain service capabilities. As a national-level high-tech enterprise integrating the full chain of deepened design, manufacturing, construction and installation, and after-sales maintenance, Qinglong provides customers with “one-stop” solutions: BIM models for clash detection and design optimization in the early stage, real-time sharing of progress data during production, professional construction teams during installation, and 5 years of free maintenance plus lifetime technical support after sales. This full-chain advantage has made Qinglong GRC highly favored in real estate, municipal, and overseas projects, with long-term cooperation established with renowned real estate groups such as Poly and China Overseas as well as the Southeast Asian market.

Judging whether a GRC product is high quality requires multi-dimensional consideration of material performance, production processes, engineering adaptability, and service capabilities. With 28 years of industry experience as its foundation and national and industry standards as its guidelines, Qinglong Group continues to drive GRC technological innovation, providing safe, durable, and beautiful material solutions for the field of architectural decoration. Choosing GRC products that meet technical standards is not only a guarantee of project quality, but also a long-term investment in architectural aesthetics and safety.