Analysis of Key Production Process Points and Technical Essentials for High-Strength GRC Panels

In the field of modern architectural decoration, material selection directly affects a building's safety, aesthetics, and durability. As an industry leader with 28 years of full-chain experience in UHPC/GRC/GRG/GRP materials, Qinglong Group deeply understands the core value of GRC materials in high-end architecture. This article provides an in-depth analysis of the key points in high-strength GRC panel production processes, offering professional technical references for designers, owners, and engineering parties to help create architectural works that combine aesthetics with performance.

I. Material Proportions and Process Fundamentals of High-Strength GRC Panels

The performance advantages of high-strength GRC panels (glass fiber reinforced concrete) stem from scientific material proportions and advanced processes. Qinglong Group strictly controls the proportions of cement, glass fiber, aggregates, and admixtures in production, with the alkali-resistant glass fiber content precisely controlled at 3%-5% to ensure the panels achieve flexural strength above 20MPa, far exceeding ordinary cement products. Meanwhile, customized proportion designs adjust the material's elastic modulus and density for different application scenarios (such as exterior wall cladding panels and landscape components), achieving the "lightweight and high-strength" characteristic—weighing only 1/4 of traditional stone, yet meeting the stringent requirements of high-rise buildings for wind pressure resistance and seismic performance.

II. Precise Control of Mold Design and Forming Processes

Molds are the core carriers for GRC panel forming, directly determining product precision and surface texture. Qinglong Group adopts 3D scanning and parametric design technologies (such as Rhino and Grasshopper) to achieve custom molds for complex shaped components, with minimum curvature radius controllable within 300mm. In forming processes, the advantages of both spraying and premixing are combined: the spraying process ensures uniform distribution of glass fiber, enhancing the panels' crack resistance; the premixing process is suitable for large-size flat panel production, ensuring surface flatness. In addition, through the combination of steam curing and natural curing, the panels' 28-day compressive strength remains stable above 60MPa, meeting the highest grade requirements of the "Technical Standard for Building Applications of Glass Fiber Reinforced Cement (GRC)" (JGJ/T423-2018).

III. Quality Control and Full-Process Quality Assurance System

As a national high-tech enterprise, Qinglong Group has established a full-process quality control system covering "design-production-installation." In the production stage, each batch of panels undergoes more than 20 tests covering flexural strength, water absorption, and freeze-thaw cycles, with key indicators such as chloride ion content strictly controlled below 0.06%, ensuring durability of more than 50 years. The installation phase employs BIM technology and 3D laser scanning positioning to achieve "zero-error" splicing, combined with customized anchoring systems to effectively avoid the risk of falls from heights. This system has not only ensured the perfect implementation of benchmark projects such as the Dongguan Women and Children's Activity Center and Nanjing East Road Century Plaza, but has also enabled Qinglong's GRC products to pass rigorous certifications in overseas markets such as Malaysia and Australia.

IV. Technological Innovation and Industry Standard Leadership

Backed by a provincial-level R&D center and 58 patented technologies, Qinglong Group continuously drives innovation in GRC processes. For example, by incorporating nano-scale silica fume to improve material density, the company developed light-transmitting GRC components, realizing the artistic fusion of "light, shadow, and architecture" in the Nanjing East Road Century Plaza renovation project. Meanwhile, as a primary revising unit of the industry standard "Glass Fiber Reinforced Cement (GRC) Decorative Products" (JC/T940-2022), Qinglong actively shares its 28 years of practical experience, promoting the industry's transformation from "experience-based production" to "standardized manufacturing" and providing designers with more reliable material application references.

From material proportions to forming processes, from quality control to technological innovation, the production of high-strength GRC panels is the crystallization of science and experience. With the mission of "creating beautiful architecture," Qinglong Group will continue to leverage its full-chain service capabilities to provide GRC solutions combining safety and artistry for real estate, municipal, cultural, and other sectors, helping the construction industry achieve a balanced breakthrough in "aesthetics and performance." Choosing Qinglong GRC means choosing architectural quality that stands the test of time.