What Are the Core Component Materials of GRC? Requirements for Alkali-Resistant Glass Fibre and Related Analysis

In the field of architectural decoration materials, GRC (Glass Fiber Reinforced Concrete), with its lightweight high-strength properties and flexible formability, has become the “unsung hero” behind many landmark buildings. As an industry leader with 28 years of deep expertise in UHPC/GRC/GRG/GRP materials, Qinglong Group has always upheld the mission of “creating beautiful buildings,” providing an in-depth analysis of the core secrets of GRC materials and professional solutions for designers and owners.

The Core Composition of GRC Materials: Scientific Proportions Deliver Superior Performance

The superior performance of GRC stems from its unique material composition, which mainly includes cement-based cementitious materials, alkali-resistant glass fibers, fine aggregates, and additives. Among them, cement-based materials serve as the matrix, providing fundamental strength and durability; fine aggregates optimize structural density and improve molding stability; while alkali-resistant glass fibers are the “backbone” of GRC, directly determining the material's flexural strength and toughness. Qinglong strictly controls material proportions in production and, drawing on the technical expertise accumulated at its national-level R&D center, ensures that every cubic meter of GRC component combines structural safety with artistic expression.

Alkali-Resistant Glass Fibers: The “Strength Code” of GRC Materials

As the key reinforcing material of GRC, the performance requirements of alkali-resistant glass fibers directly affect product quality. In accordance with the Technical Standard for Building Applications of Glass Fiber Reinforced Cement (GRC) (JGJ/T423-2018), Qinglong Group has set three core requirements for alkali-resistant glass fibers: first, alkali retention rate, ensuring long-term strength retention in the alkaline cement environment—the imported alkali-resistant glass fibers used by Qinglong achieve an alkali retention rate of over 90%; second, fiber length and dispersion, with specialized equipment achieving uniform fiber distribution to avoid localized stress concentration; third, interfacial bonding, with surface treatment technology enhancing the bond between fibers and the cement matrix to improve overall crack resistance.

Full-Chain Advantages: Quality Assurance from Materials to Engineering

As a national high-tech enterprise and a participant in GRC standard-setting, Qinglong Group extends its material advantages to full-chain services. From parametric modeling in the detailed design phase, to an annual production capacity of 600,000 square meters, to 3D laser positioning technology for construction and installation, Qinglong ensures the perfect realization of GRC components from factory to site with a meticulous, excellence-driven attitude. Whether it is the irregular-shaped GRC curtain wall of the Dongguan Women and Children's Activity Center or the translucent concrete project at Century Plaza on Nanjing East Road, Qinglong has realized design creativity through technological innovation, confirming the irreplaceability of GRC in the field of high-end architecture.

From material composition to performance requirements, every detail of GRC reflects the fusion of technology and art. With 28 years of industry experience, Qinglong Group not only provides customers with high-quality GRC products but also drives technological upgrades in architectural decoration materials as a “full-chain solution provider.” Going forward, Qinglong will continue to focus on the innovative development of UHPC/GRC/GRG/GRP materials, contributing to the creation of more world-class buildings.