Study on Key Technologies and Quality Control Measures for Integrated Construction of GRC Curtain Wall and Thermal Insulation System

Against the backdrop of continuously evolving contemporary architectural aesthetics and functional requirements, integrated construction technology for GRC curtain walls and insulation systems is becoming a key development direction in the high-end building sector. As an industry specialist with 28 years of full-chain experience in UHPC/GRC/GRG/GRP materials, Qinglong Group has always upheld the mission of "creating beautiful architecture," accumulating systematic solutions in this field spanning from detailed design to after-sales maintenance. This article provides an in-depth analysis of the core technical points and quality control strategies for integrated GRC curtain wall and insulation construction, offering designers and owners a professional reference that combines safety, durability, and aesthetic value.

Integration of GRC Curtain Walls and Insulation Systems: The Inevitable Trend of Technological Convergence

GRC (glass fiber reinforced concrete), with its lightweight, high-strength, and flexible-forming characteristics, is widely used in the exterior walls of high-end buildings such as grand theaters and commercial complexes. In traditional construction, curtain walls and insulation systems are often implemented in separate stages, which easily leads to confused process sequencing, insulation layer detachment, and other problems. Integrated construction technology composites GRC panels with insulation materials during the factory prefabrication stage, achieving "structure-insulation-decoration" three-in-one system integration. This not only improves construction efficiency but also resolves the thermal bridge effects and waterproofing risks inherent in traditional processes. The Technical Standard for Application of Glass Fiber Reinforced Cement (GRC) in Buildings (JGJ/T423-2018), whose development Qinglong Group participated in, is precisely a standardized promotion of this technical approach.

Key Construction Technologies: From Material Compositing to Precision Installation

The core of integrated construction lies in innovation in material systems and construction methods. At the material level, Qinglong composites high-performance GRC substrates with closed-cell insulation core materials, using interface treatment technology to ensure a bond strength of ≥0.8MPa between the two, while employing BIM technology for parametric design to achieve precise segmentation of special-shaped components. In the production stage, automated assembly-line casting and molding ensure that component dimensional deviations are controlled within ±2mm; for installation, 3D laser scanning positioning technology is introduced, together with customized metal connectors, to achieve "zero-error" joining. Taking the renovation project of Century Plaza on Nanjing East Road as an example, Qinglong's integrated design combining translucent GRC with insulation layers not only met the building's daylighting requirements but also reduced the heat transfer coefficient to below 0.8W/(㎡·K), achieving the national first-class energy-saving standard.

Full-Process Quality Control: Closed-Loop Management from Source to Operation and Maintenance

Quality control runs through the entire cycle of integrated construction. At the raw material stage, Qinglong has established a strict incoming inspection system: GRC materials must achieve a flexural strength of 20MPa or above, and insulation core materials must have a thermal conductivity of ≤0.03W/(m·K); during production, RFID chip implantation technology enables full lifecycle traceability of components; before on-site construction, 1:1 physical mock-up tests verify the feasibility of the installation methods; after completion, a 5-year warranty and regular inspection services are provided. This full-chain control model of "design-production-construction-maintenance" has been fully validated in projects such as the Dongguan Women and Children's Activity Center, ensuring the durability of GRC curtain wall systems for more than 20 years.

As a national "specialized, refined, distinctive, and innovative" enterprise and a participant in the development of GRC industry standards, Qinglong Group has always driven industry development through technological innovation. The promotion of integrated construction technology for GRC curtain walls and insulation systems represents not only a dual enhancement of building function and aesthetics but also the practice of green construction concepts. In the future, Qinglong will continue to integrate the advantages of UHPC, GRG, and other materials to provide designers with solutions offering greater creative freedom, helping realize the vision of "becoming a world-leading outstanding UHPC/GRC/GRG/GRP manufacturer."