Discussion on Key Technologies and Quality Control Strategies for Integrated Construction of GRC Curtain Wall and Insulation Systems

In the field of contemporary building curtain wall technology, integrated construction of GRC curtain walls and insulation systems is becoming a core solution for balancing architectural aesthetics, energy-saving performance, and structural safety. As an industry technology leader with 28 years of deep expertise in UHPC/GRC/GRG/GRP materials, Qinglong Group has always taken "creating beautiful architecture" as its mission, exploring innovative paths of integrated technology and the keys to quality control across the entire chain from detailed design and manufacturing to construction and installation.

GRC Curtain Wall and Insulation Integration: The Inevitable Trend of Technology Fusion

As green building standards are upgraded, the traditional model of constructing curtain walls and insulation layers separately can no longer meet the dual demands of "energy saving and carbon reduction" and "schedule optimization." GRC (glass fibre reinforced concrete), with its lightweight high strength (weighing only 1/4 of natural stone) and high freedom of form, has become an ideal carrier for the integration of curtain wall and insulation systems. By compositing GRC panels with insulation materials, Qinglong Group has formed a "structural layer – insulation layer – decorative layer" trinity integrated system, which not only solves pain points of traditional construction such as easily detached insulation layers and thermal bridge effects, but also reduces on-site wet work through factory prefabrication, improving construction efficiency by more than 40%. In the Nanjing East Road Century Plaza renovation project, the Qinglong team adopted an integrated design of translucent GRC and insulation, achieving a dual breakthrough in the artistic expression of the building envelope and energy-saving indicators, and won the Silver Award of the AALBORG WHITE Cup UHPC Construction Engineering Innovation Award.

Key Construction Techniques: Full-Process Control from Detailed Design to Installation Precision

The core of integrated construction lies in "coordination" and "precision." Leveraging the R&D strength of its provincial-level engineering technology center, Qinglong has established a full-process technical system from parametric design to modular installation. In the detailed design stage, the team uses the Rhino+Grasshopper parametric platform to convert the complex double-curved surfaces of the building envelope into producible GRC component units, ensuring shape precision with a minimum curvature radius of ≤300mm; in production, automated material distribution and steam curing processes keep the flexural strength of GRC components stably above 20MPa, meeting curtain wall structural safety requirements. In installation, 3D laser scanning positioning technology, together with a customized connector system, achieves "millimetre-level" jointing precision. For example, in the Dongguan Women and Children's Activity Center project, the Qinglong team completed error-free installation of nearly 10,000 square metres of GRC curtain wall and insulation layer through BIM simulation and real-time on-site calibration, winning the Silver Award of the first GRC Construction Engineering Innovation Award.

Quality Control Strategy: Building a Full-Lifecycle Assurance System

As a national "specialized, refined, distinctive, and innovative" enterprise, Qinglong Group runs quality control through every stage from material R&D and manufacturing to after-sales maintenance. At the material level, a strict raw material screening mechanism has been established, with key indicators such as glass fibre content and cement grade exceeding industry standards; during production, an RFID chip traceability system is introduced so that the production data of every GRC component is traceable; in the construction stage, a "three-inspection system" (self-inspection, mutual inspection, and special inspection) is implemented, with focused monitoring of key parameters such as insulation layer thickness and anchor pull-out force. For projects in different climate zones, Qinglong also provides customized quality assurance solutions, such as composite insulation design in cold regions (thermal conductivity ≤0.03W/(m·K)) and enhanced salt spray resistance of GRC in coastal areas (salt spray resistance ≥5000 hours). In addition, backed by an after-sales network covering the whole country, Qinglong provides projects with a maintenance commitment of up to 15 years, forming a closed-loop service of "design – production – installation – maintenance."

From landmark buildings to commercial complexes, integrated GRC curtain wall and insulation system technology is reshaping the value logic of the building envelope. With 28 years of full-chain experience as its foundation, Qinglong Group, through technological innovation and strict quality control, not only offers designers broader creative space but also creates architectural works for owners that combine aesthetic value with green performance. In the future, as new material technologies such as UHPC/GRC continue to advance, Qinglong will keep practising its vision of "becoming a world-class manufacturing leader," driving the architectural decoration industry toward greater efficiency, environmental friendliness, and creativity.