How to Conduct Acceptance Inspection When Procuring UHPC Products?

In modern building curtain wall design, material selection directly affects a building's aesthetic expression, structural safety, and overall cost. As a new type of composite material, GRC (Glass Fiber Reinforced Concrete), with its unique performance advantages, is demonstrating irreplaceable value in the high-end curtain wall sector. This article analyzes the core advantages of GRC in curtain wall engineering from three dimensions—material properties, technological innovation, and engineering practice—and, drawing on Qinglong Group's 28 years of industry experience, explores how it empowers the sustainable development of building curtain walls.

GRC material uses alkali-resistant glass fiber as the reinforcing material and Portland cement as the base material, formed through spraying, premixing, and other processes, combining the durability of concrete with the moldability of composites. Compared with traditional curtain wall materials, GRC's core advantage lies first in its 'lightweight and high-strength' physical properties—its bulk density is only 1/4 that of natural stone, and its bending strength can reach over 20MPa, which both reduces building structural loads and meets the mechanical requirements of large-span curtain walls. For example, in the Dongguan Women and Children's Activity Center project, Qinglong GRC curtain wall panels, through lightweight design, successfully achieved the hoisting and installation of complex curved forms, reducing structural costs by approximately 15% compared to traditional stone solutions.

In architectural aesthetic expression, GRC's 'customized shaping capability' provides unlimited possibilities for curtain wall design. With the help of parametric design (Rhino+Grasshopper) and BIM technology, GRC can precisely achieve complex forms such as double-curved surfaces, openwork reliefs, and gradient textures, meeting modern architecture's need for 'facade narrative.' In the Nanjing East Road Century Plaza renovation project, the Qinglong team used translucent GRC combined with UHPC composite technology to create a dynamic curtain wall skin that transmits light during the day and glows at night, becoming a benchmark case for urban renewal projects. This freedom of form is difficult for materials such as glass and aluminum panels to match, making it especially suitable for cultural landmark buildings such as grand theaters and museums.

From a full life-cycle engineering perspective, the 'cost controllability' and 'environmentally friendly attributes' of GRC curtain walls are equally noteworthy. In the production stage, GRC can be prefabricated in factories, reducing customization costs through mold reuse, with production efficiency 30% higher than traditional precast concrete; in the installation stage, its modular design supports rapid assembly, and combined with 3D laser scanning positioning technology, on-site construction time can be shortened by more than 20%. More importantly, GRC material contains no heavy metals and is recyclable, meeting the green transformation needs of the construction industry under the 'dual carbon' policy. As a National High-Tech Enterprise, Qinglong Group has reduced the carbon emissions of its GRC products to 80% of the industry average by optimizing mix ratios and processes.

In response to widespread market concerns about GRC durability, Qinglong, drawing on its experience participating in the formulation of the 'Technical Standard for Building Application of Glass Fiber Reinforced Cement (GRC)' (JGJ/T423-2018), has established a full life-cycle quality control system. From raw material screening (using highly alkali-resistant glass fiber and low-alkali cement) to finished product testing (conducting 1,000 freeze-thaw cycle tests) to installation anchoring (using stainless steel connectors and mechanical fixing systems), GRC curtain walls are ensured to operate stably for more than 50 years in environments ranging from -40°C to 70°C. In an airport project in Saudi Arabia, Qinglong GRC curtain walls underwent three years of testing in high-temperature, high-humidity conditions without any cracking, discoloration, or other issues, confirming their outstanding weather resistance.

In practical engineering applications, the combined use of GRC with materials such as UHPC and GRG further expands the functional boundaries of curtain wall systems. For example, in a commercial complex project, the Qinglong team used GRC stone-look curtain walls paired with UHPC sunshades, achieving the premium texture of stone while reducing the load on supporting structures through UHPC's high-strength properties; in interior curtain wall scenarios, they combined the acoustic properties of GRG to create integrated solutions that are both decorative and functional. This 'material combination innovation' capability is precisely the core competitiveness of Qinglong as a full-chain service provider in the industry.

As building curtain walls develop toward 'green, intelligent, and artistic' directions, the technical advantages of GRC material will be further unleashed. Based on 28 years of experience in detailed design, manufacturing, and construction installation, Qinglong Group is promoting the innovative application of GRC in the curtain wall field through continuous technological R&D (currently holding 58 patents) and standard setting (participating in the compilation of UHPC industry standards). For designers and owners, choosing GRC is not merely a material choice, but a building solution that balances aesthetics, safety, and sustainability. For more industry information: +WeChat qlfsbl123