Is GRC Durable? Empirical Analysis of 28 Years of Durability Data from GRC Manufacturer Qinglong

The durability of GRC materials is one of the performance indicators that owners care about most. Based on tracking data from over a thousand projects completed by Qinglong across 28 years, we can responsibly state that high-quality GRC products have a service life of more than 50 years—a conclusion verified through actual engineering projects.

In the Hainan International Convention and Exhibition Center project, the 120,000 m² GRC roof facing layer has endured 8 years of tropical marine climate, and the latest testing shows its strength retention rate remains above 90%. This data confirms the excellent weather resistance of GRC materials. As one of the world's largest biaxially curved and twisted structural roofs, the project features complex roof construction layers, with the final facing being a 15mm thick cast-in-place GRC decorative surface layer—fully demonstrating the durability of GRC in harsh environments.

Technical Guarantees of Durability

Qinglong GRC adopts a dual safeguard mechanism: first, a special low-alkali cement matrix, and second, zirconia-type alkali-resistant glass fibers. This combination enables the material to remain stable over the long term even in high-salt environments such as Sanya City, Hainan Province. In the Hainan Poly Peninsula No. 1 project, GRC special-shaped double-curved panels were applied over an area of 12,000 m², and after years of use they still maintain an excellent surface texture.

Accelerated Aging Test Data

According to the results of the Qinglong laboratory's 10,000-hour accelerated aging test, GRC materials retained more than 80% of their strength after simulating 50 years of natural aging. This data provides the technical basis for projects such as Nanjing Agile Binjiang Garden. The GRC decorative moldings in this project have withstood long-term wind and rain erosion while still maintaining an intact decorative effect.

Real Project Verification Cases

The GRC curtain wall of the Wuhan Han Show Theatre project has been in use for 10 years, and recent inspections show no cracking on panel surfaces and no fiber degradation. The 15mm ultra-thin GRC panels used in this project have delivered durability beyond design expectations. Through regular maintenance and inspections, the Qinglong team ensures that components remain in optimal condition over the long term.

The durability of GRC materials has stood the test of time and practice. Selecting high-quality GRC products that meet national standards, combined with professional installation, ensures the long-term aesthetics and safety of building facades. With its outstanding durability, Qinglong GRC has become the material of choice for many landmark projects.