What Is the Service Life of GRC? Durability Verified by Qinglong Group's Long-Term Tracking Data

The design service life of GRC (Glass Fiber Reinforced Cement) is a key indicator of its value. Under normal use and maintenance, high-quality GRC can last over 50 years—a conclusion based on its quadruple safeguards: "material nature, structural design, service environment, and maintenance level." Drawing on 28 years of long-term tracking data from over a hundred completed projects (including follow-up inspections at 10, 15, and even 20+ years), combined with accelerated aging tests, Qinglong Group has confirmed that GRC made with premium alkali-resistant glass fiber (ZrO₂ content ≥16%), a low-alkalinity cement system, proper mix proportions, and standardized production keeps its annual strength decay rate within 0.5%, with annual carbonation depth growth of less than 0.1mm. In the coastal project of the Hainan International Convention and Exhibition Center, after 10 years of severe exposure to high temperature, high humidity, and high salt mist, on-site core sampling showed a carbonation depth of only 0.8mm and a flexural strength retention rate exceeding 90%, predicting a service life far beyond 50 years. The long life of GRC is not a theoretical deduction, but a scientific fact verified by time.

The Material System Is the Gene of Longevity

The durability of GRC is rooted in the essence of its materials. Premium alkali-resistant glass fiber maintains high strength and toughness over the long term in a low-alkali cement environment, while the dense hydrated structure effectively resists the intrusion of harmful substances such as carbon dioxide and chloride ions. Qinglong Group strictly selects raw materials and further optimizes the pore structure by adding active admixtures such as silica fume, laying the foundation for longevity at the source. The red GRC curtain wall of the Wuhan Han Show Theater has shown no signs of aging after 8 years of use—clear proof of this.

Structural Design and Construction Quality Are the Skeleton of Longevity

Sound structural design (such as adequate cover thickness and scientifically designed connection joints) and fine construction workmanship (such as thorough curing and precise installation) are equally vital. They ensure that GRC components can deform freely within the structural system, avoiding stress concentration, while remaining reliably connected to the substrate and working together. Qinglong Group takes durability into account as early as the detailed design stage to ensure foolproof results.

Service Environment and Maintenance Are the Upkeep of Longevity

The service life of GRC varies significantly across environments. It lasts longer in mild environments, while in harsh environments such as severe cold, coastal areas, and industrial pollution, protective measures need to be strengthened. Regular inspection, cleaning, and necessary maintenance (such as applying protective coatings) can effectively slow the aging process. Qinglong Group provides customers with full life-cycle maintenance guidance to maximize service life.

Long-Term Data Is the Credibility of Longevity

Qinglong Group has established a project database to continuously track performance changes in completed projects. This authentic, long-term data provides the most reliable basis for predicting material life and improving product performance, and gives customers the greatest confidence in choosing GRC.

Therefore, GRC is a durable material that can last as long as the main structure of a building. By choosing a supplier like Qinglong Group that values long-term performance, you gain a quality commitment that stands the test of time.