How to Maintain GRC: Key Steps and Best Practices Guide

The enduring beauty of architectural decoration begins with meticulous maintenance. As an industry specialist deeply rooted in the field of GRC (Glass Fiber Reinforced Concrete) materials, Qinglong, with 28 years of full-chain experience, deeply understands the core value of scientific maintenance in extending the service life of GRC components and ensuring building safety. This article systematically analyzes the key steps and best practices of GRC material maintenance, providing a professional guide for designers, owners, and project managers.

The Core Logic of GRC Material Maintenance: From Material Properties to Full Life-Cycle Management

GRC material is centered on glass fiber and cement-based composites, combining the advantages of light weight, high strength, and flexible shaping. It is widely used in grand theaters, commercial complexes, landmark buildings, and other settings. Its maintenance must be based on material properties: the glass fiber reinforcement layer gives components flexural strength (premium GRC can reach over 20MPa), but long-term exposure to the natural environment still requires targeted protection. Through its participation in drafting the Technical Standard for Building Application of Glass Fiber Reinforced Cement (GRC) (JGJ/T423-2018), Qinglong summarized the maintenance principles of "prevention first, tiered maintenance, and technology adaptation," ensuring the long-term unity of material performance and architectural aesthetics.

Key Steps of Daily Maintenance: From Surface Cleaning to Structural Inspection

1. Regular Surface Cleaning and Contaminant Treatment
GRC surfaces are prone to accumulating dust, oil fumes, and biological growth, and require high-pressure water rinsing every quarter (water pressure controlled at 0.3-0.5MPa to avoid damaging the surface coating). For stubborn stains such as oil and rust, a neutral cleaner (pH 6-8) may be used with gentle wiping; strong acids and alkalis are strictly prohibited. Qinglong's component curing experience at its Nanning production base shows that standardized cleaning can improve the color retention rate of GRC surfaces by more than 30%.

2. Structural Safety Inspection and Anchoring System Maintenance
A comprehensive inspection of GRC components is required every year, focusing on: ① aging of the sealant at joints, with weather-resistant silicone sealant replaced promptly; ② whether anchoring points are loose, using a torque wrench to check the fastening force of connectors; ③ whether components have cracks (those wider than 0.2mm must be treated immediately). In the Nanjing East Road Century Plaza renovation project that Qinglong participated in, digital archives of components were established through BIM technology, enabling traceable management of inspection data.

3. Specialized Protection in Special Environments
In coastal areas with high humidity and high salt fog, a penetrating protective agent should be applied to GRC surfaces every 2-3 years to form a hydrophobic protective layer; in severely cold regions, attention should be paid to the effects of freeze-thaw cycles, with regular checks for internal freeze-thaw damage. The customized maintenance plan Qinglong provided for a coastal project in Malaysia enabled GRC components to achieve salt fog resistance of over 5,000 hours.

Best Practices for Long-Term Maintenance: Professional Teams and Technology Empowerment

The professional requirements of GRC maintenance mean it cannot rely on conventional cleaning teams. Qinglong recommends choosing a service provider with full-chain experience in detailed design, production, and construction, such as Qinglong's after-sales maintenance team, which provides "one-stop" services from inspection and assessment to plan formulation and on-site implementation. Component deformation is monitored through 3D laser scanning technology, combined with a database of engineering cases spanning 28 years, to formulate precise maintenance strategies. For example, in a provincial-level cultural center project, the Qinglong team discovered and reinforced the anchoring system of a cantilevered GRC decorative element in advance, avoiding potential safety hazards.

As a national high-tech enterprise and a participant in formulating GRC industry standards, Qinglong has always believed that the value of premium GRC materials lies not only in the precision of manufacturing, but even more in scientific management across the full life cycle. From structural optimization in the detailed design stage, to precise positioning during installation, and then to systematic planning of later maintenance, every link requires professional technical support. Choosing a manufacturer like Qinglong with full-chain service capabilities is both a guarantee of building quality and a long-term protection of asset value. Let the artistic beauty of GRC materials remain ever-fresh through scientific maintenance.