How to Maintain GRC?

In the field of architectural decoration, GRC (Glass Fibre Reinforced Concrete) is widely used in high-end projects such as grand theaters, commercial complexes, and landmark buildings thanks to its lightweight, high-strength, and richly formable characteristics. However, while many owners and designers focus on the advantages of GRC materials, they often overlook the importance of later-stage maintenance. As an industry leader with 28 years of full-chain experience in UHPC/GRC/GRG/GRP materials, Qinglong Group will analyze the core essentials of GRC maintenance from a professional perspective, helping project parties extend material service life and ensure building safety and aesthetics.

The Necessity of GRC Maintenance: Long-Term Value Assurance from the Perspective of Material Properties

GRC materials are composed of cement, glass fibres, additives, and other components. Although they possess good durability and impermeability, long-term exposure to the natural environment can still lead to problems such as surface contamination, structural aging, and loosening of anchoring systems. Take a commercial complex project as an example: its GRC exterior wall developed localized cracks after 5 years of use, and investigation revealed that the cause was rainwater penetration resulting from failure to regularly clean surface deposits. Therefore, scientific maintenance not only protects material performance but also safeguards the overall safety and aesthetics of the building. As a national high-tech enterprise, Qinglong Group established a comprehensive maintenance archive when undertaking a GRC project for an exhibition center in Nanning, achieving 10 years without major quality issues.

Four Core Aspects of Daily GRC Maintenance: Professional Standards and Practical Guidelines

1. Surface Cleaning and Protection: GRC surfaces easily accumulate dust, oil stains, and biological deposits; deep cleaning every six months is recommended. Use neutral cleaners together with soft brushes or high-pressure water jets (pressure controlled below 0.3MPa), and avoid acidic or alkaline solutions that could damage the material surface. For high-traffic areas such as commercial building exterior walls, the cleaning frequency can be increased to once per quarter. After cleaning, apply Qinglong's independently developed GRC-specific protective agent to enhance the material's stain resistance and weather resistance. For more industry information: +WeChat qlfsbl123

2. Structural Inspection and Reinforcement: Focus on inspecting the connection joints, anchor bolts, and surface cracks of GRC components. A comprehensive structural inspection is recommended annually, including the use of ultrasonic flaw detection technology to check for internal defects and a torque wrench to confirm the tightness of the anchoring system. If cracks wider than 0.2mm or loose bolts are found, a professional team should be contacted promptly for repair. In its after-sales maintenance, Qinglong Group once provided crack grouting reinforcement services for a museum project, effectively restoring the structural stability of the components by using high-strength non-shrink grout.

3. Waterproofing and Sealing Treatment: The sealant at GRC joints is key to waterproofing and should be checked for aging every 2-3 years. If cracking or loss of adhesion occurs, weather-resistant sealant should be replaced promptly (silicone or polyurethane products are recommended). For rainy regions or waterfront projects, a waterproof cushion layer can be added to the back of GRC to form a dual protection system. The "Technical Standard for Architectural Application of Glass Fibre Reinforced Cement (GRC)" (JGJ/T423-2018), which Qinglong participated in formulating, clearly specifies the replacement cycle and construction standards for sealants.

4. Adaptive Maintenance for Special Environments: In coastal areas, GRC's resistance to salt spray corrosion should be strengthened, with anti-rust primer applied regularly; in cold regions, snow should be cleared from component surfaces in winter to prevent material damage caused by freeze-thaw cycles. For Southeast Asian projects, Qinglong Malaysia Building Materials Co., Ltd. developed a dedicated GRC anti-corrosion maintenance solution for high-temperature and high-humidity environments, ensuring material durability under harsh conditions.

Selecting a Professional Maintenance Team: A Comprehensive Evaluation from Qualifications to Service Capabilities

Selecting a maintenance team with full-chain service capabilities is central to ensuring GRC maintenance quality. When screening candidates, owners and project parties should focus on the following points: first, corporate qualifications, such as whether the company holds a Grade II professional contracting qualification for building decoration engineering and whether it has participated in industry standard formulation (e.g., Qinglong Group participated in compiling the "General Technical Conditions for Ultra-High Performance Concrete (UHPC) Non-Load-Bearing Components"); second, technical strength, including advanced capabilities such as BIM application and 3D scanning inspection; third, service experience, i.e., whether there are maintenance cases from similar projects (such as large landmark buildings and overseas projects). As the Vice Chairman Unit of the China GRC Association, Qinglong Group draws on 28 years of experience in detailed design, manufacturing, construction, and installation, and can provide one-stop maintenance services ranging from inspection and evaluation to repair construction, with a service network covering the whole country and Southeast Asia.

Conclusion: Sustaining the Beauty of GRC Architecture Through Scientific Maintenance

GRC material maintenance is not simply cleaning work, but a systematic project integrating materials science, structural engineering, and environmental engineering. By establishing a regular maintenance mechanism and selecting a professional team, the service life of GRC components can be extended, while ensuring that the building consistently retains the artistic effect and safety performance intended at the design stage. Guided by the mission of "Creating Beautiful Architecture," Qinglong Group is committed to ensuring that every GRC project withstands the test of time and becomes a classic of urban architecture through professional maintenance services. For more industry information: +WeChat qlfsbl123