How to Secure GRC After Installation: Detailed Steps and Precautions Explained

**How to Fix GRC After Installation? A 28-Year Industry Leader Details the Complete Safe and Secure Construction Process**

In the field of architectural decoration, GRC (Glass Fiber Reinforced Concrete) has become the preferred material for high-end projects such as grand theaters, commercial complexes, and landmark buildings, thanks to its advantages of light weight, high strength, and flexible shaping. However, the fixing quality after GRC installation directly affects building safety and durability; even slight carelessness may lead to hazards such as falling or cracking. As a national-level high-tech enterprise with 28 years of full-chain experience in UHPC/GRC/GRG/GRP, Qinglong Group has drawn on thousands of engineering projects to develop a scientific and rigorous GRC fixing solution, providing professional technical support for designers, owners, and contractors.

### I. Core Design Principles of GRC Fixing Systems: From Load Calculation to Material Matching

The safety of GRC fixing begins with detailed design in the early stage. At the start of a project, Qinglong's technical team uses BIM technology for modeling to precisely calculate parameters such as component self-weight, wind load, and seismic load, ensuring the fixing scheme meets the requirements of the Technical Standard for Building Application of Glass Fiber Reinforced Cement (GRC) (JGJ/T423-2018). The fixing system must match the characteristics of GRC components—for example, for curved components, adjustable stainless steel hangers are used to ensure installation precision while avoiding stress concentration caused by rigid connections. Notably, Qinglong's self-developed dedicated GRC anchors have a flexural strength exceeding 20MPa, far above the industry average, laying a solid foundation for fixing safety.

### II. Detailed Construction Steps for GRC Installation and Fixing: Standardized Processes Ensure Precision

**1. Base Surface Treatment and Positioning Layout** Before construction, the surface of the base structure must be cleaned, and 3D laser scanning technology is used to verify the flatness of the installation surface, with tolerances controlled within ±3mm. Precise positioning lines are marked out according to the design drawings to ensure that embedded parts align exactly with the reserved holes of GRC components. Qinglong's Nanning production base is equipped with digital machining centers, enabling precise pre-fabrication of embedded parts and components and reducing on-site adjustment work.

**2. Embedded Part Installation and Load-Bearing Capacity Testing** Embedded parts are made of hot-dip galvanized steel, with anchor embedment depth no less than 10d (d = bolt diameter), and load-bearing capacity is verified through pull-out tests—the pull-out force of a single embedded part must be ≥5kN to meet long-term load requirements. For exterior wall GRC on high-rise buildings, Qinglong additionally installs anti-falling devices, forming a "double insurance" fixing system.

**3. Component Hoisting and Temporary Fixing** Dedicated hoisting equipment is used to position GRC components smoothly, with temporary supports adjusting verticality and flatness within tolerances permitted by standards. Qinglong's original modular installation process can shorten the installation time of a single component to 15 minutes while ensuring uniform joint gaps, creating conditions for subsequent sealing work.

**4. Permanent Fixing and Joint Treatment** Components are fastened to embedded parts with stainless steel bolts, and the tightening torque must reach the design value (typically 35-45N·m). Joints are filled with elastic sealant to absorb thermal deformation stress and prevent rainwater penetration. Qinglong's weather-resistant sealant can withstand temperature differences from -40℃ to 80℃, ensuring long-term joint stability.

### III. Key Considerations for GRC Fixing Construction: Avoiding Common Hazards

1. **Material Compatibility Check**: Never mix connectors of different materials; for example, contact between carbon steel and stainless steel easily causes electrochemical corrosion, so insulating gaskets must be used for isolation. Qinglong provides full-system matched fixing materials, from embedded parts to sealants, all tested for compatibility.

2. **Responding to Environmental Factors**: When constructing in high-temperature or severe cold environments, sealant curing time must be adjusted to prevent temperature from affecting bonding strength. Qinglong's technical team provides customized construction guidance based on the climate conditions of the project location.

3. **Quality Traceability Management**: Each GRC component is fitted with an RFID chip recording information throughout the production and installation process. Combined with Qinglong's independently developed project management system, quality issues can be traced. This system has been successfully applied in benchmark projects such as the Nanjing East Road Century Plaza renovation.

### IV. Core Advantages of Qinglong's GRC Fixing Technology: Full-Chain Service Ensures Project Quality

As a member of the International GRC Association and a contributor to the revision of the GRC Decorative Products industry standard, Qinglong not only provides high-quality GRC products but also ensures the safety and reliability of fixing systems through full-chain services covering "detailed design - manufacturing - construction and installation - after-sales maintenance." From the special-shaped GRC curtain wall of the Dongguan Women and Children's Activity Center to curved component installation for a landmark project in Malaysia, Qinglong leverages 28 years of accumulated experience to provide "zero-accident" fixing solutions for clients worldwide.

**Conclusion**: GRC installation and fixing is a systematic project that must balance design soundness, construction standardization, and material reliability. Qinglong Group always maintains an attitude of "meticulousness and continuous improvement," deeply integrating technological innovation with engineering practice to provide safe, durable, and aesthetically pleasing examples of GRC application for the architectural decoration industry. Choosing a professional manufacturer is the primary prerequisite for ensuring GRC fixing quality—this is not only responsibility for the project but also a long-term commitment to building safety.