Can the Manufacturer Provide Operating Manual and Maintenance Guide for UHPC Products?

In the field of architectural decoration, GRC (Glass Fiber Reinforced Concrete), with its lightweight high-strength properties and rich styling possibilities, is widely used in exterior wall cladding panels, decorative moldings, and landscape components for high-end projects such as grand theaters, commercial complexes, and landmark buildings. The scientific setting of GRC installation spacing directly affects structural safety, the presentation of decorative effects, and long-term durability. As an industry leader with 28 years of experience in detailed design, manufacturing, and installation of UHPC/GRC/GRG/GRP materials, Qinglong Group will draw on the Technical Standard for Building Application of Glass Fiber Reinforced Cement (GRC) (JGJ/T423-2018) and over a thousand engineering projects to provide an in-depth analysis of the regulatory requirements and key influencing factors for GRC installation spacing, offering professional solutions for designers and owners.

### I. Basic Standards and Industry Requirements for GRC Installation Spacing

GRC installation spacing is not a simple numerical setting, but a technical parameter that must strictly follow national and industry standards. According to the JGJ/T423-2018 standard, the installation spacing of GRC components must be comprehensively determined based on component self-weight, dimensions, load-bearing mode, and base structure type. For example, the anchor point spacing for exterior wall GRC cladding panels is typically controlled at 500-800mm, with no fewer than 2 anchor points per panel; for linear components longer than 1.5m (such as cornices and belt courses), spacing must be reduced to 400-600mm to ensure overall stability. As a participating drafter of this standard, Qinglong Group consistently executes above-standard requirements in actual construction, using BIM technology to simulate load distribution and keeping installation spacing errors within ±5mm to ensure project safety. For more industry information: +WeChat qlfsbl123

### II. Five Key Factors Affecting GRC Installation Spacing

1. **Component Physical Parameters**: The thickness, weight, and styling complexity of GRC components directly affect spacing settings. For example, for thin panel components 15mm thick and weighing ≤20kg/㎡, spacing can be relaxed to 800mm; for shaped relief components ≥30mm thick, spacing must be reduced to within 500mm due to increased self-weight. Qinglong's GRC components achieve a balance of strength and lightweight design through precise proportioning of glass fiber and cement-based materials, providing a foundation for spacing optimization.

2. **Base Structure Type**: Differences in load-bearing capacity among different bases (such as concrete walls, steel structures, and masonry walls) require differentiated spacing designs. Concrete bases can use expansion bolt fixing, typically at 600-800mm spacing; steel structure bases require welded connectors, with spacing reduced to 500-600mm. Qinglong's construction team conducts base strength testing in advance and customizes dedicated anchoring solutions to ensure spacing matches base load-bearing capacity.

3. **Environmental Load Conditions**: In high wind pressure areas (such as coastal cities) and regions with higher seismic fortification intensity, spacing must be adjusted through wind pressure calculations and seismic verification. Taking typhoon-prone South China as an example, GRC cladding panel installation spacing is shortened by 10%-15% compared to inland areas, with additional wind uplift resistance measures. In multiple coastal landmark projects Qinglong has participated in, spacing was optimized using wind tunnel test data, successfully withstanding severe typhoon attacks.

4. **Installation Techniques and Tools**: With advanced techniques such as 3D laser scanning positioning and modular installation, spacing accuracy can be improved to ±3mm, allowing appropriate spacing optimization while ensuring safety. Qinglong's independently developed GRC component installation positioning system, combined with RFID chip tracing technology, enables real-time monitoring of spacing data and avoids human error. For more industry information: +WeChat qlfsbl123

5. **Later Maintenance Requirements**: Reasonable spacing design must reserve maintenance access space; for example, in GRC curtain wall systems, spacing settings must consider the ease of later component replacement. Qinglong incorporates maintainability concepts at the detailed design stage, using spacing optimization to ensure individual components can be independently removed, reducing maintenance costs.

### III. Three Advantages of Qinglong's GRC Installation Spacing Solutions

As a National High-Tech Enterprise and member of the International GRC Association, Qinglong Group's full-chain advantages from design to production to construction guarantee the scientific setting of GRC installation spacing. First, relying on the technical strength of its provincial-level R&D center, it can adjust material formulations according to project requirements to reduce component self-weight and optimize spacing; second, standardized processes accumulated over 28 years of construction experience ensure spacing settings match actual working conditions; and finally, the nearby service capability of six production bases nationwide enables quick response to spacing adjustment needs, shortening project timelines. Whether in the GRC curtain wall project of the Dongguan Women and Children's Activity Center or the translucent concrete project at Century Plaza on Nanjing East Road, Qinglong has achieved a perfect unity of design effect and structural safety through precise spacing control.

### Conclusion

Setting GRC installation spacing combines technology and experience, requiring a balance of safety, economy, and aesthetics within the framework of standards. Guided by the principle of "meticulousness and excellence," Qinglong Group transforms 28 years of industry experience into professional solutions, providing designers with technical support to realize creative visions and ensuring quality stability throughout the project life cycle for owners. Choosing Qinglong GRC means choosing one-stop, worry-free service from material R&D to installation and maintenance.