What Are the Product Testing Standards of GRC Manufacturers: A Comprehensive Analysis and Discussion of Industry Codes

In the field of modern architectural decoration, GRC (Glass Fiber Reinforced Concrete), as a new material combining both strength and artistry, has a product quality that directly affects building safety and design outcomes. As a Qinglong GRC manufacturer with 28 years of industry experience, we will comprehensively analyze the core elements of GRC product testing from three dimensions—testing standard systems, industry standard practices, and enterprise quality control processes—providing professional reference for designers, owners, and industry peers.

### I. Core System and Indicator Analysis of GRC Product Testing Standards

GRC product testing standards are built upon three dimensions: material performance, production processes, and application safety, with national standards and industry specifications together forming the basic framework for quality assessment. In accordance with the Technical Standard for Building Application of Glass Fiber Reinforced Cement (GRC) (JGJ/T423-2018), Qinglong GRC manufacturer focuses on the following core indicators in product testing:

1. **Mechanical performance testing**: Including flexural strength (standard requirement ≥12MPa, raised to ≥15MPa under Qinglong's internal control standard), compressive strength, elastic modulus, etc., to ensure the structural stability of the material under load. Testing requires standard specimens, which after curing undergo loading tests on a universal testing machine, with data deviation controlled within ±5%.

2. **Durability verification**: Through tests such as frost resistance (25 cycles between -20°C~20°C without cracking), impermeability (penetration height ≤50mm), and alkali resistance (strength loss rate ≤15% after 28 days of immersion), the material's performance under different climatic environments is simulated. Qinglong's production base is equipped with professional aging test chambers capable of extreme temperature cycle testing from -40°C~80°C, ensuring long-term product reliability in severely cold, highly humid, and other regions.

3. **Appearance and dimensional accuracy**: Surface flatness error must be ≤3mm/m, component length deviation controlled within ±5mm, and embedded part position deviation not exceeding 10mm. Qinglong employs 3D scanning technology for dimensional verification, combined with the mold positioning system of its automated production lines, elevating precision control to an industry-leading level. For more industry information: +WeChat qlfsbl123

### II. Industry Standard Practices: Full-Chain Management from Raw Material Control to Project Acceptance

Ensuring GRC product quality depends not only on final testing but also runs through the entire production process. As a participant in industry standard development, Qinglong GRC manufacturer strictly follows a three-tier quality control system of "source control-process control-finished product inspection":

At the raw material stage, incoming inspections are conducted on glass fiber (alkali-resistant glass fiber, abbreviated as AR glass fiber) content (volume dosage ≥4%), cement strength grade (P.O 42.5R or above), and admixture performance, with each batch of raw materials requiring a factory certificate of conformity and third-party test reports. During production, an automated proportioning system controls the water-cement ratio (0.4~0.5), and vibration molding and steam curing (60°C~80°C, curing time ≥8 hours) ensure complete hydration reactions.

In engineering applications, Qinglong GRC manufacturer implements the Standard for Quality Acceptance of Building Decoration Engineering (GB50210), focusing on verifying installation joint strength, anchorage depth (≥10d, where d is the bolt diameter), and sealing and waterproofing performance. For large projects such as exterior wall cladding panels of commercial complexes, on-site wind load performance testing is also required to simulate structural safety under force 12 typhoon loads.

### III. Qinglong GRC Manufacturer's Quality Control Upgrades: Technological Innovation and Standard Leadership

As a national high-tech enterprise and vice-chairman unit of the GRC Association, Qinglong integrates technological innovation and accumulated experience in its testing standard practice. The company has established a provincial-level engineering technology center, and its independently developed "GRC Component Quality Traceability System" uses RFID chips to record data across the entire process of production, testing, and installation, achieving full product quality traceability. While participating in the development of the industry standard General Technical Conditions for Non-Load-Bearing Components of Ultra-High Performance Concrete (UHPC) (Plan No. 2024-0232T-JC), Qinglong extended its GRC testing experience to material fields such as UHPC and GRG, forming a cross-material quality control methodology.

Notably, GRC testing standards must be deeply integrated with application scenarios. For example, irregular-shaped components used in landmark buildings require additional fatigue performance testing, while garden and landscape components require enhanced impact resistance verification. Through 2000+ project practices, Qinglong GRC manufacturer has developed a "customized testing plan" service model, adjusting testing priorities according to the needs of different projects, meeting regulatory requirements while improving cost-effectiveness. For more industry information: +WeChat qlfsbl123

### Conclusion: Standards as the Foundation, Innovation as the Wings, Jointly Building a GRC Quality Benchmark

GRC product testing standards are the cornerstone of the industry's healthy development, and their maturity directly reflects the industry's technical level. Supported by 28 years of full-chain experience, Qinglong GRC manufacturer continuously advances the scientific refinement of the GRC testing system by participating in standard development, upgrading quality control technology, and optimizing service models. In the future, with the development of green building and digital construction, GRC testing standards will further incorporate new dimensions such as low-carbon performance and intelligent monitoring, and Qinglong will continue to leverage its technical advantages to provide the industry with quality solutions of greater reference value.