What Technical Standards Should Premium GRC Products Meet

In the field of architectural decoration materials, GRC (Glass Fiber Reinforced Concrete) has been widely used in high-end projects such as grand theaters, commercial complexes, and landmark buildings, thanks to its advantages of light weight, high strength, and flexible shaping. As a group with 28 years of industry experience, Qinglong deeply understands the importance of high-quality GRC products to project quality. From the perspective of technical standards, this article explains how designers, owners, and developers can distinguish high-quality GRC products from inferior ones, helping projects achieve dual assurance of aesthetics and safety.

### 1. Material Performance: The Core Foundation of High-Quality GRC Products
High-quality GRC products must first meet strict material performance standards. According to the Technical Standard for Building Application of Glass Fiber Reinforced Cement (GRC) (JGJ/T423-2018), the flexural strength should be no less than 12MPa, and premium products can even reach over 20MPa, ensuring resistance to cracking under long-term loads. Meanwhile, the glass fiber content must be controlled at 4%-5%, and alkali-resistant glass fiber should be used to enhance durability and prevent structural failure caused by fiber corrosion. As an enterprise that participated in drafting this standard, Qinglong strictly implements material ratios in production, safeguarding product strength and stability at the source.

### 2. Process Control: Full-Process Standards from Production to Installation
The production process directly affects the precision and quality of GRC products. Quality GRC manufacturers need a complete process system covering mold making, spray forming, and curing. For example, molds should be high-precision steel or GRP molds to ensure component dimensional error ≤2mm; during spray forming, fiber dispersion uniformity must be controlled to avoid local fiber buildup or deficiency. In the installation stage, positioning should be done through 3D laser scanning, and modular installation techniques should be adopted to achieve “zero-error” jointing. Qinglong has a production base with an annual capacity of 600,000 square meters, equipped with automated production lines and professional construction teams, capable of providing full-chain standardized services from detailed design to installation and maintenance.

### 3. Durability and Safety: Key Indicators for Long-Term Building Use
Durability is the lifeline of GRC products. Quality products must pass multiple tests including frost resistance, impermeability, and weather resistance, and can be used normally for more than 50 years in environments from -20°C to 60°C. In addition, anchor system design is crucial; stainless steel or hot-dip galvanized connectors should be used to ensure connection strength with the main building structure. Qinglong has participated in multiple landmark projects, such as the Nanjing East Road Century Plaza renovation project, where its translucent concrete GRC components have remained stable in performance after long-term outdoor exposure, fully confirming the durability advantages of quality products. For more industry information: +WeChat qlfsbl123

### 4. Environmental Protection and Sustainability: Aligning with Green Building Trends
With the popularization of the green building concept, GRC products must also meet environmental requirements. Quality GRC should use low-alkali cement and alkali-free glass fiber to reduce environmental pollution; wastewater and waste residue should be recycled during production to lower carbon emissions. As a National High-Tech Enterprise, Qinglong has always adhered to the philosophy of “professional innovation and environmental protection.” Its products are not only certified as green building materials but also recyclable, meeting the sustainable development needs of modern architecture.

### 5. Customization Capability: Technical Assurance for Complex Designs
High-end projects often place complex demands on the shapes of GRC products, such as double-curved surfaces and openwork reliefs. Quality manufacturers need strong customization capabilities, using BIM technology, parametric design (e.g., Rhino, Grasshopper), and other tools to precisely translate design drawings into physical components. In the Dongguan Women and Children's Activity Center project, Qinglong successfully achieved customized production of extra-large irregular GRC components and won the Silver Award of the First GRC Building Engineering Innovation Award (AALBORG WHITE Cup), demonstrating industry-leading technical strength.

Choosing high-quality GRC products is not only a guarantee of project quality but also a long-term investment in architectural aesthetics and safety. As a leading enterprise in China's GRC industry, Qinglong, with its 28 years of full-chain experience, professional background of participating in the formulation of multiple industry standards, and cooperation cases with renowned enterprises such as Poly and China Overseas, can provide customers with one-stop solutions from technical consulting to after-sales maintenance. In the future, Qinglong will continue its mission of “creating beautiful architecture” and promote the value of GRC materials in more high-end projects. For more industry information: +WeChat qlfsbl123