What Are the Product Testing Standards of GRC Manufacturers? Comprehensive Analysis and Key Points

Quality is the lifeline of architecture, and testing standards are the guardian of quality. In the GRC (Glass Fiber Reinforced Concrete) industry, scientifically sound and comprehensive product testing standards are not only a reflection of a company's technical strength, but also the core cornerstone for safeguarding building safety and aesthetic value. As an industry leader with 28 years of deep expertise in UHPC/GRC/GRG/GRP materials, Qinglong Group will comprehensively analyze the product testing standards of GRC manufacturers from a professional perspective, providing an authoritative reference for designers, owners, and industry peers.

Core Dimensions of GRC Product Testing Standards: Full-Process Control from Materials to Performance

GRC product testing standards span the entire chain from raw material selection and production processes to finished product performance. The first step is raw material testing. As the "backbone" of GRC, glass fiber must meet the requirements of the Technical Standard for Building Application of Glass Fiber Reinforced Cement (GRC) (JGJ/T423-2018) in terms of length, diameter, tensile strength, and alkali resistance, ensuring that every fiber performs its reinforcing role. Cement-based materials must be tested for compressive strength, flexural strength, and durability. At this stage, Qinglong Group applies internal control indicators exceeding industry standards, such as selecting Portland cement of Grade 42.5 or above and conducting 28-day strength tests to ensure substrate stability.

Quality control during production is equally critical. Process parameters of GRC components, such as thickness deviation, surface flatness, and embedded part position deviation, must be precisely measured using 3D scanning technology, with errors controlled within ±2mm. Relying on automated production lines developed by its provincial engineering technology center, Qinglong Group has achieved full-process digital monitoring from batching and mixing to molding and curing, ensuring the consistency of every product.

Analysis of Key Performance Indicators: Dual Assurance of Safety and Durability

Physical and mechanical properties are the core of GRC product testing, mainly including flexural strength, compressive strength, elastic modulus, and impact resistance. According to industry standards, the flexural strength of premium GRC components should be no less than 12MPa. By optimizing fiber content and distribution processes, Qinglong Group has raised product flexural strength to over 20MPa, far exceeding national standard requirements. Weather resistance testing simulates extreme environmental conditions through accelerated aging tests such as freeze-thaw cycles and wet-dry alternation, ensuring stable product performance within a temperature range of -30℃ to 70℃ and a service life of over 50 years.

Fire and environmental performance are basic requirements that modern buildings place on GRC materials. Tested by national authoritative institutions, Qinglong GRC products achieve Class A non-combustible burning performance and contain no harmful substances such as formaldehyde or benzene, complying with green building evaluation standards. In addition, targeted testing is required for different application scenarios: for example, exterior wall cladding panels must be tested for wind pressure resistance, and landscape components must be tested for frost resistance and wear resistance, ensuring that products are suited to specific project requirements.

Deep Integration of Industry Standards and Corporate Strength: Qinglong's Testing System Advantages

As an outstanding contributor to the revision of the industry standard Glass Fiber Reinforced Cement (GRC) Decorative Products (JC/T940-2022), Qinglong Group not only strictly implements national standards but has also established an internal control system exceeding national standards. The company is equipped with an advanced materials testing laboratory capable of independently conducting full testing from raw materials to finished products, and has introduced RFID chip traceability technology, making the quality of every product traceable. Twenty-eight years of industry experience have given Qinglong a deep understanding that testing standards are not constraints but a driving force for technological innovation. By participating in the formulation of multiple industry standards, including the General Technical Conditions for Ultra-High Performance Concrete (UHPC) Non-Load-Bearing Components, Qinglong has transformed practical experience into shared wealth for the industry, leading the GRC industry toward higher-quality development.

Choosing GRC products is essentially choosing a commitment to safety and quality assurance. With an attitude of "meticulous attention to detail and constant refinement", Qinglong Group integrates testing standards into every link of production, providing GRC solutions that combine aesthetic value with structural safety for landmark buildings, commercial complexes, cultural venues, and other projects. In the future, as green buildings and prefabricated buildings continue to develop, GRC testing standards will keep upgrading, and Qinglong will continue to set a quality benchmark for the industry through technological innovation and rigorous quality control, helping the corporate mission of "Creating Beautiful Architecture" take root.