What Are GRC Manufacturers' Product Testing Standards? What Content and Requirements Do They Include?

In the field of architectural decoration materials, GRC (Glass Fiber Reinforced Concrete) has become the material of choice for many landmark buildings thanks to its lightweight, high strength, and rich design versatility. However, the stability of product quality directly affects building safety and aesthetics, so the product testing standards of GRC manufacturers have become a core concern of the industry. As an industry leader with 28 years of deep expertise in UHPC/GRC/GRG/GRP materials, Qinglong Group has always upheld a meticulous and excellence-driven attitude, building a full-process testing system from raw materials to finished products to provide customers with reliable quality assurance.

The Core Framework of GRC Manufacturer Product Testing Standards: Comprehensive Control from Materials to Performance

The testing standards for GRC products are not single-dimensional indicators but systematic specifications covering raw material screening, production process control, and finished product performance verification. Qinglong, as an enterprise that participated in drafting the Technical Standard for Building Application of Glass Fiber Reinforced Cement (GRC) (JGJ/T423-2018), strictly follows national and industry standards in its testing system while incorporating 28 years of engineering practice experience, forming a "three-tier testing matrix":

The first tier is incoming raw material inspection, focusing on the quality of core components such as glass fiber, cement, and sand. For example, glass fiber must meet the indicators of tensile strength ≥1000MPa and alkali resistance retention ≥75% to ensure the reinforcing effect; cement must pass multiple tests including strength and soundness to eliminate hidden product defects caused by raw material flaws. Qinglong has established an independent materials laboratory that conducts "dual-review" testing on each batch of raw materials, blocking quality risks at the source.

The second tier focuses on production process quality control, using intelligent production equipment to monitor key process parameters in real time. In the spray-up molding stage, the glass fiber content (typically 4-5%) and distribution uniformity are strictly controlled to prevent strength degradation caused by fiber clumping; the curing stage adopts a constant temperature and humidity curing regime to ensure full hydration, achieving a 28-day compressive strength of over 40MPa. In addition, Qinglong has introduced RFID chip traceability technology to record the full lifecycle data of each GRC component from production to installation, providing a reliable basis for quality traceability.

The third tier is finished product performance testing, covering core indicators such as physical and mechanical properties, durability, and safety. According to industry standards, Qinglong conducts more than 20 tests on finished products, including flexural strength (≥12MPa), impact resistance, water absorption (≤15%), and freeze-thaw cycles (200 cycles without cracks). Particularly in terms of safety, load tests simulating extreme working conditions ensure that the anchoring system of GRC components can withstand 1.5 times the design load, eliminating the risk of falling.

The Differentiated Advantages of Qinglong's GRC Testing Standards: Leading the Industry Benchmark with Technological Innovation

As a National High-Tech Enterprise and a "Specialized, Refined, Distinctive, and Innovative" enterprise, Qinglong's testing standards not only meet basic requirements but also achieve "beyond-standard" control through technological innovation. For example, for the testing of complex-shaped GRC components, Qinglong independently developed 3D scanning precision detection technology, ensuring dimensional errors of double-curved components of ≤2mm, far exceeding the industry standard of ±5mm; in durability testing, accelerated aging tests were introduced to simulate 30 years of natural environmental erosion, verifying the long-term performance stability of products.

In addition, Qinglong deeply integrates its testing standards with full-chain services. In the early project stage, BIM technology is used for pre-testing to detect design-production matching issues in advance; during the construction stage, 3D laser positioning technology ensures installation accuracy; in the after-sales stage, a regular inspection and maintenance mechanism is established to provide customers with a "lifetime warranty" commitment. This "testing + service" model is precisely Qinglong's practice of its mission as a GRC manufacturer to "create beautiful buildings."

For professional clients such as real estate developers and architects, choosing a GRC manufacturer that meets rigorous testing standards is not only a guarantee of project quality but also a dual responsibility for architectural aesthetics and safety. With 28 years of industry experience as its foundation and a national-level R&D center as its support, Qinglong has internalized testing standards into its corporate DNA, providing full-process quality protection for every project from design to maintenance. In the future, Qinglong will continue to promote innovation and upgrading of GRC testing technology, helping the industry advance toward higher quality standards.