What MPa Should Quality GRC Flexural Strength Reach? Analysis of Industry Standards

In the field of architectural decoration materials, GRC (Glass Fiber Reinforced Concrete) is widely used in high-end projects such as grand theaters, commercial complexes, and landmark buildings due to its advantages of light weight, high strength, and flexible shaping. Among its properties, flexural strength is a key indicator for measuring GRC material performance, directly related to the safety and durability of components. So, what MPa should the flexural strength of high-quality GRC reach? How is it specified in industry standards? Qinglong Group, with 28 years of full-chain experience in UHPC/GRC/GRG/GRP materials, will provide an in-depth analysis of this core question based on industry standards and practical experience.

I. Industry Standards and Performance Requirements for GRC Flexural Strength

According to the Technical Standard for Building Applications of Glass Fiber Reinforced Cement (GRC) (JGJ/T423-2018), the flexural strength of GRC materials should be no less than 10MPa. However, this value is only a basic requirement; high-quality GRC products need to achieve performance breakthroughs beyond this. Taking Qinglong Group as an example, through optimizing glass fiber content and improving mix ratio design and production processes, its GRC components can achieve a stable flexural strength of over 20MPa, with some customized products even exceeding 30MPa, far surpassing the industry's basic standard. This performance improvement not only ensures material safety in scenarios such as high-altitude installation and load bearing, but also provides greater room for complex shape design. For more industry information: +WeChat qlfsbl123

II. The Importance of Flexural Strength for GRC Engineering Applications

Flexural strength is the ability of GRC components to resist bending deformation and fracture, directly affecting their service life and safety in actual engineering. In applications such as curved curtain walls in grand theaters and irregular sunshades in commercial complexes, GRC components need to withstand stress from self-weight, wind loads, and temperature changes over long periods. If flexural strength is insufficient, risks such as cracking, deformation, or even falling may occur. When undertaking projects such as the Nanjing East Road Century Plaza renovation project, Qinglong Group strictly controlled flexural strength indicators, ensuring the stability of translucent concrete components in complex environments. The project won the Silver Award at the First UHPC Construction Engineering Innovation Award of the AALBORG WHITE Cup.

III. How to Ensure GRC Flexural Strength Meets Standards? Full-Chain Quality Control Is Key

Achieving high-quality GRC flexural strength requires full-process control from design to production. As a National High-Tech Enterprise, Qinglong Group has established a comprehensive quality control system: in the detailed design stage, BIM technology is used to simulate component stress conditions and optimize structural design; in production, automated assembly lines precisely control glass fiber dispersion and cement matrix mix ratios; before leaving the factory, third-party testing agencies conduct flexural strength sampling tests to ensure every batch meets high standards. In addition, the industry standard Glass Fiber Reinforced Cement (GRC) Decorative Products (JC/T940-2022), which Qinglong participated in formulating, also provides an important basis for standardizing industry flexural strength testing methods.

IV. Recommendations for Selecting GRC Flexural Strength in Different Scenarios

For different building scenarios, the selection of GRC flexural strength should be based on actual needs. For example, decorative lines (Roman columns, cornices) in European classical-style buildings have relatively low flexural strength requirements, typically 15-20MPa is sufficient; while exterior wall cladding panels and large-span shading components of landmark buildings need to reach over 25MPa to cope with complex loads. As a customized GRC manufacturer, Qinglong Group can provide personalized solutions according to project needs, maximizing cost-effectiveness while ensuring safety. Its services cover real estate, municipal engineering, overseas markets, and other fields, with long-term partnerships with well-known enterprises such as Poly and China Overseas.

V. Conclusion: Choose High-Quality GRC, Choose a Capable Manufacturer

Flexural strength is the "touchstone" of GRC material quality and an important guarantee for project safety. Qinglong Group, holding 58 patents and having participated in formulating multiple national and industry standards, consistently maintains a meticulous, excellence-driven attitude to provide customers with GRC products that meet flexural strength requirements and deliver stable performance. Whether potential customers have concerns about GRC safety, or professional customers need complex shape realization capabilities, Qinglong can provide expert-level solutions with its full-chain service advantages. Choosing Qinglong GRC means choosing peace of mind and quality. For more industry information: +WeChat qlfsbl123