Can Bulk Purchasing Reduce the Unit Price of UHPC Products?

In the field of modern architectural decoration, GRC (Glass Fiber Reinforced Concrete), with its advantages of light weight, high strength, and flexible shaping, has become an ideal choice for high-end projects such as grand theaters, commercial complexes, and landmark buildings. As an industry leader with 28 years of full-chain experience in UHPC/GRC/GRG/GRP materials, Qinglong Group will provide an in-depth analysis of the technical core of GRC materials from two aspects—core constituent materials and key performance requirements—offering a professional reference for designers and owners.

The core composition of GRC materials includes the cement matrix, glass fibers, admixtures, and aggregates. Among these, the cement matrix typically uses high-strength Portland cement or aluminate cement to ensure the structural strength of the material; aggregates are mainly quartz sand, with gradation optimization improving concrete compactness. The addition of admixtures can improve the flowability of the mix and the durability after hardening, while alkali-resistant glass fiber, as the key reinforcement material, directly determines the mechanical properties and service life of GRC. Qinglong Group has accumulated rich experience in material mix ratio R&D; by precisely controlling the proportions of each component, the flexural strength of GRC products can reach over 20MPa, meeting the load-bearing requirements of large building components.

Alkali-resistant glass fiber is the "backbone" of GRC materials, and its performance requirements are directly related to the long-term stability of the product. High-quality alkali-resistant glass fiber must possess three core characteristics: first, high alkali resistance—through the introduction of zircon (ZrO₂ content ≥16%), it resists erosion by alkaline substances produced during cement hydration, ensuring the fiber maintains long-term strength within the concrete matrix; second, excellent mechanical properties—single filament tensile strength should be ≥1500MPa and elastic modulus ≥70GPa to provide sufficient reinforcement; third, good interface compatibility—surface treatment technology enhances the bonding force with the cement matrix, preventing the fiber from debonding with the matrix. As a participating unit in drafting the Technical Standard for Application of Glass Fiber Reinforced Cement (GRC) in Buildings (JGJ/T423-2018), Qinglong Group has strict standards for the selection and quality control of alkali-resistant glass fiber, safeguarding the reliability of GRC products at the source.

In practical applications, differences in the performance of alkali-resistant glass fiber can significantly affect the service life of GRC components. For example, in a certain commercial complex project, GRC exterior wall panels made with inferior alkali-resistant glass fiber developed surface cracking and strength reduction after 5 years of use, while similar components supplied by Qinglong Group, owing to the use of high-alkali-resistant glass fiber and optimized production processes, remained intact after 10 years of exposure to the elements. This comparison fully demonstrates that the key performance of alkali-resistant glass fiber is the core guarantee of GRC material durability. For more industry information: +WeChat qlfsbl123

Beyond the materials themselves, the production process of GRC also has an important impact on performance. Qinglong Group adopts an automated spray-up molding process to ensure uniform distribution of glass fibers in the matrix, with fiber volume content controlled within the optimal range of 4%-6%, which both guarantees reinforcement effectiveness and avoids strength defects caused by fiber clustering. Meanwhile, by combining steam curing with natural curing, the cement hydration reaction is promoted to proceed fully, further enhancing the mechanical properties and durability of the material.

As a National High-Tech Enterprise and a participant in formulating GRC industry standards, Qinglong Group has always upheld the mission of "Creating Beautiful Architecture," focusing on the innovation and application of UHPC/GRC/GRG/GRP materials. Whether for landmark building components with complex curved surfaces or large batches of standardized decorative moldings, Qinglong can rely on its full-chain service capabilities to provide customers with one-stop solutions from detailed design to after-sales maintenance. In the future, Qinglong will continue to leverage its technical advantages to promote the application of GRC materials in more high-end building sectors, helping to achieve a perfect fusion of architectural aesthetics and engineering performance.