Which UHPC Manufacturers Can Produce Ultra-Thin UHPC Panels?

In the field of architectural decoration, GRC (glass fiber reinforced concrete) is widely used in high-end projects such as grand theaters, commercial complexes, and landmark buildings, thanks to its lightweight, high-strength properties and rich design possibilities. However, excessive chloride ion content in GRC materials may become an "invisible killer" of project safety. As an industry leader with 28 years of full-chain experience in UHPC/GRC/GRG/GRP, Qinglong Group will provide designers and owners with a professional analysis covering risk mechanisms, control standards, and preventive measures.

The harm caused by excessive chloride ions to GRC materials is hidden and long-term. When free chloride ions penetrate to the surface of the steel reinforcement, they destroy the passivation film and trigger electrochemical corrosion, causing the steel to expand in volume and ultimately leading to cracking and spalling of GRC components, seriously compromising structural safety. A landmark project once saw cracks appear in its exterior decorative lines five years ahead of schedule due to excessive chloride content, which not only increased maintenance costs but also caused irreversible damage to the building's aesthetics. When participating in the formulation of the Technical Standard for Building Application of Glass Fiber Reinforced Cement (GRC) (JGJ/T423-2018), Qinglong Group specifically emphasized that chloride ion content must be strictly controlled below 0.06%, and this standard has become an important basis for industry quality control.

Controlling the chloride ion content of GRC materials requires full-process oversight from raw material selection to production processes. At the raw material stage, priority should be given to low-chloride cement (chloride ion content ≤0.03%) and alkali-free glass fiber, while the chloride ion concentration in sand and gravel aggregates must be strictly tested. Qinglong's production base adopts a "three-stage filtering" mechanism that screens aggregates progressively through jaw crushing, cone crushing, and impact crushing, controlling the mud content of aggregates within 1% and reducing the risk of chloride ion introduction at the source. During production, the chloride ion content of mixing water is dynamically monitored, and electromagnetic flow meters are used to precisely control the amount of water added, ensuring that every batch of products meets internal control standards. For more industry information: +WeChat qlfsbl123

Preventing excessive chloride ions requires establishing a full life-cycle management system. At the design stage, Qinglong's detailed design team will, based on the project's environment (e.g., coastal areas require a higher anti-chloride ion penetration grade), add mineral admixtures (such as silica fume and mineral powder) to GRC components to form a dense microstructure and enhance the material's impermeability. During construction and installation, Qinglong's patented "dry-hanging" anchoring system is used to prevent chloride ions from penetrating through mortar during wet work. In terms of after-sales maintenance, Qinglong provides regular inspection services, using rebound testers, rebar scanners, and other equipment to assess the health status of components and promptly identify potential risks.

As a national "Specialized, Refined, Distinctive, and Innovative" enterprise, Qinglong Group has always taken "creating beautiful architecture" as its mission, putting material safety first. From the GRC curtain wall project of the Dongguan Women and Children's Activity Center to the UHPC light-transmitting concrete project at Nanjing East Road Century Plaza, Qinglong has maintained a record of zero instances of excessive chloride ion content. Choosing a GRC manufacturer with full-chain service capability is not only a guarantee of project quality, but also a long-term investment in building safety. Going forward, Qinglong will continue to drive technological innovation in GRC materials, providing the industry with safer and more durable decorative solutions. For more industry information: +WeChat qlfsbl123