How to Ensure the Dimensional Accuracy of GRC Components

In the field of architectural decoration, GRC components are widely used in high-end projects such as grand theaters, commercial complexes, and landmark buildings thanks to their lightweight, high strength, and rich styling. However, the dimensional accuracy of GRC components directly affects installation quality and the overall aesthetics of a building, making it a core concern for designers, owners, and contractors. As an industry leader with 28 years of full-chain experience in UHPC/GRC/GRG/GRP materials, Qinglong Group has developed a systematic solution for ensuring the dimensional accuracy of GRC components, maintaining full control from design development through production and installation to provide reliable assurance for projects.

Design Development Stage: Parametric Technology Lays the Foundation for Accuracy

Dimensional accuracy control of GRC components starts at the design source. Relying on the technical strength of its provincial-level R&D center and engineering technology center, Qinglong Group uses BIM technology and parametric design software (such as Rhino and Grasshopper) to model components, transforming designers' creative ideas into quantifiable digital models. Three-dimensional models enable precise calculation of component geometry and connection nodes, avoiding errors that traditional 2D drawings may introduce. Meanwhile, for complex curved surfaces and irregular components, 3D scanning technology is used to verify design models, ensuring that component dimensions match the building structure. Take the Nanjing East Road Century Plaza renovation project as an example: the Qinglong team achieved millimeter-level precision control of light-transmitting concrete components through parametric design, ensuring seamless jointing during installation. For more industry information: +WeChat qlfsbl123

Material Mix Optimization: Controlling Component Stability at the Source

The dimensional accuracy of GRC components is closely related to material performance. As a participating drafting unit of the Technical Standard for Building Application of Glass Fiber Reinforced Cement (GRC) (JGJ/T423-2018), Qinglong Group strictly follows industry standards, optimizing material shrinkage and strength by adjusting the mix ratios of cement, glass fiber, and admixtures. For example, low-alkali cement and crack-resistant fibers are used in production to reduce component deformation during curing; precise control of the water-cement ratio ensures material fluidity and stability, preventing dimensional deviations caused by uneven material shrinkage. In addition, Qinglong has established a comprehensive material testing system, with every batch of raw materials tested for compressive strength, flexural strength, and other indicators, safeguarding the dimensional stability of components at the source.

Mold Manufacturing: High-Precision Molds Ensure Forming Accuracy

Molds are the key carriers for forming GRC components, and their precision directly determines the dimensional errors of components. Qinglong Group uses CNC machining technology to produce steel molds or GRP molds, ensuring that mold flatness and perpendicularity errors are controlled within ±0.5mm. For repeatedly used molds, a regular calibration mechanism is established, with 3D laser scanning used to detect mold wear so repairs or replacements can be made in a timely manner. In the Dongguan Women and Children's Activity Center project, to achieve complex European classical line styling, Qinglong customized high-precision steel molds, keeping the dimensional errors of Roman columns, cornice lines, and other components within ±1mm, perfectly reproducing the design details.

Production Process Control: Intelligent Equipment Enhances Manufacturing Precision

In production, Qinglong has introduced automated production lines and intelligent inspection equipment to achieve precise control of component manufacturing. Automatic material distribution machines lay materials evenly to ensure consistent component thickness; vibrating tables eliminate air bubbles and improve material compactness; constant temperature and humidity curing kilns control the curing environment, preventing component deformation caused by temperature and humidity fluctuations. Quality inspectors are assigned to every process, using vernier calipers, laser diameter gauges, and other tools to measure component dimensions in real time, with non-conforming products immediately reworked. In addition, Qinglong has innovatively embedded RFID chips in components to establish a quality traceability system, enabling full-process data monitoring from raw materials to finished products. For more industry information: +WeChat qlfsbl123

Construction and Installation Stage: 3D Positioning Technology Ensures On-Site Precision

Even when factory-produced components meet precision standards, error accumulation during on-site installation can still affect the final result. Qinglong Group holds a Grade II professional contracting qualification for building curtain wall engineering. Its construction team uses 3D laser scanning technology to measure the installation substrate, generating point cloud data to compare with design models so that structural deviations can be identified and adjusted in advance. During installation, specialized fixtures are used to secure components, and total stations monitor installation positions in real time, ensuring that component axis and elevation errors meet design requirements. For large-scale projects, modular installation methods are adopted to reduce on-site jointing and improve overall installation precision.

As a National High-Tech Enterprise and an important participant in establishing GRC industry standards, Qinglong Group has always applied an attitude of "meticulous attention to detail and constant pursuit of excellence," running dimensional accuracy control through the entire life cycle of GRC components. From digital modeling in design development, to intelligent control in manufacturing, to precise positioning in construction and installation, Qinglong draws on 28 years of technical expertise and full-chain service capabilities to provide reliable support for designers in realizing their creative visions and to deliver high-quality construction projects for owners. Going forward, Qinglong will continue to focus on the innovative R&D of UHPC/GRC/GRG/GRP materials, committed to becoming an outstanding world-leading enterprise in architectural decoration materials manufacturing.