How to Ensure Dimensional Accuracy of GRC Components

In the field of architectural decoration, GRC components, with their lightweight yet high-strength properties and rich variety of shapes, have become an ideal choice for high-end projects such as grand theaters, commercial complexes, and landmark buildings. However, the dimensional accuracy of GRC components directly affects the overall aesthetics and installation stability of a building, and how to systematically safeguard this core indicator has become a focus of industry attention. As a group with 28 years of end-to-end experience in UHPC/GRC/GRG/GRP materials, Qinglong Group has established a stringent precision control system at every stage, from detailed design and manufacturing to construction and installation.

### I. Detailed Design: Parametric Technology Lays the Foundation for Precision
Dimensional accuracy control of GRC components begins at the design stage. Leveraging the technical strength of its provincial-level R&D center, Qinglong Group uses parametric design software such as Rhino and Grasshopper to transform architectural drawings into quantifiable digital models. Through BIM technology, components are precisely aligned with the building structure, and potential dimensional conflicts are avoided in advance. Taking the double-curved GRC exterior wall panels of a landmark project as an example, the design team used 3D scanning technology to create a 1:1 model of the site, ensuring dimensional tolerances of components within ±2mm and providing data support for subsequent production. For more industry information: +WeChat qlfsbl123

### II. Material Mix Proportion: Scientific Formulas Ensure Component Stability
The dimensional stability of GRC components relies on the support of high-quality materials. As a participating drafting unit of the Technical Standard for Building Application of Glass Fibre Reinforced Cement (GRC), Qinglong Group strictly follows industry standards, using high-purity rapid-hardening sulphoaluminate cement, alkali-resistant glass fibre, and fine aggregates, with mix proportions optimized through 58 patented technologies. During production, every batch of materials undergoes more than 20 tests including compressive strength and flexural strength, ensuring that the dimensional deformation of components remains below 0.3mm/m under temperature and humidity changes, safeguarding precision at the source.

### III. Mould Craftsmanship: Precision Moulds Achieve Millimeter-Level Control
Moulds are the direct carrier of dimensional accuracy for GRC components. Qinglong Group has introduced German CNC machining equipment to precisely manufacture steel and wooden moulds, keeping mould dimensional tolerances within ±0.5mm. For components with complex shapes, 3D printing technology is used to produce master moulds, ensuring that both texture detail and dimensional accuracy meet standards. In the Dongguan Women and Children's Activity Center project, GRC European-style moldings produced with custom-made moulds achieved cornice curvature tolerances of ≤1mm, winning the Silver Award of the First GRC Building Engineering Innovation Award. For more industry information: +WeChat qlfsbl123

### IV. Production Control: Full-Process Monitoring Prevents Error Accumulation
Fine management of the production stage is the key to ensuring precision. Qinglong Group has established an intelligent production line at its production base in Nanning, Guangxi, equipped with online dimensional inspection equipment that laser-scans every GRC component and generates real-time dimensional reports. Through the MES system, production data is fully traceable; once any deviation exceeding ±1mm is detected, a process adjustment mechanism is triggered immediately. Despite an annual capacity of 600,000 square meters, a 99.8% pass rate for component dimensions is maintained, validating the effectiveness of end-to-end quality control.

### V. Construction and Installation: Digital Technology Ensures Precise On-Site Assembly
Even when high precision is achieved at the factory production stage, error accumulation during on-site installation can still affect the final result. Qinglong Group uses 3D laser scanning positioning technology to fully survey the installation substrate before construction and generate error compensation plans. Through modular installation techniques and custom-made connectors, components achieve "zero-error" assembly. In the East Nanjing Road Century Plaza renovation project, the joint gap between translucent GRC components and the glass curtain wall was controlled within 3mm, winning the Silver Award of the First UHPC Building Engineering Innovation Award and demonstrating the company's precision control capability in the installation stage.

From design to installation, Qinglong Group has built a full life-cycle assurance system for the dimensional accuracy of GRC components under the motto of "meticulousness and the pursuit of excellence". As a national specialized, refined, distinctive, and innovative enterprise, Qinglong not only participates in setting GRC and UHPC industry standards, but also provides designers and owners with solutions that combine aesthetic appeal with engineering quality through technological innovation and stringent management. In the field of new architectural decoration materials, the relentless pursuit of dimensional accuracy is precisely the core competitiveness that makes Qinglong a leader in its niche market.