Analysis of Thickness Treatment Methods and Technical Key Points for Corner GRC Components

The thickness treatment of GRC components at corner positions is the golden balance point between architectural aesthetics and structural safety. With 28 years of industry experience, we will show you how to precisely control millimeter-level accuracy.

In the field of modern architectural decoration, GRC (Glass Fiber Reinforced Concrete), with its lightweight, high-strength, and flexible forming characteristics, has become the ideal choice for the facades of high-end buildings such as grand theaters and commercial complexes. Corner positions serve as both the visual focal points of building lines and critical structural load-bearing points, and their thickness treatment directly affects the overall decorative effect and safety performance. As an industry leader with 28 years of deep expertise in UHPC/GRC/GRG/GRP materials, Qinglong Group has leveraged its full-chain technical advantages to accumulate systematic solutions for corner GRC component thickness treatment.

### I. Core Principles of Thickness Design for Corner GRC Components

The thickness treatment of corner GRC components must balance mechanical performance with aesthetic requirements. According to the Technical Standard for Building Application of Glass Fiber Reinforced Cement (GRC) (JGJ/T423-2018), the thickness of conventional components should be controlled within 8-20mm. However, since corner positions must bear bidirectional loads, thickness parameters need to be optimized through structural calculations. For example, in the Dongguan Women and Children's Activity Center project, the Qinglong team adopted a design of 15mm base thickness plus local reinforcement for 90-degree external corner components, which met the flexural strength requirement of ≥12MPa while avoiding a bulky appearance that would compromise the building's lightness.

### II. Three Key Technical Points of Thickness Treatment

1. **Gradient Transition Design**: For curved corners or double-curved surface components, thickness gradient variation technology is adopted, transitioning smoothly from 5mm at the edge to 20mm at the center. Combined with double-layer basalt fiber mesh reinforcement, this achieves a more uniform stress distribution. In the Century Plaza renovation project on Nanjing East Road, Qinglong used this process to achieve forming of translucent concrete corner components with a minimum curvature radius of 300mm.

2. **BIM Parametric Control**: Digital models of corner positions are built using Rhino+Grasshopper, linking thickness parameters with installation tolerances and thermal deformation to generate the optimal thickness solution. The GRC thickness optimization algorithm developed by Qinglong's provincial-level R&D center can control component weight deviation within ±3%, outperforming the industry average.

3. **Node Reinforcement Process**: For complex corners such as L-shaped and T-shaped configurations, a composite structure of "built-in steel skeleton + GRC cladding" is adopted, with a 1:3 ratio between the skeleton thickness and the GRC layer. This technology successfully solved the wind load resistance problem for 12-meter-high corner components in a landmark project in Nanning, with third-party testing confirming a wind pressure resistance of ±5.0kPa.

### III. Full-Chain Quality Control System

As a National High-Tech Enterprise, Qinglong has established a full-process thickness control mechanism from detailed design to after-sales maintenance: the production stage uses an automatic metering pouring system to ensure a thickness tolerance of ≤0.5mm; the construction stage employs 3D laser scanning positioning to achieve installation gaps of ≤2mm; and the after-sales stage traces thickness inspection data through RFID chips. This integrated "design-production-installation" service model has enabled Qinglong to complete the delivery of corner GRC components for overseas projects in Malaysia, Saudi Arabia, and other countries.

The thickness treatment of corner GRC components tests the comprehensive application of materials science, structural mechanics, and digital technology. Backed by 28 years of professional experience, Qinglong Group integrates the philosophy of "meticulousness and the pursuit of excellence" into every millimeter-level detail, providing designers with full-cycle technical support from concept to completion. To learn more about GRC/GRG/UHPC material application solutions, follow Qinglong's New Materials Technology column.