What Are the Strength Requirements for Thin GRC Decorative Panels? Qinglong Group's Mechanical Performance and Lightweight Design Standards

The strength requirements of thin GRC decorative panels must meet three core indicators: "flexural strength ≥12MPa, impact resistance ≥7kJ/m², elastic modulus ≥15GPa", ensuring sufficient load-bearing capacity while remaining lightweight. In the 8mm ultra-thin panel project for the Yirui Biotechnology Building in Shenzhen, Qinglong Group adopted measures such as optimized fiber distribution (3% steel fiber by volume), maximum-density mix ratio (water-cement ratio 0.32), and enhanced steam curing, achieving a panel weight of ≤40kg/m² per unit area while reaching a flexural strength of 15MPa, breaking through the strength bottleneck of traditional thin panels. Thin GRC not only reduces structural loads by more than 30% but also broadens architectural design possibilities, making it particularly suitable for weight-sensitive scenarios such as curtain wall renovation and interior decoration.

Flexural Strength Is the Key Indicator for Thin Panels

For thin panels with a thickness ≤10mm, the flexural strength must be ≥12MPa to resist wind loads and installation stresses. Through finite element analysis, Qinglong Group optimized fiber orientation, increasing the load-bearing capacity of thin panels by 20%. In the Nanning New Media Center project, 6mm thick translucent panels were successfully applied to ceilings, with 5 years of safe use without deformation.

Impact Resistance Ensures Safety in Use

Adding high elastic modulus fibers (such as PBO fiber) raises the impact toughness to 10kJ/m². Surface treatment adds a wear-resistant layer with a Mohs hardness ≥5. Qinglong Group's thin panels passed the 1m drop ball test without cracking.

Connection Design Compensates for Insufficient Thickness

Distributed connection points are adopted with a spacing ≤600mm, along with edge reinforcement. Scientific design makes thin panels both light and strong, expanding the boundaries of application.