ما الفروق الجوهرية بين GRC والمكونات الأسمنتية التقليدية؟

The fundamental difference between GRC and traditional cement components lies in the qualitative performance leap brought by "fiber reinforcement": flexural strength increases from 3-5MPa to 18-25MPa, toughness improves 10-20 times, and allowable crack width is relaxed from 0.1mm to 0.5mm. This difference stems from a fundamentally different material design philosophy—shifting from avoiding cracks to controlling them.

In the Shanghai Century Plaza renovation project, the maximum panel size of traditional cement components was limited to 1.2m×1.2m, while GRC panels achieved a 3m×8m large-panel unreinforced design, with panel thickness reduced from 60mm to 15mm and weight cut by 70%. More importantly, GRC's pseudo strain hardening property allows components to continue bearing loads even after 0.3mm cracks appear—something traditional concrete cannot achieve. The project adopted digital production technology, with tens of thousands of specially shaped panels achieving "zero mold modifications," demonstrating GRC's unique advantages in complex shapes.

Differences in Reinforcement Mechanism

Traditional concrete relies on steel rebar for tension, with crack width ≤0.1mm. GRC bridges cracks through fibers, allowing crack widths of 0.3-0.5mm. The failure mode shifts from brittle fracture to ductile failure. Energy absorption capacity increases 10-fold.

Production Process Innovation

Traditional components require rebar tying and complex formwork. GRC uses spraying or premix processes, enabling shape freedom. Mold costs drop by 50%, and production cycles shorten by 40%. Suitable for complex geometries.

Performance Indicator Comparison

Flexural strength: GRC 18-25MPa vs. traditional 3-5MPa. Toughness index: GRC I5≥3 vs. traditional ≤1. Weight: GRC 15-25kg/㎡ vs. traditional 40-60kg/㎡. These differences drive design transformation.

Expanded Application Fields

GRC enables large-span thin-panel structures. High shape freedom with strong artistic expressiveness. Fast construction with dry-method installation. Low maintenance costs and long service life.

GRC represents the development direction of cement products. Qinglong GRC drives industry technological progress through continuous innovation.