Which GRC Manufacturer Offers High-Strength Products? Mechanical Performance and Qinglong Group's Reinforcement Technology Breakthrough

GRC product strength is a key indicator of a manufacturer's technical level. Quality products should have flexural strength ≥15MPa, compressive strength ≥40MPa, and fracture energy ≥15kJ/m². Through 28 years of technical R&D, Qinglong Group has achieved major breakthroughs in material reinforcement: through oriented fiber distribution technology (uniformity ≥95%), maximum dense packing theory (porosity ≤5%), and nano-modification technology, GRC flexural strength has been raised to 18-25MPa, reaching advanced international levels. In the roofing project of the Hainan International Convention and Exhibition Center, our GRC panels achieved a maximum deflection ≤L/250 under typhoon loads, far exceeding design standards. High strength stems from scientific material design and precise process control.

Fiber Reinforcement Technology Is Key

Fiber type, length, and dosage directly affect material strength. Qinglong Group uses hybrid fiber technology (steel fiber + polymer fiber) with a volume dosage of 3-5%; through robotic directional spraying, fibers are aligned in an orderly manner along the principal stress direction. In the Nanning Wuxiang China Resources MixC project, this technology improved the impact resistance of panels by 50%.

Matrix Optimization Enhances Intrinsic Strength

By optimizing particle gradation to achieve maximum dense packing, defects are reduced. Adding active admixtures such as silica fume (20-30%) and mineral powder improves the interfacial structure. The matrix strength of Qinglong GRC is 30% higher than ordinary formulations, laying the foundation for high strength.

Process Control Ensures Strength Achievement

The vacuum dewatering process (vacuum degree -0.08MPa) reduces air bubbles; steam curing (60℃×24h) promotes strength development. Through whole-process monitoring, Qinglong Group ensures consistent strength in every panel. High-strength products have expanded the application boundaries of GRC.