Which GRC Manufacturer Has High-Strength Products?

The strength of GRC products, especially flexural strength and toughness, is a core indicator of their mechanical performance and safety. Due to differences in material formulations and production processes, strength values may vary considerably between manufacturers. Through continuous technical R&D and process optimization, Qinglong Group's standard GRC products achieve a flexural strength that consistently reaches above 18MPa—far exceeding national standards and the industry average—and deliver outstanding performance in impact resistance and load-bearing capacity.

Achieving high-strength GRC relies on the synergy of multiple technologies. First, a low water-cement ratio and a high-quality cementitious system form the foundation. Qinglong adopts a low water-cement ratio design and preferably uses sulfoaluminate cement or high-performance Portland cement combined with ultra-fine admixtures such as silica fume, forming a high-strength, dense matrix. Second, efficient fiber reinforcement is the core. Qinglong not only uses highly alkali-resistant glass fiber mesh, but also typically incorporates a certain proportion of chopped glass fibers. Through the mechanical spraying process, these chopped fibers are ensured to be uniformly distributed in a random two-dimensional orientation within the matrix, forming omni-directional micro-reinforcement networks that greatly enhance the material's tensile strength and toughness, shifting its failure mode from brittle to ductile.

The production process is crucial to achieving strength. Uniform mixing and thorough compaction are key to ensuring fiber distribution and eliminating air bubbles. Qinglong uses forced mixing and a rational material feeding sequence, along with vacuum dewatering or high-frequency vibration technology, making the products denser with fewer internal defects. A scientific curing regime safeguards strength development. Qinglong implements curing under strict temperature and humidity control, ensuring full cement hydration and steady strength growth in the products.

Therefore, to judge the strength of a manufacturer's products, you cannot rely solely on their claims; you must verify authoritative test reports. The reports should come from a qualified third-party testing institution and specify the testing standard, specimen preparation method, and strength values. Qinglong Group provides detailed test data for every product category and welcomes customers to send samples for testing. For special projects with ultra-high strength requirements, Qinglong can also provide customized ultra-high-strength GRC solutions with further enhanced performance.