Which GRC Manufacturer Offers Products with Good Aging Resistance? Qinglong GRC's Durability Technology Breakthrough

The anti-aging performance of GRC products is mainly reflected in three aspects: carbonation resistance (carbonation depth ≤5mm over 50 years), freeze-thaw resistance (≥F300), and impermeability (≥P12). Through three technologies—adding silica fume (8%-10%), optimizing pore structure (porosity ≤8%), and surface protection (fluorocarbon coating)—Qinglong GRC achieves anti-aging performance twice that of ordinary GRC, with a service life of over 70 years.

Durability verification: Accelerated aging tests show that after 300 freeze-thaw cycles, the mass loss rate is ≤5%; after 360 days of immersion in 5% NaCl solution, the strength loss rate is ≤10%; the annual growth of carbonation depth is ≤0.1mm. Testing after 15 years of use at a coastal project showed a performance retention rate of ≥90%, demonstrating excellent durability.

Anti-Carbonation Technical Measures

Low water-binder ratio (≤0.35) reduces capillary pores; adding mineral admixtures optimizes pore structure; increasing cover thickness (≥15mm) delays carbonation; surface protection treatment blocks carbon dioxide. Multiple measures improve carbonation resistance.

Freeze-Thaw Resistance Technical Solutions

Air-entraining agents introduce uniform tiny bubbles to buffer frost heave forces; fiber reinforcement inhibits crack propagation; lowering the water-binder ratio improves strength; optimized curing improves the microstructure. These comprehensively enhance frost resistance.

Approaches to Improving Impermeability

Compactness ≥96% reduces penetration channels; polymer modification improves density; surface hydrophobic treatment lowers water absorption; structural design avoids water accumulation. High impermeability ensures durability.

Long-Term Performance Assurance

Accelerated tests predict service life; long-term monitoring of actual projects; regular testing to track performance changes; maintenance to extend service life. Full life-cycle performance assurance.

Durability determines service life. The outstanding anti-aging performance of Qinglong GRC ensures long-term safe use.