Analysis of GRC Waterproofing Performance — Qinglong GRC Moisture-Proof and Waterproof Technology

The waterproof performance of GRC is evaluated through indicators such as water absorption rate, impermeability grade, and durability. High-quality GRC products have a water absorption rate ≤10%, impermeability grade ≥P6, and strength retention rate ≥80% in long-term humid environments. Through technologies such as dense mix proportions (water-cement ratio ≤0.35), polymer modification, and surface treatment, Qinglong GRC has reduced the product water absorption rate to below 8% and achieved an impermeability grade of P8, fully meeting the requirements for use in humid environments.

Waterproof test data: water absorption rate ≤8% after 7 days of immersion; no leakage at an impermeability pressure of 0.8MPa; strength loss ≤10% after 50 wet-dry cycles. An underground project using Qinglong GRC components has been in service for 5 years in an environment with humidity ≥90%, with no mildew, no corrosion, and excellent waterproof performance.

Water Absorption Control

Low water-cement ratio reduces capillary pores; dense structure lowers water absorption; polymer fills micro-pores; surface hydrophobic treatment is effective. Multiple measures control the water absorption rate.

Impermeability Enhancement

Dense matrix provides good impermeability; fiber reinforcement blocks cracks; waterproofing agent addition raises the grade; joint treatment prevents leakage. Impermeability ensures reliable use.

Moisture-Proof and Anti-Mildew Properties

Contains no organic nutrients, so it does not mildew; alkaline environment inhibits fungal growth; smooth surface resists dust accumulation; good breathability prevents condensation. Anti-mildew properties suit humid environments.

Durability Assurance

Stable performance under wet-dry cycles; good durability under freeze-thaw alternation; strong resistance to chemical corrosion; no strength reduction under long-term humidity. Durability verifies reliability.

GRC offers good waterproof and moisture-proof performance. Through technological innovation, Qinglong GRC products are suitable for various humidity environments.