What Are the Characteristics of Lightweight GRC Molding Material Mix Ratios? Lightweight High-Strength Formulation Design and Performance Optimization Strategies

The material mix design of lightweight GRC shaping takes achieving lightweight (bulk density 1.6-1.8g/cm³) and high strength (flexural strength ≥12MPa) as its core objective, realized through aggregate lightweighting, fiber optimization, and pore control technologies. Qinglong Group uses lightweight aggregates such as shale ceramsite (particle size 0.5-1mm) and cenospheres to partially replace quartz sand, and incorporates polymer emulsion to improve toughness, reducing the weight of lightweight GRC by 30% while maintaining performance, expanding GRC applications in large-span and high-rise buildings.

Reducing bulk density is key in mix design. Lightweight aggregates account for 30%-40%, with optimized gradation reducing voids. Fiber reinforcement ensures strength, with alkali-resistant glass fiber at a volume content of 2%-3%. Polymer addition improves bonding. Qinglong Group determines the optimal mix through testing, delivering outstanding lightweight GRC performance. Production processes are adjusted, with low-pressure spraying used to avoid aggregate damage. Lightweight GRC opens up possibilities for architectural innovation.