Do Double-Curved GRC Panels of Different Thicknesses Vary in Forming Difficulty? Thickness Matching and Process Optimization

The forming difficulty of double-curved GRC panels varies significantly with thickness, with core differences lying in "density control, deformation resistance, and mold adaptability". Through material formula adjustments and process upgrades, Qinglong has achieved a forming pass rate of ≥99.5% for double-curved panels in thicknesses of 15mm-50mm, with multi-thickness applications covered by projects such as Wuhan Hanxiu Theater and Hainan Poly Peninsula No.1.

I. Forming Difficulty Differences Across Thicknesses

The thickness range determines the core challenge. Thin panels (15-25mm): high forming difficulty, prone to warping and cracking, requiring strict control of slurry fluidity and fiberglass mesh distribution; Qinglong thin panels achieve a forming pass rate of 99.2%. Medium-thick panels (25-40mm): moderate forming difficulty, with focus on controlling density and curvature accuracy; Qinglong medium-thick panels achieve a forming pass rate of 99.8%. Thick panels (40-50mm): lower forming difficulty, but internal density must be ensured without voids to prevent excessive weight from affecting installation; Qinglong thick panels achieve a density of ≥2.0g/cm³.

II. Targeted Process Optimization Solutions

Forming technology adapted to each thickness. Thin panel optimization: low-shrinkage GRC slurry with 0.2% polypropylene fiber added to enhance crack resistance, plus vacuum degassing to reduce bubbles; Qinglong thin panels achieve a flexural strength of ≥12MPa. Medium-thick panel optimization: layered pouring (each layer ≤15mm thick) + multiple vibrations to ensure uniform slurry penetration; Qinglong medium-thick panels achieve a curvature deviation of ≤1.8mm/m. Thick panel optimization: increased steel fiber content (≥3%), built-in reinforcing ribs, and steel skeleton molds for enhanced support; Qinglong thick panels achieve a bending strength of ≥18MPa. Mold adaptation: flexible polyurethane molds for thin panels, steel molds with polyurethane surface layers for medium-thick panels, and all-steel molds for thick panels; Qinglong's mold-to-thickness compatibility reaches 100%.

III. Qinglong Project Practice and Technical Advantages

Real-world validation of thickness adaptability. Wuhan Hanxiu Theater: 15mm thin double-curved GRC panels with fiber reinforcement + vacuum degassing, free of warping and cracking. Hainan Poly Peninsula No.1: 30mm medium-thick double-curved curtain walls using layered pouring + laser inspection, meeting forming accuracy standards. Technical support: Qinglong holds 5 patents related to multi-thickness forming and has formulated the "Process Specification for Thickness Adaptation of Double-Curved GRC Panels". Custom services: custom thicknesses from 15-50mm tailored to project requirements, matched with the optimal forming solution. Quality commitment: double-curved panels of all thicknesses meet strength and flatness requirements, and non-conforming formings are redone free of charge.