Terrazzo Exterior Facade Panels
Precast inorganic and resin-bound terrazzo panels engineered for ventilated exterior rainscreen systems.
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Product Introduction
Precast inorganic and resin-bound terrazzo panels engineered for ventilated exterior rainscreen systems. Combining traditional aggregate aesthetics with industrial-grade weather resistance, factory-controlled vibration pressing and vacuum curing eliminate internal voids to guarantee uniform panel density.
Technical Specifications
|
Property |
Test Standard |
Specification Value |
|
Thickness |
ISO 8336 |
15mm, 18mm, 20mm, 30mm |
|
Max Panel Size |
Custom Cutting |
Up to 3000mm x 1200mm |
|
Density |
EN 12390-7 |
2,450 - 2,600 kg/m^3 |
|
Flexural Strength |
EN 12371 / ASTM C880 |
>= 9.5 MPa |
|
Water Absorption |
EN 13755 |
<= 6% (Cement-based) / <= 0.5% (Resin-based) |
|
Freeze-Thaw Durability |
ASTM C666 / EN 12371 |
Pass (R >= 90 after 100 cycles) |
|
Fire Classification |
EN 13501-1 / ASTM E84 |
Class A1 (Non-combustible) or Class A2-s1, d0 |
|
UV Weathering |
ISO 4892-2 |
Grade 4-5 (Gray Scale, 3000 hrs) |
|
Fixing Compatibility |
Mechanical Anchors |
KEIL or equivalent undercut anchor systems |
Key Product Features
Rainscreen Integration: Designed for open-joint sub-framing to balance cavity air pressure and mitigate thermal bridging.
Homogeneous Compaction: Automated multi-axis mixing and vibro-compaction maintain a consistent stone-to-binder ratio without segregation.
Concealed Fastening: Compatible with back-milled undercut pins to eliminate face-penetration and distribute wind loads evenly.
Low Thermal Movement: Minimal linear expansion coefficient prevents joint deformation during extreme seasonal temperature shifts.
Colors, Patterns & Surface Finishes
Aggregate Options: Carrara marble, Nero Marquina, recycled glass, river quartz, and industrial granite.
Gradation Sizes: Micro (1-3mm), Fine (3-8mm), Medium (8-15mm), Macro (15-25mm).
Finishes:
Honed: Smooth matte (60-80 grit) for uniform modern envelopes.
Sandblasted / Bush-hammered: Textured, slip-resistant surface highlighting aggregate geometry.
Acid-Washed: Chemically etched relief revealing micro-stone textures.
Applications
Ventilated rainscreen exterior facades for commercial, institutional, and high-rise civic buildings.
Pre-cut column clads and perimeter spandrel panels for building structural envelope enclosures.
Weather-resistant overhead soffits and canopy linings requiring low maintenance.
Balcony fascia perimeter shielding elements matching primary facade aesthetics.
OEM & ODM Customization
Lab Aggregate Matching: Custom mix matching from physical architect samples.
CNC Factory Processing: Pre-drilling, back-milling for undercut anchors, kerf cutting, and mitered corner fabrication.
Curved Geometries: Radius-cut and segmented panels for curved building contours.
Manufacturing & Quality Control
Batch Sieve Sorting: Raw aggregates sorted by precise sieve analysis for optical uniformity. Hydraulic pressing enforced at minimum 300 tons.
Curing Protocol: 28-day controlled steam-curing chambers regulating humidity and temperature curves prior to calibration grinding.
Inspection Standard: 100% dimensional check (+/- 0.5mm squareness tolerance), surface defect screening, and batch destructive flexural testing.
Packaging & Logistics
Export Crating: Fumigation-free vertical wooden A-frames separated by low-density polyethylene foam sheets to prevent edge chipping.
Documentation Provided: Mill Test Reports (MTR), third-party ASTM/EN certificates, shop drawings, and handling instructions.
FAQ
Q: What is the maximum safe panel size for high wind loads?
A: Standard limits are 3000 x 1200 mm at 20 mm or 30 mm thickness. Exceeding these requires engineering review based on local wind-load pressures and sub-frame spans.
Q: Are these panels compatible with standard undercut anchors?
A: Yes. High-density structural integrity accommodates mechanical undercut anchor systems (such as KEIL anchors) for blind-fastened installation.
Q: How is efflorescence prevented on cement matrices?
A: Production uses high-purity binders, low water-cement ratios, and hydrophobic admixtures, supplemented by optional factory-applied breathable sealers.
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