Structural glass blocks for partition walls and decorative elements with thermal and acoustic insulation properties
01 Physical
Density2400-2500kg/m3
Specific gravity2.4-2.5
Porosity0%
Water absorption0%
Hardness5.5-6.5Mohs
UV resistanceModerate-Good
Chemical resistanceExcellent
pH tolerance1-12pH
Surface roughness1-50um
02 Mechanical
Tensile strength30-50MPa
Compressive strength6-45MPa
Flexural strength30-50MPa
Shear strength5-15MPa
Poisson's ratio0.22-0.24
Impact resistanceModerate-HighJ
Creep resistanceExcellent
03 Thermal
Thermal conductivity0.6-1.0W/mK
Specific heat800-840J/kgK
Thermal expansion0.008-0.009mm/m/degC
04 Compliance & Fire First question
Combustibility classA1
Fire resistance level0-90minutes
Ignition tempN/A - non-combustibledegC
Flame spread index0
Smoke dev. index0
Heat release rate0kW/m2
05 Sustainability & Health
Embodied carbon0.70-1.20kg CO2-eq/kg
Carbon footprint50-100kg CO2-eq/m2
Embodied energy12-18MJ/kg
Water footprint5-15L/kg
Recyclability50-100%
Recycled content15-50%
Renewable content0%
Circular score5.0/10
VOC emissions0ug/m3
Toxicity ratingNon-toxic
LEED contribution2-4points
06 Durability · Cost · Logistics
Expected lifespan50-100+years
Maintenance interval5-10years
Warranty period10-25years
Material cost (range)150-500AUD/m2
Material cost (per unit)15-55AUD/block
Lead time7-60days
Lifecycle cost300-700AUD/m2
Annual maintenance1.00-5.00AUD/m2/year
Market availabilityModerate
07 Assessment
Advantages
Excellent natural daylighting while maintaining visual privacy
Good thermal insulation for a glazing product (U-value 1.1-2.8 W/m2K)
Strong sound insulation (STC 35-53 depending on type)
Non-combustible with fire-rated options up to 90 minutes
Durable and low maintenance - glass surface resists staining and weathering
Wide range of patterns, colours, and finishes for design flexibility
Vandal and graffiti resistant (glass surface easily cleaned)
Suitable for wet areas - impervious to moisture
Constraints
Heavy self-weight (60-80 kg/m2) requiring adequate structural support
Cannot carry structural loads beyond self-weight and in-plane loads
No ventilation capacity - fixed glazing only
High installed cost compared to conventional glazing or masonry
Limited to non-loadbearing or infill panel applications
Difficult to modify or create openings once installed
Can create greenhouse effect in sun-exposed applications without solar control
08 Applications
A1Interior partition wallsNon-loadbearing partition walls that transmit natural daylight between spaces while maintaining visual privacy and sound insulation
A2Bathroom and wet area wallsWaterproof, low-maintenance wall construction for bathrooms, showers, and pool areas providing light and privacy
A3Facade feature panelsExternal building facade elements providing daylighting, thermal insulation, and distinctive architectural expression
A4Stairwell and corridor daylightingLight-transmitting wall panels in circulation spaces reducing artificial lighting requirements and improving occupant experience
A5Fire-rated assembliesUL-classified glass block assemblies for 45, 60, or 90-minute fire-rated wall and window applications where light transmission is required
09 Sources & Standards
Sources pending — citations for this material are not yet recorded.
Verify all figures against manufacturer data and current standards
before specifying.
Currently living and working on the land of the Wurundjeri Woi Wurrung
People.
We acknowledge the Traditional Custodians of this land, whose
sovereignty was never ceded, and pay our respect to their enduring
connection to Country.