BENEFITS & PROPERTIES
Closed-Cell Structure
Sealed internal cells. Open drainage pathways.
Enviro-Rock is formed with a cellular glass structure containing sealed air pockets within each particle. These closed internal cells help limit water penetration into the particle, while the open spaces between aggregate pieces allow water to move freely through the placed material.
Moisture Resistant
Closed Cells limit water penetration into the
particle interior.
Closed Internal Cells
Sealed air pockets within the glass structure.
Sealed Cell Structure
Individual cells remain isolated rather than forming continuous pathways through the particle.
Why Closed-Cell Structure Matters
Enviro-Rock contains a network of sealed air pockets formed within the glass during manufacturing. Unlike an open-cell material, these internal pores are not intended to act as interconnected pathways for water through the particle.
At the same time, Enviro-Rock particles create substantial open void space when placed together. Water can therefore drain through the spaces between the particles while the closed-cell structure helps limit water penetration into the particles themselves.
This combination is important in below-grade and civil applications where drainage, moisture resistance, low weight, thermal performance, and long-term material stability may all be required from the same fill layer.
At the same time, Enviro-Rock particles create substantial open void space when placed together. Water can therefore drain through the spaces between the particles while the closed-cell structure helps limit water penetration into the particles themselves.
This combination is important in below-grade and civil applications where drainage, moisture resistance, low weight, thermal performance, and long-term material stability may all be required from the same fill layer.
Where Closed- Cell Structure Makes a Difference
Request Test Results →
Review Enviro-Rock water absorption testing and material data related
to its closed-cell foam-glass structure.
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Explore Related Properties
Drainage & Permeability → Frost Resistance → Thermal Insulation →
Review Enviro-Rock water absorption testing and material data related
to its closed-cell foam-glass structure.
──────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────
Explore Related Properties
Drainage & Permeability → Frost Resistance → Thermal Insulation →