-
Composition : Silica-sand, soda ash, calcium.
- Fusion is obtained at
approximately 1550°C.
- Physical characteristics:
Density: 2.5
Strength: 10,000 da/Ncm2 under
compression
Expansion : between +20°C and +220°C = 9 x 10-6
Insulating Glass Blocks
Manufactured
by heat fusion at more than 800°C of two hollow half bricks
obtained by compression of a glass drop at about 1050°C.
These bricks are annealed at 560°C to eliminate internal
tensions and containe rarefied air.
Light Transmission
- Clear
190x190x80
=80%
- Coloured
190x190x80
=60%
- Clear
190x190x100
=80%
- Clear
240x240x80
=85%
- Clear
300x300x100
=84%
Thermal Transmission
- Average value = 2.9W/m2°C
: Single Wall
= 1.3W/m2°C
: Double Wall
Thermal Expansion
- Between +20°C and 200°C
= 9 x 10-6
Impact Strength
- 12.0 N/mm - Tested using 50kg
sand bag and steel ball bearings (DIN requires 6.8 N/mm)
-
Composition : Silica-sand, soda ash, calcium.