Kramer Expanded Glass 

Kramer Expanded Glass

Expanded glass has a very good thermal and sound insulating properties, it is also resistant to moisture, fire, chemicals and is dimensionally stable even after years without shrinkage and swelling.

Kramer Expanded Glass is a grey lightweight aggregate with bulk densities starting from 100 kg/m³.

We produce Kramer Expanded Glass in 4 standard grain size:

• ø 1 - 2 mm
• ø 2 - 4 mm
• ø 4 - 8 mm
• ø 8 - 16 mm

Grain size: ø 1 - 2 mm
Bulk Density, kg/m³: 150±30
Compressive Strength, MPa, not less: 0,3
Thermal conductivity, W/m-K, not more: 0,06
Work temp., С°: 500

Grain size: ø 2 - 4 mm
Bulk Density, kg/m³: 130±30
Compressive Strength, MPa, not less: 0,4
Thermal conductivity, W/m-K, not more: 0,06
Work temp., С°: 500

Grain size: ø 4 - 8 mm
Bulk Density, kg/m³: 100±20
Compressive Strength, MPa, not less: 0,3
Thermal conductivity, W/m-K, not more: 0,055
Work temp., С°: 500

Grain size: ø 8 - 16 mm
Bulk Density, kg/m³: 100±20
Compressive Strength, MPa, not less: 0,3
Thermal conductivity, W/m-K, not more: 0,055
Work temp., С°: 500

Main Properties of Kramer Expanded glass granulate

Low density combines withe the high compressive strength;
Excellent thermal insulating and sound absorption properties;
Spherical grain shape;
Color Grey/Cream/White, for any client’s purposes;
100 % mineral;
Fire and heat resistant;
Health- and Environment friendly material: inert, non-toxic, solvent-free, fibre-free, odor-neutral, anti-allergen and radiologically completely safe;
Long-term stability;
Chemical and biological resistance.

The benefits of Kramer Expanded Glass as lightweight aggregate

OPTIMISING PRODUCTS 
- due to the low density and spherical shape reduces production costs.
- reduces the use of other materials, such as resins, cellulose ether and other binding materials.
- preserves the rheological properties of the mortar.
- remains stable in the building construction, and during the expected life of the building: it gives no shrinkage and prevents the formation shrinkage cracks.

TECHNOLOGICAL ADVANTAGES 
- increases the yield while preserving of the final product’s quality.
- gives the product a more elastic structure that allows it to take more deforming load and enhance stability to attrition.
- improves adhesion and works as an adhesive mortar that is a great advantage for the exterior.
- reduces the water absorption, adjusts the water vapour permeability rate and reduce the risk of efflorescence, cracking and reduces rejects.

ENVIRONMENT AND SAFETY
Kramer Expanded Glass is a non-toxic, odorless, does not emit dust, it doesn’t cause any allergic reactions. It can be recycled as well. With Kramer Expanded Glass  lightweight concrete becomes a pure mineral and ecological construction product, which can be easily recycled when needed. It does not harm the environment and human health.