Installation guidance

• Excavation

  

  Excavate immediately prior to the introduction of GEOMATERIALS Foam Glass to meet flatness and compressive strength in accordance
  with the object-related requirements. Unless otherwise specified, the requirements for flatness and compressive strength should be based on the
  principles of ZTVE – StB 94. Lay sewage pipes in pipe trenches and fill with sand on sub-grade level.

• Lay the GEOTEXTILE

  

  Set up the formwork for GEOMATERIALS Foam Glass and lay out the flat surface with geo-textile (150g/m²) overlapping. Provide sufficient overhang so that the finished fill can be completely packed later. Position splice bars marking the compacted (final) height of GEOMATERIALS Foam Glass, at regular intervals.

• Install GEOMATERIALS Foam Glass

  

  If GEOMATERIALS Foam Glass is delivered loose, it is offloaded directly into the excavated pit. Above the installation site, the Big Bags have to be lifted and opened from below with the help of an excavator or crane.

• Distribute GEOMATERIALS Foam Glass

  

  At smaller sites, level GEOMATERIALS Foam Glass uniformly to the marked height using an excavator shovel and rakes. For larger construction sites a mechanical distribution is carried out before the head by a charger or a shovel. Driving over the uncompacted material should be avoided, as precompaction increases material consumption.

• Compact GEOMATERIALS Foam Glass

  

  For small sites, compacting shall be performed by a lightweight vibration plate (weight: 80-100 kg, frequency: 85-100 Hz, supporting area: 50 cm, straight running). For areas > 200 m² you can use a soil compactor. A compression exceeding the specifications, results in a higher material consumption, but does not have any negative impact on the technical properties. For design thickness greater than 30 cm, GEOMATERIALS Foam Glass must be dumped in two layers and each layer has to be compacted. The flatness of the surface has to be made before the compacting process, so that at least a flatness tolerance of +- 3 cm in relation to a length of 4 m is achieved.

• Lay the separation layer

  

  After completion of compression, the Geotextile is wrapped-up laterally and the entire GEOMATERIALS Foam Glass layer is covered with a PE-foil to protect against cement residue.

• Install formwork for foundation slab

  

  Place the formwork for the floor slab directly on the prepared surface and create the floor slab according to the specification. The ring drainage (sewer pipes) is laid around the pit after the formwork has been removed.

• Closing remark

  According to the General Building Inspectorate Approval, a PE film must be placed on the compacted surface of GEOMATERIALS Foam Glass, except for project-related, justified deviations. GEOMATERIALS Foam Glass walkable at a compression ratio of 1.3 to 1. From a compression ratio of 1.6 to 1, careful driving is possible (axle load up to 7.0t). The compacted planum must not be damaged.

   

• Evenness of the subgrade

  An evenness of the subgrade after compaction of +/-3cm over a measuring length of 4 m can be achieved with GEOMATERIALS Foam Glass.

   

Recommended equipment for installation of GEOMATERIALS Foam Glass

Possibilities for delivery