LECA Lightweight Aggregate

Leca® Insufill Underfloor Insulation (50L Bags)

Innovative Retaining Wall Design with Leca®

 When used against retaining walls, Leca® LWA will reduce the weight acting on the rear of the structure by at least 75%, in comparison to traditional fill materials. This reduction in weight can avoid potential sliding, overturning, slip and tilting or bearing failures and enables savings by increasing spacing between buttressing walls and reducing structural dimensions.  

Minimise Differential Settlement

As it is a free draining material, Leca® LWA has the added advantages of eliminating the need for rear wall block drainage.

  • Stability: Reduces the risk of the embankment landslide and deformation.
  • Reduced Settlements: Less Damage to pipelines and other structures.
  • Reduced Earth Pressure: in structual backfill against foundations and retaining walls.
  • Drainage: on sports grounds, fields and slopes. 
  • Insulation: protection for pipelines and service mains
  • Frost Stability
  • Limited compaction: exerted energy during compaction is minimal with a reduction in volume of approximately 10-12%
  • Low Density and Ease of Handling: coupled with consistent high quality make Leca LWA a highly competitive alternative to other lightweight materials.

The lightweight alternative to hardcore and insulation:

  • is lightweight and easy to handle
  • is thermally insulating
  • is protective to duct, pipe and damp proof membranes
  • can be installed in the bag directly in to the foundation
  • saves time and money
  • Lay it in minutes in a simple, one-man operation

Lay it in minutes in a simple, one-man operation

In larger projects where resident turnaround times are key in housing upgrades, Leca® Insulation Fill can save around 40 man hours per house during installation of insulated solid floors. It cuts turnaround times, minimises disruption for residents and enables two labourers to prepare a 40m² base in just one hour, compared to two days for three labourers to do the same job using hardcore and polystyrene insulation. It also virtually eliminates the need for numerous heavy vehicle journeys through the site during the works.

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Suitable for:

Extensions
Conservatories
Garages
Refurbishments
Conversions
Driveways
Drainage
General back fill