Leca® Geotechnical Solutions
Official manufacturer of Leca® Lightweight Expanded Clay Aggregate
About us
#1 supplier of Expanded Clay Lightweight Aggregate in Europe for your infrastructure, housing and water management projects.
Who are LECA?
NEWS
Geotechnical Solutions
Leca® LWA is used extensively as a lightweight aggregate for civil engineering and structural applications. Through promotion and specification, our client base is continually finding further solutions and interesting uses for this special lightweight aggregate.
LECA Products
Applications
Leca® LWA is used extensively as a lightweight aggregate for civil engineering and structural applications. Through promotion and specification, our client base is continually finding further solutions and interesting uses for this special lightweight aggregate.
Case studies
We have a history in specification and geotechnical design. See our case studies to see where LECA LWA has been successfully applied throughout the UK.
SCREED FLOOR FOR COTTAGE RENOVATION
Leca® Uno was specified as part of a cottage renovation project in Cambridgeshire, where the aim was to create a lightweight screed floor compatible with traditional building fabric.
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MARPLE COMMUNITY HUB, STOCKPORT
Lightweight Backfill Solution for Swimming Pool Construction
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Sustainability
Our intermediate commitment is reducing the greenhouse gas emissions by 30% in 2025 followed by 50% reduction by 2030, achieving Carbon Neutrality by 2050. For that LECA will invest in clean processes, substituting the consumption of fossil fuels with green energy. To bring to You and to the Planet an even more sustainable product.
Our Sustainability Story
Groundwork Solution
Official manufacturer of Leca® lightweight expanded clay aggregate 10-20mm (LWA)
- Stability – reduces the risk of embankment landslide and deformation
- Reduced settlements - to road structures, rail beds, pipelines and other structures
- Reduced earth pressure - in structural backfill against foundations, retaining walls and bridge abutments
- Limited compaction – approximately 10 - 12%
- Low density and Resistant to Fire
- EPD Verified and certified
- Tested to conform: EN 15732, EN 13055-1 & 2, CE Declaration
Home Renovation Lightweight Solutions
Easy installation and Fire Resistant (Euroclass A1)
- Leca® Insulation Fill is a lightweight expanded clay insulation that cuts foundation time by hours
- Leca® Uno Pre-Mix Concrete for filling floors, applied in a single layer - increasing thermal and acoustic improvement of floors.
- Leca® Chimney & Flue Backfill provides a lightweight, stable and insulating surround to the flue improving draw and retaining heat
Water Management
- Storm Water Management - Water interacts with Leca® Lightweight Aggregate in a way that allows the material to provide water detention and drainage
- Green Roof Construction - Leca® Lightweight Aggregate is an ideal and lightweight solution to solve complex challenges in urban Green Roof development.
Leca® Lightweight Concrete
One of the primary benefits of using Leca® Lightweight Aggregate Concrete (LWAC) in lightweight concrete production is its reduced weight. The aggregate's unique porous structure significantly decreases the overall weight of the concrete, making them easier to handle and transport.
- Leca® Lightweight Concrete (Block Solution, Floor Base, Precast & Screed Solution)
- Leca® High Density Concrete (Wind Turbines, Barges, Floating Fish Farms, Floating Bridge Foundations)
