1. Leca®LWA in Rail Construction
In the re-construction of railways Leca® Lightweight Expanded Clay Aggregate can be applied to repair settlement defects, to increase levelling and to improve bearing capacity.
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In the re-construction of railways Leca® Lightweight Expanded Clay Aggregate can be applied to repair settlement defects, to increase levelling and to improve bearing capacity. In addition, with the help of Leca® Lightweight Expanded Clay Aggregate road and rail embankments that require widening can be constructed with minimal effect due to increased loading to the existing structure.
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2. Leca® LWA in Highway Development
In highway development, Leca® Lightweight Expanded Clay Aggregate can be applied to repair settlement defects, to increase levelling and to improve bearing capacity.
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In highway development, Leca® Lightweight Expanded Clay Aggregate can be applied to repair settlement defects, to increase levelling and to improve bearing capacity. In addition, with the help of Leca® Lightweight Expanded Clay Aggregate road and rail embankments that require widening can be constructed with minimal effect due to increased loading to the existing structure.
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3. Leca® LWA within Retaining Walls
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.
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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. The bulk weight of the wall can also be reduced and more cost efficient, attractive materials can be used in place of costly, unattractive structural concrete.
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4. Leca® LWA within Bridges
The ‘pull out’ resistance of LECA® Lightweight Expanded Clay Aggregate makes it an ideal solution for reinforced soil retaining walls and bridge design.
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The ‘pull out’ resistance of LECA® Lightweight Expanded Clay Aggregate makes it an ideal solution for reinforced soil retaining walls and bridge design. Particularly when constructed over weak sub-soils or voids, this method has been proven to cut overall construction costs considerably. LECA® Lightweight Expanded Clay Aggregate is used extensively to reduce vertical loading.
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5. Leca® LWA within Tunnel Construction
Leca® LWA proved the most effective solution in all three parameters and the joint venture contractor welcomed the fast build solution it provided.
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A tunnel is an underground passageway, dug through the surrounding soil/earth/rock and enclosed except for entrance and exit, commonly at each end.
The options for an unused tunnel may include demolishing the arch and replacing it with a more substantial structure, building a cover slab on new supporting piles above and independent of the existing arch, or find a lightweight material to infill the tunnel - that would be substantially lighter than general class 1 fill.
Leca® LWA is proven to be a cost effective long term solution.
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6. Leca® LWA for Coastal Development
When constructing a quayside and coastal development, soft ground conditions often call for the use of lighter fills to guard against slide or deformation which can damage structures.
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When constructing a quayside and coastal development, soft ground conditions often call for the use of lighter fills to guard against slide or deformation which can damage structures. A number of solid berth structures have been successfully built over recent years using Leca® Lightweight Expanded Clay Aggregate.
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7. Leca® LWA for Green Roof Solutions
In general, Leca® Lightweight Expanded Clay Aggregate is used to reduce, compensate or prevent settlements, to improve stability of a fill structure or landscape or to decrease soil pressure on a retaining structure produced by backfill.
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In general, Leca® Lightweight Expanded Clay Aggregate is used to reduce, compensate or prevent settlements, to improve stability of a fill structure or landscape or to decrease soil pressure on a retaining structure produced by backfill. In the same applications, Leca® Lightweight Expanded Clay Aggregate can be used both as drainage intensifying and as moisture retaining for vegetation and also as a frost protection layer.
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8. Protect Piping Systems
Water drainage system can be difficult when the drain runs across a soft soil site. Leca® Lightweight Expanded Clay Aggregate can be used as a light weight pipe surround to reduce the pressure to the underlying soils and minimize the likelihood of irregular settlement.
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Water drainage system can be difficult when the drain runs across a soft soil site. Leca® Lightweight Expanded Clay Aggregate can be used as a light weight pipe surround to reduce the pressure to the underlying soils and minimize the likelihood of irregular settlement.
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9. Sheet Piling Walls
In geotechnical engineering, Leca® Lightweight Fill is commonly used as a backfill material behind sheet pile walls due to its combination of low density, high strength, and drainage properties.
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In geotechnical engineering, Leca® Lightweight Fill is commonly used as a backfill material behind sheet pile walls due to its combination of low density, high strength, and drainage properties.
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10. Floating Lagoon with Leca® LWA
Leca® LWA possesses the suitable natural properties which included the ability to counter frost; be used as a natural media for plant growth; is safe for use in drinking water reservoirs and has a natural buoyancy property due to its natural porous properties.
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Leca® LWA possesses the suitable natural properties which included the ability to counter frost; be used as a natural media for plant growth; is safe for use in drinking water reservoirs and has a natural buoyancy property due to its natural porous properties.
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11. Low Weight / High Strength Concrete Aggregate
Structural applications where normal weight concrete is not the preferred solution and a Higher Strength Leca® Lightweight Aggregate Concrete (LWAC) is the solution, Leca® HD is the aggregate of choice.
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Structural applications where normal weight concrete is not the preferred solution and a Higher Strength Leca® Lightweight Aggregate Concrete (LWAC) is the solution, Leca® HD is the aggregate of choice.
Reduce deadloads and achieve high strength equivalent to Normal density concrete.
Leca® HD, Lightweight Aggregate (LWA) is a natural, unique and sustainable lightweight clay aggregate. Leca® LWA has remarkable properties which ensure its versatility for use in Lightweight Aggregate Concrete (LWAC) applications.
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12. Efficient drainage of the structural layers of a pavement
Using free draining Leca® Lightweight Expanded Clay Aggregate as a structural material within a civil engineering development will intercept the percolating water and water rising by capillary action from the sub-formations and direct the rising water away from the upper construction layers to improve load bearing capacity.
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Efficient drainage of the structural layers of a pavement prevent loss of load bearing properties caused by water and will provide effective drainage throughout the civil engineering project’s lifetime.
Using free draining Leca® Lightweight Expanded Clay Aggregate as a structural material within a civil engineering development will intercept the percolating water and water rising by capillary action from the sub-formations and direct the rising water away from the upper construction layers to improve load bearing capacity.
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