Civil Engineering
It can be installed using machinery already in use on site for the placement of other earthworks applications - unlike other lightweight products that require costly specialist equipment and installation techniques.
The pellets of Leca® LWA are round and find their position within bulk fill very quickly when pressure is exerted. For this reason the layers to achieve adequate compaction are as deep as 1 metre, four times the depth of layer for traditional fill material making it at least four times quicker to install.
Once compacted, the modulus of elasticity is 15-20MN/m2 and the maximum level of effective stress to avoid crushing of grains is 100kN/m2. However, protected under a capping layer such as reinforced concrete, 10-20mm Leca® LWA is able to take weights of 200kN/m2.
Surplus can easily be disposed of - for instance, if an embankment is for temporary use, the Leca® LWA can easily be reclaimed and re-used in a number of other locations, unlike other man made materials.
Cost Benefits Of Leca® LWA:
- Reduced transport costs
- Reduced sitework costs
- Reduced structural costs
- Reduced timescales
The table below compares the transportation of Leca® LWA to traditional quarried aggregates in order to demonstrate the size of load available considering UK highway weight restrictions.
