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10-20mm leca®Leca utilised as greenhouse bench toppingExample of Green Roof - Toronto CanadaHoneycomb structure of Hydro-LecaLeca utilised as greenhouse bench toppingGenuine LECALECA, in stock, at our depot in Rugeley
Leca® LWA 10-20mm Lightweight Expanded Aggregate
Product Code: 7892

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Price per pack£35.40£31.20£28.80Click to View
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LECA® LWA - General purpose super-lightweight expanded clay aggregate. Supplied pre-packed to provide lightweight horticultural substrate and construction infill in particular where access is difficult or restricted.

Pack Size: 50 ltrs - Approximately 15kg

Granule Size: Approx. 10-20mm.

Density: LECA® LWA is a super-lightweight aggregate with a dry bulk density of approximately 280 kg/m3.

Water Saturated Density:
When saturated for at least 24 hours, 10-20mm LECA® LWA is likely to absorb approximately 30% by weight of water with a resultant bulk density in the order of 500kg/m3

Products are generally supplied dry, however, please specify at the point of ordering if this is important to your application.

Description:
This is a genuine and original premium LECA® LWA product manufactured by Leca(Saint Gobain) and distributed in the UK by Specialist Aggregates. This single 50ltr pack delivered by courier is offered for small projects, trial and research purposes.
Expanded clay granules are made by pelletising and firing selected clay in a rotary kiln at a very high temperature. As it is fired, the organic compounds in the clay vaporise forcing the pellets to expand and become honeycombed, while the outside surface of each granule fuses to give a ceramic shell. The resulting granules are lightweight, porous, and have good resistance to crushing.

Application & Use:
Top quality clean general purpose expanded lightweight clay with a minimum of fines. The product is a dark grey/brown colour and offered for use in situations where aesthetics are not a prime consideration, in particular:

As a substrate in hydro-culture / hydroponics, and blended with other growing media to improve drainage and provide insulation.

Green Roofs: The web contains advice on many and often contradictory methods for producing green roofs. Nevertheless our 10-20mm Leca® LWA provides the definitive product for bottom and peripheral drainage. To create lightweight soils we would recommend 4-10mm grade Leca® LWA.

As a backfill to structures, especially for situations with restricted access like the rear gardens to properties or shopping malls and for providing lightweight fill to planters.

Being a natural product expanded clay aggregate contains no harmful substances, it is inert with neutral pH, The granules are resistant to frost and chemicals, and will not break down in water. They are also non-combustible and have excellent sound and thermal insulation properties, further they can be used with cement to make a non-structural lightweight concrete suitable for fake rocks, theatre props and lightweight repairs.

Moisture Content:
This product is generally supplied dry, however, please inform our office if this is a specific requirement for your application

Rocks in a Box™ For protection and security your product will be shipped within a weatherproof pack within our easy-to-handle double walled cardboard box.

Boxes are delivered by national couriers. Please advise during checkout or contact our office if you have specific delivery requirements or concerns.

Both the inner plastic pack and the outer box can be recycled via normal household or industrial/commercial collections.

Price Promise:
All prices in include UK VAT and delivery to mainland locations in England, Wales and Southern Scotland - There are no hidden charges on checkout.

Happy to export throughout Europe and Worldwide - please enquire for shipping rates

Particle Size:
Typically:
Sieve Size mm % Passing
20 100%
14 74%
10 17%
8.0 3%
0.25 1%
Chemical Composition:
Principal components typically:
Chloride 0.04%
Acid Soluable sulphate 0.5%


Compaction: Typically the product is likely to compact by 8-12% from its delivered un-compacted state to a long term compacted state above the water table.

Price Promise:
All prices in include UK VAT and delivery to mainland locations in England, Wales and Southern Scotland - There are no hidden charges on checkout.

Happy to export throughout Europe and Worldwide - please enquire for shipping rates

Rocks in a Box™ For protection and security your product will be shipped within a weatherproof pack within our easy-to-handle double walled cardboard box.

Boxes are delivered by national couriers. Please advise during checkout or contact our office if you have specific delivery requirements or concerns.

Both the inner plastic pack and the outer box can be recycled via normal household or industrial/commercial collections.

Specify: 10-20mm Leca ® LWA Supplied by Specialist Aggregates.

Product Code: 7892

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Leca® LWA 10-20mm

Leca® LWA 10-20mm

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