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SPECIALIST AGGREGATES
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Leca® Chimney BackfillLeca® Chimney BackfillLeca® Chimney BackfillLeca® Chimney BackfillLeca® Chimney Backfill
Leca® LWA - Chimney Backfill
Product Code: 7890/CB

Options:
 6 Pack pallet:   £148.08 Inc VAT and delivery 
 12 Pack Pallet:   £198.07 Inc VAT and delivery 
 21 pack Pallet - One m3:   £240.00 Inc VAT and delivery 
 30 Pack Pallet:   £299.52 Inc VAT and delivery 

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Quantity:

LECA®LWA - Lightweight expanded clay aggregate specifically graded to provide for ease of installation when used as chimney liner backfill. Delivered in robust 50ltr packs weighing approximately 15kg.


Pack Volume: 50 ltrs. Weight per pack approximately 15kg
Note: The packing configuration on the one m3 pallet allows for 21 packs which supplies an actual volume of 1.050m3

Pack size: Approximately 800mm x 400mm x 150mm.

Granule Size: Approx. 4-10mm.

Density: LECA® LWA is a super-lightweight aggregate with a dry bulk density of approximately 350 kg/m3.

Water Saturated Density:
When saturated for at least 24 hours, 4-10mm LECA® LWA is likely to absorb approximately 30% by weight of water with a resultant bulk density in the order of 500kg/m3

Description:
Genuine and original premium brand LECA® LWA manufactured by Leca(Saint Gobain), and distributed prepacked throughout the UK by Specialist Aggregates.

Delivered in robust 50ltr packs on a pallet for specific use as a backfill to lined chimney installations.

Expanded clay granules are made by 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 a good resistance to crushing.

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.

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

Inert Backfill: Especially for restricted areas, for instance backfill to chimney linings where the product's small size and spherical shape together with convenient and strong packaging allow for ease of placement.

Installers tell us that Leca® LWA has advantages over vermiculite based products in so far as the material will not clump in damp conditions, or blow away during installation.

Whilst every chimney will be different our personal experience on backfilling a lined chimney on a typical 1930's town house required one 50ltr pack per metre of chimney.


Particle Size:
Typically:
Sieve Size mm % Passing
14 100%
10 99%
8 81%
4.0 9%
0.25 1%
Chemical Composition:
Principal components typically:
Chloride 0.04%
Acid Soluable sulphate 0.5%


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

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

We export throughout Europe and Worldwide - please enquire for shipping rates

Logistics:
This product option is supplied packed in safe and easy to handle weatherproof packs stacked on a wooden pallet. Packs are stretch wrapped onto the pallet for added protection and security during delivery.

Pallets are delivered by national couriers and off-loaded onto a level hard-standing using vehicle tail-lift and pallet truck. Please advise during checkout or contact our office if you have specific delivery requirements or concerns.

The immediate product wrapping, pallet stretch wrap and wooden pallet can all be recycled.

Specify: LECA® Chimney Backfill (50ltr Packs) Supplied by Specialist Aggregates.

Product Code: 7890/CB

Articles relating to LECA®LWA and other Lightweight Expanded Clay Aggregate Products:
Leca®LWA provides an effective solution to under floor refurbishment.
Black Friday Turns to Gold - Coloured Lightweight Expanded Clay Aggregate Heads for the High Street
Baa Baa Black Sheep have you any Lightweight Expanded Clay Aggregate

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01889 580 660
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Leca® LWA 4-10mm

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