SPECIALIST AGGREGATES
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Leca® 4-10mm Lightweight Expanded Aggregate - Collect
Product Code: 7890

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Price per pack£16.20£15.00£13.80£12.60

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LECA - General purpose expanded lightweight clay aggregate with a minimum of fines. Suitable for green roofs, hydroponics, chimney backfill and non structural lightweight concrete.


Pack Size: - 50 ltrs, Approximately 15kg

Granule Size: Approx. 4-10mm.

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

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

Description:
This is a genuine and original premium LECA® product manufactured by Saint Gobain and distributed in the UK by Specialist Aggregates. This 25ltr pack is offered for small projects, trial and research purposes.

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 hydroculture / 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 4-10mm Leca® provides the definitive base for lightweight soils. For bottom and peripheral drainage we would recommend the 10-20mm grade Leca®

As a component in lightweight concrete. and as a backfill to structures, especially for restricted areas, for instance backfill to chimney linings where the product's small size and spherical shape allow for ease of placement.

Expanded clay granules are made by firing selected clays in a rotary kiln at a very high temperature. As it is fired, the organic compounds in the clay burn off 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 high 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, further they can be used with cement to make a lightweight concrete mix suitable for fake rocks, theatre props and lightweight repairs.

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%



Specify: 4-10mm Leca from Specialist Aggregates.

Product Code: 7890

Orders placed for personal collection: You will be advised your collection reference by e-mail. For personal collection orders placed by telephone (01 889 580660) our staff will be able to provide an immediate collection reference.

Personal collection is from: Unit 5 Rydal Estate Colton Road Rugeley, Staffs WS15 3HF.

Collection Logistics: Aggregates will be supplied in easy to handle recyclable plastic packaging. Rocks and boulders will be supplied loose. Products will be loaded as appropriate by hand or using mechanical means into customer's vehicles.

Personal collection times: Monday to Friday 10.00 am to 12.30pm – 2.00 pm to 4.30 pm. Price quoted for this item relates to personal collection only. Extra-over charge for collection by customer arranged courier £15.60 per pack (inc VAT).

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Leca® 4-10mm Lightweight Expanded Aggregate
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