Tranquix Stone
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LECA (Lightweight Expanded Clay Aggregate) is a high-performance ceramic aggregate produced from natural clay expanding at high temperatures. It is characterized by high strength, low water absorption, and low density, making it an ideal material for formulating high-performance concrete, gardening, and hydroponics.
| Product Name: | Expanded Clay Pebbles / LECA |
| Material: | 100% Natural Clay |
| Available Sizes: | 2-4mm, 4-8mm, 8-12mm, 12-16mm |
| Bulk Density: | 240 to 880 kg/m3 |
| Compressive Strength: | 0.6 to 3.0 N/mm2 |
| Thermal Conductivity: | 0.09 to 0.10 w/mk |
| Surface Alkalinity: | Neutral pH |
Expanded clay pebbles provide excellent aeration and drainage for roots. They are lightweight, do not compact over time, and help maintain a consistent moisture level for plants.
Yes, they are one of the most popular media for hydroponics. They provide great support for plants while allowing high oxygen levels to reach the roots.
Our LECA balls are pH neutral (typically 7-8.5), meaning they will not significantly alter the nutrient solution's chemistry in hydroponics or the soil's acidity.
Absolutely. LECA is durable and does not decompose. Simply wash and sterilize them to remove old organic matter, and they can be used indefinitely.
In construction, it is used to create lightweight concrete, which reduces the dead load of structures. It also provides superior thermal insulation and soundproofing properties.
They are called high-performance due to their high compressive strength combined with very low density and low water absorption compared to traditional aggregates.
