LECA, or Lightweight Expanded Clay Aggregate, is a type of lightweight aggregate made by heating clay to high temperatures, causing it to expand and form small, round pellets. Here are some key features and uses of LECA:
Features
Lightweight: LECA is significantly lighter than traditional aggregates, making it easier to handle and transport.
Insulating Properties: It has good thermal and acoustic insulation qualities.
Drainage: The porous structure allows for excellent drainage and aeration, making it suitable for various applications.
pH Neutral: It doesn’t alter the pH of soils or growing media.
Uses
Horticulture: Commonly used in potting mixes and as a drainage layer in potted plants and hydroponics systems.