FAQs
What is Leca?
LECA (Light Expanded Clay Aggregate) is a lightweight, durable aggregate made by expanding natural clay at high temperatures. It is widely used in construction, agriculture, and landscaping for its strength and insulation properties.
How is Leca produced?
Leca is produced by heating and expanding natural clay in a rotary kiln at temperatures of up to 1,200°C. This process creates porous, lightweight aggregates with exceptional strength.
What is Leca made from?
Leca is made from natural clay, which is heated and expanded to form lightweight, durable aggregates.
What are the advantages of using Leca in construction?
- Lightweight: Reduces structural load.
- Thermal insulation: Improves energy efficiency.
- Sound insulation: Reduces noise transmission.
- Durability: Resistant to fire, water, and chemicals.
How long can we store Leca?
Leca can be stored indefinitely under proper conditions, such as a dry and ventilated environment.
What is the thermal conductivity coefficient for Leca Aggregate?
The thermal conductivity coefficient of Leca Aggregate is approximately 0.10–0.13 W/mK, making it an excellent thermal insulator.
Is Leca Aggregate a sound insulating material?
Yes, Leca has excellent sound insulation properties, effectively reducing noise in construction projects.
Is Leca fire-resistant?
Absolutely! Leca is highly resistant to fire, making it ideal for fireproof construction.
Are Leca blocks fire-resistant?
Yes, Leca blocks provide exceptional fire resistance and are suitable for use in fire-rated walls and structures.
What is the chemical behavior of Leca with other construction materials?
Leca is chemically inert and does not react with other construction materials, ensuring long-term compatibility and stability.
What are the notable economic benefits of using Leca?
- Cost savings: Reduces transportation and structural costs due to its lightweight nature.
- Energy efficiency: Decreases energy consumption with superior insulation.
- Longevity: Minimizes maintenance and replacement costs.
What are the general usages of Leca?
Leca is used in:
- Construction (lightweight concrete, foundations).
- Landscaping (rooftop gardens, green spaces).
- Agriculture (soil aeration, hydroponics).
- Filtration (water and wastewater treatment).
How can we learn about using Leca in the best way?
Our team provides detailed guidelines and technical support to help you use Leca effectively. Contact us for tailored advice.
What is Leca Aggregates' packing mode?
Leca is available in:
- Small bags: 50&100 liters for small-scale use.
- Bulk bags: 1, 2, 2.5 & 3 m³ jumbo bags for industrial applications.
Have you ever exported Leca to other countries?
Yes, we export Leca products globally. Please contact our sales team for more details.
What is the capacity of one container in cubic meters?
A standard container can hold 25 & 55 cubic meters of Leca Aggregate, depending on packing and container size.
What are F.O.B, CFR, C.I.F and Exwork terms in shipment as per Incoterms?

