Key Features of Industrial Leca Pumice
Thermal Insulation: The high porosity and low thermal conductivity of Leca aggregates reduce fuel and electricity consumption, lowering the building’s operating costs.
Sound Insulation: The presence of pores with varying sizes and depths reduces sound reflection by up to 50%.
Chemical Inertness: The pH of Leca aggregates is around 7, making them chemically neutral and free from reactive minerals; therefore, they do not cause corrosion or decay in other building components.
Low Water Absorption: Due to their closed internal pores, unique cellular structure, and outer coating layer, Leca aggregates have the lowest water absorption among lightweight aggregates—approximately 18% of their weight.
Non-Compressibility: Leca aggregates do not compact under constant mechanical pressure or repeated loading, maintaining a consistent percentage of air within the particles.
Lightweight: Leca aggregates have a low weight and density of approximately 260 kg/m³.
Frost Resistance: Capable of withstanding repeated freeze–thaw cycles.
Service Life: Over 100 years of durability—longer than any other type of natural lightweight aggregate.