Industrial Lightweight Aggregate (Pumice) Products

Elica Stone-Based Industrial Lightweight Aggregate Elica lightweight aggregate is considered a suitable alternative to natural pumice. Natural pumice deposits are located in specific areas, making access difficult and transportation to the point of use economically unjustifiable. In addition, owing to their natural origin, their properties vary, resulting in inconsistencies in the quality of the final product. During the extraction of natural pumice, layers with high clay content or other impurities, such as lime and gypsum, are sometimes encountered, which significantly reduces its quality. Overall, the production process of natural pumice cannot be fully controlled. In the production of Elica industrial pumice, no chemical or hydrocarbon additives are used. Moreover, no harmful substances (other than combustion gases from the kiln fuel) are released into the environment. Therefore, the production of Elica pumice is regarded as a green and environmentally friendly process. In clay-based pumice, due to the use of fuel oil during production, unburned residues remain trapped within the product, which are gradually released over time within the structure. In contrast, Elica stone-based lightweight aggregate is free from such issues. The honeycomb structure and the lack of interconnection between the porous spaces in Elica pumice not only ensure lightweight properties but also provide excellent thermal and acoustic insulation. Consequently, this product is suitable not only for use in high-rise structures to reduce structural weight and seismic load, but also in desert and hot-climate regions for building insulation. Furthermore, pumice produced from stone materials demonstrates lower water absorption, as well as greater strength and durability, compared to clay-based varieties.

• Use of rounded and crushed aggregates in the production of structural and non-structural lightweight concrete components in construction and other infrastructure facilities.
• Crushed and rounded aggregates, due to their high angle of friction, low weight, suitable compressive strength, and excellent drainage properties,
• Serve as an ideal filler in buildings and behind retaining walls.
• Improvement of the structure of heavy clay soils to reduce weight and enhance water retention capacity.
• Due to their buoyancy and high durability in water, impermeable-coated particles can be used as a covering layer to prevent water evaporation in pools, canals, reservoirs, dams, and embankments.
• Use as a protective cover over buried pipelines and tunnels.
• Absorption of oil pollution from the water surface.
• At present, Elica industrial lightweight aggregate is supplied for construction purposes in bagged packaging of various volumes. Depending on the application and customer requirements, it can also be prepared and delivered in customized volumes.

Elica industrial lightweight aggregate is produced in various sizes ranging from 1 millimeter to more than 100 millimeters, depending on consumer requirements. The external surface of the pumice is completely rough and irregular with numerous fine pores, while the interior of the particles exhibits a black cellular texture. The high porosity and ceramic nature resulting from kiln firing provide this material with remarkable properties such as low weight, low thermal conductivity, effective sound absorption, fire resistance, and chemical durability and stability.