Granulates

BISOROCK^® landscaping granulate made from precious expanded silicate that is suitable for soil improvement in gardening and landscaping. The precious expanded silicate is an excellent water-and nutrient retainer, also providing high quality soil aeration.

As an aggregate for substrates and lightweight concrete BISOROCK^® Edellava (enhanced lava) is perfect. Pressure, frost and weather resistance are just some of the advantages of natural lava rock.

Sand has many uses in the construction industry. Our BISOROCK^® lightweight sand is much lighter than conventional sand and is composed of washed  expanded silicate, lava, basalt and slate chippings.