Basalt Crushed Stone 16–32 mm
When it comes to durability and uncompromising resilience in outdoor areas, basalt crushed stone has long been the first choice for landscaping professionals. This high-quality natural stone in the classic 16–32 mm grain size is produced by crushing solid volcanic rock, which has solidified over millions of years from cooling magma into one of the hardest types of rock on earth. In modern architecture, basalt is particularly valued for its puristic color intensity: while the stones appear in an elegant, matte anthracite when dry, they transform into deep black, glossy accents when it rains. This visual versatility and its enormous density allow the material to blend seamlessly into contemporary designs while providing the technical reliability essential for demanding construction projects.
Features and Advantages
The core strength of this material lies in its extreme compressive strength and load-bearing capacity. Since the stone is 100% frost and de-icing salt resistant, it remains dimensionally stable and colorfast for decades without fading due to UV radiation. Through a special screening process, the fine fraction (the so-called "zero content") is removed. The result is a highly water-permeable material that effectively prevents waterlogging and allows rainwater to seep into the ground immediately.
Applications
In modern landscaping, this crushed stone is a true all-rounder. It is excellently suited for constructing stable garden paths and driveways, but also serves as a functional splash guard (eaves strip) directly along the house to keep the facade clean. Due to its drainage properties, it is also the ideal material for backfilling soakaways or wrapping drainage pipes in civil engineering. In decorative garden design, such as rock gardens or as a mulch substitute in flower beds, it also sets high-quality accents.
Expert Tip for Application
Based on years of experience in landscaping, I recommend a layer thickness of approx. 6 to 8 cm for opaque coverage. To keep maintenance efforts permanently low, you should lay a high-quality weed fleece under the stone. This not only prevents the growth of weeds from the soil but also cleanly separates the premium basalt from the ground so that it does not sink into the soil over time.
Technical Data
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Material: Natural basalt, crushed and angular
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Grain size: 16–32 mm
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Color: Anthracite / Dark grey
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Density: approx. 1,820 kg per m³
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Note: Natural product – slight variations in color and shape are inherent to the material.
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