Customization: | Available |
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Stone Form: | Block |
Surface Finishing: | Split |
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Volcanic stone has red, black, blue, gray, and so on. The colors vary in weight and the uses vary. It is a gas-rich melt slurry sprayed into the air to condense, the gas contained in it swells and escapes, leaving pores, forming a slag-like appearance, black, dark brown, and the pores are often irregular, round and oblong, and the size It ranges from a few millimeters to 10 centimeters and is distributed around the crater.
1.Shape
Shape: LAVA with hole;No pointed particle shape, small resistance to water flow, not easily blocked, uniform distribution of water and air, rough surface
2.Color
Color: Natural Red, black, blue, gray, and so on
3.Chemical composition of volcanic stone:
SiO2 | CaO | MgO | Fe2O3 | Al2O3 | K2O | Na2O | FeO | CL-- | L.O.L |
52.54% | 8.57% | 2.49% | 10.00% | 17.00% | 2.50% | 2.93% | 1.36% | 0.01% | 4.95% |
Bulk Density kg/m3 |
Loose bulk density kg/m3 |
Moisture % |
Heat conductivity coefficient w/(m.k) | Water absorption % |
Cylinder pressure strength Mpa |
softening coefficient |
450-600 | 540 | <1 | 0.325 | 21 | 2.216 | 0.84 |
4.use of lava rock:
Application | 1) Construction |
2) Water conservancy | |
3) Grinding | |
4) Filter material | |
5) Barbecue charcoal | |
6) Garden landscaping, | |
7) Soilless culture | |
8) Ornamental stone |
5.Size of Volcanic Stone
Size |
3-5mm |
5-10mm |
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10-20mm |
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20-30mm |
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30-40mm |
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30-50mm |
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50-100mm |