Lava stone is formed when the lava stream flows and cools down with the air remains and becomes small holes in the final rock. Lava stone owe the special features such as sound absorbing and insulation,heat absorbing and preservation,water absorbi
Micro particles: Focusing on "micro-environment regulation", it is suitable for scenarios that require improvement, filtration, and fine filling (such as potted plants and filter materials).
Medium and coarse particles: Balancing "function and landscape", suitable for outdoor engineering, ecological restoration, and medium-sized landscaping (such as trails, drainage layers).
Large particles: Emphasizing "structure and shape", they are suitable for large-scale infrastructure, heavy supports, and rough landscapes (such as rockeries and retaining walls).
◆ Lava stone is formed when the lava stream flows and cools down with the air remains and becomes small holes in the final rock. Lava stone owe the special features such as sound absorbing and insulation,heat absorbing and preservation,water absorbing and slide –proof,acid & alkali proof ,“breathing function”.
Features:
1) not radiation
2) not permeation
3) not poisonous and not odor
4) green and environmental-protection products with high quality
5) hyperfine and with high quality products
6) be used in interior decoration,outside decoration and paving public square .
Application:
1) It is called as functional stone which can be used safely in any place for its low, radiation,wind erosion –proof and durability,sound absorbing and noise lowering,water absorbing and air humidity keeping,dizzy light avoiding,etc to improving our environment and feelings,
2) Therefore,this volcanic stone material can be used widely in outer wall decoration,such as road ,square paving ,living distract gardening,etc to meet our needs of nature,primitiveness,simplicity,classicalism,
3)We can supply various kinds of finished volcanic stones with differently treated surfaces,such as honed ,polished,bush hammered ,etc.with all kinds of shapes and thickness.
◆Volcanic filter material mainly used for water treatment, with irregular partical shape, dark brown or beige color , porosity mass. The particle size we offer are 325 mesh,50-100 mesh,30-50 mesh,1-3mm,2-4mm,3-6mm,5-10mm,1-2cm,2-3cm,3-5cm,5-8cm,10-20cm,20-40cm, etcor according to customer’s requirement.
Technical indicators
| index | Unit | Test result | Index | Unit | Test result |
| Volume weight | Kg/m3 | 740 | Surface acreage | m2/g | 13.6-25.5 |
| Density | __ | 1:1.29 | Compression strengh | Mpa | 5.08 |
| Water content | % | 0.9-1.0 | Shear strengh | Mpa | 3.98 |
| Porosity | % | 73-82 | Friction loss rate | % | ﹤1 |
| Organic matter removing | % | ﹥80 | membrane-forming time | hour | 27 |
| COD removing | % | ﹥85 | HCL soluble | % | ﹥801.0 |
| BOD removing | % | 75-93 | NH4,N2 removing | % | ﹥85 |
is formed when the lava stream flows and cools down with the air remains and becomes small holes in the final rock. Lava stone owe the special features such as sound absorbing and insulation,heat absorbing and preservation,water absorbing and slide –proof,acid & alkali proof ,“breathing function”.
The tiny particles of black volcanic stone are a kind of natural porous rock material, mainly compos
is formed when the lava stream flows and cools down with the air remains and becomes small holes in the final rock. Lava stone owe the special features such as sound absorbing and insulation,heat absorbing and preservation,water absorbing and slide –proof,acid & alkali proof ,“breathing function”.
Lava stone is formed when the lava stream flows and cools down with the air remains and becomes small holes in the final rock. Lava stone owe the special features such as sound absorbing and insulation,heat absorbing and preservation,water absorbi
Lava stone is formed when the lava stream flows and cools down with the air remains and becomes small holes in the final rock. Lava stone owe the special features such as sound absorbing and insulation,heat absorbing and preservation,water absorbing and slide –proof,acid & alkali proof .
