pumice stone block is a functional kind of environmental protection material.
It is a kind of precious and polyporous stone, and formed by volcanic glass ,mineral and air bubble in the process of volcanic eruption.
It contains sodium, magnesium, aluminum, silicon, calcium, titanium, manganese, iron, nickel, cobalt, molybdenum, and other dozens of minerals and trace elements.
It has no radiation .
It has far infrared magnetic wave. Natural stone
Slide-proof, acid & alkali proof
Sound absorbing and insulation
SiO2 |
CaO |
MgO |
Fe2O3 |
FeO |
Al2O3 |
TiO2 |
K2O |
Na2O |
53.82% |
8.36% |
2.46% |
9.08% |
1.12% |
16.89% |
0.06% |
2.30% |
2.55% |
Volume-weight(kg/m3) |
430-870 |
Water absorption |
11.7-17.03% |
Loose volume-weight(kg/m3) |
520 |
Cylinder pressure strength |
1.218Mpa |
Moisture |
1% |
Mechanical Intensity |
5.08Mpa |
Heat conductivity coefficient w/(m.k) |
0.326 |
Soften coefficient |
0.84 |
Apparent density |
Kg/m 3 640-860/(390*240*190) |
Hollow ratio(%) |
48/(390 *240 *190) |
Add:Add:NO.78 BIYUN ZHONG LU,HONGTANG TOWN,TONG'AN DISTRICT,XIAMEN,CHINA
Tel:86-592-2219816/2225286
Fax:86-592-2222216
E-mail:stone@ninesun-stone.com sales@ninesun-stone.com