Lava Stone
About .Size:
1-3mm,3-5mm,5-7mm,7-10mm,5-10mm...
About Color:
Red, Black ,
About element content
Element |
SiO2 |
CaO |
MgO |
Fe2O3 |
FeO |
Al2O3 |
TiO2 |
K2O |
Na2O |
Content% |
53.82 |
8.36 |
2.46 |
9.08 |
1.12 |
16.89 |
0.06 |
2.30 |
2.55 |
About Physical properties:
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) |
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