The main raw materials of mobile crushing screens are rocks, ores, and solid construction waste resources. Mastering the characteristics of crushed materials allows us to be more confident in selecting equipment and maximize the efficiency of crushing and screening.
1.Rocks
Rock for sand making
Sedimentary rock | Metamorphic rock | Magmatic rock |
dolomite, limestone | marble, phyllite | granite, rhyolite |
malmstone, calcareous rock | slate, quartzite | olivinite, diabase |
shale | schist, gneiss | basalt, gabbro |
conglomerate, etc | … | andesite, diorite, etc |
The compressive strength of common rocks
Rock name | Compressive strength (Mpa) | Rock name | Compressive strength (Mpa) | Rock name | Compressive strength (Mpa) |
gabbro | 180-300 | diabase | 200-350 | shale | 10-100 |
granite | 100-250 | basalt | 150-300 | malmstone | 20-200 |
rhyolite | 180-300 | quartzite | 150-350 | conglomerate | 10-150 |
diorite | 100-250 | marble | 100-250 | slate | 60-200 |
andesite | 100-250 | gneiss | 50-200 | phyllite, schist | 10-100 |
dolomite | 80-250 | calcareous rock | 20-200 |
Because of its good hardness and stable chemical properties, rock is often used as high-quality building materials and concrete raw materials, and is widely used in construction, roads, highways, railways, engineering and other fields.