Gravel digging and processing - Praxis Engineering
Gravel in road construction. The foundation layer of a road and the roadway surface, as well as railway ballast are made of gravel and ballast stone of coherent rock (with mean compression capacity from 200 to 300 MPa), such as granite, diorite, ragstone, porphyrite, silicified limestone, etc. Road surface sections with maximum load are made exclusively of the most coherent …
