Crushed rock | Article about crushed rock by The Free ...
Crushed Rock. Type 2505 crushed rock (density 2.097 g/ [cm.sup.3]), as classified by Japanese Industrial Standards (JIS) A5005-1988, was packed into the boreholes; this is commonly used in concrete in Japan (Figure 3). As stated in their ASTM standards, standard and modified Proctor tests are not applicable for gravels and crushed rock.