AASHTO Standard
Type No. |
Diameter (μm) Particle size |
Standard Retain (%) Quality percentage |
No.Ⅰ |
>850 |
0 |
850~600 |
5~25 |
|
600~300 |
40~80 |
|
300~150 |
10~35 |
|
<150 |
0~5 |
|
No.Ⅱ |
>600 |
0 |
600~425 |
0~5 |
|
425~300 |
20~50 |
|
300~180 |
45~75 |
|
<180 |
0 |