| 粒度幅 |
呼称粒度 |
D50 |
SD |
| 0-0.5 |
0.25 |
0.20-0.35 |
<0.15 |
| 0-1 |
0.5 |
0.35-0.55 |
<0.25 |
| 0-2 |
1 |
0.85-1.15 |
<0.25 |
| 1-3 |
2 |
1.45-2.15 |
<0.60 |
| 2-4 |
3 |
2.20-3.50 |
<0.85 |
| 2-6 |
4 |
3.50-4.00 |
<1.50 |
| 3-7 |
5 |
4.00-4.50 |
<1.50 |
| 4-8 |
6 |
4.50-6.20 |
<1.70 |
| 6-12 |
9 |
6.30-9.20 |
<3.00 |
| 8-16 |
12 |
9.00-12.0 |
<4.00 |
| 10-20 |
15 |
12.0-16.0 |
<4.00 |
| 15-25 |
20 |
13.2-18.5 |
<4.00 |
|
|
|
| 粒度幅 |
呼称粒度 |
D50 |
SD |
| 0-0.05 |
0.025 |
-0.07 |
<0.050 |
| 0-0.1 |
0.05 |
0.07-0.10 |
<0.060 |
| 0-0.2 |
0.1 |
0.10-0.15 |
<0.075 |
| 0-0.25 |
0.125 |
0.15-0.23 |
<0.095 |
| 0.1-0.5 |
0.25 |
0.23-0.31 |
<0.130 |
| 0.25-0.75 |
0.5 |
0.31-0.45 |
<0.250 |
| 0.5-1 |
0.75 |
0.45-0.70 |
<0.250 |
| 0.5-1.5 |
1 |
0.70-1.10 |
<0.250 |
| 1-2 |
1.5 |
1.10-1.30 |
<0.350 |
| 1.25-2.25 |
2 |
1.30-1.50 |
<0.350 |
| 1.5-3.5 |
2.5 |
1.50-2.20 |
<0.550 |
| 2.25-3.75 |
3 |
2.20-2.60 |
<0.650 |
| 3-5 |
4 |
3.20-3.60 |
<0.950 |
| 4-6 |
5 |
3.60-4.40 |
<1.25 |
| 6-10 |
8 |
6.00-8.20 |
<2.00 |
| 8-12 |
10 |
8.20-10.5 |
<4.00 |
|
|
