空隙率/%

坡度/%

AC-13

SMA-13

2.0

≥7.1

≥5.1

2.5

≥6.8

≥4.9

3.0

≥6.5

≥4.7

3.5

≥6.3

≥4.6

4.0

≥6.0

≥4.4