Research Article
Study on Permeability and Blocking Resistance of Composite Specimen with Double-Layer Permeable Asphalt Mixture
Table 7
Statistical pore characteristics in composite specimens.
| | Specimen type | Porosity (%) | Number of pores (a) | Total area of pores (mm2) | Average single pore area (mm2) | Equivalent diameter (mm) | Quantity ratio of pore area less than 0.09 mm2 |
| | (20% + 22%)-1 | 19.82 | 618 | 1290.0025 | 4.06 | 2.27 | 15.0 | | (20% + 22%)-2 | 12.26 | 526 | 782.1613 | 2.4 | 1.74 | 20.0 | | Average value | 16.04 | 572 | 1036.0819 | 3.23 | 2.005 | 17.5 | | (22% + 22%)-1 | 16.64 | 619 | 1046.7975 | 1.69 | 1.46 | 48.7 | | (22% + 22%)-2 | 21.43 | 1049 | 1530.9850 | 1.46 | 1.36 | 30.3 | | Average value | 19.035 | 818 | 1288.8913 | 1.575 | 1.41 | 39.5 | | (24% + 22%)-1 | 24.99 | 842 | 1785.3025 | 2.12 | 1.64 | 18.9 | | (24% + 22%)-2 | 21.59 | 1282 | 1537.8113 | 1.20 | 1.24 | 31.3 | | Average value | 23.29 | 1001 | 1661.5569 | 1.66 | 1.44 | 25.1 |
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