文章通过严格的常规和长期水稳性试验检验，分析评价掺加不同种类填料和不同掺配比例对排水性沥青混合料的适用性。

Through stringent normal and long-period tests for water resistance, this paper analyzes the suitability of different kinds of fillers and different dosages used in drainage asphalt.

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试验表明，集料泥土污染对沥青混合料水稳性影响显著，沥青混合料的渗水临界空隙率为7.5%。

Tests show that clay in fine aggregate affected the water stability of asphalt mixture markedly; the permeable critical air void is 7.5?

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试验表明，集料泥土污染对沥青混合料水稳性影响显著，沥青混合料的渗水临界空隙率为7。

Tests show that clay in fine aggregate affected the water stability of asphalt mixture markedly; the permeable critical air void is 7.

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