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

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。

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

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%。

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