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改性沥青混合料的拌和与压实温度

, PP. 40-44

Keywords: 道路工程,改性沥青混合料,试验研究,拌和与压实温度,黏度,剪切速率

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Abstract:

?根据改性沥青混合料取得最佳压实效果的温度、黏度与剪切速率的关系,通过试验研究,得到较佳的改性沥青测黏剪切速率为60s-1;在该剪切速率下,测试不同温度下改性沥青的黏度,得到改性沥青的黏度-温度曲线;再按拌和黏度(0.17±0.02)Pa·s和压实黏度(0.28±0.03)Pa·s确定改性沥青的拌和与压实温度。结果表明:由该方法确定的改性沥青混合料的拌和与压实温度是合理的。

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