| 浅谈沥青的针入度指数 |
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| 引用本文： | 吴惠霞.浅谈沥青的针入度指数[J].石油沥青,2008,22(5):68-71. |
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| 作者姓名： | 吴惠霞 |
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| 作者单位： | 冀东油田开发技术公司化验中心,河北,063200 |
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| 摘 要： | 选用不同温度下的针入度回归计算针入度指数（PI）来表征沥青的感温性，由于PI的直接误差来源为针入度，因此不仅分析了沥青针入度测定过程可能影响沥青针入度结果的因素，而且进一步分析了针入度试验误差、计算PI的针入度一温度点数、所选测定针入度的温度范围对PI的影响。结果发现，影响PI的因素较多，而沥青的组成及结构对各因素的影响不容忽视。
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| 关 键 词： | 感温性 针入度指数 影响因素 |
About the penetration index of asphalt |
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| Wu Hui-xia.About the penetration index of asphalt[J].Petroleum Asphalt,2008,22(5):68-71. |
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| Authors: | Wu Hui-xia |
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| Affiliation: | Wu Huixia( Jidong Oil Field ,Hebei 063200, China) |
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| Abstract: | Penetration Index （PI） value regressed based on the penetration results with different / temperature according to Chinese specification. It is found that the PI value is sensitive to the penetration error, to the determining number of temperature--penetration for PI, to the temperature scope for PI. And the PI value is affected by many facters rather than asphalt itself. |
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| Keywords: | Temperature suspectibility Penetration index Influence factor |
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