| 沥青针入度随TPS高粘剂掺量变化曲线 |
| 添加时间：2019/10/29 14:45:46 浏览次数： |
| 在研究TPS不同剂量的改性效果时，选用了针入度、软化点、延度、弹性恢复、黏度等指标进行试验，TPS高粘剂掺量为沥青质量的百分比。这是因为这些指标不仅是高黏度改性沥青的基本指标，而且这些指标的测试结果有较强的可比性。 In the study of the modification effect of TPS with different dosage, penetration, softening point, ductility, elastic recovery, viscosity and other indexes were selected for the test. The content of TPS high viscosity agent is the percentage of asphalt quality. This is because these indicators are not only the basic indicators of high viscosity modified asphalt, but also the test results of these indicators have strong comparability. 1）沥青25℃针入度随着TPS掺量的增加呈现下降的趋势，最终呈现稳定趋势； 1) the penetration of asphalt at 25 ℃ decreased with the increase of TPS content, and finally showed a stable trend. 2）掺加TPS改性剂后，沥青针入度下降的速率与原始沥青的针入度有关，原始沥青的针入度越大，针入度下降速率越大，3者排序：90#A级沥青＞70#A级沥青＞SBSI-D沥青； 2) after adding TPS modifier, the decrease rate of penetration is related to the penetration of the original asphalt. The higher the penetration of the original asphalt is, the greater the decrease rate of penetration is. The order of the three is: 90 × a asphalt > 70 × a asphalt > sbsi-d asphalt. 3）对每种沥青而言，改性剂剂量增加到一定程度后，25℃针入度基本维持在40（0．1mm）左右。 3) for each kind of asphalt, the penetration at 25 ℃ was maintained at about 40 (0.1mm) after the dosage of modifier was increased to a certain extent. |
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