用Sasobit改性沥青粘结剂主曲线法预测PAV老化沥青粘结剂复合模量

IF 1 Q4 ENGINEERING, CIVIL

Jordan Journal of Civil Engineering Pub Date : 2016-07-01 DOI:10.14525/JJCE.10.3.3610

Khalid A. Ghuzlan, M. A. Assi

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引用次数: 3

摘要

研究了沥青粘结剂在不同温度和不同加载频率下的复合模量。采用主曲线法，应用时间-温度叠加原理，对加入不同比例sasobit沥青改性剂的压力老化容器(PAV)老化沥青粘结剂进行了大范围温度和加载频率下的性能预测。采用动态剪切流变仪(DSR)，在较宽的加载频率(0.1 Hz ~ 10 Hz)和较宽的温度范围(16℃~ 31℃)下测量了复合模量。结果表明，随着加载频率的增加和sasobit百分比的增加，复合模量有所增加。结果表明，随着温度的升高，复合模量呈下降趋势。主曲线法在预测沥青粘结剂复合模量方面具有较高的准确性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Predicting the Complex Modulus for PAV Aged Asphalt Binder Using a Master Curve Approach for Sasobit Modified Asphalt Binder

This study is focused on the prediction of the asphalt binder complex modulus at various temperatures and various loading frequencies. The master curve approach was used to predict the asphalt binder behavior for a wide range of temperatures and loading frequencies by applying the time-temperature superposition principle for pressure ageing vessel (PAV) aged asphalt binder mixed with different percentages of sasobit asphalt modifier. The complex modulus was measured using the dynamic shear rheometer (DSR) with a wide range of loading frequencies (0.1 Hz-10 Hz) and a wide range of testing temperatures (16 C-31 C). The results showed an increase in the complex modulus with increasing the loading frequency as well as with increasing the sasobit percentage. However, the results showed a decrease in the complex modulus with increasing the testing temperature. The use of the master curve approach showed a high degree of accuracy in predicting the complex modulus for the asphalt binder.

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来源期刊

Jordan Journal of Civil Engineering ENGINEERING, CIVIL-

CiteScore

2.10

自引率

27.30%

发文量

期刊介绍： I am very pleased and honored to be appointed as an Editor-in-Chief of the Jordan Journal of Civil Engineering which enjoys an excellent reputation, both locally and internationally. Since development is the essence of life, I hope to continue developing this distinguished Journal, building on the effort of all the Editors-in-Chief and Editorial Board Members as well as Advisory Boards of the Journal since its establishment about a decade ago. I will do my best to focus on publishing high quality diverse articles and move forward in the indexing issue of the Journal.