Use of GPC Chromatograms to Characterize Aged Asphalt Cements
Use of GPC Chromatograms to Characterize Aged Asphalt Cements
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DOI：
10.1061/(asce)0899-1561(1993)5:1(41
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发表时间：
1993-02
影响因子：
3.2
通讯作者：
Kwang W. Kim;J. Burati
中科院分区：
文献类型：
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作者：
Kwang W. Kim;J. Burati
本研究试图找出物理性质与色谱图之间的相关性，定义基于色谱图的沥青胶结料的特性，并确定GPC分析是否可以反映老化的影响。详细的实验过程进行了描述，并提出和讨论的研究结果。结果表明，人工老化使水泥沥青的物理性质发生了显著变化，继续老化会导致水泥沥青的粘度和硬度增加。模型被用来estasblished之间的关系粘度和针入度和沥青水泥的分子尺寸分布。该模型证明了使用GPC分析来表征沥青水泥、预测物理性质和识别沥青水泥老化的普遍适用性。
This study attempted to find correlations between physical properties and chromatograms, define characteristics of asphalt cements based on chromatograms, and determine whether GPC analysis could reflect the effects of aging. The details of the experimental procedure are described, and the research results are presented and discussed. It was found that physical properties of asphalt cement were significatnly changed by artificial aging, and increasing viscosity and hardness resulted from continued artificial aging. Models were used that estasblished relationships betwen viscosity and penetration and the molecular-size distrubution of asphalt cements. The models demonstrated the general applicability of using GPC analysis to characterize asphalt cements, predict physical properties, and identify the aging of asphalt cements.