Microstructural characterisation and analysis of coarse aggregates in asphalt drill cores
Microstructural characterisation and analysis of coarse aggregates in asphalt drill cores
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沥青钻芯中粗骨料的微观结构表征与分析
DOI：
10.1080/14680629.2022.2164333
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发表时间：
2022
影响因子：
3.7
通讯作者：
Ressel
中科院分区：
文献类型：
--
作者：
Teutsch;Gönninger;Ressel
本文的研究主要集中在真实的沥青结构中粗集料（mm）的三维表征上。它基于微X射线计算机断层扫描（μXRCT）获得的三维图像。详细介绍了一种利用这些图像将集料与其他沥青混合料组分以及彼此之间分割的方法。随后，这些数据被转换成关于每个个体骨料的骨料大小、形式、结构和方向的基本数据。在该数据库上，计算基本参数和常用参数，以表征骨料性质。最后，对骨料的形状、棱角性、在岩芯中的位置和主要尺寸的对齐等参数进行了评价。结果表明，分割方法提供了相当精确的结果的聚集体。对这些基本参数的分析表明，骨料的定位是均匀分布的，但结构内部的取向行为取决于其形状特征。
The research presented in this paper is focused on the three-dimensional characterisation of coarse aggregates (mm) within real asphalt structures. It is based on three-dimensional images acquired by micro X-ray Computed Tomography (μXRCT). A method to segment the aggregates from the other asphalt mixture components and each other, using these images is presented in detail. Subsequently, they are converted into basic data on the aggregate size, form, structure and orientation of every individual aggregate. On this database, fundamental and generally used parameters are calculated to characterise the aggregate properties. Finally, the parameters are evaluated regarding the aggregate form, angularity, location within the drill core and alignment of its main dimension. The results show that the segmentation method delivers quite precise results about the aggregates. The analysis of those basic parameters points out that the aggregates' positioning is evenly distributed but the orientation behaviour inside the structure is dependent on their shape characteristics.
压实方向对碾压HMA试件性能特征的影响
DOI：
--
发表时间：
2013
期刊：
影响因子：
--
作者：
B. Hofko;R. Blab;A. Alisov
通讯作者：
A. Alisov
影响因子：
1.6
作者：
Ruf, Matthias;Steeb, Holger
通讯作者：
Steeb, Holger