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含生物助熔剂添加剂的泡沫聚合物改性沥青的老化评价

Ageing Evaluation of Foamed Polymer Modified Bitumen with Bio-Flux Additive.

作者信息

Radziszewski Piotr, Liphardt Adam, Sarnowski Michał, Kowalski Karol J, Pokorski Piotr, Konieczna Katarzyna, Król Jan B, Iwański Marek, Chomicz-Kowalska Anna, Maciejewski Krzysztof, Iwański Mateusz M, Michalec Maciej

机构信息

Institute of Road and Bridges, Faculty of Civil Engineering, Warsaw University of Technology, 00-637 Warsaw, Poland.

Department of Transportation Engineering, Faculty of Civil Engineering and Architecture, Kielce University of Technology, 25-314 Kielce, Poland.

出版信息

Materials (Basel). 2023 Mar 8;16(6):2167. doi: 10.3390/ma16062167.

DOI:10.3390/ma16062167
PMID:36984047
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC10058058/
Abstract

This paper presents the results of an analysis of the changes in the stiffness of asphalt binders modified with a bio-flux additive and subjected to the processes of foaming and short-term ageing. The purpose of the analyses was to determine changes in the rheological properties of asphalt binder as a result of technological processes characteristic of hot and warm mix asphalt technology. Three asphalt binders with similar penetration but varying degrees of polymer modification were tested: 50/70, 45/80-55 polymer-modified bitumen, and 45/80-80 highly modified bitumen. Tests were carried out on four groups of binders: original binders, foamed binders after 14 days of storage, non-foamed binders after Rolling Thin Film Oven Test (RTFOT) ageing, and foamed binders after 14 days of storage subjected to RTFOT ageing. The master curves of the complex shear modulus G* were analysed, and three indexes of binder stiffening were determined, characterising the investigated effects. The tests showed that some of the stiffening indices significantly depended on the degree of polymer modification and the content of the bio-flux additive. Moreover, it was found that the foaming process in the case of paving-grade bitumen and polymer-modified bitumen did not contribute to the additional stiffening of the binders.

摘要

本文介绍了对添加生物通量添加剂并经过发泡和短期老化过程的沥青结合料刚度变化的分析结果。分析的目的是确定由于热拌沥青和温拌沥青技术的典型工艺过程导致的沥青结合料流变性能变化。测试了三种针入度相似但聚合物改性程度不同的沥青结合料：50/70、45/80 - 55聚合物改性沥青和45/80 - 80高改性沥青。对四组结合料进行了测试：原始结合料、储存14天后的发泡结合料、旋转薄膜烘箱试验（RTFOT）老化后的未发泡结合料以及储存14天后经过RTFOT老化的发泡结合料。分析了复数剪切模量G*的主曲线，并确定了表征所研究效果的三种结合料硬化指数。测试表明，一些硬化指数显著取决于聚合物改性程度和生物通量添加剂的含量。此外，还发现对于铺路级沥青和聚合物改性沥青，发泡过程不会导致结合料额外硬化。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2ca4/10058058/9c6829b0cbdc/materials-16-02167-g009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2ca4/10058058/4e634ac04c52/materials-16-02167-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2ca4/10058058/76a92e06913d/materials-16-02167-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2ca4/10058058/d500e251ae70/materials-16-02167-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2ca4/10058058/10f6b7582c51/materials-16-02167-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2ca4/10058058/c29fa2d46f0b/materials-16-02167-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2ca4/10058058/0c7109bfbb76/materials-16-02167-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2ca4/10058058/fb08f42a1357/materials-16-02167-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2ca4/10058058/e34e6f5a1fd9/materials-16-02167-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2ca4/10058058/9c6829b0cbdc/materials-16-02167-g009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2ca4/10058058/4e634ac04c52/materials-16-02167-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2ca4/10058058/76a92e06913d/materials-16-02167-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2ca4/10058058/d500e251ae70/materials-16-02167-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2ca4/10058058/10f6b7582c51/materials-16-02167-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2ca4/10058058/c29fa2d46f0b/materials-16-02167-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2ca4/10058058/0c7109bfbb76/materials-16-02167-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2ca4/10058058/fb08f42a1357/materials-16-02167-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2ca4/10058058/e34e6f5a1fd9/materials-16-02167-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2ca4/10058058/9c6829b0cbdc/materials-16-02167-g009.jpg

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Materials (Basel). 2022 Feb 26;15(5):1775. doi: 10.3390/ma15051775.
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Foaming Performance and FTIR Spectrometric Analysis of Foamed Bituminous Binders Intended for Surface Courses.用于表面层的泡沫沥青结合料的发泡性能及傅里叶变换红外光谱分析
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