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泥炭微粒改性沥青的化学性质

Chemical properties of peat micro particles modified asphalt.

作者信息

Ali Ahmed Suliman B, Al Allam Allam Musbah, Ali Shaban Ismael Albrka, Isleem Haytham F, Babalghaith Ali Mohammed, Shaffie Ekarizan, Khishe Mohammad

机构信息

School of Civil Engineering, College of Engineering, Universiti Teknologi MARA , Shah Alam, 40450, Selangor, Malaysia.

Libyan Centre for Engineering Research and Information Technology Bani-Walid, Bani Walid, Libya.

出版信息

Sci Rep. 2024 Nov 6;14(1):26873. doi: 10.1038/s41598-024-78032-y.

DOI:10.1038/s41598-024-78032-y
PMID:39505958
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC11541959/
Abstract

This study investigated the chemical properties of peat microparticles modified asphalt (Pt.M.A.). The originality of the study resides in the examination of the chemical characteristics of peat microparticles (Pt.) modified asphalt (Pt. M.A.) utilising FTIR, SEM, SFE, and XRD methodologies. This encompasses Fourier transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM), surface free energy (SFE), and X-ray diffraction (XRD). Initially, FTIR examined the functional groups of both unaltered and altered asphalt binders. The SEM images reveal improved compatibility, showcasing superior diffusion of the modifier across the asphalt. A further critical factor is that improved adhesion properties, according to the SFE study, indicate that modified binders generally offer more SFE compared to unmodified binders. The XRD measurements revealed a semi-crystalline structure in the Pt. modifier and an amorphous structure in the basal asphalt binder. The integration of Pt. into the asphalt cement resulted in modifications to the phases of both constituents, culminating in the emergence of a new semi-crystalline phase inside the modified asphalt binder. These data suggest that peat microparticles (Pt.) can improve the efficacy of asphalt binders by enhancing compatibility, adhesion, and resistance to ageing.

摘要

本研究调查了泥炭微粒改性沥青（Pt.M.A.）的化学性质。该研究的独到之处在于利用傅里叶变换红外光谱（FTIR）、扫描电子显微镜（SEM）、表面自由能（SFE）和X射线衍射（XRD）方法来检测泥炭微粒（Pt.）改性沥青（Pt.M.A.）的化学特性。这包括傅里叶变换红外光谱（FTIR）、扫描电子显微镜（SEM）、表面自由能（SFE）和X射线衍射（XRD）。首先，FTIR检测了未改性和改性沥青结合料的官能团。SEM图像显示相容性得到改善，表明改性剂在沥青中的扩散性更佳。另一个关键因素是，根据SFE研究，改善的粘附性能表明改性结合料通常比未改性结合料具有更高的表面自由能。XRD测量结果显示，Pt.改性剂具有半结晶结构，而基础沥青结合料具有非晶结构。将Pt.融入沥青胶结料导致两种成分的相态发生改变，最终在改性沥青结合料内部出现了一种新的半结晶相。这些数据表明，泥炭微粒（Pt.）可以通过增强相容性、粘附性和抗老化性能来提高沥青结合料的效能。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5bd3/11541959/ac883f90f66c/41598_2024_78032_Fig13_HTML.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5bd3/11541959/e39bb278d98f/41598_2024_78032_Fig3_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5bd3/11541959/a62e84616437/41598_2024_78032_Fig4_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5bd3/11541959/6d72df040581/41598_2024_78032_Fig5_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5bd3/11541959/899b4e3023e5/41598_2024_78032_Fig6_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5bd3/11541959/72fabce9e8c5/41598_2024_78032_Fig7_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5bd3/11541959/4be26dc7db0c/41598_2024_78032_Fig8_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5bd3/11541959/367ec4a743fe/41598_2024_78032_Fig9_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5bd3/11541959/2f14e48f5c5c/41598_2024_78032_Fig10_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5bd3/11541959/c1b41a88b17f/41598_2024_78032_Fig11_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5bd3/11541959/d379128cc792/41598_2024_78032_Fig12_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5bd3/11541959/ac883f90f66c/41598_2024_78032_Fig13_HTML.jpg

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