集料类型对沥青-集料粘附性的影响及其定量表征

Effect of Aggregate Type on Asphalt-Aggregate Adhesion and Its Quantitative Characterization.

作者信息

Chen Liuxiao, Li Junlin, Xiang Hao, Zhang Jun, Feng Enlin, Kong Lin

机构信息

Shock and Vibration of Engineering Materials and Structures Key Laboratory of Sichuan Province, Southwest University of Science and Technology, Mianyang 621010, China.

College of Civil Engineering and Architecture, Southwest University of Science and Technology, Mianyang 621010, China.

出版信息

Materials (Basel). 2025 Aug 6;18(15):3696. doi: 10.3390/ma18153696.

DOI:10.3390/ma18153696

PMID:40805573

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC12348592/

Abstract

To study the effect of aggregate type on the adhesion between asphalt and aggregate, limestone, basalt, diabase, and 70# asphalt with SBS asphalt were selected. The mineral phase composition of the aggregates was analyzed by X-ray diffraction. The surface energy theory was used to calculate the adhesion work and the work of flaking. The modified water boiling method combined with image processing technology was used to quantitatively characterize the flaking behavior of the asphalt. The results show that the aggregate type is closely related to the asphalt-aggregate adhesion. The mineral compositions of different types of aggregates vary significantly, with limestone, being a strongly alkaline aggregate predominantly comprising CaCO, exhibiting better adhesion with asphalt. The contact angle test and modified boiling method also yielded the same results, and the adhesion relationship with asphalt was limestone > basalt > diabase. Image processing technology effectively characterizes the spalling situation of asphalt and conducts quantitative analysis.

摘要

为研究集料类型对沥青与集料粘附性的影响，选用了石灰岩、玄武岩、辉绿岩以及70#沥青和SBS改性沥青。采用X射线衍射分析集料的矿物相组成。运用表面能理论计算粘附功和剥落功。采用改进的水煮法结合图像处理技术定量表征沥青的剥落行为。结果表明，集料类型与沥青-集料粘附性密切相关。不同类型集料的矿物组成差异显著，石灰岩作为主要成分为CaCO的强碱性集料，与沥青的粘附性较好。接触角试验和改进水煮法也得到了相同结果，与沥青的粘附性关系为石灰岩＞玄武岩＞辉绿岩。图像处理技术有效表征了沥青的剥落情况并进行了定量分析。