High-Performance Semi-Flexible Pavement Coating Material with the Microscopic Interface Optimization
Source abstract
Abstract
This paper aims to optimize the asphalt-mortar interface characteristics of semi-flexible pavement coating material (SFPCM), three types of the interface modifiers, namely the silane coupling agent, carboxylated styrene-butadiene latex, and cationic emulsified asphalt, are selected to add into the cement mortar to optimize the asphalt-mortar interface. The microscopic characteristics of the asphalt-mortar interface and the macroscopic pavement performance of the SFPCM after the interface optimization are investigated to reveal the effect of interface modifiers and determine the best formula. Results show that: (1) The dry shrinkage of the cement mortar is increased with the increased dosage of the interface modifiers, while the strength is decreased accordingly; (2) the optimum dosages of the silane coupling agent, carboxylated styrene butadiene latex, and cationic emulsified asphalt are 0.5%, 10%, and 5%, respectively; (3) the microscopic asphalt-mortar interface characteristics of the SFPCM with different interface modifiers have significant differences; (4) the SFPCM with the cationic emulsified asphalt presents the best pavement performance, particularly the high-temperature stability. These results can be attributed to improve the pavement properties of SFPCM.
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Research context
OpenAlex topics: Asphalt Pavement Performance Evaluation · Concrete and Cement Materials Research · Polymer Nanocomposites and Properties
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
School of Highway, Chang’an University, Xi’an 710064, China
Zhejiang Scientific Research Institute of Transport, Hangzhou 310039, China
School of Civil Engineering and Architecture; Hubei University of Arts and Science, Xiangyang 441053, China
Jiashan Highway Administration, Jiashan 314100, China
Funding
Natural Science Foundation of Zhejiang Province · the Highway Technology Projects of Zhejiang Province · the Scientific Research of Central Colleges of China for Chang'an University · the Doctoral Research Foundation of Hubei University of Arts and Science
References (26)
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