首页|Investigate of performance of asphalt concrete with gneiss
Investigate of performance of asphalt concrete with gneiss
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The use of gneiss as aggregates might help meet the pavement constructing demands. However, the study of the pavement performances of gneiss asphalt mixture is few. In this paper, the microstructure of gneiss aggregate was studied by Scanning Electron Microscopy (SEM). And the pavement performances of gneiss asphalt mixture with different improving measure were characterized by means of Indirect Tensile Strength Test and Four-Point Bending Fatigue Test. Gneiss is flaky, surface texture rougher and imporosity characteristic in microstructure, resulting to its adhesion and processing property are poor. Experiment results indicate that the use of hydrated lime replacing limestone power partly in filler can improve pavement properties of the gneiss asphalt mixtures distinctly.
gneissmicrostructureasphalt mixturefatigue
Ling PANG、Shaopeng WU、Jun XIE、Deming HU
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Science of school (Wuhan University of Technology), Ministry of Education, Wuhan 430070, China
Key Laboratory of Silicate Materials Science and Engineering (Wuhan University of Technology), Ministry of Education, Wuhan 430070, China
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