沥青胶浆粘度及流变特性的影响因素研究

doi:10.11896/cldb.17090309

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Abstract Six kinds of asphalt mortar with five ratios of powder to binder were prepared by using AS-70# matrix asphalt, SBS modified asphalt and diorite, limestone. The influence rule of asphalt type, mineral type, ratio of powder to binder and temperature on the viscosity of asphalt mortar and the rheological properties of asphalt mortar at different temperature and shear rate were researched. The results show that, compared with limestone mineral powder, the asphalt mortar with diorite ore powder has greater viscosity. And under the same conditions, the viscosity of modified asphalt mortar is faster than that of matrix asphalt mortar. The viscosity-temperature variation of asphalt mortar presents the semi-logarithmic function rule and the viscosity-temperature sensitivity of the same asphalt is basically the same. When the temperature is low, the viscosity of asphalt mortar changes significantly with the ratio of powder to binder, and the bigger the ratio of powder to binder, the bigger the viscosity of asphalt mortar. The value of G^*/sinδ shows an exponential relationship with temperature and when the temperature reaches 70 ℃, the asphalt mortar loses its function. The effect of different shear rate on the viscosity of matrix asphalt mortar is not obvious, but the modified asphalt mortar gradually decreases with the increase of shear rate.

Key words： asphalt mortar viscosity rheological ratio of powder to binder

Published: 19 June 2019

CLC number:

U414

Fund:This work was financially supported by the National Natural Science Foundation of China (51468047), the Inner Mongolia Natural Science Foundation Project(2015MS523,2016MS0531), the Inner Mongolia Transportation Department Transportation Technology Project (NJ2012-10).

About author:: Hong Zhangreceived his Ph.D. degree in road and railway engineering from Tongji University in 2011. He is currently a professor and a master tutor at the School of Transportation, Inner Mongolia University. The main research directions are road engineering and environmental geotechnical in cold and arid areas, as well as service performance of roadbed and pavement materials.

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	ZHANG Hong
	LIU Xin
	QIAO Zhi

Cite this article:

ZHANG Hong,LIU Xin,QIAO Zhi. Research on Viscosity and Rheological Properties of Asphalt Mortar[J]. Materials Reports, 2019, 33(14): 2381-2385.

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http://www.mater-rep.com/EN/10.11896/cldb.17090309 OR http://www.mater-rep.com/EN/Y2019/V33/I14/2381

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