Characteristics of Ceramic Fiber Modified Asphalt Mortar.

Jiuming Wan,Erik Schlangen,Shaopeng Wu,Quantao Liu,Yue Xiao

doi:10.3390/ma9090788

Jiuming Wan, Erik Schlangen + Show 3 more

Open Access

https://doi.org/10.3390/ma9090788

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Abstract

Ceramic fiber, with a major composition of Al2O3 and SiO2, has advantages of stability at relatively high temperature, big specific surface area and resistance to external mechanical vibration. It has the potential contribution of improving the rutting resistance and temperature sensitivity of modified asphalt binder by proper modification design. In this research, ceramic fiber was introduced into both pen 60/80 and pen 80/100 asphalt binder by different weight ratios. An asphalt penetration test, softening point test, ductility test and dynamic viscoelastic behavior were conducted to characterize and predict the ceramic fiber modified asphalt mortar (CFAM). Research results indicated that the ceramic fiber has a great effect on reinforcement of asphalt, which makes the asphalt stiffer so that the asphalt can only undertake less strain under the same stress. The heat insulation effect of the ceramic fiber will improve the temperature stability. Complex modulus and phase angle results indicate that the ceramic fiber can significantly enhance the high temperature resistance of soft binder.

Highlights

Asphalt is the basic material of asphalt pavement, which has been used as universal pavement material on high-class pavement [1]
This study focused on the fundamental properties of ceramic fiber modified asphalt mortar
From the research results of ceramic fiber modified asphalt binder that were discussed in this research, the following items can be concluded: From the results of ceramic fiber modified binder discussed in this

Summary

Introduction

Asphalt is the basic material of asphalt pavement, which has been used as universal pavement material on high-class pavement [1]. Asphalt pavement is generally considered to have the following advantages: high driving comfort, obvious noise reduction, resistance to skidding. High temperature rutting [2,3,4] and low temperature brittle fracture [5,6,7] occur frequently during pavement service life. The major cause of these distresses is the temperature sensitivity of asphalt binder, especially under repeated heavy load from vehicles. Plenty of research has been conducted to develop asphalt mixture and asphalt binder with enhanced temperature resistance, such as polymer modified asphalt, fiber reinforced asphalt concrete (FRAC) and fiber modified asphalt binder [1,8,9,10]. Fiber modification is attracting a growing amount of attention for its potential improving effects

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Results

Conclusion