Abstract
Tourmaline modified asphalt (TMA) binders were prepared with different modifier types and contents in this research. The routine properties, rheological properties, and aging resistance were evaluated to research the function of tourmaline on the performances of asphalt binders. Test results show that the storage stability can be improved significantly by the smaller particle size and negative-ion treated surface of tourmaline modifier. It indicates that the stiffness and rutting-resistance of TMA binder can be enhanced significantly, and the elastic component of the viscoelastic characteristic can also be increased. Moreover, the complex viscosity and the Zero Shear Viscosity (ZSV) values of tourmaline modified asphalt are increased within the test frequency range, which results in the improvement of deformation resistance of tourmaline modified asphalt. When mixed with asphalt, the tourmaline modifier maintains a two-phase structure, which results in the good rheological property for tourmaline modified asphalt.
Highlights
A low-carbon economy has attracted more and more attention all over the world
Of each Tourmaline modified asphalt (TMA) gradually increases with the increase of the amount of modifier, which demonstrates the larger content of increases tourmaline,with the the
The storage stability of TMA binder was capable significantly improved by the smaller particle size and negative ions treated surface of the tourmaline modifier
Summary
A low-carbon economy has attracted more and more attention all over the world. Low-carbon engineering materials generally represent those engineering materials that can cut carbon dioxide emissions further. With the efforts of researchers, the scope of low carbon materials is expanding now. With the efforts of researchers, the scope of low carbon materials is expanding It usually means those kinds of materials which are capable of decreasing the carbon emissions as well as saving resources throughout the construction and service life [4]. Many researchers and engineers around the world are engaged in the research and development of advanced road materials, which can improve the performances and prolong the service life for asphalt pavement [5,6,7,8,9,10,11]
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