Establishment of Complex Modulus Master Curves Based on Generalized Sigmoidal Model for Freeze–Thaw Resistance Evaluation of Basalt Fiber-Modified Asphalt Mixtures

Abstract

This study aims to study the freeze–thaw (F–T) resistance of asphalt mixture incorporating styrene–butadiene–styrene (SBS) polymer and basalt fiber by using the established complex master curves of the generalized Sigmoidal model. Asphalt mixture samples incorporating styrene–butadiene–styrene (SBS) polymer and basalt fiber were manufactured following the Superpave gyratory compaction (SGC) method and coring as well as sawing. After 0–21 F–T cycles processing, a complex modulus test asphalt mixture specimen was performed to evaluate the influence of the F–T cycle. Besides, according to the time–temperature superposition principle, the master curves of a complex modulus were constructed to reflect the dynamic mechanical response in an extended range of reduced frequency at an arbitrary temperature. The results indicated that the elastic and viscous portions of asphalt mixture incorporating SBS and basalt fiber have decreased overall. It could be observed from the dynamic modulus ratio that the dynamic modulus ratios of specimens were more affected by the F–T cycle at low frequency or high temperature. Thus, in the process of asphalt pavement design and maintenance, attention should be paid to seasonal frozen asphalt pavement under low frequency and high temperature.

Experimental Characterization of Viscoelastic Behaviors of Nano-TiO2/CaCO3 Modified Asphalt and Asphalt Mixture

“…Based on the traditional Williams-Landel-Ferry (WLF) equation, the shift factor ( α T ) can be obtained as shown in the Equation (6) [ 48 , 50 ]. in which p 1 and p 2 represent fitted terms, T 0 is the reference temperature.…”

“…Based on this, the measured dynamic modulus of bituminous mixture in dynamic modulus test at various test conditions can be converted into the values at the reference temperature using the shift factor, thereby forming a smooth master curve of dynamic modulus. Therefore, the viscoelastic behavior of bituminous concretes in a larger temperature and frequency interval would be forecasted according to the master curve of dynamic modulus [ 48 , 50 ].…”

“…Dynamic mechanical analysis has been used in the past to investigate the viscoelastic properties of bituminous concretes. Dynamic modulus test is one of the most common procedures for determining the dynamic modulus of bituminous mixture [ 48 , 49 ]. In this paper, the dynamic modulus experiment was carried out for three replicate specimens at different experimental conditions, the detailed test program is shown in Table 4 and Table 5 .…”

Laboratory Evaluation of Rheological Properties of Asphalt Binder Modified by Nano‐TiO2/CaCO3

“…e resulting damage will reduce the service performance of bituminous flexible materials, such as rutting, cracks, and other damage phenomena [2,[14][15][16][17][18].…”

Freeze‐Thaw Performance of Silt Sand Treated with Lignin

“…Due to differences in soil compactness and water content, the formation of ice crystals often causes uneven frost heave of the subgrade, which can damage the asphalt mixture pavement. erefore, mechanical properties tests of asphalt mixture under freeze-thaw cycles are often carried out in cold regions [1][2][3]. During the thawing period, frost damage is even more severe in subsoil that have undergone severe freezing.…”