Investigation of the Performance of Ceramic Fiber Modified Asphalt Mixture

Abstract

Ceramic fiber (CF) is a novel thermally resistant material with the potential to improve the high-temperature performance of asphalt mixture. In this study, asphalt mixtures with 0%, 0.1%, 0.2%, 0.3%, 0.4%, and 0.5% CFs were prepared. The Marshall test, wheel tracking test, Marshall immersion test, freeze-thaw splitting test, and low-temperature bending test were conducted to evaluate the performance of the CF-modified asphalt mixture. The morphologies of these asphalt mixtures were observed using scanning electron microscopy to analyze the modification mechanism. The results showed that the CFs could improve the mechanical properties, high-temperature stability, moisture susceptibility, and low-temperature cracking resistance of asphalt mixture, with the optimum CF content being 0.4%. Further microscopic analysis showed that the CFs improved the performances of asphalt mixture through forming three-dimensional network structure, asphalt absorption, bridging cracks, and pulling-out effect.

Evaluation of Moisture Damage Potential in Hot Mix Asphalt Using Polymeric Aggregate Treatment

“…A possible explanation for this phenomenon can be explained in terms of surface free energy. As explained by Wang et al [ 43 ], adding polymer to the aggregate mix tends to decrease the total surface free energy of the aggregate, hence improving the wettability of the binder over the coated aggregate. Yalghouzaghaj et al [ 44 ] proved that increasing the percentage of polymers reduces the surface free energy to the same level.…”

A Review of Morphological and Chemical Properties of Porous Asphalt

“…In addition, CF characteristic has been pointed out by author through Figure 1(b) which shows CF has the ability in distributing and transfering load from varies directions. Pressure exerted from the aggregates will cause CF to bend and friction will increase between CF and other materials which lead to prevention of relative slippage of aggregates [10]. On the hand, study reported by Wang et al [12] this paper studies on chopped basalt fibers in asphalt mixture as the author concluded that 0.3 % of chopped basalt added in the mixture of porous asphalt mixture will resulted to an enhancement of the asphalt mixture integrity and crack propagation hindering.…”

“…In some previous study, morphology, composition, and orientation are included in this electron-sample interaction to extrapolate information about exterior of the particles in details. From Wang et al [10] SEM was conducted with an additional of Ceramic Fiber (CF). As concluded by researcher, 0.4 % of asphalt mixture were added in the mixture will resulted towards improvement.…”

Uso de distintos tipos de fibras para mejorar las propiedades mecánicas de la mezcla asfáltica: Una revisión literaria

“…Así mismo, Morova y colaboradores mejoraron la misma característica usando fibra polimérica poliparafenileno tereftalamida bajo un contenido óptimo de 0,25% (Morova, et al, 2016). Además, Wang y colaboradores mostraron que otro posible modificador sintético a utilizar es la fibra de cerámica, debido a que mejoró sustancialmente las propiedades mecánicas, en comparación con las mezclas ordinarias (Wang, Zhou, Hu, Shen, y Dong, 2021).…”