Research on High- and Low-Temperature Characteristics of Bitumen Blended with Waste Eggshell Powder

Abstract

The sustainability of resources is presently a major global concern. Sustainable construction materials can be produced by applying biological waste to engineering. Eggshells, as biological waste, are usually dumped in landfills or discarded. This causes many environmental problems including malodor, noise pollution, and serious waste of resources. To solve these problems, this study combined eggshell waste with bitumen materials for bio-roads construction. This paper investigated the impact of biological waste eggshell powder on the high- and low-temperature characteristics of bitumen materials. Scanning electron microscopy (SEM) revealed the microstructure of eggshell powder. The interaction between eggshell powder and asphalt was analyzed using Fourier transform infrared spectroscopy (FT-IR). The high- and low-temperature characteristics were investigated using conventional performance tests, and dynamic shear rheometer (DSR) and bending beam rheometer (BBR) experiments. These results indicate that eggshell powder (1) has a rough and porous microstructure; (2) has no apparent chemical reaction with asphalt; and (3) improves the consistency, hardness, and high-temperature characteristics. However, it reduces the plastic deformation capacity of asphalt, and the low-temperature crack resistance of asphalt cannot be improved. The research demonstrated that the application of eggshell powder in asphalt is feasible and has long-term resource and environmental advantages.

Evaluation on the Performance of Hydraulic Bitumen Binders under High and Low Temperatures for Pumped Storage Power Station Projects

“…The stiffness modulus and stiffness dissipation rate (m-value) obtained from the BBR test are the main parameters for characterizing the low-temperature performance of bitumen. Furthermore, the direct tensile test at extremely low temperature is used to determine the critical cracking temperature of bitumen [ 14 , 15 , 16 ]. The advanced rheological tests, as mentioned above, have not been applied for the characterization and optimization of hydraulic bitumen binders.…”

Pathways for Sustainable Utilization of Waste Chicken Eggshell

“…Francis et al [60] examined the impact of the addition of chicken eggshell powder on the compressed concrete and reported that addition of WCES led to improvement in the density, compressive strength, and durability of the concrete. The effect of the addition of various percentages of WCES to asphalt was investigated by Wang et al [61][62][63] who revealed improved strength, hardness, and thermal stability of the bitumen. Table 2 is a compilation of the outcomes of some researches on the application of WCES as cement additive and partial concrete replacement.…”

Research on the Interaction Capability and Microscopic Interfacial Mechanism between Asphalt-Binder and Steel Slag Aggregate-Filler

“…To evaluate the rheological properties of the asphalt mortars, the high and intermediate temperature sweep tests were conducted in strain-controlled loading mode at a constant frequency of 10 rad•s −1 using a Malvern Kinexus (UK) DSR test device [16,41,42]. For the high-temperature sweep tests, a parallel plate with 25 mm diameter and 1 mm gap was used.…”