| dc.description.abstract | Environmental protection is an increasing and essential issue in pavement engineering, especially asphalt concrete manufacturing. Hot Mix Asphalt (HMA) is widely used worldwide. However, Warm Mix Asphalt (WMA) technology can decrease asphalt mixtures production and laying temperature. Zeolite is a material that can be a warm mix additive because it can provide a foaming effect to increase workability. This study evaluates zeolite as a warm mix additive in rheological properties, mixing performance, economic, energy, and environmental impacts. Four different types of zeolites, Aspha-min, Zp-4a, Type A, and Natural are used in this study. The optimized content of zeolite was determined by using a mass loss test, the foaming effect, viscosity, and Dynamic Shear Rheometer (DSR) were conducted to evaluate the physical properties of the asphalt binder. The results showed that using 5% of zeolite as an additive has better workability and viscosity. To understand the performances of WMA with zeolites, compactability indices, moisture sensitivity, and the Hamburg Wheel Tracking Test (HWTT) were also conducted. Experimental findings have shown that the compactability index can better determine mixing and compaction temperatures than viscosity tests for zeolite material as a WMA additive. The results showed that Aspha-min has better compactability indices than other zeolites, and Natural zeolite has lower moisture sensitivity and HWTT. With a Tensile Strength Ratio (TSR) of 91% and rut depth at 10,000 passes is 7.03 mm. Moreover, economic, energy, and environmental impact analyses have shown that zeolites are environmentally efficient. Reducing 15 °C and 30 °C can reduce energy consumption and GHG emission by 5.49% and 10.97%, respectively. This study found that zeolite may be used as an effective and sustainable WMA additive. | en_US |