Enhancing Pavement Performance and Environmental Sustainability: An Evaluation of Warm Mix Asphalt Using Zycotherm SP
摘要
This study evaluates the performance of warm mix asphalt (WMA) incorporating Zycotherm SP, a chemical additive designed to reduce asphalt mixing and compaction temperatures. Comparative analyses between WMA and conventional hot mix asphalt (HMA) across different gradations—BC I and BC II—and temperature ranges were conducted to assess environmental and mechanical benefits. The research tested aggregate and binder properties, determined optimum binder content, and evaluated volumetric properties, along with moisture sensitivity and fatigue characteristics of asphalt mixes. Utilizing Zycotherm SP resulted in a 20–30 °C reduction in production temperatures, significantly lowering energy consumption and emissions, thereby addressing environmental concerns. The findings demonstrate that WMA with Zycotherm SP maintains or enhances stability, flow, and bulk density at these reduced temperatures compared to HMA, substantiating its effectiveness in improving pavement performance while reducing environmental impact. The study confirms that WMA can achieve desired mechanical properties and durability at lower temperatures, suggesting potential for longer pavement life and reduced maintenance. By meeting and exceeding traditional HMA performance standards, this research supports wider adoption of WMA technologies in road construction to achieve sustainable and durable pavement solutions. The integration of Zycotherm SP not only aids in compliance with strict environmental regulations but also offers significant operational advantages, advocating for its broader implementation in the asphalt industry.