T/CCTAS 105-2024 Active

Scope: This document provides guidance on the overall principles, materials, mix design and verification, construction, and quality control of polyolefin-modified asphalt mixtures. This document is applicable to new construction, reconstruction and expansion, and major and medium-scale maintenance projects of highways and urban roads; Main technical content: The use of waste plastic polyolefin modifiers for road construction not only disposes of waste plastics, prevents them from polluting the environment, and reduces the overall cost of pavement, but also greatly improves the high-temperature stability and mechanical properties of asphalt pavement, prolonging its service life. In addition, under the policy guidance of "peak carbon emissions" and "carbon neutrality" in China, green construction of highways is receiving increasing attention. From an environmental perspective, the use of waste plastic polyolefin modifiers can promote the comprehensive utilization of white pollutants in China. Moreover, the characteristics of its dry process, simple and rapid construction process, and avoidance of energy consumption and pollutant gas emissions during the production of modified asphalt result in significant economic and social benefits.