基于寿命周期评价的橡胶沥青路面技术环境效益评估研究

Study on Environmental Benefit of Rubber Asphalt Pavement Technology Based on Life Cycle Assessment

为了准确评估橡胶沥青路面的环境影响,基于寿命周期评价理念,建立环境影响评估指标体系,并在对沥青路面施工各环节进行能源消耗数据调查的基础上,分别开展改性沥青、普通沥青以及橡胶沥青路面的能耗和温室气体排放测算研究。结果表明,从寿命周期的角度考虑,橡胶沥青混合料具有明显的节能效益,但在温室气体排放方面并无优势。

In order accurately evaluate the environmental impact of rubber asphalt pavement and based on the idea of life cycle assessment, the environmental impact assessment indicator system is established. And on the basis of the investigation of energy consumption data in each link of asphalt pavement construction, the energy consumption and greenhouse gas emission of modified asphalt, ordinary asphalt and rubber asphalt pavements are respectively measured and analyzed. The results show that the rubber asphalt mixture has the obvious energy-saving benefit considering from the viewpoint of life cycle, but it has no advantage in the term of greenhouse gas emission.