环保净味沥青材料路用性能和施工减排效果对比分析

Comparative Analysis of Road Performance and Emission Eduction Effects of Environmental-Friendly Deodorized Asphalt Materials

摘要:

采用AC-13级配的沥青混合料，系统评价环保净味沥青路用性能和施工减排效果，并和传统基质沥青材料进行了对比。结果表明：环保净味剂对沥青的针入度、延度、软化点等3大核心指标未产生明显影响，薄膜烘箱老化后性能也和70#基质沥青老化后性能接近，对比混合料性能，净味沥青混合料关键性能指标略优于传统基质沥青混合料，并且都满足技术规范要求；而相对于传统基质沥青混合料，环保净味沥青混合料的拌和、施工过程中SO₂、H₂S、NO₂、NO_X和PM等污染物减排幅度达30%以上，可有效改善沥青施工人员的工作环境，降低沥青混合料拌和及摊铺对当地空气质量的影响。

Abstract:

The road performance and construction emission reduction effects of environmental-friendly deodorized asphalt based on AC-13 gradation asphalt mixtures was systematically evaluated, with comparative analyses against conventional base asphalt materials. The results indicated that the deodorizing modifier had no significant impact on the three core asphalt properties: penetration, ductility, and softening point. After thin-film oven aging, the performance of the modified asphalt remained comparable to that of aged 70# base asphalt, and both met the requirements of the JTG F40—2004 specifications. In terms of mixture performance, the deodorized asphalt mixture exhibited slightly superior key technical indicators compared to traditional base asphalt mixtures, while still complying with all technical specifications. Notably, during the mixing and construction processes, the emissions of pollutants such as SO₂ H₂S, NO₂, NO_x, and particulate matter (PM) from the deodorized asphalt mixture were reduced by over 30% compared to conventional mixtures. The significant reduction in emissions effectively improved the working environment for asphalt construction personnel and mitigated the impact of asphalt mixing and paving on local air quality.