路用建筑垃圾中重金属的污染风险分析

Risk analysis of heavy metals in construction and demolition wastes used in freeway construction

建筑垃圾的用于公路建设,可以有效缓解公路建设资源紧张的局面。本文对用于西咸北环高速公路路基填筑的不同类型建筑垃圾中的重金属进行分析,结果表明:与土壤质量国家标准进行比较,个别样品重金属含量虽有超标现象,但平均值远低于三级指标,对环境影响较小,可以用于公路建设路基填筑。

Construction waste for highway construction,can effectively alleviate the tense situation of highway construction resources. This article analyzes the heavy metals in different types of construction waste that are used to fill the roadbed of the Xian-Xianyang Expressway, The results show： Comparing with national standards for soil quality, Individual samples have excessive levels of heavy metals, However, the average value is much lower than the third-level indicator, Little impact on the environment, it can be used for road construction roadbed construction.