Initial evaluation methodology and case studies for life cycle impact of permeability of permeable pavements
Initial evaluation methodology and case studies for life cycle impact of permeability of permeable pavements
复制标题
透水路面渗透性生命周期影响的初步评估方法和案例研究
DOI：
10.1016/j.ijtst.2018.07.002
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发表时间：
2018
影响因子：
--
通讯作者：
J. Harvey
中科院分区：
文献类型：
--
作者：
Yu Wang;H. Li;Ahmed Abdelhady;J. Harvey
近年来，中国城市洪涝灾害频繁发生。这造成了巨大的经济和环境损失。渗水路面作为海绵城市概念的重要组成部分之一，是解决这一问题的一种潜在方法，引起了人们的广泛关注。这项新技术能够有效地缓解城市洪水，并提供其他环境效益。生命周期评价（LCA）是一种新兴的评价方法，可用于评价透水路面在整个生命周期内的环境影响。本文提出了一种可同时用于透水沥青路面和透水混凝土路面环境影响评价的基本模型。研究了该技术对城市防洪、循环水和水净化的影响。然后对一条典型的四车道二级公路进行了透水沥青路面与密级配沥青路面的对比研究。结果表明，在10 km的模拟道路中，采用透水路面可避免能耗49TJ，当量二氧化碳排放量6700 t，铅排放量0.1 t，锌排放量1 t。此外，能源消耗、温室气体排放、铅排放和锌排放的最显著减少发生在使用阶段。
In recent years, urban flooding has occurred frequently in different cities in China. This has caused huge economic and environmental damages. As one of the main elements in the concept of sponge city – a potential solution to this problem – permeable pavements have attracted great attentions. This new technology has the ability to mitigate urban flooding effectively and it also provides other environmental benefits. Life Cycle Assessment (LCA) is a newly developed evaluation approach that can be applied to estimate the environmental impacts of pervious pavements in the entire life cycle.This study propose a basic model which can be applied to both permeable asphalt pavements and permeable concrete pavements to evaluate their environmental impacts. The impacts of this technology are investigated on urban flooding, water recycling and water purification. Then a comparison between permeable asphalt pavement and dense-graded asphalt pavement is conducted for a typical four-lane secondary road. Results indicate that in 10 km of the modeled road, 49TJ of energy consumption, 6700 t of equivalent carbon dioxide emissions, 0.1 t of lead emissions and 1 t of zinc emissions can be avoided if the permeable pavements is used. Moreover, the most significant reduction in energy consumption, GHG emissions, lead emissions and zinc emissions occurs in the use phase.