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首页> 外文期刊>Journal of Infrastructure Systems >Structural Design and Lifecycle Assessment of Heated Pavement Using Conductive Asphalt
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Structural Design and Lifecycle Assessment of Heated Pavement Using Conductive Asphalt

机译：导电沥青加热路面的结构设计与生命周期评估

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摘要

Snow and ice on pavements would affect the mobility and safety of motorists unfavorably. As a cost-effective and pollution-free solution, this study proposes a heated pavement system using multifunctional conductive asphalt concrete containing graphite filler. The objective of this study is to find an efficient structural design for heated pavement and to evaluate its environmental, economic, and social impacts. The objectives were achieved through a three-stage methodology: a bench scale slab heating test and measurement of material properties, a set of parametric study using a nonsteady state heat transfer model, and lifecycle assessment. Based on the heat transfer analysis results, the location and thickness of the conductive layer that maximize the energy efficiency is proposed. The lifecycle assessment results champion the practical and sustainable applications of the heated pavement from the three-pillar perspective, conveying the fact that the initial high installment cost was eventually recouped by a substantial reduction in maintenance cost. The results and findings of this study will promote a wider adoption of the conductive asphalt concrete for sustainable infrastructure development and maintenance.
机译：人行道上的雪和冰会不利地影响驾驶者的机动性和安全性。作为一种经济高效且无污染的解决方案，本研究提出了一种使用包含石墨填料的多功能导电沥青混凝土的加热路面系统。这项研究的目的是找到一种有效的加热路面结构设计，并评估其对环境，经济和社会的影响。通过三个阶段的方法实现了目标：台式板坯加热测试和材料性能测量，使用非稳态传热模型的一组参数研究以及生命周期评估。基于传热分析结果，提出了使能量效率最大化的导电层的位置和厚度。生命周期评估结果从三支柱的角度支持加热路面的实用和可持续应用，传达了这样一个事实，即最初的高安装成本最终被维护成本的大幅降低所抵消。这项研究的结果和结果将促进导电沥青混凝土在可持续基础设施开发和维护中的广泛采用。

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