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The EPiC database: Hybrid embodied environmental flow coefficients for construction materials
Resources, Conservation and Recycling ( IF 13.2 ) Pub Date : 2021-11-26 , DOI: 10.1016/j.resconrec.2021.106058
Robert H. Crawford 1 , André Stephan 1, 2 , Fabian Prideaux 1
Affiliation  

Demand for new buildings and infrastructure continues to grow and will only increase in coming years to cater for forecast growth in global population. This demand will result in considerable strain on the natural environment, resulting from the operation of these new built assets as well as the demand for resources required to construct and maintain them. Life cycle assessment is a tool that can be used during the design or refurbishment of new or existing buildings or infrastructure projects, to assess and improve their environmental performance. A life cycle assessment is often time consuming and complex, especially when used for the analysis of entire construction projects. This is particularly true when it is used to analyse construction-related, or embodied, environmental flows (e.g. embodied greenhouse gas emissions). To simplify the process, especially with projects that have tight time or budget constraints, product-based environmental flow coefficients are often used, which provide an indication of the environmental flows associated with specific construction materials. However, existing coefficients are typically based on process data, inherent with truncated product system boundaries. This paper introduces the Environmental Performance in Construction (EPiC) Database, a comprehensive database of hybrid embodied environmental flow coefficients for construction materials in Australia. EPiC uses a hybrid life cycle inventory approach to fill the gaps that exist in process data and provide embodied environmental flow coefficients that are systemically complete. This study has shown that existing process data for materials is on average 55% incomplete, but considerable inconsistency in system boundary coverage means that this incompleteness varies from 2% to 99% across materials and environmental flows. Other key strengths of EPiC are its transparency, providing open access to all data, and methodological consistency, with coefficient data sources and methods being the same for all materials. Environmental flow coefficients from EPiC can be used on their own or integrated into existing life cycle assessment tools, informing improvements to the environmental performance of construction projects.



中文翻译:

EPiC 数据库:建筑材料的混合体现环境流量系数

对新建筑和基础设施的需求持续增长,未来几年只会增加以满足全球人口的预测增长。由于这些新建资产的运营以及对建造和维护资产所需的资源的需求,这种需求将对自然环境造成相当大的压力。生命周期评估是一种工具,可在新的或现有的建筑物或基础设施项目的设计或翻新过程中使用,以评估和改善其环境绩效。生命周期评估通常既耗时又复杂,尤其是在用于分析整个建筑项目时。当它被用于分析与建筑相关的或隐含的环境流量(例如隐含的温室气体排放)时尤其如此。为了简化流程,特别是对于时间或预算紧张的项目,通常使用基于产品的环境流量系数,它提供与特定建筑材料相关的环境流量的指示。然而,现有系数通常基于过程数据,具有截断的产品系统边界。本文介绍了建筑环境绩效 (EPiC) 数据库,这是澳大利亚建筑材料混合体现环境流量系数的综合数据库。EPiC 使用混合生命周期清单方法来填补过程数据中存在的空白,并提供系统完整的具体环境流量系数。这项研究表明,现有的材料工艺数据平均有 55% 不完整,但是系统边界覆盖范围内的相当大的不一致意味着这种不完整性在材料和环境流中从 2% 到 99% 不等。EPiC 的其他主要优势是它的透明度,提供对所有数据的开放访问,以及方法的一致性,所有材料的系数数据来源和方法都相同。EPiC 的环境流量系数可以单独使用或集成到现有的生命周期评估工具中,为建设项目的环境绩效改进提供信息。所有材料的系数数据来源和方法都相同。EPiC 的环境流量系数可以单独使用或集成到现有的生命周期评估工具中,为建设项目的环境绩效改进提供信息。所有材料的系数数据来源和方法都相同。EPiC 的环境流量系数可以单独使用或集成到现有的生命周期评估工具中,为建设项目的环境绩效改进提供信息。

更新日期:2021-11-26
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