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首页> 外文期刊>Environmental Science & Technology: ES&T >Suitability of EPDs for Supporting Life Cycle and Comparative Analysis of Concrete Mixtures
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Suitability of EPDs for Supporting Life Cycle and Comparative Analysis of Concrete Mixtures

机译：Suitability of EPDs for Supporting Life Cycle and Comparative Analysis of Concrete Mixtures

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摘要

The use of environmental product declarations (EPDs) of concrete and other construction materials is gaining momentum. EPDs should enable an informed selection of products with a lower environmental footprint; hence, the issue of EPD comparability is highly relevant. In this paper, we identified and discussed the present shortcomings and future opportunities that can promote a meaningful EPD comparison for concrete products. Based on the published EPDs, we suggest a more comprehensive water consumption accounting, as the batching water is commonly underestimated. A set of performance metrics required to be specified for concrete are proposed to be included in the product category rules. An effort to develop a procedure for the regular calibration of existing tools with identical calculation databases and methods can produce outcomes that differ by 1-19%. The incorporation of prescriptive and consistently implemented life cycle inventory can minimize the calculation noise. The incorporation of uncertainty and variability as well as a supply-chain-specific EPD creation can help move toward a robust comparison based on the existing data in EPDs.

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