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EN 18185:2026

Sustainability of construction works - Environmental product declarations - Product Category Rules for precast lightweight concrete with an open structure and precast autoclaved aerated concrete

Edition date: 2026-07-22
In Force
Available languages: French, English
Summary: This document provides product category rules (PCR) guidance for the development of Type III environmental declarations for prefabricated reinforced components of autoclaved aerated concrete or lightweight aggregate concrete with open structure according to EN 15804:2012+A2:2019. This document defines the parameters to be reported, the EPD types (and life cycle stages) to be covered, the rules to be followed for generating life cycle inventories (LCI) and conducting life cycle impact assessments (LCIA), and the data quality to be used in the development of EPDs. In addition to the common parts of EN 15804:2012+A2:2019, this document provides guidance for elements made as prefabricated reinforced components of autoclaved aerated concrete or lightweight aggregate concrete with open structure: — defines the system boundaries; — defines the modelling and assessment of material-specific characteristics; — defines allocation procedures for multi-output processes along the production chain; — defines allocation procedures for reuse and recycling; — includes the rules for calculating the LCI and the LCIA underlying the EPD; — provides guidance/specific rules for the determination of the reference service life (RSL); — gives guidance on the establishment of default scenarios; — gives guidance on default functional units for elements. This document is intended to be used for cradle to gate, cradle to gate with options or cradle to grave assessments, when the intention is clearly stated in the system boundary description.

Le présent document fournit des recommandations concernant les règles régissant les catégories de produit (RCP) pour l’élaboration des déclarations environnementales de type III des éléments préfabriqués armés en béton cellulaire autoclavé ou en béton de granulats légers à structure ouverte, conformément à l’EN 15804:2012+A2:2019. Le présent document définit les paramètres à consigner, les types de DEP (et les étapes du cycle de vie) à couvrir, les règles à suivre pour calculer les inventaires du cycle de vie (ICV) et procéder aux évaluations de l’impact du cycle de vie (EICV), ainsi que la qualité des données à utiliser pour l’élaboration des DEP. En complément des parties communes de l’EN 15804:2012+A2:2019, le présent document fournit des recommandations pour les éléments préfabriqués armés en béton cellulaire autoclavé ou en béton de granulats légers à structure ouverte : — il définit les frontières du système ; — il définit la modélisation et l’évaluation des caractéristiques spécifiques du matériau ; — il définit les procédures d’affectation pour les processus à extrants multiples tout au long de la chaîne de production ; — il définit les procédures d’affectation relatives à la réutilisation et au recyclage ; — il intègre les règles de calcul de l’ICV et de l’EICV servant de base à la DEP ; — il fournit des recommandations/règles spécifiques relatives à la durée de vie de référence (DVR) ; — il fournit des recommandations pour déterminer les scénarios par défaut ; — il fournit des recommandations sur les unités fonctionnelles par défaut pour les éléments. Le présent document est destiné à être utilisé pour des évaluations « du berceau à la sortie de l’usine », « du berceau à la sortie de l’usine avec options » ou « du berceau à la tombe », lorsque l’intention est clairement formulée dans la description des frontières du système.

Dieses Dokument enthält eine Anleitung zu den Regeln für die Produktkategorie (PCR) für die Entwicklung von Typ-III-Umweltdeklarationen für vorgefertigte bewehrte Bauteile aus dampfgehärtetem Porenbeton oder haufwerksporigem Leichtbeton nach EN 15804:2012+A2:2019. Dieses Dokument legt die zu dokumentierenden Parameter, die zu behandelnden EPD-Arten (und Lebenszyklusphasen), die zu befolgenden Regeln zur Erstellung von Sachbilanzen (LCI, en: life cycle inventories) und zur Durchführung von Wirkungsabschätzungen (LCIA, en: life cycle impact assessments) sowie die erforderliche Qualität der bei der Erstellung von EPDs zu verwendenden Daten fest. Zusätzlich zu den allgemeinen Abschnitten von EN 15804:2012+A2:2019 enthält dieses Dokument einen Leitfaden für Fertigteile, die als vorgefertigte bewehrte Bauteile aus dampfgehärtetem Porenbeton oder haufwerksporigem Leichtbeton hergestellt werden. Dieses Dokument:  legt die Systemgrenzen fest;  legt die Modellierung und Bewertung der materialspezifischen Eigenschaften fest;  legt Allokationsverfahren für Multi-Output-Prozesse entlang der Produktionskette fest;  legt Allokationsverfahren für Wiederverwendung und Recycling fest;  enthält die Regeln für die Berechnung der LCI und der LCIA, die der EPD zugrunde liegen;  enthält eine Anleitung/spezifische Regeln für die Ermittlung der Referenz-Nutzungsdauer (RSL, en: reference service life);  enthält eine Anleitung zur Festlegung von Standardszenarien;  enthält eine Anleitung zu üblichen funktionalen Einheiten für Fertigteile. Sofern eindeutig in der Beschreibung der Systemgrenzen angegeben, ist dieses Dokument für die Anwendung bei Bewertungen von der Wiege bis zum Werkstor, von der Wiege bis zum Werkstor mit Optionen oder von der Wiege bis zur Bahre vorgesehen.

ICS: 13.020.50-Ecolabelling, 91.100.30-Concrete and concrete products
CTN: CEN/TC 177 - 6158

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