Sustainability of construction works - Environmental product declarations - Product Category Rules for concrete and concrete elements

This European Standard complements the core rules for the product category of construction products as defined in EN 15804:2012+A1:2013 and is intended to be used in conjunction with that standard.
This European Standard applies to concrete and concrete elements for building and civil engineering, excluded autoclaved aerated concrete.
This document defines the parameters to be reported, what EPD types (and life cycle stages) to be covered, what rules to be followed in order to generate Life Cycle Inventories (LCI) and conduct Life Cycle Impact Assessment (LCIA) and the data quality to be used in the development of EPDs.
In addition to the common parts of EN 15804:2012+A1:2013, this European Standard for concrete and concrete elements:
-   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 concrete elements.
This document is intended to be used either for cradle to gate, cradle to gate with options or cradle to grave assessment, provided the intentions are properly stated in the system boundary description.
Within the construction works context, a cradle to grave declaration delivers a more comprehensive understanding of the environmental impact associated with concrete and concrete elements.

Nachhaltigkeit von Bauwerken - Umweltproduktdeklarationen - Produktkategorieregeln für Beton und Betonelemente

Diese Europäische Norm vervollständigt die Kernregeln für die Produktkategorie von Bauprodukten, wie in EN 15804:2012+A1:2013 definiert, und soll in Übereinstimmung mit dieser Norm verwendet werden.
Diese Europäische Norm gilt für Betone und Betonelemente für Gebäude und für Ingenieurbauwerke.
Dieses Dokument legt die zu dokumentierenden Parameter fest, welche EPD-Typen (und Phasen des Lebenszyklus) zu behandeln und welche Regeln zu befolgen sind, um Sachbilanzen (LCI) zu generieren und Wirkungsabschätzungen (LCIA) durchzuführen, und welche Qualität die bei der Erstellung von EPDs verwendeten Daten haben sollen.
Zusätzlich zu den allgemeinen Abschnitten von EN 15804:2012+A1:2013 hat die vorliegende Europäische Norm für Betonfertigteile folgende Ziele: Sie
-   legt die Systemgrenzen fest;
-   legt die Modellierung und Bewertung der materialspezifischen Eigenschaften fest;
-   legt die Allokationsverfahren für Multi-Output-Prozesse entlang der Produktionskette fest;
-   legt die Allokationsverfahren für die Wiederverwendung und das Recycling fest;
-   enthält die Regeln für die Berechnung der LCI und der Wirkungsabschätzung, die der EPD zugrunde liegen;
-   liefert eine Anleitung/spezielle Vorschriften für die Ermittlung der Referenz-Nutzungsdauer (RSL);
-   gibt eine Anleitung zur Festlegung von Normszenarios;
-   gibt eine Anleitung für normkonforme funktionale Einheiten für Betonfertigteile.
Dieses Dokument ist vorgesehen, entweder für die Produktionsphase (Wiege bis Werkstor), die Produktionsphase (Wiege bis Werkstor) mit Optionen oder die Bewertung des Lebenszyklus (Wiege bis Bahre) verwendet zu werden, vorausgesetzt, dass der Zweck ordnungsgemäß in der Beschreibung der Systemgrenze festgelegt ist.
Im Kontext der Bauwerke liefert eine umfassende Deklaration ein besseres Gesamtverständnis der Umweltfolgen, die sich aus Betonen und Betonelemente ergeben.

Contribution des ouvrages de construction au développement durable - Déclarations environnementales sur les produits - Règles régissant la catégorie de produits pour le béton et les éléments en béton

La présente Norme européenne complète les règles de base des catégories de produits applicables aux produits de construction, telles que définies dans la norme EN 15804:2012+A1:2013 avec laquelle elle est destinée à être utilisée conjointement.
La présente Norme européenne s'applique au béton et aux éléments en béton destinés à être utilisés dans la construction de bâtiments et d'ouvrages de génie civil.
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 l'inventaire du cycle de vie et procéder à l'évaluation de l'impact du cycle de vie, ainsi que la qualité des données à utiliser pour l'élaboration des DEP.
En plus des parties communes de l'EN 15804:2012+A1:2013, la présente Norme européenne relative au béton et aux éléments en béton :
-   définit les frontières du système ;
-   définit la modélisation et l'évaluation des caractéristiques spécifiques du matériau ;
-   définit les procédures d'affectation pour les processus multi-débouchés tout au long de la chaîne de production ;
-   définit les procédures d'affectation relatives à la réutilisation et au recyclage ;
-   intègre les règles de calcul de l'inventaire du cycle de vie et de l'évaluation de l'impact du cycle de vie servant de base à la DEP ;
-   fournit des lignes directrices/règles spécifiques relatives à la durée de vie de référence (DVR) ;
-   fournit des lignes directrices pour déterminer les scénarios par défaut ;
-   fournit des lignes directrices sur les unités fonctionnelles par défaut pour les éléments en béton.
Le présent document est destiné à être utilisé soit « du berceau à la sortie de l'usine », soit « du berceau à la sortie de l'usine avec options » ou pour une évaluation « du berceau à la tombe », à condition que les intentions soient correctement formulées dans la description des frontières du système.
Dans le cadre des ouvrages de construction, une déclaration « du berceau à la tombe » donne une meilleure compréhension de l'impact environnemental associé au béton et aux éléments en béton.

Trajnostnost gradbenih objektov - Okoljske deklaracije za proizvode - Pravila za kategorije proizvodov za beton in betonske elemente

Ta evropski standard dopolnjuje osnovna pravila za opredelitev kategorije gradbenih proizvodov, določena v standardu EN 15804+A1, in je namenjen za uporabo s tem standardom.
Ta evropski standard se uporablja za beton in betonske elemente za visoke ali nizke gradnje.
Ta dokument določa parametre, ki jih je treba podati, katere vrste EPD (in stopnje življenjskega cikla) je treba zajeti, katera pravila je treba upoštevati za izdelavo inventarja življenjskega cikla (LCI) in oceno življenjskega cikla (LCIA), ter kakovost podatkov, uporabljeno pri razvoju EPD-jev.
Dodatno k splošnim delom standarda EN 15804+A1, ta evropski standard za beton in betonske elemente:
– določa meje sistema;
– določa modeliranje in ocenjevanje lastnosti, bistvenih za to vrsto materiala;
– določa postopke dodeljevanja za večizhodne procese v proizvodni verigi;
– določa postopke dodeljevanja za ponovno uporabo in reciklažo;
– vključuje pravila za izračun inventarja življenjskega cikla in vrednotenje vplivov življenjskega cikla, ki sta osnova deklaracije EPD;
– podaja smernice/posebna pravila za določevanje referenčne življenjske dobe (RSL);
– podaja smernice o vzpostavitvi privzetih scenarijev;
– podaja smernice o privzetih funkcionalnih enotah za betonske elemente.
Ta dokument se predvidoma uporablja za ocenjevanje faze izdelave »od zibelke do vrat«, »od zibelke do vrat z možnostmi« ali »od zibelke do groba«, če so namere jasno navedene v opisu meja sistema.
V kontekstu gradbenih del deklaracija »od zibelke do groba« zagotavlja obsežnejšo razumevanje vplivov na okolje v povezavi z betonom in betonskimi elementi.

General Information

Status
Published
Publication Date
20-Jun-2017
Current Stage
6060 - Definitive text made available (DAV) - Publishing
Due Date
21-Jun-2017
Completion Date
21-Jun-2017

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SLOVENSKI STANDARD
SIST EN 16757:2017
01-september-2017
Trajnostnost gradbenih objektov - Okoljske deklaracije za proizvode - Pravila za
kategorije proizvodov za beton in betonske elemente

Sustainability of construction works - Environmental product declarations - Product

Category Rules for concrete and concrete elements

Nachhaltigkeit von Bauwerken - Umweltproduktdeklarationen - Produktkategorieregeln

für Beton und Betonelemente

Contribution des ouvrages de construction au développement durable - Déclarations

environnementales sur les produits - Règles régissant la catégorie de produits pour le

béton et les éléments en béton
Ta slovenski standard je istoveten z: EN 16757:2017
ICS:
13.020.20 Okoljska ekonomija. Environmental economics.
Trajnostnost Sustainability
91.100.30 Beton in betonski izdelki Concrete and concrete
products
SIST EN 16757:2017 en,fr,de

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN 16757:2017
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SIST EN 16757:2017
EN 16757
EUROPEAN STANDARD
NORME EUROPÉENNE
June 2017
EUROPÄISCHE NORM
ICS 91.100.30
English Version
Sustainability of construction works - Environmental
product declarations - Product Category Rules for concrete
and concrete elements
Contribution des ouvrages de construction au Nachhaltigkeit von Bauwerken -
développement durable - Déclarations Umweltproduktdeklarationen -

environnementales sur les produits - Règles régissant Produktkategorieregeln für Beton und Betonelemente

la catégorie de produits pour le béton et les éléments
en béton
This European Standard was approved by CEN on 11 May 2017.

CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this

European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references

concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN

member.

This European Standard exists in three official versions (English, French, German). A version in any other language made by

translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management

Centre has the same status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,

Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,

Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,

Turkey and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels

© 2017 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 16757:2017 E

worldwide for CEN national Members.
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SIST EN 16757:2017
EN 16757:2017 (E)
Contents Page

European foreword ....................................................................................................................................................... 4

Introduction .................................................................................................................................................................... 5

1 Scope .................................................................................................................................................................... 6

2 Normative references .................................................................................................................................... 6

3 Terms and definitions ................................................................................................................................... 7

4 Abbreviations ................................................................................................................................................ 10

5 General aspects ............................................................................................................................................. 11

5.1 Objective of this PCR ................................................................................................................................... 11

5.2 Types of EPD with respect to life cycle stages covered ................................................................... 11

5.3 Comparability of EPD for construction products ............................................................................. 13

5.4 Additional information .............................................................................................................................. 13

5.5 Ownership, responsibility and liability for the EPD ........................................................................ 13

5.6 Communication formats ............................................................................................................................ 13

6 Product Category Rules for LCA .............................................................................................................. 13

6.1 Product category .......................................................................................................................................... 13

6.2 Life cycle stages and their information modules to be included ................................................ 13

6.3 Calculation rules for the LCA .................................................................................................................... 15

6.4 Inventory analysis ....................................................................................................................................... 31

6.5 Impact assessment ....................................................................................................................................... 31

7 Content of the EPD ....................................................................................................................................... 32

7.1 Declaration of general information ....................................................................................................... 32

7.2 Declaration of environmental parameters derived from LCA ..................................................... 32

7.3 Scenarios and additional technical information............................................................................... 32

7.4 Additional information on release of dangerous substances to indoor air, soil and

water during the use stage ........................................................................................................................ 34

7.5 Aggregation of information modules .................................................................................................... 34

8 Project report ................................................................................................................................................ 34

9 Verification and validity of an EPD ........................................................................................................ 34

Annex A (normative) Requirements and guidance on the reference service life .............................. 35

Annex B (informative) Waste ................................................................................................................................ 36

Annex C (informative) Characterization factors for GWP, ODP, AP, EP, POCP and ADP .................. 37

Annex AA (informative) Scenarios ...................................................................................................................... 38

Annex BB (informative) CO uptake by carbonation — Guidance on calculation .............................. 43

BB.1 General ............................................................................................................................................................. 43

BB.2 Potential CO uptake for totally carbonated concrete .................................................................... 45

BB.3 Use stage, (module B) method of calculation of CO uptake ......................................................... 45

BB.4 End of life, module C .................................................................................................................................... 49

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SIST EN 16757:2017
EN 16757:2017 (E)

BB.5 Beyond the system boundary, module D .............................................................................................. 50

BB.6 Additional information ............................................................................................................................... 50

BB.7 Regional, national or product specific calculation ........................................................................... 50

BB.8 References ....................................................................................................................................................... 50

BB.9 Some recent literature on CO uptake ................................................................................................... 51

Bibliography ................................................................................................................................................................. 52

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SIST EN 16757:2017
EN 16757:2017 (E)
European foreword

This document (EN 16757:2017) has been prepared by Technical Committee CEN/TC 229 “Precast

Concrete Products”, the secretariat of which is held by AFNOR.

This European Standard shall be given the status of a national standard, either by publication of an

identical text or by endorsement, at the latest by December 2017, and conflicting national standards

shall be withdrawn at the latest by December 2017.

Attention is drawn to the possibility that some of the elements of this document may be the subject of

patent rights. CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent

rights.

According to the CEN-CENELEC Internal Regulations, the national standards organisations of the

following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria,

Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia,

France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta,

Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,

Turkey and the United Kingdom.
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SIST EN 16757:2017
EN 16757:2017 (E)
Introduction

The European Standard EN 15804:2012+A1:2013 provides core rules for all construction products and

services.

It provides a structure to ensure that all Environmental Product Declarations (EPD) of construction

products, construction services and construction processes are derived, verified and presented in a

harmonized way.

This European Standard provides additional rules for Environmental Product Declarations (EPD)

specifically for concrete and concrete elements. It complements the core rules for all construction

products and services as established in EN 15804:2012+A1:2013.

An EPD communicates verifiable, accurate, non-misleading environmental information for products and

their applications, thereby supporting scientifically based, fair choices and stimulating the potential for

market-driven continuous environmental improvement.

The standardization process has taken place in accordance with ISO 14025. All common issues are

covered horizontally for all product types in order to minimize vertical (branch specific) deviations. All

common issues are covered horizontally for all concrete and concrete elements in order to minimize

intra-sectorial deviations.

EPD information is expressed in information modules as defined in EN 15804:2012+A1:2013, which

allow easy organization and expression of data packages throughout the life cycle of concrete and

concrete elements. The approach requires that the underlying data should be consistent, reproducible

and comparable.

In line with EN 15804:2012+A1:2013 the EPD is expressed in a form that allows aggregation (addition)

to provide complete information for buildings. This standard does not deal with aggregation at the

building level nor does this standard describe the rules for applying EPD in a building assessment.

The standard deals with a limited number of quantifiable parameters as predefined in

EN 15804:2012+A1:2013. Future revisions of EN 15804 may lead to the incorporation in this standard

of additional predetermined parameters. This European Standard provides the means for developing a

Type III environmental declaration of concrete and concrete elements in the context of the suite of

standards that are intended to assess the sustainability of construction works.
This suite of standards includes:

— EN 15643-1, Sustainability of construction works —Sustainability assessment of buildings — Part 1:

General framework

— EN 15643-2, Sustainability of construction works — Assessment of buildings — Part 2: Framework

for the assessment of environmental performance

— EN 15978, Sustainability of construction works — Assessment of environmental performance of

buildings —Calculation methods

— EN 15804:2012+A1:2013, Sustainability of construction works — Environmental product

declaration — Core rules for the product category of construction products

— CEN/TR 15941, Sustainability of construction works — Environmental product declarations —

Methodology for selection and use of generic data

— EN 15942, Sustainability of construction works — Environmental product declarations —

Communication format - business to business

— CEN/TR 16970:2016, Sustainability of construction works - Guidance for the implementation of

EN 15804
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SIST EN 16757:2017
EN 16757:2017 (E)
1 Scope

This European Standard complements the core rules for the product category of construction products

as defined in EN 15804:2012+A1:2013 and is intended to be used in conjunction with that standard.

This European Standard applies to concrete and concrete elements for building and civil engineering,

excluded autoclaved aerated concrete.

This document defines the parameters to be reported, what EPD types (and life cycle stages) to be

covered, what rules to be followed in order to generate Life Cycle Inventories (LCI) and conduct Life

Cycle Impact Assessment (LCIA) and the data quality to be used in the development of EPDs.

In addition to the common parts of EN 15804:2012+A1:2013, this European Standard for concrete and

concrete elements:
— 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 concrete elements.

This document is intended to be used either for cradle to gate, cradle to gate with options or cradle to

grave assessment, provided the intentions are properly stated in the system boundary description.

Within the construction works context, a cradle to grave declaration delivers a more comprehensive

understanding of the environmental impact associated with concrete and concrete elements.

2 Normative references

The following documents, in whole or in part, are normatively referenced in this document and are

indispensable for its application. For dated references, only the edition cited applies. For undated

references, the latest edition of the referenced document (including any amendments) applies.

EN 206:2013+A1:2016, Concrete - Specification, performance, production and conformity

EN 15804:2012+A1:2013, Sustainability of construction works - Environmental product declarations -

Core rules for the product category of construction products
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SIST EN 16757:2017
EN 16757:2017 (E)
3 Terms and definitions

For the purposes of this document, the terms and definitions given in EN 15804:2012+A1:2013 and the

following apply.
3.1
environmental product declaration
EPD
fr: déclaration environnementale de produit
de: Umweltdeklaration

environmental declaration providing quantified environmental data using predetermined parameters

and, where relevant, additional environmental information
[SOURCE: ISO 21930:2007]
3.2
concrete
fr: béton
de: Beton

material formed by mixing cement, coarse and fine aggregate and water, with or without the

incorporation of admixtures, additions or fibres, which develops its properties by hydration of cement

and hydraulic additions as defined in EN 206, as appropriate
[SOURCE: EN 206:2013+A1:2016]
3.3
concrete element
fr: élément en béton
de: Betonelement

part of a construction work made of concrete, either precast or cast on site or a combination of both

3.4
precast (concrete) element
fr: élément préfabriqué (en béton)
de: vorgefertigtes Betonerzeugnis

concrete element cast and cured in a place other than the final location of use (factory produced or site

manufactured)
[SOURCE: EN 206:2013+A1:2016]
3.5
precast (concrete) product
fr: produit préfabriqué (en béton)
de: Fertigteil (aus Beton)

product made of concrete and manufactured in accordance with EN 13369 or a specific product

standard in a place different from the final destination of use, protected from adverse weather

conditions during production

Note 1 to entry: The product is the result of an industrial process under a factory production control system

and with the possibility of sorting before delivery.
[SOURCE: EN 13369:2013]
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SIST EN 16757:2017
EN 16757:2017 (E)
3.6
ready-mixed concrete
fr: béton prêt à l’emploi
de: Transportbeton

— concrete delivered in a fresh state by a person or body who is not the user; or

— concrete produced off site by the user; or
— concrete produced on site, but not by the user
[SOURCE: EN 206:2013+A1:2016]
3.7
site-mixed concrete
fr: béton de chantier
de: Baustellenbeton

concrete produced on the construction site by the user of the concrete for his own use

[SOURCE: EN 206:2013+A1:2016]
3.8
addition
fr: addition
de: Betonzusatzstoff

finely-divided-inorganic constituent used in concrete in order to improve certain properties or to

achieve special properties

Note 1 to entry: The addition could be nearly inert (type I), pozzolanic or latent hydraulic addition (type II).

[SOURCE: EN 206:2013+A1:2016]
3.9
admixture
fr: adjuvant
de: Betonzusatzmittel

constituent added during the mixing process in small quantities related to the mass of cement to modify

the properties of fresh or hardened concrete
[SOURCE: EN 206:2013+A1:2016]
3.10
aggregate
fr: granulat
de: Gesteinskörnung

granular material of natural, manufactured, or recycled origin used in construction

[SOURCE: EN 12620:2002+A1:2008]
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SIST EN 16757:2017
EN 16757:2017 (E)
3.11
cement
fr: ciment
de: Zement

finely ground inorganic material which, when mixed with water, forms a paste that sets and hardens by

means of hydration reactions and processes and which, after hardening, retains its strength and

stability even under water
[SOURCE: EN 197-1:2011]
3.12
binder
combination of cement and reactive (type II) additions
3.13
clinker

main constituent of most cement, made by heating at high temperature a homogeneous mixture of raw

materials (mostly limestone and clay)
3.14
polymer fibre
fr: fibres polymères
de: Polymerfasern

straight or deformed piece of extruded, orientated and cut material, which are suitable to be

homogenously mixed into concrete
[SOURCE: EN 14889-2 :2006]
3.15
steel fibre
fr: fibres d’acier
de: Stahlfasern

straight or deformed piece of cold-drawn steel wire, straight or deformed cut sheet fibres, melt

extracted fibres, shaved cold drawn wire fibres or fibres milled from steel blocks, which are suitable to

be homogeneously mixed into concrete
[SOURCE: EN 14889-1:2006]
3.16
reinforcement steel

steel (wire, strand or bars) subjected to pre- or post-tensioning, and steel (bars, wire, strand, welded

mesh fabrics, lattice girder) not subjected to pre- or post-tensioning
3.17
cubic metre of concrete
fr: mètre cube de béton
de: Kubikmeter Beton

quantity of fresh concrete which, when compacted in accordance with the procedure given in

EN 12350-6, occupies a volume of one cubic metre
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SIST EN 16757:2017
EN 16757:2017 (E)
3.18
truck mixer
fr: camion malaxeur
de: Fahrmischer

concrete mixer mounted on a self-propelled chassis capable of mixing and delivering a homogeneous

concrete
[SOURCE: EN 206:2013+A1:2016]
3.19
falsework
fr: étayement
de: Lehrgerüst

temporary support for a part of a structure while it is not self-supporting and for associated service

load
3.20
formwork
fr: coffrage
de: Schalung

structure, permanent or temporary, for containing poured concrete, moulding it to the required

dimensions and supporting it until it is able to support itself
3.21
carbonation
fr: carbonatation
de: Carbonatisierung

chemical reaction, a natural process by which carbon dioxide in the ambient air penetrates and reacts

with hydration products
3.22
estimated service life
fr: durée de vie estimée
de: voraussichtliche Nutzungsdauer

service life that a building or an assembled system (part of works) would be expected to have in a set of

specific in-use conditions, determined from reference service life data after taking into account any

differences from the reference in use conditions
[SOURCE: EN 15978]
4 Abbreviations

For the purposes of this document, the abbreviations given in EN 15804:2012+A1:2013 and the

following apply.
GGBS Ground Granulated Blastfurnace Slag
PFA Pulverized Fuel Ash”
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SIST EN 16757:2017
EN 16757:2017 (E)
5 General aspects
5.1 Objective of this PCR

The objective of this PCR is to provide common rules specific for concrete and concrete elements for the

application of EN 15804:2012+A1:2013, for building and civil engineering works.
In addition to the objectives of EN 15804:2012+A1:2013 this document aims to:

— define the parameters to be declared and the way in which they are collated and reported;

— describe which stages of a product’s life cycle are considered in the EPD and which processes are to

be included in the life cycle stages;

— define rules for the development of scenarios, including the rules for calculating the Life Cycle

Inventory and the Life Cycle Impact Assessment underlying the EPD, including the specification of

the data quality to be applied;

— communicate EPDs and environmental information about concrete and concrete elements;

— ensure that comparisons between construction products are carried out in the context of their use

in the building on the basis of the functional unit.
5.2 Types of EPD with respect to life cycle stages covered
EN 15804:2012+A1:2013 shall apply.
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SIST EN 16757:2017
EN 16757:2017 (E)
Figure 1 — Types of EPD with respect to life cycle stages covered
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SIST EN 16757:2017
EN 16757:2017 (E)
5.3 Comparability of EPD for construction products
EN 15804:2012+A1:2013 shall apply.
5.4 Additional information
EN 15804:2012+A1:2013 shall apply.
5.5 Ownership, responsibility and liability for the EPD
EN 15804:2012+A1:2013 shall apply.
5.6 Communication formats
EN 15804:2012+A1:2013 shall apply.
6 Product Category Rules for LCA
6.1 Product category

The product category referred to in this standard includes concrete and concrete elements for building

and civil engineering works.
6.2 Life cycle stages and their information modules to be included
6.2.1 General
In addition to the text of EN 15804:2012+A1:2013:

As all life cycle stages (from A1 to C4) shall be included when assessing a construction work (building

or civil engineering), it is recommended that EPDs prepared cover the same life cycle, i.e. cradle to

grave.
A general description of the life cycle stages is given in Figure 1.
6.2.2 A1-A3, Product stage, information modules
In addition to the text of EN 15804:2012+A1:2013:

NOTE Concrete and concrete elements may contain the following constituents or products (not exhaustive

list):
— aggregates;
— cement;
— water;
— admixtures;
— additions;
— fibres;
— reinforcing steel (for precast concrete elements).

When the full LCI of constituents is not available, impact indicators and aspects from the EPDs

complying to EN 15804:2012+A1:2013 for the constituents or for ready-mixed concrete, covering

modules A1 to A3, can be used for the assessment of module A1 of the concrete or concrete element. If

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transport is included, then the impacts and aspects covering modules A1 to A4 can be used for the

assessment of modules A1 and A2 (see Figure 2).

Figure 2 — EPD for constituents (top) and for concrete and concrete elements (bottom)

As an example, for the use of aggregate in concrete, when the EPD of aggregate is used, modules A1 to

A3 of the aggregate EPD becomes part of modules A1 of concrete EPD and module A4 of aggregate EPD

becomes part of modules A2 of concrete EPD.
6.2.3 A4-A5, Construction process stage, information modules
In addition to the text of EN 15804:2012+A1:2013:

At the construction stage (A5), additional constituents or products may be added to the concrete or

concrete element to obtain the defined functional unit; in this case these constituents should be also

taken into account during this stage.
EXAMPLE Reinforcing steel, mortar, structural topping, etc.
6.2.4 B1-B5, Use stage, information modules related to the building fabric
EN 15804:2012+A1:2013 shall apply.

6.2.5 B6-B7, use stage, information modules related to the operation of the building

EN 15804:2012+A1:2013 shall apply.
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6.2.6 C1-C4 End-of-life stage, information modules
EN 15804:2012+A1:2013 shall apply.
6.2.7 D, Benefits and loads beyond the system boundary, information module
EN 15804:2012+A1:2013 shall apply.
6.3 Calculation rules for the LCA
6.3.1 Functional unit
In addition to the text in EN 15804:2012+A1:2013:

The functional unit is based on the function performed by the product in the construction work and on

the RSL of the product. It depends on the type of the concrete element. The functional unit is defined in

function of the application of the product in the construction work.
Functional units for concrete elements shall give the following information:
— type and dimension;
— intended use;

— main performance characteristics of concrete (e.g. strength class, exposure class in accordance with

EN 206) or of concrete element (e.g. load bearing capacity, thermal and acoustic performance);

— reference service life.
NOTE 1 Examples of functional unit are:

1 m of an exterior load bearing wall or 1 linear metre of a beam with a defined load bearing capacity

which fulfils the performance requirements concerning construction, like thermal insulation, sound

insulation, fire resistance, etc. for a defined reference service life (see 6.3.3).

NOTE 2 As additional information, the environmental impacts and aspects may be expressed in terms of

“impacts and aspects per year of RSL”.
6.3.2 Declared unit
In addition to the text in EN 15804:2012+A1:2013:
Mass may also be expressed in tonnes (1 000 kg).
6.3.3 Reference service life (RSL)
In addition to the text in EN 15804:2012+A1:2013:

When the use of the concrete or concrete element in the building or civil engineering work is known,

the RSL of the product shall be consistent with its Estimated Service Life (at least equal to).

When the use is not known the RSL of concrete or concrete element should be assessed by the producer

or by the manufacturer for the intended use. Guidance is given in Annex A and Annex AA of this

standard.
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6.3.4 System boundaries
6.3.4.1 General
In addition to the text in EN 15804:2012+A1:2013:
The general layout of system boundaries may be found in Figures 3 and 4.
Carbonation

The impacts of the use and end-of-life stages may include carbonation of the concrete. Some precast

concrete elements may also be subjected to carbonation during production stage (e.g. induced

carbonation, long term storage before delivery).

Carbonation is a natural process which occurs during the life cycle of concrete. It shall be considered

during the us
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