CEN/TR 15678:2008

SLOVENSKI STANDARD
01-julij-2008
%HWRQ6SURãþDQMHSUHGSLVDQLKQHYDUQLKVQRYLY]HPOMLQRSRGWDOQLFRLQ
SRYUãLQVNHYRGH3UHVNXVQDPHWRGD]DQRYHDOLQHSRWUMHQHVHVWDYLQHEHWRQDLQ
SURL]YHGHQHEHWRQH
Concrete - Release of regulated dangerous substances into soil, groundwater and
surface water - Test method for new or unapproved constituents of concrete and for
production concretes
Beton - Freisetzung regulierter gefährlicher Stoffe in den Boden, das Grundwasser und
das Oberflächenwasser - Testmethode für neue oder noch nicht zugelassene
Bestandteile von Beton und für Betone
Béton - Relargage de substances dangereuses réglementées dans les sols, les eaux
souterraines et les eaux de surface - Méthode d'essai des constituants du béton,
nouveaux ou non-approuvés, et des formules de béton
Ta slovenski standard je istoveten z: CEN/TR 15678:2008
ICS:
91.100.30 Beton in betonski izdelki Concrete and concrete
products
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

TECHNICAL REPORT
CEN/TR 15678
RAPPORT TECHNIQUE
TECHNISCHER BERICHT
April 2008
ICS 91.100.30
English Version
Concrete - Release of regulated dangerous substances into soil,
groundwater and surface water - Test method for new or
unapproved constituents of concrete and for production
concretes
Béton - Relargage de substances dangereuses Beton - Freisetzung regulierter gefährlicher Stoffe in den
réglementées dans les sols, les eaux souterraines et les Boden, das Grundwasser und das Oberflächenwasser -
eaux de surface - Méthode d'essai des constituants du Testmethode für neue oder noch nicht zugelassene
béton, nouveaux ou non-approuvés, et des formules de Bestandteile von Beton und für Betone
béton
This Technical Report was approved by CEN on 1 October 2007. It has been drawn up by the Technical Committee CEN/TC 51.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland,
France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,
Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: rue de Stassart, 36  B-1050 Brussels
© 2008 CEN All rights of exploitation in any form and by any means reserved Ref. No. CEN/TR 15678:2008: E
worldwide for CEN national Members.

Contents Page
Foreword.3
Introduction .4
1 Scope .10
2 Normative references .10
3 Terms and definitions .11
4 Principle.12
5 Reagents.13
6 Apparatus .13
7 Reference concrete.13
8 Sampling of constituents.14
9 Control mix, test mixes and test pieces .15
10 Preparation of concrete test pieces.17
11 Extraction procedure.18
12 Assessment of unapproved constituents .18
13 Analysis .19
14 Calculation of results .19
15 Expression of results .20
16 Test report .20
17 Test performance (precision estimates and uncertainty) .23
Annex A (normative) Testing for release of (regulated) dangerous substances from pre-hardened
concrete products formed in the factory .24
Annex B (informative) Testing for release of (regulated) dangerous substances from hardened test
pieces representative of fresh wet concretes or pre-packaged concretes .27
Annex C (informative) Principles of laboratory concrete mix design to be applied for the
assessment of new/unapproved constituents of concrete .30
Bibliography .35

Foreword
This document (CEN/TR 15678:2008) has been prepared by Technical Committee CEN/TC 51 “Cement and
buliding limes”, the secretariat of which is held by NBN.
It describes test methods, that when completed, will produce eluates for the assessment of inorganic and
organic substances potentially released from either the constituents of concretes (tested within hardened
reference concretes) or from production concretes (or test pieces representative of production concretes)
whether presented in the pre-hardened/precast state, fresh wet state or pre-packaged.
This document is currently incomplete. This document does not include the extraction procedure necessary to
produce the eluates because extraction procedures will be developed within a programme of horizontal test
method standardisation under a mandate given to CEN by the European Commission and the European Free
Trade Association in order to support essential requirements of EU Directives. The necessary programme of
work is being undertaken in CEN/TC 351 Construction products – Assessment of release of dangerous
substances.
Annex A, which is normative, describes the testing for release of (regulated) dangerous substances from pre-
hardened concrete products formed in the factory.
Annex B, which is informative, describes the testing for release of (regulated) dangerous substances from
hardened test pieces representative of fresh wet concretes or pre-packaged concretes.
Annex C, which is informative, describes the principles of laboratory concrete mix design to be applied for the
assessment of new/unapproved constituents of concrete.

Introduction
Regulatory background
In March 2005 the Commission Services of the European Union published mandate M/366 “Development of
horizontal standardised assessment methods for harmonised approaches relating to (regulated) dangerous
substances under the Construction Products Directive (CPD)”. M/366 deals with the subject of emissions or
release of (regulated) dangerous substances from construction products, as defined in the CPD, which may
have harmful impacts on human health and the environment in relation to essential requirement No. 3 (ER 3),
Health, hygiene and the environment, of the CPD. The mandate is intended to provide harmonised European
measurement/test method standards that are needed in order to remove technical barriers to trade and bring
about the “approximation” of laws, regulations and administrative provisions of the Member States. The
measurement/test standards should provide results that can be expressed in performance terms and be
suitable for addressing the emission or release of (regulated) dangerous substances within provisions in
harmonised European Technical Specifications (ETS).
For ease of assigning the appropriate environments or exposure scenarios to individual products, the
environment is notionally divided into two distinct environmental compartments: indoor air and soil,
groundwater and surface water. In this context, it is important to recognize that essential requirement No. 3
only covers the potential effects of construction on the health of occupants and neighbours of construction
works and the environment immediately surrounding the works. In life-cycle terms, it covers only the service
life of a product and, therefore, does not cover the construction phase or end-of-use/disposal.
These distinct environmental compartments are necessarily associated with exposure-specific test
methodologies, the emission of volatile, semi-volatile or other substances into indoor air being physico-
chemically, kinetically and thermodynamically distinct from release into aqueous environments. The test
methods described herein address only the potential release of substances into soil, groundwater and surface
water, forms of aqueous exposure which, given the focus on service-life, could be described as the natural
environment. Assessment of emission of substances into indoor air may or may not be relevant for the
cementitious products identified in this CEN TR. However, if it emerges that the regulatory regime requires
that this aspect of performance be addressed, then the European cement and concrete sector, via its
standardization committees, will involve itself in appropriate work items.
At the time of drafting this CEN TR, spring 2007, there are a number of uncertainties about the regulatory
regime that will eventually govern the assessment of emission/release of dangerous substances from
construction products within Europe. In particular, it is unclear which products and/or materials will be subject
to any part of the emerging regulatory regime. In the case of cement-containing products or materials such as
concrete there is additional uncertainty because, with the exception of mixing water, all the constituents of
concrete are construction products mandated in their own right under the Construction Products Directive
(CPD). However, the constituents of concrete do not come into direct contact with either soil, groundwater or
surface water and this could be taken to infer that they should not be subject to any regulatory provisions
except that some (i.e. those not already standardised under national standards or European Technical
Specifications) are subject to assessment within some Member States' existing environmental regulations.
Furthermore, some types of concrete, for example fresh wet concretes, have not been mandated as
construction products under the CPD and therefore might be considered to be outside any European
regulatory regime based upon it. The complicating factor for these materials, though, is that they are subject
to some EU Member States' existing regulations and may, in consequence, need to be assessed under a
European regulatory regime.
It is also unclear whether the assessment and classification framework under development for use in the
European regulatory regime will eventually be adopted. Currently, however, there are indications that the
framework will include three distinct elements:
a 'deemed to satisfy' classification scheme for assessing some products on the basis of existing, generally
accepted knowledge, currently known as 'without testing (WT)';
a classification scheme known as 'without further testing (WFT)' but based on initial testing using agreed
European test methods may also form part of the regime;
and for use in those cases where the above classifications are either inapplicable or where products cannot
achieve either classification because they can emit or release substances in amounts in excess of the
classification criteria, there would be a need to carry out 'further testing (FT)' in the form of routine or
conformity testing, again using agreed European test methods called up from appropriate provisions placed in
harmonised European Technical Specifications (e.g. harmonised European product standards and European
Technical Approvals). However, it is clear that the eventual European regulatory regime will neither establish
nor include any pan-European assessment criteria for assessing emission or release under conditions of
'further testing (FT)'. Assessment under FT conditions will be a matter of comparing results obtained using
European test methods with the appropriate, and possibly appropriately modified, limiting criteria in EU
Member States' existing national regulations.
Given the regulatory uncertainties outlined above, this CEN TR has taken the position that its scope must
initially include:
all types of concrete [pre-hardened/precast, fresh wet (ready-mixed and site-mixed) and pre-packaged);
and all the constituents of concrete, with the exception of mixing water;
so as to cover the eventuality that any of these, whether mandated construction products or not, may need to
be assessed for the purposes of conformity with Essential Requirement 3 of the Construction Products
Directive because any can come into either direct or indirect (constituents of concrete) contact with soil,
groundwater or surface water. However, those products that have been mandated as construction products in
their own right under the CPD are dealt with in normative provisions in this CEN TR whereas those that have
not been mandated
...