EN 197-6:2023

SLOVENSKI STANDARD
01-oktober-2023
Cement - 6. del: Cement z recikliranim gradbenim materialom
Cement - Part 6: Cement with recycled building materials
Zement - Teil 6: Zement mit rezyklierten Baustoffen
Ciment - Partie 6 : Ciment à base de matériaux de construction recyclés
Ta slovenski standard je istoveten z: EN 197-6:2023
ICS:
91.100.10 Cement. Mavec. Apno. Malta Cement. Gypsum. Lime.
Mortar
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN 197-6
EUROPEAN STANDARD
NORME EUROPÉENNE
June 2023
EUROPÄISCHE NORM
ICS 91.100.10
English Version
Cement - Part 6: Cement with recycled building materials
Ciment - Partie 6 : Ciment à base de matériaux de Zement - Teil 6: Zement mit rezyklierten Baustoffen
construction recyclés
This European Standard was approved by CEN on 24 April 2023.

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, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Türkiye and
United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2023 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 197-6:2023 E
worldwide for CEN national Members.

Contents Page
European foreword . 3
Introduction . 4
1 Scope . 5
2 Normative references . 5
3 Terms and definitions . 5
4 Constituents and composition . 5
4.1 General . 5
4.2 Recycled concrete fines . 6
4.3 Other cement constituents . 6
5 Requirements . 8
6 Standard designation . 8
7 Conformity criteria . 9
8 Attestation of conformity . 10
9 Marking and labelling . 11
Bibliography. 12

European foreword
This document (EN 197-6:2023) has been prepared by Technical Committee CEN/TC 51 “Cement and
building lime”, the secretariat of which is held by NBN.
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 2023, and conflicting national standards shall
be withdrawn at the latest by December 2023.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN shall not be held responsible for identifying any or all such patent rights.
Any feedback and questions on this document should be directed to the users’ national standards body.
A complete listing of these bodies can be found on the CEN website.
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, France, Germany, Greece, Hungary, Iceland, Ireland,
Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Republic of North
Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Türkiye and the United
Kingdom.
Introduction
The purpose of this document is to specify the requirements for cement with recycled concrete fines.
Different cements have different properties and performance. The performance tests available at the time
of publication of this document (i.e. for the determination of setting time, strength, soundness and heat
of hydration) have been included in this document. In addition, work is being carried out by CEN/TC 51
to identify any additional tests which are needed to specify further performance characteristics of
cement. Until further performance tests are available, it is necessary that the choice of cement, especially
the type and/or strength class in relation to the requirements for durability depending on exposure class
and type of construction in which it is incorporated, follows the appropriate standards and/or regulations
for concrete, mortar, grout, etc. valid in the place of use.
The fitness of cement with recycled concrete fines for the intended use to produce structural concrete
(reinforced or not) has been experimentally assessed by testing programs, the results of which have been
included in a dossier [1] approved by CEN/TC 51.
The cement types and strength classes defined in this document allow the specifier and/or the user to
contribute to objectives of sustainability for cement-based constructions and of circular economy and to
minimize the use of natural resources in accordance with local conditions of production.

1 Scope
This document specifies cement with recycled concrete fines whose intended use is the preparation of
concrete, mortar, grout, etc.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any amendments) applies.
EN 196-2, Method of testing cement — Part 2: Chemical analysis of cement
EN 196-6, Methods of testing cement — Part 6: Determination of fineness
EN 196-7:2007, Methods of testing cement — Part 7: Methods of taking and preparing samples of cement
EN 197-1:2011, Cement — Part 1: Composition, specifications and conformity criteria for common cements
EN 197-2:2020, Cement — Part 2: Assessment and verification of constancy of performance
EN 206:2013+A2:2021, Concrete — Specification, performance, production and conformity
EN 933-9, Tests for geometrical properties of aggregates — Part 9: Assessment of fines — Methylene blue
test
EN 13639, Determination of total organic carbon in limestone
3 Terms and definitions
For the purposes of this document, the terms and definitions given in EN 197-1:2011 apply.
ISO and IEC maintain terminology databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at https://www.iso.org/obp
— IEC Electropedia: available at https://www.electropedia.org/
4 Constituents and composition
4.1 General
Cement covered by this document contains recycled concrete fines and cement constituents covered by
EN 197-1.
The requirements on constituents are specified in 4.2 and 4.3.
The composition of cement covered by this document is specified in Table 1.
Provisions valid in the place of use may specify requirements for the content and the release of dangerous
substances from recycled concrete fines.
4.2 Recycled concrete fines
Recycled concrete fines is a specially selected and prepared mineral material
— coming from plants or units producing coarse, all-in and/or fine recycled concrete aggregates; or
— reclaimed from concrete production operations; or
— coming from reclaimed crushed aggregates as defined in EN 206:2013+A2:2021.
NOTE Recycled concrete fines can be considered to be suitable if the recycled coarse concrete aggregates
produced in the recycling plants or units fulfil the constituent requirements for R , Rb , Ra , FL and XR
CU90 10- 1- 2- g1-
according to EN 12620:2002+A1:2008, Table 20:
— R : ≥ 90 % by mass concrete, concrete products, mortar, concrete masonry units, unbound aggregate,
CU90
natural stone, hydraulically bound aggregate;
— Rb : ≤ 10 % by mass clay masonry units (i.e. bricks and tiles), calcium silicate masonry units, aerated
10-
non-floating concrete;
— Ra : ≤ 1 % by mass bituminous materials;
1-
— FL : ≤ 2 cm³/kg floating material in volume;
2-
— XR : ≤ 1 % by mass glass and other materials.
g1-
Recycled concrete fines are mainly non-reactive. A residual hydraulic or pozzolanic reactivity is possible
but does not contribute substantially to the cement reactivity.
The recycled concrete fines may be further processed in the cement plant, if necessary.
Recycled concrete fines shall fulfil the following requirements:
a) TOC content ≤ 0,8 % by mass, tested in accordance with EN 13639;
b) Sulfate content (as SO ) ≤ 2,0 % by mass, tested in accordance with EN 196-2;
c) the clay content, determined by the methylene blue test in accordance with EN 933-9, shall not
exceed 1,20 g/100 g. For this test, the recycled concrete fines shall be ground to a fineness of
approximately 5 000 cm /g determined as specific surface in accordance with EN 196-6.
4.3 Other cement constituents
The constituents of cement covered by this document, other than recycled concrete fines, shall fulfil the
requirements specified in EN 197-1:2011, Clause 5.
However, the following requirement for limestone (L, LL) replacing 5.2.6 a) of EN 197-1:2011 shall apply:
The calcium carbonate (CaCO ) content calculated from the calcium oxide content shall be at least 40 %
by mass and the sum of calcium carbonate and magnesium carbonate (CaCO and MgCO ) content
3 3
calculated from the calcium oxide and magnesium oxide content respectively shall be at least 75 % by
mass.
Table 1 — Cement with recycled concrete fines
a
Composition (percentage by mass)
Main constituents
Notation of the products
Minor
Pozzolana Fly ash
(types of cement)
Recycled Blast-
Main
additional
Silica Burnt
Clinker concrete furnace Limestone
types
constituents
natural
fume shale
natural siliceous calcareous
fines slag
calcined
Type
b c c
Type notation K F S P Q V W T
D L LL
name
Portland-
CEM II/A-F 80–94 6–20 — — — — — — — — — 0–5
recycled-
fines
CEM II/B-F 65–79 21–35 — — — — — — — — — 0–5
cement
CEM II/A-M 80–88 6–14 ‹––––––––––––––––––––––––––––––––––––- 6–14 –––––––––––––––––––––––––––––––––––-› 0–5
CEM II
Portland-
composite CEM II/B-M 65–79 6–29 ‹––––––––––––––––––––––––––––––––––––- 6–29 –––––––––––––––––––––––––––––––––––-› 0–5
d
cement
CEM II/C-M 50–64 6–20 ‹–––––––––––––––––––––––––––––––––––- 16–44 –––––––––––––––––––––––––––––––––––-› 0–5
Composite
CEM VI CEM VI 35–49 6–20 31–59 — — — — — — — — 0–5
cement
a
The values in the table refer to the sum of the main and minor additional constituents.
b
In case of the use of silica fume, the proportion of silica fume is limited to 6 % to 10 % by mass.
c
In case of the use of limestone, the proportion of the sum of limestone and recycled concrete fines (sum of L, LL and F) is limited to 35 % by mass.
d
The number of main constituents other than clinker is limited to two and these main constituents shall be declared by designation of the cement (for examples, see Clause 6).
In case of the use of both F and (L or LL) in the composition, the number of main constituents other than clinker is limited to three and these main constituents shall be declared
by designation of the cement.
5 Requirements
Cements covered by this document shall fulfil the requirements specified in EN 197-1:2011, 7.1, 7.2 and
7.4.1.
The requirements listed in EN 197-1:2011, Table 3 for low early strength, indicated by L, are applicable
for cements covered by this document.
In addition, cement covered by this document shall conform to the requirements listed in Table 2.
Table 2 — Additional requirements
...