FprEN 15191

SLOVENSKI STANDARD
01-januar-2024
Montažni betonski izdelki - Klasifikacija lastnosti steklocementnega kompozita
Precast concrete products - Classification of Glass fibre Reinforced Concrete
performance
Betonfertigteile - Klassifizierung der Leistungseigenschaften von Glasfaserbeton
Produits préfabriqués en béton - Classification des performances des composites
ciment-verre
Ta slovenski standard je istoveten z: prEN 15191
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.

DRAFT
EUROPEAN STANDARD
prEN 15191
NORME EUROPÉENNE
EUROPÄISCHE NORM
October 2023
ICS Will supersede EN 15191:2009
English Version
Precast concrete products - Classification of Glass fibre
Reinforced Concrete performance
Produits préfabriqués en béton - Classification des Betonfertigteile - Klassifizierung der
performances des composites ciment-verre Leistungseigenschaften von Glasfaserbeton
This draft European Standard is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee
CEN/TC 229.
If this draft becomes a European Standard, 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.

This draft European Standard was established by CEN 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.
Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of which they are
aware and to provide supporting documentation.

Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without
notice and shall not be referred to as a European Standard.

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. prEN 15191:2023 E
worldwide for CEN national Members.

prEN 15191:2023(E)
Contents Page
European foreword . 3
Introduction . 4
1 Scope . 5
2 Normative references . 5
3 Terms and definitions . 5
3.1 Terms and definitions . 5
3.2 Symbols and abbreviated terms . 7
4 Properties of glassfibre reinforced concrete . 8
4.1 Characteristics of composite material . 8
4.2 GRC with oriented fibres . 8
5 Classification of GRC . 8
5.1 Classification according to mechanical properties. 8
5.2 Material classes . 9
5.2.1 Classification parameters . 9
5.2.2 Specification of the parameters . 9
5.3 Application specific parameter. 10
5.3.1 General. 10
5.3.2 Test methods . 10
5.3.3 Application specific value in case of exposure to natural weathering . 10
6 Special properties . 10
7 Requirements of glassfibre . 11
Annex A (informative) Typical compositions and characteristics . 12
Bibliography . 14

prEN 15191:2023 (E)
European foreword
This document (prEN 15191:2023) has been prepared by Technical Committee CEN/TC 229 “Precast
Concrete Products”, the secretariat of which is held by AFNOR.
This document is currently submitted to the CEN Enquiry.
This document will supersede EN 15191:2009.
EN 15191:2023 includes the following significant technical changes with respect to EN 15191:2009:
a) Typical composition and performance moved to an Informative Annex,
b) Introduction of a criterion on the ratio between the bending stress at limit of proportionality and the
bending stress at modulus of rupture,
c) Update and simplification of the table of characteristic values for the classification of GRC,
d) Modification of the provisions related to the application specific parameters, with the introduction of
default values.
prEN 15191:2023(E)
Introduction
The classification covers all GRC formulation and production processes.
The properties of GRC depend on:
a) the constituent materials used,
b) the composition of glassfibre reinforced concrete,
c) the production processes.
The classification of GRC is based on the material properties that can be achieved.
prEN 15191:2023 (E)
1 Scope
This document deals with the classification of glassfibre reinforced concrete. This classification conforms
to the needs of the design process of glassfibre reinforced concrete components. This document applies
only if EN 1169 is followed.
This document does not deal with design methods.
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 1170, Precast concrete products — Test method for glass-fibre reinforced concrete
EN 14649, Precast concrete products — Test method for strength retention of glass fibres in cement and
concrete (SIC TEST)
EN 15422, Precast concrete products - Specification of glassfibres for reinforcement of mortars and
concretes
3 Terms and definitions
For the purposes of this document, the following terms and definitions 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/
3.1 Terms and definitions
3.1.1
addition
product that may be added by weight or volume/weight to the matrix composition to improve some
properties
Note 1 to entry: An addition can be reactive or inert, mineral or organic.
Note 2 to entry: Silica fumes are reactive and polymer dispersions are organic.
3.1.2
admixture
product added in quantity less than 5 % of the cement mass, before or during mixing and giving expected
modifications to the initial and final properties
Note 1 to entry: The properties are for example: workability, air content.
3.1.3
AR glassfibre
glassfibre product with a proven resistance to the alkaline environment of matrices made from hydraulic
cement
prEN 15191:2023(E)
3.1.4
basic strand
glassfibre obtained by stranding a number of filaments having a defined individual diameter
Note 1 to entry: Number of filaments: typically 100 to 200; individual diameter: typically 10 µm to 30 µm.
3.1.5
roving
number of parallel strands wound together on a mandrel to form uniform cylindrical package size
3.1.6
glassfibre reinforced concrete
GRC
composite material consisting of a matrix reinforced with glassfibres, these materials being compatible
3.1.7
matrix
part of GRC which is not fibres, normally composed of sand, cement, water and any additions and
admixtures
3.1.8
spray process
process whereby continuous glassfibres are cut into set lengths and sprayed together with the matrix
Note 1 to entry: The processes are designed to give a glassfibre reinforced concrete in which the fibres are oriented
parallel to the mould surface.
3.1.9
premix process
process whereby chopped strands of glassfibres are blended with the matrix to make a glassfibre
reinforced concrete ready for processing
Note 1 to entry: The processes can be “casting and vibration”, wet spraying, injection, extrusion, etc.
3.1.10
process with oriented fibres
process whereby chopped strands or roving of glassfibre are placed in the matrix in a defined direction
3.1.11
facing coat
outer surface layer of fine-grained concrete which is often pigmented
3.1.12
SIC test
test method for strength retention of glass fibres in cement and concrete
3.1.13
fibre content
fibre content of glassfibre reinforced concrete is given in percentage by weight and it is related to the
total weight of the GRC
prEN 15191:2023 (E)
3.1.16
characteristic value
value of a property corresponding to a given fractile above which the population of all possible
measurements of that property are expected to lie
3.1.17
acceptance test
test carried out on a predetermined regular basis to confirm that batches of product conform to
specification
3.1.18
initial type testing
complete set of tests or other procedures described in the technical specification, to determine the
performance of samples of products representative of the product type for the characteristics
3.1.19
cement
hydraulic binder
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 206:2013, modified with the addition of the term hydraulic binder as synonym]
3.1.20
sand
granular mineral material of low granular class suitable for use in concrete
Note 1 to entry: Sands may be natural or artificial.
3.2 Symbols and abbreviated terms
AR alkali resistant
GRC glassfibre reinforced concrete
LOP limit of proportionality
MOR modulus of rupture
SIC strand in cement
L application factor of resistance related to the control performance (28-day-value)
σMOR
σ bending stress at which the linear-elastic material behaviour becomes plastic in the stress-
LOP
strain diagram
σ ultimate bending stress as determined in accordance with EN 1170
MOR
prEN 15191:2023(E)
4 Properties of glassfibre reinforced concrete
4.1 Characteristics of composite material
Glassfibre reinforced concrete is a composite material for which the glassfibre has the function of a
reinforcement for the cementitious matrix.
The properties of the composite material as manufactured depend on:
a) the properties of the matrix as base,
b) the properties, geometry, quantity and orientation of the glassfibre as reinforcement,
c) the bond between matrix and glassfibre,
d) the manufacturing processes,
e) the conditions and the treatments during production (curing).
The mechanical properties of GRC depend on the mix design and shall be consistent with the product
requirements.
4.2 GRC with oriented fibres
Processes using oriented fibres may result in mechanical properties that differ from the above. The
achievable properties depend on the following factors:
a) geometry of the product,
b) direction of the oriented fibres,
c) position and cross section of the oriented fibres in the product.
In case of oriented fibres, the position of the test pieces in the test according to EN 1170 is defined by the
orientation of the fibres. In this case the classification of GRC is related to the direction of the fibre in the
test.
5 Classification of GRC
5.1 Classification according to mechanical properties
Glassfibre reinforced concrete is classified in accordance with this standard on the basis of the σ and
LOP
σ values as its material specific properties as determined in accordance with EN 1170.
MOR
...