FprEN 1169

SLOVENSKI STANDARD
01-januar-2024
Montažni betonski izdelki - Splošna pravila za notranjo kontrolo proizvodnje
steklocementnega betona
Precast concrete products - General rules for factory production control of Glass fibre
Reinforced Concrete
Vorgefertigte Betonerzeugnisse - Allgemeine Regeln für die werkseigene
Produktionskontrolle von Glasfaserbeton
Produits préfabriqués en béton - Règles générales pour le contrôle de la production en
usine des composites ciment-verre
Ta slovenski standard je istoveten z: prEN 1169
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 1169
NORME EUROPÉENNE
EUROPÄISCHE NORM
October 2023
ICS Will supersede EN 1169:1999
English Version
Precast concrete products - General rules for factory
production control of Glass fibre Reinforced Concrete
Produits préfabriqués en béton - Règles générales de Vorgefertigte Betonerzeugnisse - Allgemeine Regeln
contrôle de production des composites ciment-verre für die werkseigene Produktionskontrolle 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 1169:2023 E
worldwide for CEN national Members.

prEN 1169:2023(E)
Contents Page
European foreword . 3
Introduction . 4
1 Scope . 5
2 Normative references . 5
3 Definitions and abbreviation . 5
4 Factory production control . 7
5 Control of raw materials . 11
6 Materials batching and mixing . 12
7 Production process . 14
8 Controls of fresh and hardened GRC . 16
Annex A (normative) Guidelines for establishment of the factory production control . 19
Annex B (informative) Control tests on fresh GRC: Premix GRC process . 21
Annex C (informative) Control tests on fresh GRC: Premix GRC process . 22
Annex D (informative) Summary of control tests on hardened GRC . 23
Bibliography . 25

prEN 1169:2023 (E)
European foreword
This document (prEN 1169:2023) 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 1169:1999.
EN 1169:2023 includes the following significant technical changes with respect to EN 1169:1999:
— Clarification of the scope, with precision about what is covered and what is excluded,
— Modification of the symbols used in coherence with EN 1170 and EN 15191,
— Updated reference to the new EN 1170:2023 as resulting of the revision and merging of parts of the
EN 1170 series,
— Technical modifications in accordance with the new EN 1170:2023,
— Overall rewriting to comply with CEN Internal Regulation part 3.
prEN 1169:2023(E)
Introduction
When developing a GRC composite material, the manufacturer should not only consider the properties
required for the specific application but also the requirements of the production processes.
Where a customer is considering using products manufactured from GRC composites, early consultation
with GRC manufacturers is recommended.
prEN 1169:2023 (E)
1 Scope
This document defines the general processes, procedures and rules for production and production
control of Glass fibre Reinforced Concrete used to manufacture products commonly used in construction,
civil engineering, architecture and other applications.
Glass fibre reinforced concrete can be produced from a range of mix designs comprising various materials
and manufactured by different processes. This document covers two primary production processes,
namely Sprayed GRC and Premix GRC.
This document does not cover concrete, where the glass fibre does not act as primary reinforcement but
is used as an additive. It does not cover but can be used as guidance for injection and extrusion
manufacturing processes.
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 1170:2023, Precast concrete products - Test method for glass-fibre reinforced cement
EN 15191:2023, Classification of glass fibre reinforced concrete performance
EN 15422:2008, Precast concrete products - Specification of glassfibres for reinforcement of mortars and
concretes
3 Definitions and abbreviation
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 Definitions
3.1.1
additive
product that may be added to the matrix composition to improve some properties
Note 1 to entry: It can be reactive (e.g., silica fumes) or inert, mineral or organic (e.g. polymer dispersions).
3.1.2
admixture
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]
prEN 1169:2023(E)
3.1.3
AR glass-fibre (Alkali-Resistant)
glass fibre resistant to the alkaline environment of matrices made from cement, sand etc.
Note 1 to entry: See "matrix" below
Note 2 to entry: This resistance is due particularly to a specific composition of the glass.
3.1.4
strand
glass fibre reinforcement element formed by binding together individual filaments of a nominal diameter
between 10 µm to 30 µm
3.1.5
glass fibre reinforced concrete (GRC)
composite material consisting of a matrix of hydraulic binder reinforced with glass fibres as
reinforcement usually randomly distributed throughout the matrix, these materials being compatible
3.1.6
matrix
part of glass fibre reinforced cement comprising the mixture of sand, cement, water, and additives and
admixtures when used
3.1.7
spray process
process whereby a GRC product in which the fibres are oriented randomly in layers parallel to the mould
surface is manufactured by simultaneously spraying a cementitious matrix and alkali resistant glass
fibres through the same nozzle of a special spray gun specifically designed for the purpose
3.1.8
premix process
process whereby glass fibres, which have been cut to predetermined lengths, are blended with the
cementitious matrix to produce a glass fibre reinforced concrete which can be formed into products by
casting, with or without vibration to aid compaction, spraying, injection, extrusion, etc.
3.1.9
roving
one format in which the alkali resistant glass fibre is supplied
3.1.10
tex
weight of the roving or strand per kilometre, normally measured in grams
3.1.11
filament
individual element of the glass fibre from which strands are formed
3.1.12
size
binder with which the individual glass fibre filaments are bonded together to form strands
prEN 1169:2023 (E)
3.1.13
textile GRC
process where a premix is cast or sprayed in layers and additional AR Glass fibres (e.g., textiles,
continuous strands, mats, and other forms of continuous, directional reinforcement made from AR Glass)
are placed in a defined direction
3.2 Symbols and abbreviated terms
ε strain at limit of proportionality
LOP
ε strain at failure
MOR
σ stress at limit of proportionality, in megapascals
LOP
σ stress at failure, in megapascals
MOR
AR alkali resistant
FPC factory production control
GRC or GFRC glass fibre reinforced concrete
LOP limit of proportionality
MOR modulus of rupture
4 Factory production control
4.1 General
The manufacturer shall establish, document, maintain and implement a factory production control (FPC)
system to ensure that the GRC composite material meets the requirements of this standard and complies
with the specified or declared values and with the requirements on technical documentation.
NOTE A manufacturer that operates a quality system in accordance with EN ISO 9001:2015 and takes into
account the requirements of this standard is deemed to satisfy the factory production control requirements as
described hereafter.
4.2 Organisation
The tasks, competences, responsibilities and authority of the personnel involved in factory production
control shall be defined, documented, maintained and implemented, including procedures for the
following activities:
a) demonstration of conformity of the GRC composite material at appropriate stages,
b) identification recording and dealing with any instance of non-conformity,
c) establishment of causes of non-conformity and possible corrective action (design, materials or
production procedures).
An organisational scheme shall clarify the activities given in a) to c) of the personnel involved.
Special requirements regarding the competence level of various functions may be applicable.
prEN 1169:2023(E)
4.3 Control system
The factory production control system shall consist of procedures, instructions, regular inspections, tests
and the utilization of the results to control equipment, raw materials, other incoming materials,
production process and finished GRC composite material.
4.4 Document control
Documents shall be controlled in such a way that only valid copies are available in the workplace. These
documents are the procedures, instructions, standards, construction reports, drawings and the factory
production control procedures.
The production drawings and documents shall provide the specifications and all data necessary for the
manufacture (see 4.5) of the GRC composite material. They shall be dated and approved for production
by a person designated by the manufacturer.
In case the manufacturer uses shared product-type results, the FPC shall also include the appropriate
documentation as foreseen in Clause 6.2.1.
4.5 Process control
The manufacturer shall identify the relevant features of the plant and/or the production process which
affect the conformity of the GRC composite material with the technical specification. He shall plan and
perform the production process in such a manner that conformity of the GRC composite material with
the requirements of the product standard is ensured.
4.6 Inspection and testing
4.6.1 General
Inspection and testing shall be performed on equipment, raw materials, other incoming materials,
production process and finished GRC composite material. The subjects, criteria, methods and frequencies
related to inspection and testing shall be laid down in inspection schemes. The frequency of checks and
inspections and the methods which are not specified in this standard shall be defined in such a way as to
achieve permanent conformity of the product.
The inspection schemes given in Annexes B to D are reference schemes.
The manufacturer shall apply the relevant parts of these schemes unless he can demonstrate that any
change
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