SLOVENSKI STANDARD
01-september-2008
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Precast concrete products - Hollow core slabs
Betonfertigteile - Hohlplatten
Produits préfabriqués en béton - Dalles alvéolées
Ta slovenski standard je istoveten z: EN 1168:2005/prA2
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.

EUROPEAN STANDARD
FINAL DRAFT
EN 1168:2005
NORME EUROPÉENNE
EUROPÄISCHE NORM
prA2
July 2008
ICS 91.100.30
English Version
Precast concrete products - Hollow core slabs
Produits préfabriqués en béton - Dalles alvéolées Betonfertigteile - Hohlplatten
This draft amendment is submitted to CEN members for unique acceptance procedure. It has been drawn up by the Technical Committee
CEN/TC 229.
This draft amendment A2, if approved, will modify the European Standard EN 1168:2005. If this draft becomes an amendment, CEN
members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for inclusion of this amendment
into the relevant national standard without any alteration.
This draft amendment 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 Management Centre has the same
status as the official versions.
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.
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
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. EN 1168:2005/prA2:2008: E
worldwide for CEN national Members.

Contents Page
Foreword.3
1 Modification to the Introduction.4
2 Modification to 4.2, Production requirements .4
3 Modification to 4.3.3.1, General.5
4 Addition of 4.3.3.3, Verification by calculation aided by physical testing.5
5 Modification to Clause 6, Evaluation of conformity.6
6 Modification to Table A.3, Finished product inspection.7
7 Modification to Annex ZA, Relationship between this European Standard and the
essential requirements of EC Directive 89/106/EEC, Construction Products Directive.8

Foreword
This document (EN 1168:2005/prA2:2008) has been prepared by Technical Committee CEN/TC 229 “Precast
concrete products”, the secretariat of which is held by AFNOR and was examined by and agreed with a joint
working party appointed by the Liaison Group CEN/TC 229 – CEN/TC 250, particularely for its compatibility
with structural Eurocodes.
This document is currently submitted to the Unique Acceptance Procedure.

1 Modification to Contents
List titles until level 3.
2 Modification to the Foreword
At the end of the first paragraph, add: "and was examined by and agreed with a joint working party appointed
by the Liaison Group CEN/TC 229 – CEN/TC 250, particularely for its compatibility with structural Eurocodes".
3 Modification to the Scope
th
In the 8 paragraph, replace "EN 1991-2" with "EN 1991-1-1".
4 Modification to the Introduction
Replace the second part of the sentence (after the semi colon) of the third paragraph with:
"however, concrete properties adopted as input for calculation of shear resistance depend on the proper
functioning of the production machine; therefore a full scale test method to confirm both the shear resistance
obtained by calculation and the proper functioning of the production machine, is given in Annex J
(normative).".
5 Modification to 4.2, Production requirements
Replace the content of the hanging paragraph with:
"4.2 of EN 13369:2004 shall apply. In particular the compressive strength of concrete according to 4.2.2.2 of
EN 13369:2004 shall be considered.
Proper placing and compacting of concrete by the production machine shall be verified by initial type testing
according to 6.2.2.
Complementary to 4.2.3 of EN 13369:2004 4.2.1 shall apply for structural reinforcement.".
6 Modification to 4.3.1.2.1, Thickness of webs and flanges
Replace the existing Figure 2 with the following new figure:
"
".
7 Modification to 4.3.3.1, General
Replace the last sentence with:
"The test method for confirmation of the shear resistance is given in Annex J.".
8 Modification to 4.3.3.2.1, Resistance to spalling for prestressed hollow core slabs
(e - k) (e - k)
o o
In a), replace "α = " with "α = ≥ 0".
e e
h h
9 Addition of 4.3.3.3, Verification by calculation aided by physical testing
Add a new subclause:
"4.3.3.3 Verification by calculation aided by physical testing
The shear resistance obtained by calculation shall be confirmed by physical full scale testing according to
Annex J.".
10 Modification to Clause 6, Evaluation of conformity
Replace the content of the whole clause with:
"6.1 General
6.1 of EN 13369:2004 shall apply.
6.2 Type testing
6.2.1 General
Consequently to 4.2 and 4.3.3.3, hollow core slabs shall be submitted to full scale type testing according to
Annex J. Further full scale testing in the framework of the factory production control (see 6.3) is not required
when the tests results are in accordance with the calculated values after J.5.
For the purpose of full scale type testing hollow core slabs made on the same type of production machines
and with the same concrete strength with similar shape of cores may be grouped into a product family if the
nominal depth h stays into a range of 50 mm and the nominal relative total web thickness ∑b of the cross
w-rel
sections stays into a range of 50 mm.
NOTE 1 The boarder of the range of 50 mm can be chosen by the producer, e.g. the depth of a product family can
enclose 150 mm to 200 mm, but 175 mm to 225 mm is also possible. The same principle applies to the relative total web
thickness.
NOTE 2 The relative total web thickness ∑b is equal to the total web thickness ∑b (in mm) (see 4.3.1.1.1) divided
-rel
w w
by the slab width (in m).
If a production facility consists of two or more production machines of the same type, type testing may be
limited to one machine as far as at least the same compaction level of concrete is demonstrated on the other
machines by appropriate concrete strength tests on concrete specimen sampled from the production of each
machine concerned as described in A.3, item 10.
Results of full scale testing shall be recorded after J.6.
6.2.2 Initial type testing
Complementary to 6.2.2 of EN 13369:2004 the following shall apply.
Initial type testing according to Annex J shall be performed at the start up of:
 one or more new cross sections to confirm the shear resistance obtained by calculation;
 a new production facility to confirm the proper functioning of the production machine(s).
Initial type testing shall be carried out for each singular cross section or if the sections are grouped into
families (see 6.2.1), for a single section of each family.
For each cross section to be tested:
 the prestressing or reinforcement level shall be at least 75 % of the maximum level scheduled for the
given cross section;
 three identical elements shall be tested and the reliability criteria of J.5 shall be checked for the individual
and mean test results.
NOTE 1 Even to confirm the proper functioning of the casting equipment, the check of the criteria of J.5 requires
calculation of shear capacity, irrespective of the declaration of the mechanical resistance properties to the market or not by
the manufacturer.
NOTE 2 Cross sections belonging to the ongoing production legally put on the market at the date of publication of this
amendment should not be considered as new and should be dispensed consequently from type testing.
6.2.3 Further type testing
Complementary to 6.2.3 of EN 13369:2004 the following shall apply.
Further full scale type testing according to Annex J shall be performed if there is a major change in the design
of the cross sections, in concrete strength, in the type or operating principal of the production machine or if
there is another change which could significantly affect shear resistance.
Further full scale type testing shall be made on at least one product-family to confirm the shear resistance
obtained by calculation (see 6.2.2).
The change of concrete compressive strength by more than 1 class shall be considered as a major change of
concrete strength.
Further type testing according to Annex J may also be required in case of doubt about proper functioning of
the production machine on the base of the factory production control inspections (e.g. slippage of tendons or
failing concrete compaction).
Depending on the nature of the change, 6.2.2 shall apply for the relevant sections and facilities.
6.3 Factory production control
Complementary to 6.3 of EN 13369:2004 following clause shall apply.
The inspection schemes of Annex D of EN 13369:2004 are completed as given in Annex A.".
11 Modification to Table A.3, Finished product inspection
b
Delete row 3 (number 1, Full scale test) of the table as well as footnote and update the numbering in the first
column of the Table A.3.
12 Deletion of Annex Y, Choice of CE marking method
Delete Annex Y in its entirety.

13 Modification to Annex ZA, Relationship between this European Standard and the
essential requirements of EC Directive 89/106/EEC, Construction Products Directive
Replace the content of the whole Annex ZA with the following new text:
"
Annex ZA
(informative)
Clauses of this European Standard addressing essential requirements or
other provisions of EU Directives
ZA.1 Scope and relevant characteristics
This European Standard has been prepared under the mandate M/100 "Precast Concrete Products" given to
CEN by the European Commission and the European Free Trade Association.
The clauses of this European Standard shown in this annex meet the requirements of the mandate given
under the EC Construction Products Directive (89/106/EEC).
Compliance with these clauses confers a presumption of fitness of the hollow core slabs covered by this
annex for the intended uses indicated herein; reference shall be made to the information accompanying the
CE marking.
WARNING — Other requirements and other EC Directives, not affecting the fitness for intended uses,
may be applicable to the hollow core slabs falling within the scope of this standard.
NOTE 1 In addition to any specific clauses relating to dangerous substances contained in this standard, there may be
requirements applicable to the products falling within its scope (e.g. transposed European legislation and national laws,
regulations and administrative provisions). In order to meet the provisions of the EU Construction Products Directive,
these requirements need also to be complied with, when and where they apply.
NOTE 2 An informative database of European and national provisions on dangerous substances is available at the
Construction web site on EUROPA, (accessed through
http://ec.europa.eu/enterprise/construction/internal/dangsub/dangmain_en.htm .)
This annex has the same scope as Clause 1 of this standard with regard to the production covered. It
establishes the conditions for CE marking of hollow core slabs made of reinforced or prestressed concrete
intended for the use indicated below and shows the relevant clauses applicable (see Table ZA.1).
Construction product: hollow core slabs made of reinforced or prestressed concrete.
Intended use: construction of the structures of buildings and other civil engineering works, except bridges.

The requirement on a certain characteristic is not applicable in those Member States (MSs) where there are
no regulatory requirements for that characteristic for the intended use of the product. In this case,
manufacturers placing their products on the market of these MSs are not obliged to determine nor to declare
the performance of their products with regard to this characteristic and the option “No performance
determined” (NPD) in the information accompanying the CE marking (see ZA.3) may be used. The NPD
option may not be used, however, where the characteristic is subject to a threshold level.
Table ZA.1 — Relevant clauses for hollow core slabs
Levels
Notes and
Requirement clauses in this
Essential characteristics and/or
standard
Unit
class(es)
Compressive strength
All methods 4.2 Production requirements None
N/mm
(of concrete)
Ultimate tensile
4.1.3 Reinforcing steel and
and tensile
All methods
yield strength (of 4.1.4 Prestressing steel of
None N/mm
...

EN 1168:2005/prA2

Precast concrete products - Hollow core slabs

Precast concrete products - Hollow core slabs

Betonfertigteile - Hohlplatten

Produits préfabriqués en béton - Dalles alvéolées

Montažni betonski izdelki - Votle plošče

General Information

Relations

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Standards Content (Sample)

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Precast concrete products - Hollow core slabs

Betonfertigteile - Hohlplatten

Produits préfabriqués en béton - Dalles alvéolées

Montažni betonski izdelki - Votle plošče

General Information

Relations

Buy Standard

Standards Content (Sample)

Questions, Comments and Discussion

Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.

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