prEN 18035

SLOVENSKI STANDARD
01-januar-2024
Prednapeta jekla - Povoskane in oplaščene niti za uporabo v gradbeništvu
Prestressing steels - Waxed and sheathed strands for construction applications
Spannstähle - Gewachste und gehüllte Litzen für Bauanwendungen
Aciers de précontrainte - Torons gainés cirés pour applications dans la construction
Ta slovenski standard je istoveten z: prEN 18035
ICS:
77.140.15 Jekla za armiranje betona Steels for reinforcement of
concrete
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

DRAFT
EUROPEAN STANDARD
NORME EUROPÉENNE
EUROPÄISCHE NORM
November 2023
ICS 77.140.15
English Version
Prestressing steels - Waxed and sheathed strands for
construction applications
Aciers de précontrainte - Torons gainés cirés pour Spannstähle - Gewachste und gehüllte Litzen für
applications dans la construction Bauanwendungen
This draft European Standard is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee
CEN/TC 459/SC 4.
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 18035:2023 E
worldwide for CEN national Members.

Contents Page
European foreword . 3
1 Scope . 4
2 Normative references . 4
3 Terms and definitions . 5
4 Symbols. 6
5 Classification and designation . 7
5.1 Classification . 7
5.2 Designation . 7
6 Information to be obtained by the manufacturer . 7
7 Requirements . 7
7.1 Manufacturing process . 7
7.2 Requirements for the constituent materials of the waxed and sheathed strands . 8
7.2.1 Wax . 8
7.2.2 Base material of the sheath . 8
7.3 Requirements for the waxed and sheathed strands . 9
7.3.1 Geometrical properties of the base strands . 9
7.3.2 Standard and special properties related to the base strands . 10
7.3.3 Overall diameter . 15
7.3.4 Straightness . 15
7.3.5 Mass of wax . 15
7.3.6 Properties related to the sheath. 16
7.3.7 Water tightness . 17
7.3.8 Initial resistance to friction . 17
7.3.9 Retention of the adherence under thermal variations . 18
7.3.10 Impact resistance . 18
8 Conformity with this document . 18
8.1 General . 18
8.2 Acceptance testing . 18
8.2.1 Unit of product and acceptance unit . 18
8.2.2 Frequency of sampling and inspection . 18
8.2.3 Evaluation of test results of an acceptance unit . 19
9 Delivery conditions . 20
9.1 Conditioning . 20
9.2 Transportation and storage . 20
9.3 Labelling . 20
9.4 Documents accompanying the delivery . 20
Annex A (normative) Testing procedures . 21
Bibliography. 27

European foreword
This document (prEN 18035:2023) has been prepared by Technical Committee CEN/TC 459/SC 4
“Concrete reinforcing and prestressing steels”, the secretariat of which is held by DIN.
This document is currently submitted to the CEN enquiry.
1 Scope
This document specifies the requirements for uncoated high strength steel strands or zinc or zinc alloy
coated high strength steel strands, encapsulated with wax and a sheath for construction applications.
The document applies only to products as supplied by the manufacturer.
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 10020, Definition and classification of grades of steel
EN 10204, Metallic products — Types of inspection documents
EN 10244-1, Steel wire and wire products — Non-ferrous metallic coatings on steel wire — Part 1:
General requirements
EN 10244-2, Steel wire and wire products — Non-ferrous metallic coatings on steel wire — Part 2: Zinc or
zinc alloy coatings
EN ISO 175, Plastics — Methods of test for the determination of the effects of immersion in liquid
chemicals (ISO 175)
EN ISO 527-1, Plastics — Determination of tensile properties — Part 1: General principles (ISO 527-1)
EN ISO 527-2, Plastics — Determination of tensile properties — Part 2: Test conditions for moulding and
extrusion plastics (ISO 527-2)
EN ISO 4892-2, Plastics — Methods of exposure to laboratory light sources — Part 2: Xenon-arc lamps
(ISO 4892-2)
EN ISO 9227, Corrosion tests in artificial atmospheres — Salt spray tests (ISO 9227)
EN ISO 10304-1, Water quality — Determination of dissolved anions by liquid chromatography of ions —
Part 1: Determination of bromide, chloride, fluoride, nitrate, nitrite, phosphate and sulfate (ISO 10304-1)
EN ISO 10304-4, Water quality — Determination of dissolved anions by liquid chromatography of ions —
Part 4: Determination of chlorate, chloride and chlorite in water with low contamination (ISO 10304-4)
EN ISO 15630-3, Steel for the reinforcement and prestressing of concrete — Test methods — Part 3:
Prestressing steel (ISO 15630-3)
EN ISO 16120-1, Non-alloy steel wire rod for conversion to wire — Part 1: General requirements (ISO
16120-1)
EN ISO 16120-2, Non-alloy steel wire rod for conversion to wire — Part 2: Specific requirements for
general purpose wire rod (ISO 16120-2)
EN ISO 16120-4, Non-alloy steel wire rod for conversion to wire — Part 4: Specific requirements for wire
rod for special applications (ISO 16120-4)
ISO 1183-1, Plastics — Methods for determining the density of non-cellular plastics — Part 1: Immersion
method, liquid pyknometer method and titration method
ISO 2137, Petroleum products and lubricants — Determination of cone penetration of lubricating greases
and petrolatum
ISO 2176, Petroleum products — Lubricating grease — Determination of dropping point
ISO 2207, Petroleum waxes — Determination of congealing point
ISO 6964, Polyolefin pipes and fittings — Determination of carbon black content by calcination and
pyrolysis — Test method
ISO 11357-6, Plastics — Differential scanning calorimetry (DSC) — Part 6: Determination of oxidation
induction time (isothermal OIT) and oxidation induction temperature (dynamic OIT)
ISO 18553, Method for the assessment of the degree of pigment or carbon black dispersion in polyolefin
pipes, fittings and compounds
BS 2000-121, Methods of test for petroleum and its products — Determination of oil separation from
lubricating grease — Pressure filtration method
DIN 51817, Testing of lubricants — Determination of oil separation from greases under static conditions
NF M 07-023, Liquid fuels — Determination of chlorides in crude petroleum and petroleum products
NF T 60-191, Petroleum products and lubricating greases — Oil separation on storage of grease — Static
conditions under pressure
ASTM D942, Standard Test Method for Oxidation Stability of Lubricating Greases by the Oxygen Pressure
Vessel Method
ASTM D1693, Standard Test Method for Environmental Stress-Cracking of Ethylene Plastics
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
uncoated strand
strand consisting of uncoated high strength steel wires
3.2
zinc or zinc alloy coated strand
strand consisting of zinc or zinc alloy hot-dip coated high strength steel wires
3.3
waxed and sheathed strand
uncoated or zinc or zinc alloy coated strand encapsulated with wax and a sheath
3.4
sheath
continuous envelope surrounding the strand
3.5
batch of wax
quantity of wax produced in one manufacturing operation
4 Symbols
The symbols used in this document and the corresponding designations are given in Table 1.
Table 1 — Symbols and corresponding designations
Symbol Unit Designation
A % Percentage total extension at maximum force
gt
D % Average coefficient of reduction of the maximum force in the deflected tensile test
D mm Minimum diameter of the coil of waxed and sheathed strand
i
E MPa Modulus of elasticity of the strand
F kN
...