SIST EN 40-4:2006
(Main)Lighting columns - Part 4: Requirements for reinforced and prestressed concrete lighting columns
Lighting columns - Part 4: Requirements for reinforced and prestressed concrete lighting columns
This European Standard specifies requirements for reinforced and prestressed concrete lighting columns. It applies to columns not exceeding 20 m height for post top lanterns and columns with brackets not exceeding 18 m height for side entry lanterns.
This European Standard specifies:
a) performance related to the essential requirement of resistance to horizontal (wind) loads, measured in accordance with EN 40-3;
b) performance under vehicle impact (passive safety) in support of the Essential Requirement No. 4 Safety in use, measured in accordance with the corresponding test methods included in this document or available in separate European Standards.
Lichtmaste - Teil 4: Anforderungen an Lichtmaste aus Stahl- und Spannbeton
Dieses Dokument legt Anforderungen an Lichtmaste aus Stahl und Spannbeton fest. Es gilt für gerade Maste für Aufsatzleuchten, die eine Höhe von 20 m nicht überschreiten, und für Auslegermaste mit Ansatzleuchten, die eine Höhe von 18 m nicht überschreiten.
In diesem Dokument werden festgelegt:
a) das Verhalten in Bezug auf die grundlegende Anforderung an den Widerstand gegen horizontale (Wind )Lasten, die nach EN 40 3 gemessen werden;
b) das Verhalten bei Fahrzeugaufprall (passive Sicherheit) bei Anwendung der grundlegenden Anforderung Nr 4 „Nutzungssicherheit“, die nach den entsprechenden, in diesem Dokument oder in gesonderten Europäischen Normen beschriebenen Prüfverfahren bestimmt wird.
Candélabres d'éclairage public - Partie 4: Prescriptions pour les candélabres d'éclairage public en béton armé et en béton précontraint
Le présent document spécifie les prescriptions relatives aux candélabres d'éclairage public en béton armé et
en béton précontraint. Il s'applique aux candélabres ne dépassant pas 20 m de haut, pour les luminaires
montés au sommet et aux candélabres a crosses ne dépassant pas 18 m de haut, pour les luminaires a
entrée latérale.
Le présent document spécifie :
a) les performances liées a l'exigence essentielle de résistance aux charges horizontales (dues au vent),
mesurées conformément a l'EN 40-3 ;
b) les performances en cas de choc d'un véhicule (sécurité passive) a l'appui de l'exigence essentielle n° 4,
Sécurité en service, mesurées conformément aux méthodes d'essai correspondantes comprises dans le
présent document ou disponibles dans d'autres Normes européennes.
Drogovi za razsvetljavo – 4. del: Zahteve za drogove za razsvetljavo iz armiranega in prednapetega betona
General Information
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Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Lighting columns - Part 4: Requirements for reinforced and prestressed concrete lighting columnsDrogovi za razsvetljavo – 4. del: Zahteve za drogove za razsvetljavo iz armiranega in prednapetega betonaCandélabres d'éclairage public - Partie 4: Prescriptions pour les candélabres d'éclairage public en béton armé et en béton précontraintLichtmaste - Teil 4: Anforderungen an Lichtmaste aus Stahl- und SpannbetonTa slovenski standard je istoveten z:EN 40-4:2005SIST EN 40-4:2006en93.080.4091.100.30ICS:SLOVENSKI
STANDARDSIST EN 40-4:200601-maj-2006
EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 40-4December 2005ICS 93.080.40Supersedes EN 40-4:1982
English VersionLighting columns - Part 4: Requirements for reinforced andprestressed concrete lighting columnsCandélabres d'éclairage public - Partie 4: Prescriptionspour les candélabres d'éclairage public en béton armé eten béton précontraintLichtmaste - Teil 4: Anforderungen an Lichtmaste ausStahl- und SpannbetonThis European Standard was approved by CEN on 27 October 2005.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the Central Secretariat or to any CEN member.This European Standard exists in three official versions (English, French, German). A version in any other language made by translationunder the responsibility of a CEN member into its own language and notified to the Central Secretariat has the same status as the officialversions.CEN members are the national standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France,Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia,Slovenia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMITÉ EUROPÉEN DE NORMALISATIONEUROPÄISCHES KOMITEE FÜR NORMUNGManagement Centre: rue de Stassart, 36
B-1050 Brussels© 2005 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 40-4:2005: E
EN 40-4:2005 (E) 2 Contents Page Foreword.3 1 Scope.5 2 Normative references.5 3 Terms and definitions.5 4 Materials.6 5 Geometrical properties.6 6 Design and design verification.6 7 Construction and properties.7 8 Protection against mechanical impact.8 9 Apertures and cable ways.9 10 Marking and labelling.9 11 Technical documentation.9 12 Conformity control.10 Table 1 — Control sample size related to lot size.11 Figure 1 — Steel gauge for verifying straightness.12 13 Test parameters.13 14 Performance under vehicle impact – passive safety.13 Annex A (normative)
Concrete cover.14 Table A.1 — Minimum concrete cover.14 Annex B (normative)
Inspection scheme.15 Table B.1 — Finished product inspection.15 Annex C (normative)
Initial type tests.16 Annex Y (informative)
Choice of CE marking method.16 Annex ZA (informative)
Clauses of this European Standard addressing essential requirements or other provisions of the EU Construction Products Directive.18 Table ZA.1 — Relevant clauses.19 Table ZA.2 — System of attestation of conformity.20 Table ZA.3 — Assignment of evaluation of conformity tasks for concrete lighting columns under system 1.20 Figure ZA.1 — Example of simplified label.23 Figure ZA.2 — Example of CE marking with Method 1.24 Figure ZA.3 — Example of CE marking with Method 2 (verification by calculation).25 Figure ZA.4 — Example of CE marking with Method 2 (verification by testing).26 Figure ZA.5 — Example of CE marking with Method 3.27 Bibliography.28
EN 40-4:2005 (E) 3 Foreword This document (EN 40-4:2005) has been prepared by Technical Committee CEN/TC 50 “Lighting columns and spigots”, the secretariat of which is held by BSI. 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 June 2006, and conflicting national standards shall be withdrawn at the latest by August 2007. This document supersedes EN 40-4:1982. This document has been prepared under Mandate M/111 “Circulation fixtures” given to CEN by the European Commission and the European Free Trade Association and supports essential requirements of the EU Directive 89/106/EEC. For relationship with EU Directive 89/106/EEC see informative Annex ZA, which is an integral part of this document. For common aspects reference is made to EN 13369:2004, Common rules for precast products, from which also the relevant requirements of the EN 206-1:2000, Concrete — Part 1: Specification, performances, production and conformity are taken. The references to EN 13369:2004 by precast concrete product standards are intended to make them homogeneous and to avoid repetitions of similar requirements. This document defines in Annex ZA the application methods of CE marking to products designed using the relevant Eurocodes (normally EN 1992-1-1:2004 and EN 1992-1-2). Where, in default of applicability conditions of Eurocodes to the works of destination, design provisions other than Eurocodes are used for mechanical strength and/or fire resistance, the conditions to affix CE marking to the product are described in ZA.3.5. This document is the fourth in a series relating to specifications for “Lighting columns”. At present the Parts of this standard are as follows: Part 1: Definitions and terms Part 2: General requirements and dimensions Part 3: Design and verification
3-1: Specification for characteristic loads
3-2: Verification by testing
3-3: Verification by calculation Part 4: Requirements for reinforced and prestressed concrete lighting Part 5: Requirements for steel lighting columns Part 6: Requirements for aluminium lighting columns Part 7: Requirements for fibre reinforced polymer composite lighting columns
EN 40-4:2005 (E) 4 According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.
EN 40-4:2005 (E) 5 1 Scope This document specifies requirements for reinforced and prestressed concrete lighting columns.
It applies to columns not exceeding 20 m height for post top lanterns and columns with brackets not exceeding 18 m height for side entry lanterns. This document specifies: a) performance related to the essential requirement of resistance to horizontal (wind) loads, measured in accordance with EN 40-3; b) performance under vehicle impact (passive safety) in support of the Essential Requirement No. 4 Safety in use, measured in accordance with the corresponding test methods included in this document or available in separate European Standards. 2 Normative references The following referenced documents are indispensable for the application 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 40-1:1991, Lighting columns — Part 1: Definitions and terms EN 40-2:2004, Lighting columns — Part 2: General requirements and dimensions EN 40-3-1, Lighting columns — Part 3-1: Design and verification — Specification for characteristic loads EN 40-3-2, Lighting columns — Part 3-2: Design and verification — Verification by testing EN 40-3-3, Lighting columns — Part 3-3: Design and verification — Verification by calculation EN 1992-1-1:2004, Eurocode 2: Design of concrete structures — Part 1-1: General rules and rules for buildings
EN 10204, Metallic products — Types of inspection documents EN 12390-5, Testing hardened concrete — Part 5: Flexural strength of test specimens EN 12767, Passive safety of support structures for road equipment — Requirements and test methods EN 13369:2004, Common rules for precast concrete products EN 62262, Degrees of protection provided by enclosures for electrical equipment against external mechanical impacts (IK code) 3 Terms and definitions For the purposes of this document, the terms and definitions given in EN 40-1:1991, EN 1992-1-1:2004, EN 13369:2004 and the following apply. 3.1 spun concrete concrete compacted by pressure and vibration using a rotating mould (centrifugal force)
EN 40-4:2005 (E) 6 3.2 product family number of lighting columns, for the purposes of testing and/or calculation (including ITT and FPC testing), where the manufacturer can demonstrate that the results for a characteristic from any one product in the family are representative for all other lighting columns within that same family. A product may be in different families for different characteristics. NOTE At the plenary meeting of CEN/TC 50 on 5th October 2004 the above definition of product family was agreed. It was also agreed that it should be added to EN 40-1 on next revision.
As it is not in the current version of EN 40-1, it is repeated above. 4 Materials Materials shall conform to EN 13369:2004, 4.1. 5 Geometrical properties 5.1 General Product dimensions shall conform to EN 40-2 and where applicable defined on the basis of the specific design and calculations. 5.2 Production tolerances Production tolerances shall conform to EN 40-2, the total length being measured from ground level. Dimensions shall be measured in accordance with 13.2.2. The tolerance on column mass shall be ± 10 %. 6 Design and design verification The column shall be designed to safely sustain the dead loads and the wind loads specified in EN 40-3-1, and shall be verified in accordance with one of the following methods: a) Clauses 7.1 and 12.2.2
b) Compliance with 7.1 and EN 13369 (for common rules), and the following: • geometrical data (main dimensions and main cross sections, including tolerances) of the lighting column as Clause 5 and 7.5; and
• properties of the materials and constituents products used that are needed to determine, according to the national provisions valid in the place of use, or possible use, the resistance to horizontal loads.
c) Compliance with the purchaser's specific design It may be assumed by the manufacturer that where he is requested to produce the lighting column following the provisions of the client’s specific design details supplied by the purchaser, such provisions are compliant with requirements for regulatory marking in the place of intended destination.
EN 40-4:2005 (E) 7 7 Construction and properties 7.1 Concrete The production of concrete shall conform to EN 13369:2004, 4.2. The concrete used for reinforced concrete columns must conform to compressive strength class C 30/37 or higher in accordance with EN 206-1. The concrete used for prestressed concrete lighting columns shall conform to compressive strength class C 35/45 or higher. 7.2 Surface characteristics When determined in accordance with 13.2.1, the surface of the column shall be free from damage that may adversely affect its structural integrity or reduce its durability. In the absence of regulatory requirements or specifications to the contrary, blemishes or surface irregularities are admissible, but shall be limited to: a) diameter ≤ 25 mm; b) depth ≤ 5 mm providing the cover is not reduced below the minimum values specified in 7.3. The maximum crack width caused by shrinkage or temperature in the cement rich layer shall not exceed 0,2 mm. The finishing of the surface shall be considered acceptable providing that the requirements of this document are not adversely affected. 7.3 Durability and cover to reinforcement The requirements for durability shall be in accordance with EN 13369:2004, 4.3.7. For products with a design working life not exceeding 30 years, Annex A shall apply. 7.4 Dangerous substances Materials used in products shall not release any dangerous substances in excess of the maximum permitted levels specified in a relevant European Standard for the material. NOTE Attention is drawn to the maximum permitted levels of dangerous substances as governed by national regulations of the Member State of destination. 7.5 Detailing 7.5.1 Spacing of bars Where verified by testing in accordance with EN 40-3-2, the minimum space between individual bars and/or external parts of bundles of reinforcing material shall be at least: a) with respect to casting: the maximum aggregate size; b) with respect to anchoring and bonding: 1) 2/3 of the relevant equivalent diameter of reinforcing material (for reinforcing material);
EN 40-4:2005 (E) 8 2) the nominal diameter of tendons with a minimum of 8 mm (for prestressing material). The above rules shall not apply to splices. 7.5.2 Transverse reinforcement 7.5.2.1 Reinforced concrete columns (for spun concrete see 7.5.2.3) The maximum pitch of spirals or spacing of link shall result either from the design or from type tests. In particular, when load-bearing capacity of the column is verified by testing in accordance with EN 40-3-2, the maximum distance between transverse reinforcements units shall be according to the results, with a maximum of 1,50 m. 7.5.2.2 Prestressed concrete columns (for spun concrete see 7.5.2.3) Where verified by tests defined in EN 40-3-2, transverse reinforcement shall not be necessary. 7.5.2.3 Reinforced or prestressed spun concrete columns The minimum transverse reinforcement ratio shall be: a) for column diameters at the foot equal to or greater than 800 mm, 0,15 % of the longitudinal concrete section; b) for column diameters at the foot less than 400 mm, 0,05 % of the longitudinal concrete section; c) for column diameters at the foot equal to or less than 800 mm and greater than 400 mm by linear interpolation between the above mentioned values. 8 Protection against mechanical impact A type test shall be carried out on each type of column base, or part, provided that each end of the part extends at least 0,3 m above and below the door opening. The test shall conform to an impact protection category of IK08 as specified in EN 62262 with the door fitted. The test equipment shall be either impact pendulum hammer or vertical free fall hammer.
The manufacturer shall declare the test method used. NOTE A single test method will be adopted when the EN 40 series of product standards is revised. The number of impacts shall be five and shall be applied around the circumference at the mid height of the door. For circular columns these shall be equally spaced around the remaining circumference excluding the door. For octagonal columns these shall be on each of the adjacent faces excluding the door. After testing, no visible crack shall appear. The test shall validate those products with an outside diameter (or flat dimension) equal to or less than the diameter being tested, with the same wall thickness and material strength. For mechanical impact test, a type shall be defined by the shape, the dimensions and type of concrete/reinforcement of the section at mid door height. For sections other than circular or octagonal, the provisions defined above shall apply.
EN 40-4:2005 (E) 9 9 Apertures and cable ways 9.1 Door openings and cable entry slots The door opening and the cable entry slots shall conform to EN 40-2:2004, 4.3 and 4.4. Door openings shall be designed in accordance with EN 13369:2004, 4.3.3. 9.2 Internal finish and sharp edges 9.2.1 Cableways Cableways shall conform to the requirements of EN 40-2:2004, 4.4.4. 9.2.2 Access points All access points used for the installation and fitting of electrical equipment shall be free from rough edges and burrs. 10 Marking and labelling All columns and brackets shall be clearly and durably marked with: a) name or symbol of the manufacturer; b) year of manufacture; c) reference to this document; d) unique product code. The marking shall be formed either in the material or by painting, hard stamping or by a securely fixed label. Where applicable, such marking shall not obscure or lead to confusion with regulatory marking. NOTE For CE marking refer to Annex ZA. 11 Technical documentation 11.1 General The detailing of the column, including geometrical data with the complementary properties of materials and inserts, shall be given in technical documentation, which includes the construction data, such as the dimensions, tolerances, layout of reinforcement, the concrete cover, required support conditions and lifting conditions. For columns designed in accordance with 6 a), mounting and fixing details shall be provided. The composition of technical documentation is given in EN 13369:2004, Annex O.
EN 40-4:2005 (E) 10 11.2 Handling, storage and transportation The manufacturer shall give information for handling and storage to prevent damage or deterioration. The manufacturer shall also give information for supporting and attaching the column segment to the vehicle used for transport. 11.3 Traceability Delivered product or products batches shall be definitely identifiable and traceable with regard to their production data. For this purpose, the manufacturer shall establish and maintain for seven years the records required in the relevant technical specification, and shall mark the products or their delivery documents accordingly. 12 Conformity control 12.1 General Conformity of the product with the requirements shall be demonstrated by: initial type testing; factory production control. 12.2 Evaluation of conformity 12.2.1 Factory production control Factory production control shall be in accordance with EN 13369:2004, 6.3. Inspection procedures for columns shall be conducted in accordance with Annex B and EN 13369:2004, Annexes D1, D3 and D.5. The test on the potential compressive strength in EN 13369:2004, Annex D.3.1, item 8 shall be replaced by flexural strength test (in accordance with EN 12390-5) on moulded specimens, if the required flexural strength has been determined during type testing. 12.2.2 Initial type testing 12.2.2.1 General Type testing shall be in accordance with EN 13369:2004, 6.2 and Annex C of this document. Tests previously performed in accordance with the provisions of this document (same product, same characteristic(s), test method or more demanding test method, sampling procedure, system of attestation of conformity, etc.) shall be taken into account where applicable. Type testing for mechanical impact shall be in accordance with Clause 8.
The manufacturer shall choose one of the three following methods. 12.2.2.2 Verification by calculation Verification by calculation shall be conducted in accordance with EN 13369:2004, 4.3.3.2 and EN 40-3-3 for each product family defined by the manufacturer.
EN 40-4:2005 (E) 11 12.2.2.3 Verification by calculation aided by testing Verification by calculation aided by testing shall be conducted in accordance with EN 13369:2004, 4.3.3.3 and EN 40-3-2. Three samples shall be tested.
The tested samples shall cover the range of design stress of the products’ sections for each product family defined by the manufacturer. When this calculation method is applied to other plants, with the same production conditions, complementary verification tests covering the stress range shall be performed on two sample columns of the yet untested production from each other plant. Type test result shall be considered positive when each individual test is positive. 12.2.2.4 Verification by testing Verification by testing shall be conducted in accordance with EN 13369:2004, 4.3.3.4 and EN 40.3.2. Two tests shall be performed (one on a product with approximately the maximum length, one with approximately the smallest length) for each product family defined by the manufacturer. Type test result shall be considered positive when each individual test is positive. 12.3 Sampling For random sampling the minimum number of articles from each lot to form the control sample shall conform to Table 1. A lot shall consist of columns with or without brackets of the same nominal height/projection, type and design strength. Table 1 — Control sample size related to lot size Number of articles in the lot Minimum number of articles in the control sample 1 to 3 1 4 to 500 3 501 to 1 200 5
12.4 Dimensional verification All dimensional parameters given in EN 40-2 and applicable to the lot shall be verified. These include: a) length/projection; b) cross-section – at each end and at all changes in cross-section; c) door opening; d) cable entry slot; e) planting depth; f) flange plate dimensions; g) base plate dimensions; h) lantern fixing diameter, length and angle. Tolerances shall be in accordance with EN 40-2:2004, Clause 5.
EN 40-4:2005 (E) 12 Measurements shall be taken with the column and/or bracket in the horizontal position. Dimensions shall be verified using a measuring tape or gauge, which shall be checked for accuracy in accordance with a documented calibration procedure. 12.5 Straightness verification When any article in the control sample indicates nonconformity, it shall be verified by Method A and/or Method B. For both methods the column shall be placed horizontally on flat ground or timber bearers with the face showing the greatest curvature at 90° to the vertical plane. Method A: A line shall be fixed at each end of the column above the maximum bow, tautened, and measurements taken from the line to the column surface with rule or tape measure at a minimum of six locations at or near the apparent position of maximum curvature. Method B: A gauge as shown in Figure 1 shall be placed with edge ‘X’ on the suspect surface normal to the axis of the column and moved along that surface at intervals not exceeding 1 m. For polygonal columns the two adjacent surfaces shall also then be checked and for circular columns the surfaces at 15° ± 5° on each side of the line originally checked. 1 m==3 mm1 Key 1 Edge X Figure 1 — Steel gauge for verifying straightness
12.6 Material verification The material specification shall be verified by a manufacturer’s inspection in accordance with EN 10204. Records shall be in place to establish that the verified material(s) have been used in the articles in the lot.
12.7 Design verification Design shall be based on loads specified in accordance with EN 40-3-1, and shall be verified in accordance with Clause 6.
EN 40-4:2005 (E) 13 13 Test parameters 13.1 Tests on concrete Tests on concrete shall be performed in accordance with EN 13369:2004, 5.1. 13.2 Measuring of dimensions and surface characteristics 13.2.1 Appearance of surface finish For units made with special surface finishes and where required by the purchaser, acceptance testing shall be on the basis of comparison with a sample prepared by the manufacturer and approved by the purchaser. This comparison shall be made under daylight and dry conditions and from a distance corresponding to normal usage, the distance to be no greater than the column length. 13.2.2 Measurement of dimensions Dimensions shall be measured with devices having an accuracy of ± 1,0 mm, except for column length. For column length the accuracy shall be ± 0,5 %. The measuring devices and testing methods shall be described in the manufacturer’s quality documents. 13.3 Concrete cover The method of testing of the concrete cover of the reinforcement shall be described in the factory production control. It shall be performed with an accuracy of ± 2,0 mm. The testing of the concrete cover of the reinforcement shall be recorded as destructive or non-destructive. 14 Performance under vehicle impact – passive safety Where the manufacturer declares a performance for passive safety, the performance of the lighting column regarding passive safety under vehicle impact shall conform to the classification given in EN 12767. If the manufacturer does not declare a performance for passive safety, the column shall be deemed to be class 0 in accordance with EN 12767. NOTE See Annex ZA for conditions where NPD may be used.
EN 40-4:2005 (E) 14 Annex A (normative)
Concrete cover For products with a design working life not exceeding 30 years, the ambient conditions shall be in accordance with EN 13369:2004, Table A.1 and the minimum concrete cover shall be as specified in Table A.1 and tested in accordance with 13.3. Table A.1 — Minimum concrete cover Minimum concrete cover mm For longitudinal steels For stirrups or spirals Ambient Ambient Ambient Ambient conditionsconditionsconditionsconditions Exposure Exposure Exposure Exposure classes classes classes classes aaaa ≥≥≥≥ C40/50
C40/50
C40/50
C40/50 bbbb < C40/50 < C40/50 < C40/50 < C40/50 bbbb
≥≥≥≥ C40/50
C40/50
C40/50
C40/50 bbbb
< C40/50 < C40/50 < C40/50 < C40/50 bbbb
C XC2/XC3 15 20 10 15 D XC4 15 20 10 15 E XD1/XS1 20 25 15 20 F XD2/XS2 25 30 20 25 a Exposure class is defined in EN 206-1:2000, 4.1. b Compressive strength class is defined in EN 206-1:2000, 4.3.1.
For bar diameters greater than 20 mm the values given in Table A.1 shall be increased by 5 mm. When steel with corrosion protection or non-ferrous fibre reinforcement is used, the concrete cover given in Table A.1 may be reduced by 5 mm. Inside hollow core columns the concrete cover given in Table A.1 may be decreased by 5 mm, but the minimum internal concrete cover shall not be less than 8 mm. When the concrete class is ≥ C50/60 and its water absorption is less than 3,5 % the concrete cover given in Table A.1 may be reduced by 5 mm, but the minimum external concrete cover shall not be less than 15 mm for longitudinal steel and shall not be less than 10 mm for stirrups or spirals. For products with a working life of 15 years and a concrete class ≥ C40/50 the concrete cover given in Table A.1 may be reduced by 5 mm, but the minimum concrete cover shall not be less than 10 mm for longitudinal steel and shall not be less than 8 mm for stirrups or spirals.
EN 40-4:2005 (E) 15 Annex B (normative)
Inspection scheme This Annex is complementary to EN 13369:2004, D.4. The finished product inspection scheme is described in Table B.1. Table B.1 — Finished product inspection
Subject Method Purpose Frequency 1 Compressive strength of concrete a In accordance with EN 13369:2004, 5.1.1 Conformity with the requirements of this document 1 test of 3 specimens every production week 2 Final inspection of the product Visual
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