1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationBS EN 15037-5:2013Precast concrete products Beam-and-block floor systemsPart 5: Lightweight blocks for simpleformworkBS EN 15037-5:2013 BRITISH STANDARDNational forewordThis Brit
2、ish Standard is the UK implementation of EN 15037-5:2013.The UK participation in its preparation was entrusted to TechnicalCommittee B/524, Precast concrete products.A list of organizations represented on this committee can beobtained on request to its secretary.This publication does not purport to
3、include all the necessaryprovisions of a contract. Users are responsible for its correctapplication. The British Standards Institution 2013. Published by BSI StandardsLimited 2013ISBN 978 0 580 69598 8ICS 91.100.30Compliance with a British Standard cannot confer immunity fromlegal obligations.This B
4、ritish Standard was published under the authority of theStandards Policy and Strategy Committee on 31 May 2013.Amendments issued since publicationDate Text affectedBS EN 15037-5:2013EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 15037-5 May 2013 ICS 91.100.30 English Version Precast concrete p
5、roducts - Beam-and-block floor systems - Part 5: Lightweight blocks for simple formwork Produits prfabriqus en bton - Systmes de planchers poutrelles et entrevous - Partie 5: Entrevous lgers de coffrage simple Betonfertigteile - Balkendecken mit Zwischenbauteilen - Teil 5: Leichte Zwischenbauteile f
6、r einfache Schalungen This European Standard was approved by CEN on 21 January 2013. 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. Up-to-date lists a
7、nd bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN member. This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the
8、 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, Former Yugosl
9、av Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN D
10、E NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: Avenue Marnix 17, B-1000 Brussels 2013 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 15037-5:2013: EBS EN 15037-5:2013EN 15037-5:2013 (E) 2 Contents Page The numbe
11、ring of clauses is strictly related to EN 13369, Common rules for precast concrete products, at least for the first three digits. When a clause of EN 13369 is not relevant or included in a more general reference of this standard, its number is omitted and this may result in a gap on numbering. Forew
12、ord . 4 Introduction 6 1 Scope 7 2 Normative references . 7 3 Terms and definitions 7 4 Requirements . 8 4.1 Material requirements 8 4.2 Production requirements . 9 4.3 Finished product requirements . 9 5 Test methods 13 5.1 Measuring of dimensions 13 5.2 Determination of the weight. 17 5.3 Mechanic
13、al strength . 17 5.4 Reaction to fire test 27 5.5 Thermal conductivity . 27 5.6 Thermal resistance of the floor system. 27 6 Evaluation of conformity 28 6.1 General . 28 6.2 Initial type tests 28 6.3 Factory production control 28 7 Marking . 29 8 Technical documentation 29 Annex A (normative) Sampli
14、ng for initial type testing and for independent testing of consignments . 30 A.1 General . 30 A.2 Sampling procedure . 30 Annex B (normative) Factory production control 32 Annex C (normative) Gravity loading tests 34 C.1 Test rig 34 C.2 Procedure . 37 C.3 Test report 38 Annex D (informative) Calibra
15、tion of mechanical strength testing machine 39 D.1 Sample 39 D.2 Procedure . 39 D.3 Validity 40 Annex E (normative) Compliance criteria for mechanical strength 41 Annex F (normative) Fire testing test for thin blocks 43 F.1 General . 43 F.2 Terminology . 43 F.3 Mounting and fixing . 43 F.4 End Use A
16、pplication Rules 45 BS EN 15037-5:2013EN 15037-5:2013 (E) 3 F.5 Additional conditions for polypropylene blocks . 46 Annex ZA (informative) Clauses of this European Standard addressing the provisions of the EU Construction Products Directive . 48 ZA.1 Scope and relevant characteristics . 48 ZA.2 Proc
17、edure for attestation of conformity of lightweight blocks for beam-and-block floor systems. 49 ZA.3 CE marking and labelling . 55 Bibliography 58 BS EN 15037-5:2013EN 15037-5:2013 (E) 4 Foreword This document (EN 15037-5:2013) has been prepared by Technical Committee CEN/TC 229 “Precast concrete pro
18、ducts”, the secretariat of which is held by AFNOR. 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 November 2013, and conflicting national standards shall be withdrawn at the latest by November 20
19、13. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. This document has been prepared under a mandate given to CEN by the European Commi
20、ssion and the European Free Trade Association, and supports essential requirements of EU Directive(s). For relationship with EU Directive(s), see informative Annex ZA, which is an integral part of this document. Eurocodes are taken as a common reference for design aspects. This document was examined
21、 and agreed upon by a liaison ad-hoc group with CEN/TC 250, particularly for its compatibility with structural Eurocodes. The installation of some structural precast concrete products is dealt with in EN 13670, Execution of concrete structures. EN 15037, Precast concrete products Beam-and-block floo
22、r systems is composed of the following parts: Part 1: Beams Part 2: Concrete blocks Part 3: Clay blocks Part 4: Expanded polystyrene blocks Part 5: Lightweight blocks for simple formwork (the present document) For common aspects of concrete products, reference is made to EN 13369, Common rules for p
23、recast concrete products, from which also the relevant requirements of EN 206-1, Concrete Part 1: Specification, performance, production and conformity are taken. The references to EN 13369 by CEN/TC 229 product standards are intended to make them homogeneous and to avoid repetitions of similar requ
24、irements. The program of standards for structural precast concrete products comprises the following standards, in some cases consisting of several parts: EN 1168, Precast concrete products Hollow core slabs EN 12794, Precast concrete products Foundation piles EN 12843, Precast concrete products Mast
25、s and poles EN 13224, Precast concrete products Ribbed floor elements EN 13225, Precast concrete products Linear structural elements BS EN 15037-5:2013EN 15037-5:2013 (E) 5 EN 13693, Precast concrete products Special roof elements EN 13747, Precast concrete products Floor plates for floor systems EN
26、 13978-1, Precast concrete products Precast concrete garages Part 1: Requirements for reinforced garages monolithic or consisting of single sections with room dimensions EN 14843, Precast concrete products Stairs EN 14844, Precast concrete products Box culverts EN 14991, Precast concrete products Fo
27、undation elements EN 14992, Precast concrete products Wall elements EN 15037-1, Precast concrete products Beam-and-block floor systems Part 1: Beams EN 15050, Precast concrete products Bridge elements EN 15258, Precast concrete products Retaining wall elements According to the CEN-CENELEC Internal R
28、egulations, the national standards organisations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland
29、, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. BS EN 15037-5:2013EN 15037-5:2013 (E) 6 Introduction The evaluation of conformity refers to the completed precast elements whi
30、ch are supplied to the market and covers all the production operations carried out in the factory. For design rules, reference is made to EN 1992-1-1. Additional complementary rules are provided where necessary. BS EN 15037-5:2013EN 15037-5:2013 (E) 7 1 Scope This European Standard deals with the re
31、quirements and the basic performance criteria for lightweight blocks used as formwork during the construction of the floor system. The blocks are used in conjunction with precast concrete beams in compliance with EN 15037-1, with or without cast-in-situ concrete for the construction of beam-and-bloc
32、k floor systems. This European Standard does not deal with blocks made in polystyrene, with or without tong, or combined with different materials where polystyrene contributes to more than 50 % of the mechanical resistance of the block. These blocks are covered by EN 15037-4, Precast concrete produc
33、ts Beam-and-block floor systems Part 4: Expanded polystyrene blocks. Examples of typology of floor systems are given in Annex B of EN 15037-1:2008. 2 Normative references The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its applicati
34、on. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 12390-4, Testing hardened concrete Part 4: Compressive strength Specification for testing machines EN 12667, Thermal performance of b
35、uilding materials and products Determination of thermal resistance by means of guarded hot plate and heat flow meter methods Products of high and medium thermal resistance EN 13369:2013, Common rules for precast concrete products EN 13501-1, Fire classification of construction products and buildings
36、 elements Part 1: Classification using data from reaction to fire tests EN 13823:2010, Reaction to fire tests for building products Building products excluding floorings exposed to the thermal attack by a single burning item EN 15037-1:2008, Precast concrete products Beam-and-block floor systems Par
37、t 1: Beams EN ISO 10211, Thermal bridges in building construction Heat flows and surface temperatures Detailed calculations (ISO 10211) EN ISO 11925-2, Reaction to fire tests Ignitability of products subjected to direct impingement of flame Part 2: Single-flame source test (ISO 11925-2) 3 Terms and
38、definitions For the purposes of this document, the following terms and definitions apply. 3.1 lightweight block for simple formwork block with no mechanical function in the final floor system Note 1 to entry: Its only mechanical function is that of formwork during the construction of the floor syste
39、m. Note 2 to entry: This block is mentioned in the present standard as lightweight block. See Figure 1. BS EN 15037-5:2013EN 15037-5:2013 (E) 8 Figure 1 Examples of lightweight blocks 3.2 cut block lightweight block, the form of which is obtained by cutting 3.3 moulded block lightweight block formed
40、 by moulding, either by injection of the material in a mould (injected blocks), or by pressing of the material in a mould (pressed block) 3.4 thin block lightweight block formed as a vault made of one or several layers of material 3.5 thick block lightweight block constituted by one or several mater
41、ials, which forms a filled product 3.6 family group of products for which the test results for one or more characteristics from any one product within the family are valid for all other products within the family Note 1 to entry: The definition of the family takes into account at least a same materi
42、al and a similar shape and geometry. 3.7 batch quantity of lightweight blocks defined by either a same reference of raw material, or similar parameters and conditions of manufacturing, or manufactured during the same day of production (or 24 h in case of continuous production), without exceeding a l
43、ength of 10 000 m 4 Requirements 4.1 Material requirements Only materials with established suitability shall be used. Lightweight block may be manufactured from: BS EN 15037-5:2013EN 15037-5:2013 (E) 9 a) wood material (plywood, fibreboards, Oriented Strand Board OSB); b) plastic material (polyethyl
44、ene PE, polypropylene PP); c) cardboard, cellulose; d) composite material (Glass Reinforced Plastic GRP); e) polymer concrete; f) metallic material; g) combination of the materials a) to f); h) one of the materials a) to f) combined with polystyrene, if this one contributes to not more than 50 % of
45、the mechanical resistance of the block. For a particular material, other than the ones mentioned above, the establishment of suitability may result from a European Standard which refers specifically to the use of this material for a similar use; in absence of a European Standard it may also result,
46、under the same conditions, from an ISO standard. Where this material is not covered by a European or an International Standard, or if it deviates from the requirements of these standards, the establishment of suitability may result from: the relevant national standards or provisions valid in the pla
47、ce of use of the product which refer specifically to the use of this material for a similar use; or a European Technical Approval specifically for the use of this material for a similar use. 4.2 Production requirements Only the materials described in 4.1 shall be used in the production of lightweigh
48、t blocks. 4.3 Finished product requirements 4.3.1 Geometrical properties The dimensions shall be verified according to 5.1.1. For technical documentation, see Clause 8. 4.3.1.1 Production tolerances 4.3.1.1.1 Dimensional tolerances The tolerances on the dimensions are given in Table 1. An example of
49、 the dimensions is given in Figure 2. BS EN 15037-5:2013EN 15037-5:2013 (E) 10 Key 1 block width l 6 width of the support nib ln(when relevant) 2 block height h for blocks witha rebate or end plates for beams 7 height of the support nib hn3 height above beam support h18 rebate width lr(when relevant) 4 chamfer width lc9 rebate height hr(when relevant) 5 chamfer height hc10 minimal thickness emfor thin blocks Figure 2 Dimensions of the lightweight block Table 1
