SIST EN 14474:2005
(Main)Precast concrete products - Concrete with wood-chips as aggregate - Requirements and test methods
Precast concrete products - Concrete with wood-chips as aggregate - Requirements and test methods
This document specifies common requirements for wood-chip concrete, used in precast wood-chip concrete products. It is intended to be used when preparing documents for wood-chip concrete products. Wood-chip concrete product standards will define specific requirements, which may be additional to those given in this document. Product standards will give any limiting values.
Examples for the use of wood-chip concrete are: hollow blocks for flooring systems, shuttering blocks, slabs, facing elements, acoustic and/or thermal facing elements, partitioning elements, wine racks, etc.
It is not applicable to concrete for structural masonry units covered by EN 771-3 and their ancillary components.
Betonfertigteile - Holzspanbeton - Anforderungen und Prüfverfahren
Dieses Dokument legt allgemeine Anforderungen an Holzspanbeton für Fertigteile aus Holzspanbeton fest. Es gilt für die Erstellung von Dokumenten für Produkte aus Holzspanbeton, in denen spezielle Anforderungen, die die in diesem Dokument angegebenen Anforderungen ergänzen, festgelegt sind. Die Produktnormen werden die erforderlichen Grenzwerte enthalten.
Beispiele für die Anwendung von Holzspanbeton sind: Hohlblöcke für Decken, Schalungen, Platten, Verblendelemente, Verblendelemente mit schall- und/oder wärmeschutztechnischen Eigenschaften, Trennelemente, Gestelle für Wein, usw.
Dieses Dokument gilt nicht für Beton für Mauersteine nach EN 771-3 und die zugehörigen Formsteine.
Produits préfabriqués en béton - Béton utilisant des copeaux de bois comme granulat - Exigences et méthodes d'essai
Le présent document spécifie les prescriptions communes relatives au béton de bois utilisé dans les produits
préfabriqués en béton de bois. Il est destiné a etre utilisé lors de la préparation des normes relatives aux produits
préfabriqués en béton de bois. Ces normes définiront des prescriptions spécifiques qui pourront s'ajouter a celles
énoncées dans le présent document. Les normes de produits énonceront les valeurs limites le cas échéant.
Exemples d'utilisation du béton de bois : Entrevous, blocs a bancher, dalles, éléments de parement, éléments de
parement acoustiques et/ou thermiques, éléments de cloisonnement, casiers a bouteilles etc.
Le présent document n'est pas applicable aux bétons pour éléments de maçonnerie structuraux couverts par
l'EN 771-3 et leurs accessoires.
Montažni betonski izdelki – Beton z lesnimi drobci kot agregatom – Zahteve in preskusne metode
General Information
Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Montažni betonski izdelki – Beton z lesnimi drobci kot agregatom – Zahteve in preskusne metodeBetonfertigteile - Holzspanbeton - Anforderungen und PrüfverfahrenProduits préfabriqués en béton - Béton utilisant des copeaux de bois comme granulat - Exigences et méthodes d'essaiPrecast concrete products - Concrete with wood-chips as aggregate - Requirements and test methods91.100.30Beton in betonski izdelkiConcrete and concrete productsICS:Ta slovenski standard je istoveten z:EN 14474:2004SIST EN 14474:2005en01-februar-2005SIST EN 14474:2005SLOVENSKI
STANDARD
SIST EN 14474:2005
EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 14474December 2004ICS 91.100.30English versionPrecast concrete products - Concrete with wood-chips asaggregate - Requirements and test methodsProduits préfabriqués en béton - Béton utilisant descopeaux de bois comme granulat - Exigences et méthodesd'essaiBetonfertigteile - Holzspanbeton - Anforderungen undPrüfverfahrenThis European Standard was approved by CEN on 15 November 2004.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© 2004 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 14474:2004: ESIST EN 14474:2005
EN 14474:2004 (E) 2 Contents Page Foreword.3 1 Scope.4 2 Normative references.4 3 Terms and definitions.4 4 Requirements.5 5 Tests.6 6 Evaluation of conformity.8 Annex A (normative)
Determination of frost-resistance or frost-resistance in the presence of de-icing salts.10 Bibliography.13 SIST EN 14474:2005
EN 14474:2004 (E) 3 Foreword This document (EN 14474:2004) has been prepared by Technical Committee CEN/TC 229 “Precast concrete products”, 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 June 2005, and conflicting national standards shall be withdrawn at the latest by June 2005. NOTE The term: "Concrete with wood-chips as aggregate" is hereinafter referred to as: "wood-chip concrete". This document gives general requirements for wood-chip concrete products. Product standards may adopt these requirements, when appropriate to the product or the application. 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.
SIST EN 14474:2005
EN 14474:2004 (E) 4 1 Scope This document specifies common requirements for wood-chip concrete, used in precast wood-chip concrete products. It is intended to be used when preparing documents for wood-chip concrete products. Wood-chip concrete product standards will define specific requirements, which may be additional to those given in this document. Product standards will give any limiting values. Examples for the use of wood-chip concrete are: hollow blocks for flooring systems, shuttering blocks, slabs, facing elements, acoustic and/or thermal facing elements, partitioning elements, wine racks, etc. It is not applicable to concrete for structural masonry units covered by EN 771-3 and their ancillary components. 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 772-11, Methods of test for masonry units - Part 11: Determination of water absorption of aggregate concrete, manufactured stone and natural stone masonry units due to capillary action and the initial rate of water absorption of clay masonry units EN 772-14, Methods of test for masonry units - Part 14: Determination of moisture movement of aggregate concrete and manufactured stone masonry units EN 12390-3, Testing hardened concrete – Part 3: Compressive strength of test specimens EN 12390-5, Testing hardened concrete – Part 5: Flexural strength of test specimens EN 12664, Thermal performance of building materials and products - Determination of thermal resistance by means of guarded hot plate and heat flow meter methods - Dry and moist products of medium and low thermal resistance EN 12779:2004, Safety of woodworking machines – Chip and dust extraction systems with fixed installation – Safety related performances and safety requirements EN 13501-1, Fire classification of construction products and building elements - Part 1: Classification using test data from reaction to fire tests EN 13823, Reaction to fire tests for building products – Building products excluding floorings exposed to the thermal attack by a single burning item
EN ISO 354, Acoustics - Measurement of sound absorption in a reverberation room (ISO 354:2003) EN ISO 10456, Building materials and products - Procedures for determining declared and design thermal values (ISO 10456:1999) 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1 wood-chip concrete open structure concrete with 50% to 90% by volume (according to use) of the aggregate being wood-chips SIST EN 14474:2005
EN 14474:2004 (E) 5 3.2 wood-chip aggregates as defined in EN 12779:2004, 3.1.3 4 Requirements 4.1 Materials The specifications of the materials to be used shall be included in the production control documentation (see 6.3). If appropriate documents are available, they shall be used except that aggregates need not comply with grading requirements. If not available, the manufacturer shall specify the materials and have data on their suitability. 4.2 Properties of wood-chip concrete 4.2.1 General The main properties of wood-chip concrete are defined below. Product standards may identify additional properties. 4.2.2 Density The oven-dry density shall be between 450 kg/m3 and 1 200 kg/m3 according to use. The design value of dry density shall be given and determined according to 5.2. The mean oven-dry density of wood-chip concrete shall not deviate by more than ± 10 % from the declared value. Individual values of oven-dry density shall not deviate by more than ±
15 % from the declared value. 4.2.3 Strength When required, flexural and/or compressive strength shall be determined according to 5.3. 4.2.4 Thermal conductivity When required, thermal conductivity (λ) shall be given as a design value and determined according to 5.4. 4.2.5 Sound absorption When required, the sound-absorption coefficient shall be given and determined according to 5.5. 4.2.6 Frost-resistance When required, the frost-resistance or the frost-resistance in the presence of de-icing salts of unprotected wood-chip concrete shall be declared on the basis of long-term experience or testing. Tests shall be carried out according to 5.6. Loss of mass shall be not more than 10 % and shall not affect more than 5 mm depth. 4.2.7 Reaction to fire When required, reaction to fire shall be given and determined according to 5.7. SIST EN 14474:2005
EN 14474:2004 (E) 6 4.2.8 Shrinkage and expansion When required, shrinkage and expansion of wood-chip concrete shall be given and determined according to 5.8. 4.2.9 Water absorption When required, water absorption by capillarity shall be given and determined according to 5.9. 5 Tests 5.1 Test specimens 5.1.1 General The properties of wood-chip concrete may be tested on specimens either cast from product mixes or cut from products. Methods of preparing test specimens cut from products shall be as given in test stan
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