EN 14474:2004
(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 à être 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 à 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 à bancher, dalles, éléments de parement, éléments de
parement acoustiques et/ou thermiques, éléments de cloisonnement, casiers à 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
- Status
- Published
- Publication Date
- 14-Dec-2004
- Technical Committee
- CEN/TC 229 - Precast concrete products
- Current Stage
- 9093 - Decision to confirm - Review Enquiry
- Start Date
- 03-Dec-2024
- Completion Date
- 14-Apr-2025
- Directive
- 89/106/EEC - Construction products
Overview
EN 14474:2004 - "Precast concrete products - Concrete with wood‑chips as aggregate - Requirements and test methods" (CEN) defines common requirements and test methods for wood‑chip concrete used in precast products. It covers material and product‑level properties, specimen preparation, testing procedures and conformity assessment. The standard applies to open‑structure concrete containing 50% to 90% by volume wood‑chips and is not applicable to structural masonry units covered by EN 771‑3.
Key topics and requirements
- Definition and scope
- Wood‑chip concrete (open structure) and intended precast uses (blocks, slabs, facing, acoustic/thermal elements, partitioning, wine racks, etc.).
- Material and production control
- Manufacturer must document material specifications and maintain a documented factory production control system.
- Initial type testing required before placing new product types on the market; retesting after major changes in raw materials or processes.
- Principal properties and declared values
- Oven‑dry density: design value must be declared; range 450–1 200 kg/m3. Mean oven‑dry density ±10% from declared value; individual specimens ±15%.
- Mechanical strength: flexural/compressive strength when required (tests per EN 12390‑5 and EN 12390‑3).
- Thermal conductivity (λ): measured per EN 12664 and converted per EN ISO 10456.
- Sound absorption: measured per EN ISO 354.
- Frost resistance: when required, declared on long‑term experience or tested (Annex A). Loss of mass ≤10% and damage ≤5 mm depth.
- Reaction to fire: assessed per EN 13823 and classified per EN 13501‑1.
- Shrinkage/expansion and capillary water absorption: tested per EN 772‑14 and EN 772‑11 respectively.
- Specimen preparation and testing
- Cast specimen dimensions: 800 × 150 × 150 mm (±5 mm); cubes 150 mm may be cut from these. Drying to constant mass at (105 ± 2) °C for density tests. Frost test procedure (Annex A) uses 24 freeze/thaw cycles and precise conditioning.
Applications and users
Who uses EN 14474:
- Precast manufacturers producing wood‑chip concrete products
- Product standards developers and conformity assessment bodies
- Testing laboratories performing mechanical, thermal, acoustic, durability and frost tests
- Architects, engineers and specifiers selecting lightweight, insulating or acoustic precast elements
- Compliance officers documenting factory production control and declared values
Practical uses:
- Specifying performance (density, thermal insulation, sound absorption, frost resistance)
- Preparing product standards and technical data sheets
- Ensuring consistent production and third‑party testing for market entry
Related standards
- EN 12390‑3, EN 12390‑5 (concrete strength tests)
- EN 12664, EN ISO 10456 (thermal)
- EN ISO 354 (acoustics)
- EN 772‑11, EN 772‑14 (masonry tests)
- EN 13823, EN 13501‑1 (reaction to fire)
- EN 771‑3 (structural masonry - not applicable)
Frequently Asked Questions
EN 14474:2004 is a standard published by the European Committee for Standardization (CEN). Its full title is "Precast concrete products - Concrete with wood-chips as aggregate - Requirements and test methods". This standard covers: 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.
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.
EN 14474:2004 is classified under the following ICS (International Classification for Standards) categories: 91.100.30 - Concrete and concrete products. The ICS classification helps identify the subject area and facilitates finding related standards.
EN 14474:2004 is associated with the following European legislation: EU Directives/Regulations: 305/2011, 89/106/EEC. When a standard is cited in the Official Journal of the European Union, products manufactured in conformity with it benefit from a presumption of conformity with the essential requirements of the corresponding EU directive or regulation.
You can purchase EN 14474:2004 directly from iTeh Standards. The document is available in PDF format and is delivered instantly after payment. Add the standard to your cart and complete the secure checkout process. iTeh Standards is an authorized distributor of CEN standards.
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
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
Determination of frost-resistance or frost-resistance in the presence of de-icing salts.10 Bibliography.13 SIST EN 14474:2005
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
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
...
Die Norm EN 14474:2004 beschreibt die Anforderungen und Prüfmethoden für Holzspanbeton, der in Fertigteilprodukten aus Holzspanbeton verwendet wird. Die Norm umfasst wesentliche Anforderungen für die Herstellung und Dokumentation dieser Produkte und stellt sicher, dass bestimmte Qualitätskriterien eingehalten werden. Ein wesentlicher Vorteil dieser Norm ist die Förderung von Nachhaltigkeit durch die Verwendung von Holzspänen als Zuschlagstoff, was zu einer Ressourcenschonung im Bauwesen beitragen kann. Die Norm gliedert sich in verschiedene technische Anforderungen, die darauf abzielen, die Leistung und Eignung von Holzspanbeton zu sichern. Zu den Produkten, die aus Holzspanbeton hergestellt werden können, gehören unter anderem Hohllochsteine für Fußbodensysteme, Schalsteine, Platten und akustische oder thermische Elemente, die sowohl in der Wohn- als auch in der Industriearchitektur zum Einsatz kommen. Die Relevanz der Norm zeigt sich insbesondere in der zunehmenden Nachfrage nach umweltfreundlichen Baustoffen und innovativen Konstruktionsmethoden. EN 14474:2004 unterstützt Hersteller dabei, qualitativ hochwertige Holzspanbetonprodukte zu entwickeln, die den Marktanforderungen gerecht werden und gleichzeitig den ökologischen Fußabdruck minimieren. Obwohl die Norm spezifische Anforderungen an Holzspanbeton formuliert, ist sie kein Ersatz für die spezifischen Produktnormen, die zusätzliche Anforderungen und Grenzwerte definieren können. Insbesondere die Anwendung der Norm ist nicht zulässig für Betone, die für tragende Mauerwerkseinheiten gemäß EN 771-3 verwendet werden. Dadurch wird gewährleistet, dass die Norm klar abgesteckte Anwendungsbereiche hat und Verwechslungen mit anderen Betonarten vermieden werden. Insgesamt bietet die EN 14474:2004 eine umfassende Grundlage für die Entwicklung von Holzspanbetonprodukten und trägt dazu bei, die Branche in Richtung einer nachhaltigeren Bauweise zu lenken. Die Vielfalt an Anwendungsbereichen macht diese Norm zu einem wichtigen Instrument für Hersteller und Planer gleichermaßen.
The standard EN 14474:2004, titled "Precast concrete products - Concrete with wood-chips as aggregate - Requirements and test methods," establishes essential guidelines and specifications for the use of wood-chip concrete in precast concrete products. This standard plays a critical role in ensuring that these innovative materials meet quality and safety standards for various applications. One of the key strengths of EN 14474:2004 is its comprehensive scope, which covers the common requirements for wood-chip concrete. It provides a solid foundation for the development of related product standards that may impose more specific or additional requirements. This approach promotes consistency across the industry and facilitates better communication among stakeholders involved in the preparation and use of wood-chip concrete products. Moreover, the standard identifies numerous practical applications for wood-chip concrete, such as hollow blocks for flooring systems, shuttering blocks, slabs, acoustic and thermal facing elements, and partitioning elements. This versatility highlights the relevance of EN 14474:2004 in various construction contexts, underlining its importance in the precast concrete sector. However, it is important to note that EN 14474:2004 is not applicable to concrete used for structural masonry units covered by EN 771-3 and their ancillary components. This limitation enhances the standard's focus and ensures that it exclusively addresses the unique characteristics and performance criteria associated with wood-chip concrete. In summary, EN 14474:2004 provides clear requirements and test methods for wood-chip concrete, reflecting both its strengths in practical application and its relevance within the broader precast concrete industry. The standard is a vital resource for professionals seeking to ensure compliance and quality in the use of innovative concrete materials.
La norme EN 14474:2004, intitulée « Produits en béton préfabriqué - Béton avec des copeaux de bois comme granulats - Exigences et méthodes d'essai », établit des exigences communes pour le béton à base de copeaux de bois. Ce document est crucial pour la normalisation des produits en béton préfabriqué utilisant cet agrégat, en fournissant un cadre pour la préparation des documents techniques relatifs aux produits en béton avec des copeaux de bois. L'une des forces majeures de cette norme réside dans sa capacité à standardiser les exigences pour une typologie de béton spécifique, ce qui est essentiel pour assurer la qualité et la sécurité des produits. En définissant les méthodes d'essai et les exigences à respecter, le document garantit que les produits en béton avec des copeaux de bois répondent à des critères de performance fiables. De plus, la norme aborde des applications variées, notamment pour des blocs creux destinés à des systèmes de plancher, des blocs de coffrage, des dalles, des éléments de façade et des éléments acoustiques ou thermiques, ce qui amplifie sa pertinence dans l'industrie de la construction. Cette norme est particulièrement pertinente pour les fabricants de produits en béton préfabriqués, car elle offre un cadre de référence pour développer des normes de produits qui peuvent définir des exigences spécifiques supplémentaires. Cela permet non seulement de garantir des performances optimales mais aussi de fournir des valeurs limites claires, essentielles pour la conformité aux attentes des clients et des marchés. En somme, la norme EN 14474:2004 se présente comme un document fondamental pour la promotion d’un usage sécurisé et performant du béton avec des copeaux de bois dans des applications variées, établissant des standards de qualité élevés pour l'ensemble de l'industrie du béton préfabriqué.
표준 EN 14474:2004는 목재 칩을 집합체로 사용한 콘크리트 제품에 대한 요구 사항 및 시험 방법을 규정하는 문서로, 프리캐스트 목재 칩 콘크리트 제품을 위한 일반 요구 사항을 제공합니다. 이 표준은 목재 칩 콘크리트 제품에 대한 문서를 준비할 때 참고할 수 있는 유용한 기준으로, 제품 표준이 정의하는 특정 요구 사항은 이 문서에서 제공하는 요구 사항에 추가로 존재할 수 있습니다. 이 표준의 범위는 목재 칩 콘크리트를 사용한 프리캐스트 제품에 대한 것으로, 바닥 시스템을 위한 중공 블록, 거푸집 블록, 슬래브, 패시닝 요소, 음향 및 열 절연 요소, 구획 요소, 와인 랙 등 다양한 용도에 활용될 수 있습니다. 이러한 구체적인 용도는 목재 칩 콘크리트의 다방면에서의 적용 가능성을 나타내며, 제품의 유용성을 더욱 부각시킵니다. EN 14474:2004 표준의 강점은 목재 칩 콘크리트의 일관된 품질과 신뢰성을 보장하는 데 있습니다. 표준이 요구하는 시험 방법은 제품의 성능을 평가하는 데 필수적인 요소로 작용하며, 이는 제조 과정에서 준수해야 할 기준을 명확히 하여 제품의 일관성을 높입니다. 또한, 개발 과정에서 발생할 수 있는 잠재적인 품질 문제를 최소화하는 데 기여합니다. 마지막으로, 이 표준은 EN 771-3에 의해 다뤄지는 구조용 조적 블록 및 부속 구성 요소에 적용되지 않으므로, 목재 칩 콘크리트 제품의 전문성과 특수성을 강조하는 데 중요한 역할을 합니다. EN 14474:2004 표준은 목재 칩 콘크리트를 사용하는 모든 프리캐스트 제품의 설계 및 제조에서 핵심적인 역할을 하며, 지속 가능한 건축 자재의 개발에 기여하고 있습니다.
SIST EN 14474:2005は、木チップを骨材とするコンクリート製品に関する規格であり、その範囲はプレキャスト木チップコンクリート製品に使用される木チップコンクリートの一般的な要件を規定しています。この標準は、木チップコンクリート製品に関する文書を作成する際に使用されることを目的としています。 この標準の強みは、木チップコンクリートにおける要求事項と試験方法を明示的に定義している点です。具体的には、床システム用の中空ブロック、型枠ブロック、スラブ、外装要素、音響および熱的外装要素、仕切り要素、ワインラックなど、幅広い用途に対応しています。これにより、製造業者は製品開発に際し、共通の基準に基づいて評価を行うことができ、品質の一貫性を確保する手助けとなります。 この標準は、木チップコンクリート製品の特定の要件を定義するための土台となる文書であり、他の製品規範に対して追加的な要件を提供する場合があります。また、製品の限界値についても言及があり、使用における安全性や性能を確保するうえで重要な文書です。 ただし、注意すべき点として、この標準はEN 771-3で取り扱われる構造用組積造ユニットのコンクリートには適用されないため、使用範囲を明確に理解することが重要です。全体として、SIST EN 14474:2005は木チップコンクリート製品の開発と製造において非常に有用な標準であり、業界での実用的な価値が高いと言えます。
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