Hydraulically bound mixtures - Specifications - Part 4: Fly ash for hydraulically bound mixtures

This European Standard specifies siliceous and calcareous fly ash used in hydraulically bound mixtures for roads, airfields and other trafficked areas. This European Standard applies to fly ash produced by the combustion of pulverised coal or lignite in energy generating plants.

Hydraulisch gebundene Gemische - Anforderungen - Teil 4: Flugasche für hydraulisch gebundene Gemische

Diese Europäische Norm legt kieselsäurereiche und kalkhaltige Flugasche fest, die in hydraulisch gebundenen Gemischen für den Bau von Straßen, Flugplätzen und sonstigen Verkehrsflächen verwendet wird. Diese Europäische Norm gilt für Flugasche, die durch Verbrennung von Stein- oder Braunkohlenstaub in Energieerzeugungsanlagen entsteht.

Mélanges traités aux liants hydrauliques - Spécifications - Partie 4: Cendre volante pour mélanges traités aux liants hydrauliques

La présente Norme européenne spécifie les cendres volantes siliceuses et calcaires utilisées dans les
mélanges traités aux liants hydrauliques pour les routes, les aéroports et autres zones de circulation. Cette
norme s'applique à la cendre volante produite par combustion de charbon pulvérisé ou de lignite dans des
centrales électriques.

Hidravlično vezane zmesi - Specifikacije - 4. del: Elektrofiltrski pepel za hidravlično vezane zmesi

Ta evropski standard določa silikatni ali karbonatni elektrofiltrski pepel za uporabo v hidravlično vezanih zmeseh za ceste, letališča in druge prometne površine. Ta evropski standard velja za elektrofiltrski pepel, ki nastane pri gorenju premogovega prahu ali lignita v elektrarnah.

General Information

Status
Published
Public Enquiry End Date
14-Aug-2011
Publication Date
19-Jun-2013
Technical Committee
CES - Roads
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
22-May-2013
Due Date
27-Jul-2013
Completion Date
20-Jun-2013

Relations

Effective Date
01-Jul-2013

Overview

SIST EN 14227-4:2013 is a European Standard developed by the European Committee for Standardization (CEN) that specifies requirements for siliceous and calcareous fly ash used in hydraulically bound mixtures. These mixtures are commonly applied in the construction of roads, airfields, and other trafficked surfaces. Fly ash covered by this standard results from the combustion of pulverised coal or lignite in energy-generating plants, serving as a critical material component in sustainable infrastructure projects.

This standard ensures consistent quality and performance of fly ash when used in civil engineering works, supporting durability, strength, and environmental sustainability in hydraulically bound mixtures.

Key Topics

  • Types of Fly Ash

    • Siliceous fly ash (alumino-silicate) characterized by its pozzolanic properties, consisting mainly of silica, alumina, and iron oxides.
    • Calcareous fly ash (sulfo-calcitic) containing calcium oxide and sulfates, which exhibit both hydraulic and pozzolanic activity.
  • Chemical and Physical Requirements

    • Particle size limits: maximum 60% retained on 0.045 mm sieve for siliceous; maximum 30% retained on 0.090 mm sieve for calcareous ash.
    • Loss on ignition (LOI) for siliceous fly ash must not exceed 15% by mass.
    • Maximum sulfuric anhydride (SO3) content of 4.0% by mass for siliceous fly ash.
    • Free calcium oxide and soundness limits to ensure volumetric stability.
    • Water content restrictions for dry fly ash set at a maximum of 1% by mass.
  • Performance Criteria

    • Pozzolanic activity (siliceous fly ash) and hydraulic activity (calcareous fly ash) must be declared when required, evaluated through compressive strength testing in standardized mixtures.
  • Production Control
    Manufacturers are required to implement rigorous production control measures including regular testing of particle size, chemical composition, soundness, and activity to ensure conformity with the standard.

  • Marking and Labelling
    Delivery documentation must include the standard reference, type of fly ash, origin, and manufacturer, ensuring traceability and compliance.

Applications

The specifications set forth in SIST EN 14227-4:2013 apply primarily to the use of fly ash as a component in hydraulically bound mixtures for infrastructure projects such as:

  • Road construction
  • Airfields and runways
  • Trafficked and load-bearing surfaces

Fly ash’s incorporation in these mixtures improves mechanical properties, reduces the environmental footprint of construction by recycling by-products, and enhances long-term durability through pozzolanic and hydraulic binding reactions. Using fly ash compliant with EN 14227-4 ensures reliable performance in base and sub-base layers exposed to heavy traffic loads and varying climatic conditions.

Related Standards

SIST EN 14227-4:2013 is part of the EN 14227 series on hydraulically bound mixtures, which provide comprehensive specifications for various binder materials used in road construction and soil stabilization:

  • EN 14227-1 - Cement bound granular mixtures
  • EN 14227-2 - Slag bound granular mixtures
  • EN 14227-3 - Fly ash bound granular mixtures
  • EN 14227-5 - Hydraulic road binder bound granular mixtures
  • EN 14227-10 to EN 14227-14 - Standards for soil stabilized by hydraulic binders including cement, lime, slag, and fly ash

Additional complementary standards referenced for testing methods include:

  • EN 196 series for cement testing
  • EN 450-1 for fly ash in concrete
  • EN 451 series for fly ash chemical and physical properties
  • EN 933-10 for aggregate fines grading
  • EN 13286-1 for mixture laboratory testing

Summary

SIST EN 14227-4:2013 delivers essential technical specifications and quality control measures for fly ash used in hydraulically bound mixtures within European infrastructure projects. Compliance with this standard supports sustainable construction practices by promoting the efficient reuse of coal combustion by-products, enhancing material performance, and ensuring uniformity across national borders. Professionals involved in road construction, geotechnical engineering, and materials supply benefit from applying EN 14227-4 to achieve durable, safe, and eco-friendly trafficked surfaces.

Frequently Asked Questions

SIST EN 14227-4:2013 is a standard published by the Slovenian Institute for Standardization (SIST). Its full title is "Hydraulically bound mixtures - Specifications - Part 4: Fly ash for hydraulically bound mixtures". This standard covers: This European Standard specifies siliceous and calcareous fly ash used in hydraulically bound mixtures for roads, airfields and other trafficked areas. This European Standard applies to fly ash produced by the combustion of pulverised coal or lignite in energy generating plants.

This European Standard specifies siliceous and calcareous fly ash used in hydraulically bound mixtures for roads, airfields and other trafficked areas. This European Standard applies to fly ash produced by the combustion of pulverised coal or lignite in energy generating plants.

SIST EN 14227-4:2013 is classified under the following ICS (International Classification for Standards) categories: 93.080.20 - Road construction materials. The ICS classification helps identify the subject area and facilitates finding related standards.

SIST EN 14227-4:2013 has the following relationships with other standards: It is inter standard links to SIST EN 14227-4:2005. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.

SIST EN 14227-4:2013 is available in PDF format for immediate download after purchase. The document can be added to your cart and obtained through the secure checkout process. Digital delivery ensures instant access to the complete standard document.

Standards Content (Sample)


2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Hydraulisch gebundene Gemische - Anforderungen - Teil 4: Flugasche für hydraulisch gebundene GemischeMélanges traités aux liants hydrauliques - Spécifications - Partie 4: Cendre volante pour mélanges traités aux liants hydrauliquesHydraulically bound mixtures - Specifications - Part 4: Fly ash for hydraulically bound mixtures93.080.20Materiali za gradnjo cestRoad construction materialsICS:Ta slovenski standard je istoveten z:EN 14227-4:2013SIST EN 14227-4:2013en,fr,de01-julij-2013SIST EN 14227-4:2013SLOVENSKI
STANDARDSIST EN 14227-4:20051DGRPHãþD

EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 14227-4
May 2013 ICS 93.080.20 Supersedes EN 14227-4:2004English Version
Specifications - Part 4: Fly ash for hydraulically bound mixtures Mélanges traités aux liants hydrauliques - Spécifications - Partie 4: Cendre volante pour mélanges traités aux liants hydrauliques
Hydraulisch gebundene Gemische - Anforderungen - Teil 4: Flugasche für hydraulisch gebundene Gemische This European Standard was approved by CEN on 1 March 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 and 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 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 Yugoslav 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
COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR 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 14227-4:2013: ESIST EN 14227-4:2013
...

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