SIST EN 13055-1:2002
(Main)Lightweight aggregates - Part 1: Lightweight aggregates for concrete, mortar and grout
Lightweight aggregates - Part 1: Lightweight aggregates for concrete, mortar and grout
This European Standard specifies the properties of lightweight aggregates and lightweight filler aggregates obtained by processing natural, manufactured or recycled materials and mixtures of these aggregates for use in concrete, mortar and grout in buildings, roads and civil engineering works.
This European Standard covers lightweight aggregates of mineral origin having particle densities not exceeding
2 000 kg/m3 (2,00 Mg/m3) or loose bulk densities not exceeding 1 200 kg/m3 (1,20 Mg/m3) including:
a) natural aggregates;
b) aggregates manufactured from natural materials and/or from by-products of industrial processes;
c) by-products of industrial processes;
d) recycled aggregates.
It provides for the evaluation of conformity of the products to this European Standard.
The requirements specified in this standard may not be relevant to all types of lightweight aggregates. For particular applications the requirements and tolerances may be adapted for the end use.
NOTE The requirements in this European Standard are based upon experience with aggregate types with an established pattern of use. Care should be taken when considering the use of aggregates from sources with no such pattern of use, e.g., recycled aggregates and aggregates arising from certain industrial by-products. Such aggregates, which should comply with all the requirements of this European Standard, could have other characteristics not included in Mandate M 125 that do not apply to the generality of aggregate types with an established pattern of use and when required, provisions valid at the place of use can be used to assess their suitability.
Leichte Gesteinskörnungen - Teil 1: Leichte Gesteinskörnungen für Beton, Mörtel und Einpressmörtel
Diese Europäische Norm legt die Eigenschaften von leichten Gesteinskörnungen und leichte Gesteinskörnungen für Füller fest, die durch Aufbereitung natürlicher, industriell hergestellter oder rezyklierter Materialien und deren Mischungen gewonnen werden und für Betone, Mörtel und Einpressmörtel, die in Gebäude, Straßen und Ingenieurbauten eingesetzt werden.
Diese Europäische Norm gilt für leichte Gesteinskörnungen mineralischen Ursprungs mit Rohdichten von nicht mehr als 2 000 kg/m3 (2,00 Mg/m3) oder Schüttdichten von nicht mehr als 1 200 kg/m3 (1,20 Mg/m3) und schließt ein:
a) natürliche Gesteinskörnungen;
b) aus natürlichen Rohstoffen und/oder aus industriellen Nebenprodukten hergestellte Gesteinskörnungen;
c) industrielle Nebenprodukte;
d) rezyklierte Gesteinskörnungen.
Sie enthält Festlegungen für die Bewertung der Konformität von Produkten nach dieser Europäischen Norm.
Die in dieser Norm festgelegten Anforderungen sind unter Umständen nicht auf jede Art von leichten Gesteinskörnungen anwendbar. Für besondere Anwendungen dürfen die Anforderungen und Toleranzen dem jeweiligen Verwendungszweck angepasst werden.
ANMERKUNG Die Anforderungen dieser Europäischen Norm basieren auf Erfahrungen mit Gesteinskörnungsarten, die sich in der Anwendung bewährt haben. Die Verwendung von Gesteinskörnungen aus Bezugsquellen ohne eine derartige Bewährung, wie z. B. von rezyklierten oder in einem industriellen Prozess entstandenen Gesteinskörnungen, sollte sorgfältig geprüft werden. Derartige Gesteinskörnungen könnten trotz Übereinstimmung mit sämtlichen Anforderungen dieser Europäischen Norm Eigenschaften besitzen, die nicht im Mandat M 125 erfasst sind und die nicht für die Gesamtheit der Gesteinskörnungsarten mit einer bewährten Anwendung gelten; falls erforderlich, können für die Bewertung ihrer Eignung am jeweiligen Verwendungsort geltende Vorschriften herangezogen werden.
Granulats légers - Partie 1: Granulats légers pour bétons et mortiers et coulis
La présente Norme européenne spécifie les caractéristiques des granulats légers et des fillers légers élaborés a partir de matériaux naturels, artificiels ou recyclés et des mélanges de ces granulats afin d'etre utilisés dans le béton, le mortier ou le coulis entrant dans la construction des bâtiments , des routes et des ouvrages de génie civil.
La présente Norme européenne s'applique a des granulats légers ayant une masse volumique réelle n'excédant pas 2 000 kg/m3 (2,00 Mg/m3) ou une masse volumique en vrac n'excédant pas 1 200 kg/m3 (1,20 Mg/m3) parmi lesquels se trouvent :
a) des granulats naturels ;
b) des granulats fabriqués a partir de matériaux naturels et/ou de sous-produits de procédés industriels ;
c) les sous-produits de procédés industriels ;
d) les granulats recyclés.
Elle comprend l'évaluation de la conformité des produits a la présente Norme européenne.
Les exigences spécifiées dans cette norme peuvent ne pas etre adaptées a tous les types de granulats légers. Pour des applications particulieres les exigences et tolérances peuvent etre adaptées a l'emploi.
NOTE Les spécifications de la présente norme européenne sont fondées sur l'expérience acquise avec des types de granulats disposant d'un mode d'utilisation établi. Il convient de preter une attention particuliere aux granulats provenant de ressources ne bénéficiant pas d'une telle expérience, par exemple les granulats recyclés et les granulats issus de certains produits industriels dérivés. Ces granulats, qui doivent etre conformes a toutes les spécifications de la présente Norme européenne, pourraient avoir d'autres caractéristiques non mentionnées dans le mandat 125, et ne s'appliquant pas a l'ensemble des types de granulats disposant d'un mode d'utilisation établi ; le cas échéant, des dispositions en vigueur sur le lieu d'utilisation peuvent etre adoptées pour évaluer leur aptitude a l'emploi.
Lahki agregati - 1. del: Lahki agregati za beton, malto in injekcijsko malto
General Information
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Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Lightweight aggregates - Part 1: Lightweight aggregates for concrete, mortar and groutLahki agregati - 1. del: Lahki agregati za beton, malto in injekcijsko maltoGranulats légers - Partie 1: Granulats légers pour bétons et mortiers et coulisLeichte Gesteinskörnungen - Teil 1: Leichte Gesteinskörnungen für Beton, Mörtel und EinpressmörtelTa slovenski standard je istoveten z:EN 13055-1:2002SIST EN 13055-1:2002en91.100.15ICS:SLOVENSKI
STANDARDSIST EN 13055-1:200201-september-2002
EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 13055-1May 2002ICS 91.100.15English versionLightweight aggregates - Part 1: Lightweight aggregates forconcrete, mortar and groutGranulats légers - Partie 1: Granulats légers pour bétons etmortiersLeichte Gesteinskörnungen - Teil 1: LeichteGesteinskörnungen für Beton und MörtelThis European Standard was approved by CEN on 21 March 2002.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 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 translationunder the responsibility of a CEN member into its own language and notified to the Management Centre has the same status as the officialversions.CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece,Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMITÉ EUROPÉEN DE NORMALISATIONEUROPÄISCHES KOMITEE FÜR NORMUNGManagement Centre: rue de Stassart, 36
B-1050 Brussels© 2002 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 13055-1:2002 E
EN 13055-1:2002 (E)2ContentspageForeword.31Scope.42Normative references.43Terms and definitions.54Physical requirements.65Chemical requirements.86Testing.97Evaluation of conformity.108Designation.11Annex A (normative)
Determination of crushing resistance.12Annex B (normative)
Determination of resistance to disintegration.16Annex C (normative)
Determination of resistance to freezing and thawing of lightweight aggregates.18Annex D (informative)
Guidance on how to convert quantities by mass to quantities by volume.21Annex E (informative)
Guidance on the effects of some chemical constituents of lightweightaggregates on the durability of concrete, mortar and grout in which they are incorporated.22Annex F (normative)
Factory production control.23Annex ZA (informative)
Clauses of this European Standard addressing essential requirements orother provisions of EU Directives.28
EN 13055-1:2002 (E)3ForewordThis document EN 13055-1:2002 has been prepared by Technical Committee CEN/TC 154 "Aggregates", thesecretariat 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 orby endorsement, at the latest by November 2002, and conflicting national standards shall be withdrawn at the latestby June 2004.This document has been prepared under a mandate given to CEN by the European Commission and the EuropeanFree 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.This European Standard forms part of a series of standards for lightweight aggregates, the other part being:Part 2: Lightweight aggregates for bituminous mixtures and surface treatments and for unbound and boundapplications excluding concrete, mortar and groutRequirements for other types of aggregates will be specified in the following European Standards:prEN 12620, Aggregates for concrete.prEN 13043, Aggregates for bituminous mixtures and surface treatments for roads, airfields and other traffickedareas.prEN 13139, Aggregates for mortar.prEN 13242, Aggregates for unbound and hydraulic bound materials for use in civil engineering workand road construction.EN 13383-1, Armourstone - Part 1: Specification.prEN 13450, Aggregates for railway ballast.The annexes A, B, C and F are normative, the annexes D and E are informative.According to the CEN/CENELEC Internal Regulations, the national standards organizations of the followingcountries are bound to implement this European Standard: Austria, Belgium, Czech Republic, Denmark, Finland,France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Spain,Sweden, Switzerland and the United Kingdom.
EN 13055-1:2002 (E)41 ScopeThis European Standard specifies the properties of lightweight aggregates and lightweight filler aggregates obtainedby processing natural, manufactured or recycled materials and mixtures of these aggregates for use in concrete,mortar and grout in buildings, roads and civil engineering works.This European Standard covers lightweight aggregates of mineral origin having particle densities not exceeding2 000 kg/m3 (2,00 Mg/m3) or loose bulk densities not exceeding 1 200 kg/m3 (1,20 Mg/m3) including:a) natural aggregates;b) aggregates manufactured from natural materials and/or from by-products of industrial processes;c) by-products of industrial processes;d) recycled aggregates.It provides for the evaluation of conformity of the products to this European Standard.The requirements specified in this standard may not be relevant to all types of lightweight aggregates. Forparticular applications the requirements and tolerances may be adapted for the end use.NOTEThe requirements in this European Standard are based upon experience with aggregate types with an establishedpattern of use. Care should be taken when considering the use of aggregates from sources with no such pattern of use, e.g.,recycled aggregates and aggregates arising from certain industrial by-products. Such aggregates, which should comply with allthe requirements of this European Standard, could have other characteristics not included in Mandate M 125 that do not applyto the generality of aggregate types with an established pattern of use and when required, provisions valid at the place of usecan be used to assess their suitability.2 Normative referencesThis European Standard incorporates by dated or undated reference, provisions from other publications. Thesenormative references are cited at the appropriate places in the text, and the publications are listed hereafter. Fordated references, subsequent amendments to or revisions of any of these publications apply to this EuropeanStandard only when incorporated in it by amendment or revision. For undated references, the latest edition of thepublication referred to applies (including amendments).EN 932-1, Tests for general properties of aggregates — Part 1: Methods for sampling.EN 932-2, Tests for general properties of aggregates — Part 2: Methods for reducing laboratory samples.EN 932-5, Tests for general properties of aggregates — Part 5: Common equipment and calibration.EN 933-1, Tests for geometrical properties of aggregates — Part 1: Determination of particle size distribution —Sieving method.EN 933-2, Tests for geometrical properties of aggregates — Part 2: Determination of particle size distribution — Testsieves, nominal size of apertures.EN 933-5, Tests for geometrical properties of aggregates — Part 5: Determination of percentage of crushed andbroken surfaces in coarse aggregate particles.EN 933-10, Tests for geometrical properties of aggregates — Part 10: Assessment of fines
— Grading of fillers(air jet sieving).EN 1097-3, Tests for mechanical and physical properties of aggregates — Part 3: Determination of loose bulkdensity and voids.EN 1097-5, Tests for mechanical and physical properties of aggregates — Part 5: Determination of the watercontent by drying in a ventilated oven.
EN 13055-1:2002 (E)5EN 1097-6:2000, Tests for mechanical and physical properties of aggregates — Part 6: Determination of particledensity and water absorption.EN 1744-1:1998, Tests for chemical properties of aggregates — Part 1: Chemical analysis.ISO 3310-1, Test sieves - Technical requirements and testing — Part 1: Test sieves of metal wire cloth.ISO 3310-2, Test sieves - Technical requirements and testing — Part 2: Test sieves of perforated metal plate.3 Terms and definitionsFor the purposes of this European Standard, the following terms and definitions apply.3.1aggregategranular material used in construction. Aggregate may be natural, manufactured, by product or recycled3.2lightweight aggregateaggregate of mineral origin having a particle density not exceeding 2 000 kg/m3 (2,00 Mg/m3) or a loose bulkdensity not exceeding 1 200 kg/m3 (1,20 Mg/m3)3.3natural aggregateaggregate from mineral sources which has been subjected to nothing more than mechanical processing3.4manufactured aggregateaggregate of mineral origin resulting from an industrial process involving thermal or other modification3.5by-product aggregateaggregate of mineral origin from an industrial process which subsequently has been subjected to nothing morethan mechanical processing3.6recycled aggregateaggregate resulting from processing of inorganic material previously used in construction3.7finesparticle size fraction of an aggregate which passes the 0,063 mm sieve3.8filler aggregateaggregate, most of which passes a 0,063 mm sieve, which can be added to construction materials to providecertain properties3.9gradingparticle size distribution expressed as the percentage by mass passing a specified number of sieves
EN 13055-1:2002 (E)64 Physical requirements4.1 GeneralThe necessity for testing and declaring all properties specified in this clause shall be limited according to theparticular application at end use or origin of the aggregate. When required, the tests specified shall be carried outto determine appropriate physical properties.4.2 Density4.2.1 Loose bulk densityLoose bulk density shall be declared and determined in accordance with EN 1097-3. It shall be in the range of± 15 % with a maximum of ± 100 kg/m3 (0,10 Mg/m3) of the declared value.NOTEThe container should be filled using a standard scoop held centrally over the container and without touching it.4.2.2 Particle densityWhen required the particle density shall be determined in accordance with EN 1097-6:2000, annex C. It shall be inthe range of ± 15 % with a maximum of ± 150 kg/m3 (0,15 Mg/m3) of the declared value.4.3 Aggregate size4.3.1GeneralAggregate sizes shall be designated using a pair of sieve sizes selected from the basic set, or the basic set plus set1, or the basic set plus set 2 in Table 1.NOTEThis designation accepts the presence of some particles which are
retained on the upper sieve (oversize) andsome which pass the lower sieve (undersize).
EN 13055-1:2002 (E)7Table 1 — Sieve sizes for specifying aggregate product sizesBasic setmmBasic set plus set 1mmBasic set plus set 2mm00,250,512-4--8----16--31,5 (32)--6300,250,5122,8 (3)45,6 (5)-8-11,2 (11)--16-22,4 (22)31,5 (32)-456300,250,5123,15 (3)4-6,3 (6)810-12,5 (12)141620-31,5 (32)40-63NOTE
Rounded sizes shown in parentheses can be used as simplifieddescriptions of aggregate sizes.4.3.2UndersizeThe quantity of the undersize shall not exceed 15 % by mass.4.3.3OversizeThe quantity of the oversize shall not exceed 10 % by mass. When required, the sieve which 100 % materialpasses shall be declared.4.4 GradingParticle size distribution shall be determined in accordance with EN 933-1 by dry sieving and the results declared.NOTECare should be taken with friable aggregates to prevent degradation.4.5 Particle shapeWhen required, particle shape shall be described and declared.NOTETest methods for normal weight aggregates are not applicable.4.6 FinesWhen required, the content of fines in lightweight aggregates shall be determined in accordance with EN 933-1 andthe results declared.NOTECare should be taken with friable aggregates to prevent degradation.
EN 13055-1:2002 (E)84.7 Grading of fillersWhen required, the particle size distribution of fillers shall be determined in accordance with EN 933-10 and theresults declared.4.8 Water absorptionWhen required, the water absorption of lightweight aggregate shall be determined in accordance withEN 1097-6:2000, annex C and the results declared.4.9 Water contentWhen required the water content of the lightweight aggregate shall be determined in accordance with EN 1097-5and the results declared.4.10 Crushing resistanceWhen required, the crushing resistance of lightweight aggregates shall be determined in accordance with annex Aand the results declared.NOTEThere is no simple relationship between the crushing resistance of lightweight aggregate and the properties at itsend use.4.11 Percentage of crushed particlesWhen required, the percentage of crushed particles of lightweight aggregate with a bulk density of not less than150 kg/m3 (0,15 Mg/m3) shall be determined in accordance with EN 933-5 and the results declared.NOTEFor manufactured lightweight aggregates having a bulk density less than 150 kg/m3 (0,15 Mg/m3), the test specifiedin EN 933-5 can be used where appropriate.4.12 Resistance to disintegrationWhen required, the resistance to disintegration shall be determined in accordance with annex B and declared.NOTEThis test is suitable for aggregate with bulk density above 150 kg/m3 (0,15 Mg/m3).4.13 Freezing and thawing resistanceIf frost resistant aggregates are required for use in concrete, mortar or grout in an environment subject to freezingand thawing, the freeze/thaw resistance of aggregates having a particle size of not less than 4 mm and a densitynot less than 150 kg/m3 (0,15 Mg/m3) shall be determined in accordance with annex C and declared.When the resistance to freezing and thawing of aggregates of 4 mm or less and a density less than 150 kg/m3(0,15 Mg/m3) is required in the end use situation, it shall be derived from a freeze-thaw test on the final product inaccordance with the provisions valid at the place of use and the results declared.NOTEAlternatively aggregates can be assessed on the basis of satisfactory service record of performance or test on thefinal product.5 Chemical requirements5.1 GeneralThe necessity for testing and declaring all properties in this clause is limited to the particular application at end useor origin of the aggregate. When required the tests specified in clause 5 shall be carried out to determine theappropriate chemical content by mass. If comparing a determination to a limiting value the chemical content bymass shall be converted to a comparison value in accordance with the following equation:
EN 13055-1:2002 (E)91500density bulk
Loose
mc×=VVwhereVcis the comparison value;Vmis the value measured in accordance with EN 1744-1;1 500is the assumed nominal loose bulk density of normal weight aggregate.NOTE 1Further guidance is given in annex D.NOTE 2Guidance on the effect of chemical constituents in lightweight aggregates, including alkali-silica reactivity, related tothe durability, appearance and surface properties of the concrete, mortar and grout in which they are incorporated is given inannex E.5.2 ChlorideThe water-soluble chloride ion content of lightweight aggregates shall be provided and determined in accordancewith EN 1744-1:1998, clause 7, and declared.NOTEFurther guidance is given in annex E.5.3 Sulfur containing compounds5.3.1 Acid-soluble sulfateAcid-soluble sulfate content shall be determined in accordance with EN 1744-1:1998, clause 12, and declared.5.3.2 Total sulfurTotal sulfur content shall be determined in accordance with EN 1744-1:1998, clause 11, and declared.5.4 Loss on ignition (for ashes only)Loss on ignition shall be determined in accordance with EN 1744-1:1998, clause 17, and declared.5.5 Organic contaminatorsHarmful components in natural lightweight aggregates i.e., those which alter the rate of setting and hardening ofconcrete, mortar and grout shall be determined in accordance with EN 1744-1:1998, 15.3, and declared.NOTEFurther guidance is given in annex E.5.6 Alkali-silica reactivity of natural lightweight aggregatesWhen required, the alkali-silica reactivity of natural lightweight aggregates shall be assessed in accordance with theprovisions valid in the place of use and the results declared.NOTEGuidance on the effects of alkali-silica reactivity, is given in annex E.6 Testing6.1 SamplingSampling shall be carried out as specified in EN 932-1.NOTETo ensure a representative sample care should be taken to avoid segregation.
EN 13055-1:2002 (E)106.2 Quantity of test portionsThe test portion quantity specified in test methods shall, if not taken into account by the test method, be correctedon the basis of loose bulk density in order to have a volume equivalent to an aggregate with a loose bulk density of1 500 kg/m3 (1,50 Mg/m3).6.3 Preparation of test specimens6.3.1 DryingTest specimens shall be dried in accordance with EN 1097-5.6.3.2 Conditioning after dryingTest specimens shall be allowed to cool to room temperature. For some lightweight aggregates the test specimensshall be allowed to condition to moisture equilibrium at (23 ± 5) °C and (50 ± 10)% RH.7 Evaluation of conformity7.1 GeneralThe producer shall undertake initial type tests (see 7.2) and factory production control (see 7.3) to ensure that theproduct conforms to this European Standard and to declared values as appropriate.7.2 Initial type testsInitial type tests relevant to the intended end use shall be carried out to check compliance with specifiedrequirements in the following circumstances:a) a new source of aggregates is to be used;b) there is a major change in the nature of the raw materials or in the processing conditions which may affectthe properties of the aggregates.The results of the initial tests shall be documented as the starting point of the factory production control for thatmaterial. This shall particularly include the identification of any components likely to emit radiation above normalbackground levels, any components likely to release polyaromatic carbons or other dangerous substances. If thecontent of any of these components exceeds the limits in force according to the provisions valid in the place of useof the aggregate, the results of the initial tests shall be declared.7.3 Factory production controlThe producer shall have in place a system of factory production control that complies with the requirements ofannex F.The records held by the producer shall indicate what control procedures are in operation during the production ofthe aggregate.NOTEThe form of control applied to any aggregate depends upon its intended use and the regulations relating to that use.
EN 13055-1:2002 (E)118 Designation8.1 Designation and descriptionLightweight aggregate shall be identified in the following terms:a) the name and address of the producer or trademark;b) the size;c) the loose bulk density or particle density;d) reference to this standard;e) any additional information needed to identify the particular lightweight aggregate.8.2 Supply8.2.1 The supply of material shall be by volume or mass.8.2.2 All the material shall be protected against contamination.8.3 Marking and labellingEvery consignment of lightweight aggregates shall be identified by a numbered delivery note containing at least thefollowing information:a) designation in accordance with 8.1;b) the source or place of manufacture;c) date of dispatch from the producer's works;d) the quantity of lightweight aggregates;e) the customer’s name and address.NOTEFor CE marking and labelling, see ZA.3.
EN 13055-1:2002 (E)12Annex A (normative)Determination of crushing resistanceA.1 PrincipleA prepared sample of lightweight aggregate is placed in a specified steel cylinder and compacted by vibration. Apiston is then forced under pressure into the cylinder for a given distance, and the force required is measured andexpressed as the resistance to crushing.Two test procedures are specified. Procedure 1 is normally applicable to lightweight aggregate in the size range 4mm to 22 mm and with a bulk density above 150 kg/m3 (0,15 Mg/m3). Procedure 2 is normally applicable to alightweight aggregate with a bulk density of 150 kg/m3 (0,15 Mg/m3) and below.A.2 ApparatusA.2.1
All apparatus, unless otherwise stated, shall conform to the general requirements of EN 932-5.A.2.2
Steel test cylinder and piston, as shown in Figure A.1 for procedure 1 and Figure A.2 for procedure 2.A.2.3
Hydraulic press, or similar device capable of providing sufficient pressure for the test and measuring thepressure to an accuracy of ± 5 %.A.2.4
Vibrating table, operating at approximately 3 000 oscillations per minute and amplitude 0,5 without load.A.2.5
Steel straightedge, of a suitable length.A.2.6
Scoop, of suitable size to fill the test cylinder.A.2.7
Thermostatically controlled ventilated drying oven, capable of maintaining a temperature of (110 ± 5) ºC.A.3 Preparation of test specimensSamples shall be taken in accordance with EN 932-1 and reduced in accordance with EN 932-2.Prepare three representative test specimens of suitable size and remove undersize and oversize.A.4 ProcedureA.4.1 Procedure 1Place the cylinder on the vibrating table and gently fill to overflowing by discharging the test lightweight aggregateusing a scoop, all around the cylinder, taking care to avoid segregation of the lightweight aggregate. Vibrate thecylinder for 3 s to 60 s and refill.Vibrate the cylinder for a further 3 s to 60 s and level the surface of the lightweight aggregate using thestraightedge.Position the top rail on the cylinder and place the piston gently on top of the compacted lightweight aggregate.Adjust the distance between the contact ring and the top rail to 20 mm and place the test assembly in the hydraulicpress.Increase the force on the piston to reach a compression of 20 mm in approximately 100 s, and record the force innewtons. Repeat the procedure with the remaining two test specimens.
EN 13055-1:2002 (E)13A.4.2 Procedure 2Place the cylinder on the vibrating table and gently fill to overflowing by discharging the test lightweight aggregateusing a scoop, taking care to avoid segregation of the lightweight aggregate.Vibrate the cylinder for 3 s and fit the flanged collar on the test cylinder. Add additional lightweight aggregate to fillthe collar and vibrate for a further 3 s.Remove the collar and level the lightweight aggregate and place the test assembly in the hydraulic press.Increase the force on the piston to reach a compression of 50 mm in approximately 100 s, and record the force innewtons.Repeat the procedure with the remaining two test specimens.A.5 Calculation and expression of resultsCalculate the crushing resistance (Ca or Cb) for each test specimen using the following equation:AFLCC+=baor
N/mm2whereCais the crushing resistance, in newtons per square millimetre, determined inaccordance with procedure 1;Cbis the crushing resistance, in newtons per square millimetre, determined inaccordance with procedure 2;Lis the force exerted by the piston in newtons;Fis the compression force in newtons;Ais the area of the piston in square millimetres.Calculate the mean value of the three results.A.6 Test reportThe test report shall include the following information:a) reference to this European Standard;b) test carried out in accordance with procedure 1 or procedure 2;c) identification of the test specimen;d) identification of the test laboratory;e) date of test;f) mean crushing resistance (Ca or Cb);g) range of the three test results;h) period of vibration.
EN 13055-1:2002 (E)14 Dimensions in millimetres2012345 ±143112,9
0,11 ±60112,8
0,1
202130113
0,13±130113
0,1±4514012117815010050118,5100,518100602020281810Key1Adjustable height ring2Piston3Upper cylinder4Lower cylinder5BaseFigure A.1 — Test apparatus for procedure 1
EN 13055-1:2002 (E)15 Dimensions in millimetres12750507510127576,296,25433Key1Mark 50 mm2Piston3 Collar4 Cylinder5BaseFigure A.2 — Test apparatus for procedure 2
EN 13055-1:2002 (E)16Annex B (normative)Determination of resistance to disintegrationB.1 PrincipleTwo specimens of lightweight aggregate are stored in water for 3 days at ambient temperature, after which they areautoclaved for 3 h at a pressure of 2 MPa and a temperature of 215 °C, and then cooled to 30 °C.After drying at 110 °C, and cooling, they are sieved on the next smaller sieve to that of the lower limiting sieve ofthe single size test grading.The mass passing this test sieve is expressed as a percentage of the mass of each original dry test specimen.The result is recorded as the mean of the results of two test specimens.B.2 ApparatusB.2.1
All apparatus, unless otherwise stated, shall conform to the general requirements of EN 932-5.B.2.2
Thermostatically controlled saturated steam autoclave, of suitable capacity capable of raising the testspecimens from 20 °C to (215 ± 5) °C in (60 ± 5) min and maintaining this temperature for (180 ± 10) min, at apressure of (2 ± 0,2) MPa. In addition, the autoclave shall be capable of allowing the test specimens to cool to(30 ± 10) °C in (90 ± 10) min.B.2.3
Test sieves, in accordance with ISO 3310-1 or ISO 3310-2.B.2.4
Balance, of adequate capacity and with an accuracy of ± 0,1 g.B.2.5
Thermostatically controlled ventilated drying oven, capable of maintaining a temperature of (110 ± 5) °C.B.2.6
Two metal containers, suitable for holding the lightweight aggregate in the autoclave.B.3 Preparation of test specimensSamples shall be taken in accordance with EN 932-1 and reduced in accordance with EN 932-2 and be largeenough to give two test specimens as specified in Table B.1.B.3.1
Dry the sample of lightweight aggregate in accordance with EN 1097-5.B.3.2
Dry sieve the two test specimens, removing the oversize and undersize using the appropriate upper andlower sieves specified in Table B.1.Table B.1 — Specimen size/sieve sizesLower and upper sieve sizesmmApproximate volumemlNext smaller sievemm4/88/1616/225001 0002 000248
EN 13055-1:2002 (E)17B.4 ProcedureB.4.1
Soak the two test specimens in distilled water at ambient temperature for (72 ± 1) h, weighing the aggregateto ensure that it is below the surface of the water.B.4.2
After soaking, strain the lightweight aggregate from the distilled water and allow the specimens to drain forabout 15 min.B.4.3
Place the drained specimens in the two metal containers and place these in the autoclave.B.4.4
Raise the autoclave to a pressure of (2 ± 0,2) MPa and a temperature of (215 ± 5) °C in (90 ± 5) min, andmaintain this pressure and temperature for (180 ± 5) min. Allow to cool to (30 ± 10) °C in (90 ± 5) min.B.4.5
Transfer the containers and contents to the oven and dry at (110 ± 5) °C in accordance withEN 1097-5 and allow to cool.B.4.6
Weigh each test specimen to the nearest 0,1 g (m1).B.4.7
Carefully screen each of the test specimens on the next smaller sieve indicated in Table B.1.B.4.8
Weigh the material passing through this sieve to 0,1 g for each test specimen (m2).B.5 Calculation and expression of resultsB.5.1
Calculate the percentage loss in mass M, for each of the two test specimens using the following equation:100´=12mmMwhereMis the percentage loss in mass;m1is the initial mass of the test specimen in grams;m2is the mass of the material in grams which passes the appropriate lower size sieveafter autoclaving.B.5.2 The result shall be expressed as the mean value obtained from two specimens.
EN 13055-1:2002 (E)18Annex C (normative)Determination of resistance to freezing and thawing of lightweight aggregatesC.1 IntroductionThe test method specified in this annex has been found to be suitable for lightweight aggregates with a particle sizenot less than 4 mm and a bulk density not less than 150 kg/m3 (0,15) Mg/m3.NOTEThe principle of this test deviates from the test method specified in EN 1367-1.C.2 PrincipleA test specimen of lightweight aggregates, after soaking in water at atmospheric press
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