SIST EN 13282-1:2013
(Main)Hydraulic road binders - Part 1: Rapid hardening hydraulic road binders - Composition, specifications and conformity criteria
Hydraulic road binders - Part 1: Rapid hardening hydraulic road binders - Composition, specifications and conformity criteria
This European Standard defines and gives the specifications for rapid hardening hydraulic road binders, produced in a factory and supplied ready for treatment of materials for bases, sub-bases and capping layers as well as earthworks, in road, railway, airport and other types of infrastructure. It includes the mechanical, physical and chemical requirements and the classification of these binders based on their compressive strength at 7 days and 28 days. It also includes the conformity criteria and evaluation procedures to be applied by the manufacturer.
Hydraulische Tragschichtbinder - Teil 1: Schnell erhärtende hydraulische Tragschichtbinder - Zusammensetzung, Anforderungen und Konformitätskriterien
EN 13282-1 definiert und enthält die Festlegungen für schnell erhärtende hydraulische Tragschichtbinder, die in einem Werk produziert und gebrauchs¬fertig für die Behandlung von Materialien für Tragschichten, untere Tragschichten, Deckschichten und Erdbauarbeiten im Straßen-, Eisenbahn- und Flughafenbau sowie für andere Arten von Infrastruktur geliefert werden. Sie werden nach ihrer Druckfestigkeit nach 7 und 28 Tagen klassifiziert. Die Norm legt die mechanischen, physikalischen und chemi¬schen Anforderungen sowie die Konformitätskriterien und die vom Hersteller anzuwen¬denden Bewertungsverfahren fest.
Liants hydrauliques routiers - Partie 1: Liants hydrauliques routiers à durcissement rapide - Composition, spécifications et critères de conformité
La présente norme européenne définit et fournit les spécifications applicables aux liants hydrauliques routiers à durcissement rapide fabriqués en usine et fournis prêts à l'emploi, adaptés au traitement des matériaux utilisés pour les couches de base, les couches de fondation et les couches de forme ainsi que pour les travaux de terrassement pour des structures routières, ferroviaires, aéroportuaires et autres types d'infrastructure.
Elle comprend les exigences mécaniques, physiques et chimiques ainsi que la classification de ces liants fondée sur leur résistance à la compression à 7 et 28 jours. Elle comprend également les critères de conformité et les méthodes d'évaluation que doit appliquer le fabricant.
Hidravlična veziva za ceste - 1. del: Hidravlična veziva za ceste, ki se hitro strjujejo - Sestava, zahteve in merila skladnosti
Ta evropski standard določa in podaja specifikacije za hidravlična veziva za ceste, ki se hitro strjujejo, izdelana v tovarni in ki so že pripravljena za obdelavo materialov za osnovne, podosnovne in vrhnje plasti ter za nasipe v cestah, železnicah, letališčih in drugih vrstah infrastrukture. Vključuje mehanske, fizikalne in kemične zahteve ter klasifikacijo teh veziv na podlagi njihove tlačne trdnosti 7. in 28. dan. Vključuje tudi merila skladnosti in postopke vrednotenja, ki jih mora upoštevati proizvajalec.
General Information
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Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Hydraulische Tragschichtbinder - Teil 1: Schnell erhärtende hydraulische Tragschichtbinder - Zusammensetzung, Anforderungen und KonformitätskriterienLiants hydrauliques routiers - Partie 1: Liants hydrauliques routiers à durcissement rapide - Composition, spécifications et critères de conformitéHydraulic road binders - Part 1: Rapid hardening hydraulic road binders - Composition, specifications and conformity criteria93.080.20Materiali za gradnjo cestRoad construction materialsICS:Ta slovenski standard je istoveten z:EN 13282-1:2013SIST EN 13282-1:2013en,fr,de01-junij-2013SIST EN 13282-1:2013SLOVENSKI
STANDARDSIST ENV 13282:20011DGRPHãþD
SIST EN 13282-1:2013
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 13282-1
March 2013 ICS 93.080.20 Supersedes ENV 13282:2000English Version
Hydraulic road binders - Part 1: Rapid hardening hydraulic road binders - Composition, specifications and conformity criteria
Liants hydrauliques routiers - Partie 1: Liants hydrauliques routiers à durcissement rapide - Composition, spécifications et critères de conformité
Hydraulische Tragschichtbinder - Teil 1: Schnell erhärtende hydraulische Tragschichtbinder - Zusammensetzung, Anforderungen und Konformitätskriterien This European Standard was approved by CEN on 20 October 2012.
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 13282-1:2013: ESIST EN 13282-1:2013
EN 13282-1:2013 (E) 2 Contents Page Foreword . 3 Introduction . 4 1 Scope . 5 2 Normative references . 5 3 Terms and definitions . 5 4 Hydraulic road binder . 6 4.1 General . 6 4.2 Rapid hardening hydraulic road binder . 6 5 Constituents . 6 5.1 Main constituents . 6 5.2 Minor additional constituents . 7 5.3 Calcium sulfate (Cs) . 7 5.4 Additives . 7 6 Classification . 7 7 Requirements . 8 7.1 Mechanical requirements. 8 7.2 Physical requirements . 8 7.3 Chemical requirement - Sulfate content . 9 7.4 Composition . 9 7.5 Durability requirements . 10 7.6 Dangerous substances . 10 8 Standard designation . 10 9 Conformity criteria . 11 9.1 General requirements . 11 9.2 Conformity criteria for mechanical, physical and chemical properties and evaluation procedure . 12 9.3 Conformity criteria for composition of rapid hardening hydraulic road binders . 16 9.4 Conformity criteria for properties of constituents of rapid hardening hydraulic road binders . 16 Annex ZA
(informative)
Clauses of this European Standard addressing the provisions of the EU Construction Products Directive . 17 Bibliography. 21
SIST EN 13282-1:2013
EN 13282-1:2013 (E) 3 Foreword This document (EN 13282-1:2013) has been prepared by Technical Committee CEN/TC 51 "Cement and building limes", the secretariat of which is held by NBN. 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 September 2013, and conflicting national standards shall be withdrawn at the latest by September 2013. 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 and EN 13282-21) supersede ENV 13282:2000. This document has been prepared under a mandate given to CEN by the European Commission 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 European Standard. This European Standard, EN 13282, Hydraulic road binders consists of the following parts: Part 1: Rapid hardening hydraulic road binders — Composition, specifications and conformity criteria Part 2: Normal hardening hydraulic road binders — Composition, specifications and conformity criteria Part 3: Conformity evaluation According to the CEN/CENELEC Internal Regulations, 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, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom.
1) To be published. SIST EN 13282-1:2013
EN 13282-1:2013 (E) 4 Introduction Depending on the local experience and availability of products and materials, different binders are used for road bases and sub-bases, capping layers, soil treatment (soil stabilisation and improvement) in Europe. These include cements conforming to EN 197-1, building limes conforming to EN 459-1 and hydraulic road binders presently defined in existing national standards or national technical approvals.
Hydraulic road binders are finished products, produced in a factory and supplied ready for use. They are differentiated according to their strength development in rapid hardening hydraulic road binders, specified in this part of this European Standard and normal hardening hydraulic road binders, specified in prEN 13282-2. Part 3 of EN 13282 defines the conformity evaluation procedure for hydraulic road binders according to this standard. Binders obtained through mixing of their constituents on site are not covered by this European Standard. Cements, masonry cements and building limes are also outside the scope of this European Standard, as they are defined in specific European Standards.
SIST EN 13282-1:2013
EN 13282-1:2013 (E) 5 1 Scope This European Standard defines and gives the specifications for rapid hardening hydraulic road binders, produced in a factory and supplied ready for treatment of materials for bases, sub-bases and capping layers as well as earthworks, in road, railway, airport and other types of infrastructure. It includes the mechanical, physical and chemical requirements and the classification of these binders based on their compressive strength at 7 days and 28 days. It also includes the conformity criteria and evaluation procedures to be applied by the manufacturer. 2 Normative references The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 196-1, Methods of testing cement — Part 1: Determination of strength EN 196-2, Methods of testing cement — Part 2: Chemical analysis of cement EN 196-3, Methods of testing cement — Part 3: Determination of setting times and soundness EN 196-6, Methods of testing cement — Part 6: Determination of fineness EN 196-7, Methods of testing cement — Part 7: Methods of taking and preparing samples of cement EN 197-1, Cement — Part 1: Composition, specifications and conformity criteria for common cements EN 459-1, Building lime — Part 1: Definitions, specifications and conformity criteria EN 459-2, Building lime — Part 2: Test methods EN 13282-3:2013, Hydraulic road binders — Part 3: Conformity evaluation ISO 10694, Soil quality — Determination of organic and total carbon after dry combustion (elementary analysis) 3
Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1 autocontrol testing continual testing by the manufacturer of rapid hardening hydraulic road binder spot samples taken at the point(s) of release from the factory/depot 3.2 control period period of production and dispatch identified for the evaluation of the autocontrol test results 3.3 characteristic value value of a required mechanical, physical or chemical property outside of which lies a specified percentage, the percentile Pk, of all the values of the population SIST EN 13282-1:2013
EN 13282-1:2013 (E) 6 3.4 specified characteristic value characteristic value of a mechanical, physical or chemical property which in the case of an upper limit is not to be exceeded or in the case of a lower limit is, as a minimum, to be reached 3.5 single result limit value value of a mechanical, physical or chemical property which – for any single test result – in the case of an upper limit is not to be exceeded or in the case of a lower limit is, as a minimum, to be reached 3.6 allowable probability of acceptance CR
for a given sampling plan, the allowed probability of acceptance of a rapid hardening hydraulic road binder with a characteristic value outside the specified characteristic value 4 Hydraulic road binder 4.1 General A hydraulic binder, when mixed with water, hardens both in the air and under water and remains solid, even under water. A hydraulic road binder is a factory produced hydraulic binder, supplied ready for use, having properties specifically suitable for treatment of materials for bases, sub-bases and capping layers as well as earthworks, in road, railway, airport and other types of infrastructures. NOTE 1 Hydraulic road binders are not only used for road construction but this general designation will be used for a better understanding in this document. A hydraulic road binder consists of a powder made from a blend of different constituents and statistically homogeneous in composition. A high degree of uniformity in all properties shall be obtained through continuous mass production processes.
NOTE 2 Continuous production refers to the process, the definition of the product, its composition and properties but does not imply a 24 h production. 4.2 Rapid hardening hydraulic road binder A rapid hardening hydraulic road binder is a hydraulic road binder which conforms to the requirements for strength at 7 days and 28 days, fineness, initial setting time, soundness, sulfate content and composition, as given in Clause 7. 5 Constituents 5.1 Main constituents The main constituents of a rapid hardening hydraulic road binder are those in a proportion exceeding 10 % by mass. They shall be selected from the following list: a) constituents defined as main constituents in EN 197-1: 1) Portland cement clinker (K); 2) granulated blastfurnace slag (S); 3) pozzolanic materials: natural pozzolana (P) and natural calcined pozzolana (Q); 4) fly ash: siliceous fly ash (V) and calcareous fly ash (W); SIST EN 13282-1:2013
EN 13282-1:2013 (E) 7 5) burnt shale (T); 6) limestone (L, LL); b) hydrated calcium lime (CL-S) and natural hydraulic lime (NHL) which conform to EN 459-1. The loss on ignition of fly ash, determined in accordance with EN 196-2, but using an ignition time of 1 h, or the content of unburnt carbon, determined in accordance with ISO 10694, shall not exceed 9,0 % by mass. 5.2 Minor additional constituents Minor additional constituents may be added in a proportion not exceeding 10 % by mass in total.
Minor additional constituents are specially selected, inorganic natural mineral materials, inorganic mineral materials derived from the clinker or calcium lime production process, or constituents as specified in 5.1 unless they are included as main constituents which, after appropriate preparation and on account of their particle size distribution, improve the physical properties of the binder (such as workability or water retention). They can be inert or have slightly hydraulic, latent hydraulic or pozzolanic properties. However, no requirements are set for them in this respect. Minor additional constituents shall be correctly prepared, i.e. selected, homogenised, dried and comminuted depending on their state of production or delivery. Minor additional constituents shall not impair the properties of the binder. 5.3 Calcium sulfate (Cs) Calcium sulfate, gypsum, hemihydrate or anhydrite (natural or artificial) or any mixture of them may be added to the other constituents of the rapid hardening hydraulic road binder during its manufacture. 5.4 Additives Additives, for the purpose of this European Standard, are constituents not covered in 5.1 to 5.3 which are added to improve the manufacture or the properties of the rapid hardening hydraulic road binder.
The total quantity of additives on dry basis should not exceed 1 % by mass of the binder. A total content of additives greater than 1 % by mass is permitted provided that quantity and function of each of them are stated on the packaging and/or on the delivery note. Additives shall not impair the properties of the rapid hardening hydraulic road binder. 6 Classification Rapid hardening hydraulic road binders are designated by the letter E followed by a number, representing the strength class. The strength class of a rapid hardening hydraulic road binder shall be determined by the compressive strength at 7 days and 28 days tested in accordance with EN 196-1. Three strength classes are defined in Table 1: E 2, E 3 and E 4 (see 7.1). For class E 4, a sub-class indicated as E 4-RS and representing rapid setting rapid hardening hydraulic road binders is defined. NOTE 1 An E 1 class is not included in this European Standard in order to be consistent with the strength classes defined in prEN 13282-2. NOTE 2 Strength classes are incorporated for the purpose of classifying product performance and carrying out attestation of conformity and are not related to the mechanical performance of soils or other materials treated with rapid hardening hydraulic road binders. SIST EN 13282-1:2013
EN 13282-1:2013 (E) 8 7 Requirements 7.1 Mechanical requirements The compressive strength of rapid hardening hydraulic road binders shall be determined in accordance with EN 196-1, the cement being replaced by the rapid hardening hydraulic road binder. The prisms shall be produced, stored and tested as specified in EN 196-1, unless otherwise specified below. The prisms shall be removed from the mould 24 h after preparation and then stored, pending the test, at a relative humidity of not less than 90 %. Should it not be possible to remove the prisms from the mould at 24 h, it is permitted to remove them at a later age, and this age shall be stated in the test report. When using moist air storage boxes the prisms shall not be allowed to come into contact with the water poured into the boxes up to a level of about 10 mm. The lid shall close tightly and any felt seals shall be kept damp. Rapid hardening hydraulic road binders shall conform to the requirements given in Table 1. Table 1 — Mechanical requirements given as characteristic values Strength class Compressive strength, in MPa at 7 days at 28 days E 2 ≥ 5,0 ≥ 12,5 ≤ 32,5 E 3 ≥ 10,0 ≥ 22,5 ≤ 42,5 E 4 ≥ 16,0 ≥ 32,5 ≤ 52,5 E 4-RS ≥ 16,0 ≥ 32,5 _
7.2 Physical requirements 7.2.1 Fineness The fineness of a rapid hardening hydraulic road binder shall be determined by sieving. Sieving shall be carried out in accordance with EN 196-6. The sieve residue shall conform to the requirement given in Table 2. 7.2.2 Initial setting time Initial setting time, determined in accordance with EN 196-3, shall conform to the requirement given in Table 2. 7.2.3 Soundness Expansion, determined in accordance with EN 196-3, shall conform to the requirement given in Table 2. Rapid hardening hydraulic road binders containing more than 4,0 % by mass of SO3 shall, in addition, withstand the cold water test described in EN 459-2. They shall be regarded as unsound if, following storage in water, the two specimens have warping or gaping edge cracks either on their own or in conjunction with crazing. SIST EN 13282-1:2013
EN 13282-1:2013 (E) 9 Table 2 — Physical requirements given as characteristic values Hydraulic road binder Fineness residue by mass at 90 µm % Initial setting time min Soundness (expansion) mm E 2 E 3 E 4
≤ 15
≥ 90
≤ 10 E 4-RS ≤ 15 ≤ 90 ≤ 10
7.3
Chemical requirement - Sulfate content The sulfate content, expressed as the percentage of SO3 by mass, and determined in accordance with EN 196-2, shall not exceed 4,0 %. A sulfate content of up to 7,0 % by mass (classes E 4 and E 4-RS) and 9,0 % by mass (classes E 2 and E 3), respectively, is permitted for the following rapid hardening road binders, provided that they meet the requirements in 7.2.3: rapid hardening hydraulic road binders containing burnt shale (T) or calcareous fly ash (W), only when most of the sulfate comes from the main constituents; rapid hardening hydraulic road binders containing more than 65 %, by mass, of granulated blastfurnace slag (S). A sulfate content of up to 9,0 % by mass (classes E 4 and E 4-RS) and 11,5 % (classes E 2 and E 3), respectively, is permitted for binders containing burnt shale or calcareous fly ash, only when the greater part of the sulfate content comes from the burnt shale or from the calcareous fly ash.
7.4
Composition 7.4.1 Declaration of composition The constituents of a rapid hardening hydraulic road binder, and their average proportion in the finished product, shall be recorded. When requested, the main constituents (5.1) shall be declared by the manufacturer (see Clause 8), as well as the presence of calcium sulfate (5.3) if the sulfate (SO3) content of the rapid hardening hydraulic road binder exceeds 4,0 %. 7.4.2 Requirements on composition The content of Portland cement clinker of rapid hardening hydraulic road binders shall be not less than 20 %. The composition of a rapid hardening hydraulic road binder shall meet, for all main constituents taken individually, the values documented by the manufacturer and declared if requested (see 7.4.1 and Clause 8) within absolute tolerances given in Table 3. When SO3 content exceeds 4,0 %, the notation Cs shall be added in the declaration (see 7.4.1). SIST EN 13282-1:2013
EN 13282-1:2013 (E) 10 Table 3 — Declared composition and tolerances Proportion of a main constituenta declared Absolute tolerancea % > 20 ± 10 > 10 ≤ 20 ± 5 a Values in percentage by mass related to the total mass of the main and minor additional constituents excluding calcium sulfate and additives.
EXAMPLE: For a declared composition of S 55, K 35, V 10, the actual composition of the rapid hardening hydraulic road binder would be within the following limits (related to the total mass of HRB with the exclusion of calcium sulfate (Cs) and additives): S : 45 % to 65 %, K : 25 % to 45 %, V : 5 % to 15 %. 7.5 Durability requirements In many applications, particularly in severe environmental conditions, the choice of binder has an influence on the durability of the finished works, e.g. soundness, frost resistance or chemical resistance. The choice of binder, particularly with regard to type and strength class for different applications and exposure classes, shall follow the appropriate standards and/or regulations valid in the place of use. 7.6 Dangerous substances National regulations on dangerous substances may require verification and declaration on release, and sometimes content, when construction products covered by this standard are placed on those markets. In the absence of European harmonised test methods, verification and declaration on release/content should be done taking into account national provisions in the place of use. NOTE An informative database covering European and national provisions on dangerous substances is available at the Construction web site on EUROPA accessed through: http://ec.europa.eu/enterprise/construction/cpd-ds/. 8 Standard designation Rapid hardening hydraulic road binders shall be identified on accompanying documents and, where relevant, on the packaging, by: the letters HRB; the strength class; the composition (when requested). When the constituents of the rapid hardening hydraulic road binder and their average proportion are to be declared (see 7.4.1), they shall be included in the designation using the symbol of each constituent (see 5.1 and 5.3).
Where limes are used as constituents, the part of their standard designation according to EN 459-1 referring to the type shall be included in the designation using the symbol of each constituent (CL-S or NHL). SIST EN 13282-1:2013
EN 13282-1:2013 (E) 11 Particular properties relevant to the intended use are not included in the standard designation; advice may be given on the delivery documents or packaging. EXAMPLE 1 (compulsory information): A rapid hardening hydraulic road binder conforming to this European Standard, of strength class E 4 and containing at least 20 % Portland cement clinker, is identified by: Rapid hardening hydraulic road binder EN 13282-1; HRB E 4. EXAMPLE 2 (when declaration is requested): A rapid hardening hydraulic road binder conforming to this European Standard, of strength class E 3 and declared to consist of 20 % clinker, 35 % granulated blast furnace slag, 30 % siliceous fly ash and 15 % hydrated calcium lime, is identified by: Rapid hardening hydraulic road binder EN 13282-1; HRB E 3 K20, S35, V30, CL-S15. EXAMPLE 3 (when declaration is requested): A rapid hardening hydraulic road binder conforming to this European Standard, of strength class E 4 and declared to consist of 46 % granulated blastfurnace slag, 35 % clinker, 10 % siliceous fly ash and 9 % minor additional constituents, is identified by: Rapid hardening hydraulic road binder EN 13282-1; HRB E 4 S46, K35, V10. 9 Conformity criteria 9.1 General requirements The manufacturing process and its control shall ensure that the composition of a rapid hardening hydraulic road binder is kept within the limits specified in this European Standard. Conformity of rapid hardening hydraulic road binders to this European Standard shall be continually evaluated on the basis of testing of spot samples. The properties, test methods and the minimum testing frequencies for the autocontrol testing by the manufacturer are specified in Table 4. Concerning testing frequencies for rapid hardening hydraulic road binders not being dispatched continuously and other details, see EN 13282-3. NOTE 1 For certification of conformity by an approved certification body, conformity of rapid hardening hydraulic road binders with this European Standard is evaluated in accordance with Annex ZA and the relevant cited clauses of EN 13282-3. NOTE 2 This European Standard does not deal with acceptance inspection at delivery. SIST EN 13282-1:2013
EN 13282-1:2013 (E) 12
Table 4 — Properties, test methods and minimum testing frequencies for the autocontrol testing by the manufacturer, and the statistical assessment procedure Property (reference) Test method a b Minimum testing frequency Statistical assessment by Variables c Attributes d Strength (7.1) EN 196-1 and see 7.1 1 per week x
Initial setting time (7.2.2) EN 196-3 1 per week
x Fineness (7.2.1) EN 196-6 1 per week
x Soundness (7.2.3) SO3 ≤ 4,0 % EN 196-3 1 per week
x SO3 > 4,0 % EN 196-3 and EN 459-2 Sulfate content (7.3) EN 196-2 1 per week
x Composition (7.4) - e 1 per month
x a Where allowed in the relevant part of EN 196, other methods than those indicated may be used provided they give results correlated and equivalent to those obtained with the reference method. b The methods used to take and prepare samples shall be in accordance with EN 196-7. c If the data are not normally distributed, then the method of assessment may be decided on a case by case basis. d If the number of samples is at least two per week the assessment may be made by variables. e Appropriate test method chosen by the manufacturer.
9.2 Conformity criteria for mechanical, physical and chemical properties and evaluation procedure 9.2.1 General Conformity of rapid hardening hydraulic road binders to the requirements for mechanical, physical and chemical properties in this European Standard is assumed if the conformity criteria specified in 9.2.2 and 9.2.3 are met. Conformity shall be evaluated on the basis of continual sampling using spot samples taken at the point of release and on the basis of the test results obtained on all autocontrol samples taken during the control period. 9.2.2 Statistical conformity criteria 9.2.2.1 General Conformity shall be formulated in terms of a statistical criterion based on: the specified characteristic values for mechanical, physical and chemical properties as given in 7.1, 7.2, and 7.3 of this European Standard; the percentile Pk on which the specified characteristic value is based, as specified in Table 5; the allowable probability of acceptance CR, as given in Table 5. SIST EN 13282-1:2013
EN 13282-1:2013 (E) 13 Table 5 — Required values Pk and CR
Mechanical requirements Physical
requirements and SO3 content
7 day and 28 day strength (lower limit) 28 day strength (upper limit) Percentile Pk on which the characteristic value is based 5 % 10 % Allowable probability of acceptance CR 5 %
NOTE Conformity evaluation by a procedure based on a finite number of test results can only produce an approximate value for the proportion of results outside the specified characteristic value in a population. The larger the sample size (number of test results), the better the approximation. The selected probability of acceptance CR controls the degree of approximation by the sampling plan. Conformity with the requirem
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