National foreword

This British Standard is the UK implementation of EN 13383‑2:2019. Together with BS EN 13383‑2:2013, it supersedes BS EN 13383‑2:2002, which is withdrawn.

The UK participation in its preparation was entrusted to Technical Committee B/502, Aggregates.

A list of organizations represented on this committee can be obtained on request to its secretary.

This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application.

Compliance with a British Standard cannot confer immunity from legal obligations.

This British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 July 2019.

This European Standard was approved by CEN on 13 August 2018.

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, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom.

European foreword

This document (EN 13383‑2:2019) has been prepared by Technical Committee CEN/TC 154 “Aggregates”, the secretariat of which is held by BSI.

This document shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by month year of December 2019, and conflicting national standards shall be withdrawn at the latest by month year of December 2019.

Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN shall not be held responsible for identifying any or all such patent rights.

This document supersedes EN 13383‑2:2002.

In comparison with the previous version, the following changes have been made:

changes and clarifications to the sampling and sample reduction clauses, including a new informative Annex on sampling from waterborne plant
introduction of requirements for sample preparation for the Micro-Deval test previously in EN 13383‑1.
deletion of an unused wet sieving method for the determination of particle size distribution of coarse gradings of armourstone
removal to an informative annex of a previously normative alternative to the reference method for determination of mass distribution of light and heavy gradings.

Otherwise the majority of the changes from the previous version are editorial.

EN 13383Armourstone consists of the following parts:

— Part 1: Specifications

— Part 2: Test methods

1 Scope

This document specifies sampling and test methods for natural, artificial and recycled aggregates for use as armourstone. This document specifies the reference methods to be used for type testing and in case of dispute where an alternative method has been used. For other purposes, in particular factory production control, other methods may be used provided that an appropriate working relationship with the test method has been established.

2 Normative references

3 Terms and definitions

4 Methods for sampling

4.1 General

4.2 Principles of sampling

4.3 Sampling plan

4.4 Apparatus

4.5 Sampling methods

4.6 Sample reduction

4.7 Sample preparation for Micro-Deval test where the appropriate particle size is not available

4.8 Marking, packaging and dispatch of samples

4.9 Sampling registration

5 Determination of the particle size distribution of coarse gradings

5.1 Principle

5.2 Apparatus

5.3 Preparation of test portion

5.4 Procedure

5.5 Calculation and expression of results

5.6 Test report

6 Determination of the mass distribution of light and heavy gradings

6.1 Principle

6.2 Apparatus

6.3 Preparation of test portion

6.4 Procedure

6.5 Calculation and expression of results

6.6 Test report

7 Determination of the percentage of pieces of armourstone with a length-to-thickness ratio greater than 3

7.1 Principle

7.2 Apparatus

7.3 Preparation of test portion

7.4 Procedure

7.5 Calculation and expression of results

7.6 Test report

8 Determination of particle density and water absorption

8.1 Principle

8.2 Apparatus

8.3 Materials

8.4 Preparation of test portion

8.5 Test procedure

8.6 Calculation and expression of results

8.7 Test report

9 Determination of resistance to freezing and thawing

9.1 Principle

9.2 Apparatus

9.3 Materials

9.4 Test portions

9.5 Procedure

9.6 Calculation and expression of results

9.7 Test report

10 Determination of signs of “Sonnenbrand” and disintegration of steel slags

10.1 Principle

10.2 Apparatus

10.3 Materials

10.4 Preparation of test portions

10.5 Procedure

10.6 Calculation and expression of results

10.7 Test report

Bibliography

BS EN 13383-2:2019

Armourstone - Test methods

Current, Under Review

Published:

31 Jul 2019