Publishingand copyright information

The BSI copyright notice displayed in this document indicates when the document was last issued.

The following BSI reference relates to the work on this standard:

Committee reference B/502

Draft for comment: DC 12/30275706

Publication history

First published February 2003

Second (present) edition, May 2013

Foreword

Publishing information

This part of PD 6682 is published by BSI Standards Limited, under licence from The British Standards Institution and came into effect on 30 November 2009. It was prepared by Technical Committee B/502 Aggregates. A list of organizations represented on this committee can be obtained on request to its secretary.

Supersession

PD 6682-1:2009+A1:2013 supersedes PD 6682-1:2009, which is withdrawn.

Information about this document

Text introduced or altered by Amendment No. 1 is indicated in the text by tags . Minor editorial changes are not tagged.

Relationship with other publications

This part of PD 6682 gives guidance on the use of BS EN 12620:2002+A1 which specifies requirements for aggregates for concrete.

Attention is drawn to the fact that BS EN 12620:2002+A1 fully takes into account the requirements of the European Commission mandate M125, Aggregates [1], given under the EU Construction Products Directive (89/106/EEC) [2].

This part of PD 6682 is one of nine parts that give guidance on the use and application of a series of European Standards for aggregates. These European Standards were prepared by CEN/TC 154, Aggregates, and have been adopted as British Standards. BS EN 12620:2002+A1 superseded BS 882:1992 and BS 1047:1983, which were withdrawn in June 2004.

Guidance on the other European Standards in the series is given in the following parts of PD 6682.

Part 2: Aggregates for bituminous mixtures and surface treatments for roads, airfields and other trafficked areas – Guidance on the use of BS EN 13043
Part 3: Aggregates for mortar – Guidance on the use of BS EN 13139
Part 4: Lightweight aggregates for concrete, mortar and grout – Guidance on the use of BS EN 13055‑1
Part 5: Lightweight aggregates for bituminous mixtures and surface treatments and for unbound and bound applications excluding concrete, mortar and grout – Guidance on the use of BS EN 13055‑2
Part 6: Aggregates for unbound and hydraulically bound materials for use in civil engineering work and road construction – Guidance on the use of BS EN 13242
Part 7: Armourstone – Guidance on the use of BS EN 13383
Part 8: Aggregates for railway track ballast – Guidance on the use of BS EN 13450
Part 9: Guidance on the use of European test method standards

Presentational conventions

The word “should” is used to express recommendations of this standard. The word “may” is used in the text to express permissibility, e.g. as an alternative to the primary recommendation of the Clause. The word “can” is used to express possibility, e.g. a consequence of an action or an event.

Contractual and legal considerations

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

Compliance with a Published Document cannot confer immunity from legal obligations.

Introduction

This part of PD 6682 provides guidance on the use of BS EN 12620:2002+A1 in the UK. BS EN 12620:2002+A1 superseded the corresponding conflicting British Standards for concreting aggregates, BS 882:1992 and BS 1047:1983. However, whilst BS EN 12620:2002+A1 describes concreting aggregates in a different manner to established UK practice (and in some cases with different test methods to evaluate aggregate properties), there is no change to the essential character of the aggregates in actual use in the UK.

BS EN 12620:2002+A1 has been amended twice since it was first published in 2002. In 2004, Corrigendum No. 1 corrected the CE Marking information in Annex ZA and amended a note about national regulations for dangerous substances. Amendment No. 1 introduced additional requirements for recycled aggregates and was published in June 2008.

This UK guidance recommends limiting values for aggregate properties within the ranges permitted in BS EN 12620:2002+A1. Where possible, these recommended values are equivalent to those previously specified in the superseded standards. This has ensured that there has been no change to the essential characteristics of the aggregates in actual use in the UK.

BS EN 12620:2002+A1 covers aggregates with an oven-dried particle density greater than 2.00 Mg/m³ (2 000 kg/m³) for all concrete, including concrete conforming to BS EN 206‑1:2000+A3. It also covers recycled aggregate with densities between 1.50 Mg/m³ (1 500 kg/m³) and 2.00 Mg/m³ (2 000 kg/m³) with appropriate caveats and fine recycled aggregate (D = 4 mm or less; see 4.1) with appropriate caveats. It is intended that BS EN 206‑1:2000+A3 be used in conjunction with its complementary British Standards, BS 8500‑1 and BS 8500‑2, which gives national provisions where they are permitted in BS EN 206‑1:2000+A3.

An example specification listing recommended BS EN 12620:2002+A1 aggregate designations for particular properties is provided in Annex A. It can be applied to most general uses of aggregates in concrete. For particular aggregate sources and/or end uses, specifiers might need to specify additional properties. Some recommended BS EN 12620:2002+A1 aggregate designations for particular aggregate sources and/or end uses in the UK are given in Annex B. Where requirements vary dependent on the particular end use, appropriate values need to be inserted for the particular properties.

BS EN 12620:2002+A1 now includes requirements for classification of the constituents of coarse recycled aggregate within its scope and indicates that their suitability needs to be assessed in accordance with the regulatory requirements in the place of use. In the UK, this can include compliance with the WRAP Quality Protocol for the production of aggregates from inert waste [3].

For concrete conforming to BS EN 206‑1:2000+A3, there is further guidance in BS 8500‑1 and BS 8500‑2 on the use of recycled aggregates. BS 8500‑1 uses two definitions of recycled aggregate that are not listed in BS EN 12620:2002+A1:

RA: recycled aggregate principally comprising crushed masonry (brickwork and blockwork);
RCA: recycled aggregate principally comprising crushed concrete.

BS 8500‑2 contains requirements, where permitted by BS EN 206‑1:2000+A3, for both the use and testing of recycled concrete aggregates (RCA) and recycled aggregates (RA).

NOTE Both parts of BS 8500 will be amended in due course to align the definition of RA and RCA with the categories now used in BS EN 12620:2002+A1.

BS EN 12620:2002+A1 specifies grades in terms of the consistency of the coarse aggregate with the supplier declaring the typical grading for the aggregate and working to tolerances defined in BS EN 12620:2002+A1. These tolerances are restricted by BS EN 12620:2002+A1 to given values.

1 Scope

This part of PD 6682 gives recommendations and guidance on the use in the UK of BS EN 12620:2002+A1, which specifies the properties of aggregates and filler aggregates obtained by processing natural, manufactured or recycled materials and mixtures of these aggregates for use in concrete. BS EN 12620:2002+A1 covers aggregates having an oven-dried particle density greater than 2.00 Mg/m³ (2 000 kg/m³) for all concrete, including concrete conforming to BS EN 206‑1:2000+A3 in roads and other pavements and for use in precast concrete products.

It also covers recycled aggregate with densities between 1.50 Mg/m³ (1 500 kg/m³) and 2.00 Mg/m³ (2 000 kg/m³) with appropriate caveats and fine recycled aggregate (D = 4 mm or less) with appropriate caveats.

NOTE Lightweight aggregates for concrete are covered by BS EN 13055‑1.

2 Normative references

3 Overview of BS EN 12620:2002+A1

3.1 General requirements

3.2 Constituents of recycled aggregate

3.3 Evaluation of conformity

4 Requirements of BS EN 12620:2002+A1

4.1 General

4.2 Geometrical requirements

4.3 Mechanical and physical requirements

4.4 Weathering (durability) requirements

4.5 Chemical requirements

4.6 Constituents of coarse recycled aggregates

4.7 Evaluation of conformity

4.8 Designation and description

4.9 Marking and labelling

5 Provisions of the EU Construction Products Directive

6 Additional considerations

Bibliography

PD 6682-1:2009+A1:2013

Aggregates - Aggregates for concrete. Guidance on the use of BS EN 12620

Current

Published:

30 Nov 2009