BS EN 12620-2002 pdf download – Aggregates for concrete
1 Scope
This European Standard 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. It covers aggregates having an oven dried particle density greater than 2,00 Mg/m 3 (2 000 kg/m 3) for all concrete, including concrete in conformity with EN 206-1 and concrete used in roads and other pavements and for use in precast concrete products. It also specifies that a quality control system is in place for use in factory production control and it provides for the evaluation of conformity of the products to this European Standard.
This standard does not cover filler aggregates to be used as a constituent in cement or as other than inert filler aggregates for concrete.
NOTE 1 Aggregates used in construction should comply with all the requirements of this European Standard. As well as familiar and traditional natural and manufactured aggregates Mandate M/125 “Aggregates” included recycled aggregates and some materials from new or unfamiliar sources. Recycled aggregates are included in the standards and new test methods for them are at an advanced stage of preparation. For unfamiliar materials from secondary sources, however, the work on standardisation has only started recently and more time is needed to define clearly the origins and characteristics of these materials.
In the meantime such unfamiliar materials when placed on the market as aggregates must comply fully with this standard and national regulations for dangerous substances (see Annex ZA of the standard) depending upon their intended use. Additional characteristics and requirements may be specified on a case by case basis depending upon experience of use of the product, and defined in specific contractual documents. NOTE 2 Properties for lightweight aggregates are specified in prEN 13055-1:1997.
2 Normative references
This European Standard incorporates by dated or undated reference, provisions from other publications. These normative references are cited at the appropriate places in the text, and the publications are listed hereafter. For dated references, subsequent amendments to or revisions of any of these publications apply to this European Standard only when incorporated in it by amendment or revision. For undated references, the latest edition of the publication referred to applies (including amendments).
N 196-21:1989, Methods of testing cement — Part 21: Determination of the chloride, carbon dioxide and alkali content of cement.
EN 932-3, Tests for general properties of aggregates — Part 3: Procedure and terminology for simplified petrographic description.
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 933-3, Tests for geometrical properties of aggregates — Part 3: Determination of particle shape — Flakiness index.
EN 933-4, Tests for geometrical properties of aggregates — Part 4: Determination of particle shape — Shape index.
EN 933-7, Tests for geometrical properties of aggregates — Part 7: Determination of shell content — Percentage of shells in coarse aggregates.
EN 933-8, Tests for geometrical properties of aggregates — Part 8: Assessment of fines — Sand equivalent test.
EN 933-9, Tests for geometrical properties of aggregates — Part 9: Assessment of fines — Methylene blue test.
EN 933-10, Tests for geometrical properties of aggregates — Part 10: Assessment of fines — Grading of fillers (air jet sieving).
EN 1097-1, Tests for mechanical and physical properties of aggregates — Part 1: Determination of the resistance to wear (micro-Deval).
3 Terms and definitions
For the purposes of this European Standard, the following terms and definitions apply.
granular material used in construction. Aggregate may be natural, manufactured or re-cycled
natural aggregate
aggregate from mineral sources which has been subjected to nothing more than mechanical processing
all-in aggregate
aggregate consisting of a mixture of coarse and fine aggregates
NOTE It can be produced without separating into coarse and fine fractions or it may be produced by combining coarse and fine aggregate.
manufactured aggregate
aggregate of mineral origin resulting from an industrial process involving thermal or other modification
recycled aggregate
aggregate resulting from the processing of inorganic material previously used in construction
filler aggregate
aggregate, most of which passes a 0,063 mm sieve, which can be added to construction materials to provide certain properties