What is EN 12620 - Aggregates for concrete about?
EN 12620 on the aggregates for concrete 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.
EN 12620 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.
What does EN 12620 - Aggregates for concrete cover?
EN 12620 on the aggregates for concrete covers aggregates having an oven-dried particle density greater than 2,00 Mg/m3 (2 000 kg/m3) for all concrete, including concrete in conformity with BS EN 206-1 and concrete used in roads and other pavements and for use in precast concrete products.
EN 12620 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 recycled fine aggregate (4 mm) with appropriate caveats.
EN 12620 does not cover filler aggregates to be used as a constituent in cement or as other than inert filler aggregates for concrete.
What has changed since the last update?
The key changes made to EN 12620 on the aggregates for concrete include:
• The implementation of CEN amendment A1:2008
• The implementation of CEN corrigendum May 2004, replacement in Clause 1 of Note 1, correction to Figure ZA.1 and Figure ZA.3
What is the contents of EN 12620 - Aggregates for concrete?
• Scope
• Normative references
• Terms and definitions
• Geometrical requirements
• Physical requirements
• Chemical requirements
• Evaluation of conformity
• Designation
• Marking and labelling
• Annex A (informative) Illustration of grading requirements for most commonly used sizes for graded coarse aggregates
• Annex B (informative) Guidance on the description of coarseness/fineness of fine aggregates
• Annex C (normative) Reduced grading tolerances on producer’s declared typical grading for fine aggregate
• Annex D (normative) Assessment of fines
• Annex E (informative) Guidance on the use of aggregates in concrete
• Annex F (informative) Notes for guidance on the freezing and thawing resistance of aggregates
• Annex G (informative) Guidance on the effects of some chemical constituents of aggregates on the durability of concrete in which they are incorporated
• Annex H (normative) Factory production control
• Annex ZA (informative) Clauses of this European Standard addressing essential requirements or other provisions of EU Directives
• Bibliography