CEN/TR 16142:2011

Concrete - A study of the characteristic leaching behaviour of hardened concrete for use in the natural environment

Publication date:   May 17, 2011

General information

60.60 Standard published   Mar 9, 2011


CEN/TC 51 Cement and building limes

Technical Report

91.100.10   Cement. Gypsum. Lime. Mortar | 91.100.30   Concrete and concrete products



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This Technical Report describes a method for characterising the time-dependent leaching behaviour of components from hardened concrete, for use in the natural environment.
This method specifies the procedures for determining the controlling mechanism(s) for leaching of components, their effective diffusion coefficients, in the case of diffusion-control and their cumulative release behaviour over any period of time.
This characterisation method consists of two leaching test procedures. A potential or availability (pulverised specimen) test and a diffusion (tank) [monolithic specimen] test.
The test procedures produce leachates, the analytical procedures for which are not included in this Technical Report.
This Technical Report does not comprise a compliance method.
NOTE 1 The information obtained from the method is quantitative. In the absence, however, of similar information for other construction materials or compliance criteria for acceptable/unacceptable performance of hardened concrete, the data obtained with neither permit a relative nor an absolute assessment of the environmental quality/compatibility of the concrete, unless, by default, in the case where leached concentrations of environmentally significant components are at, or below, their analytical limits of detection.
NOTE 2 In principle, this method could be used to characterise the leaching behaviour of hardened concrete, irrespective of the exposure conditions (e.g. natural environment, contact with drinking water etc.) which the concrete would experience in service. It should be noted, however, that a European standard test method for the extraction/migration of mineral micropollutants is also likely to be developed by CEN/TC 164 - Water supply.
NOTE 3 Analytical procedures for determining concentrations of components in leachates and which may be suitable for the purposes of this Technical Report are being developed by CEN/TC 292 - (...)

Related legislation

Legislation related to this standard


Construction products


Regulation (eu) No 305/2011 of the European Parliament and of the Council of 9 march 2011 laying down harmonised conditions for the marketing of construction products and repealing council directive 89/106/eec

Life cycle


CEN/TR 16142:2011
60.60 Standard published
Mar 9, 2011