SR EN 12697-40:2012

Bituminous mixtures - Test methods for hot mix asphalt - Part 40: In situ drainability

This European Standard describes a method to determine the in-situ relative hydraulic conductivity, at specific locations, of a road surfacing that is designed to be permeable. An estimate of the average value for the surfacing is obtained from the mean value of a number of determinations on each section of road. The test measures the ability to drain water (drainability) achieved in-situ of a surfacing. As such, it can be used as a compliance check to ensure that a permeable surface course has the required properties when it is laid. The test can also be used subsequently to establish the change of drainage ability with time. For the test to be valid, the surface of the test area should be clean and free from detritus. Measurements can be made when a road is either wet or dry, but not if it is in a frozen state.

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General information

Status : Withdrawn
Approval date : 11/29/2012
Withdrawal date : 5/29/2020
Number of pages : 15
ICS : 93.080.20 Road construction materials
Technical Committee : 187 - Roads

Relations with other standards:

Replaces STAS 1338/1-84
Replaces STAS 1338/3-84
Replaces SR EN 12697-40:2006
Replaced by SR EN 12697-40:2020