Contents
Contents..................................................................................................................... 5
Foreword ................................................................................................................... 6Introduction .............................................................................................................. 7
Materials concerned ............................................................................................... 10
Roadway foundations ........................................................................................... 10
"Non-standard" materials .......................................................................................... 10
Materials "outside standard application guide" ........................................................ 12
Capping layers ...................................................................................................... 12
Analysis of status of materials with respect to standard ............................................ 12
Materials outside the scope of GTR - GTS and outside the scope of NF P 94-102-1 14
Analysis of valorization approach ........................................................................ 15
Identification of risk factor ................................................................................... 17
Stages of identification and examples of risk factors. ................................................ 17
Incorporation of heterogeneity of material ................................................................ 17
Risk assessment .................................................................................................... 18
Identification of source and material. ........................................................................ 18
Laboratory study ........................................................................................................ 21
Test site.......................................................................................................................29
Implementation of derogation .............................................................................. 33
Derogation formulation.............................................................................................. 33
Derogation validation ................................................................................................ 33
Glossary of abbreviations ..................................................................................... 34
Appendix 1: Normative and regulatory references............................................. 35
Standard ................................................................................................................ 35
Other regulatory texts ........................................................................................... 37
Appendix 2: Contents of a regional technical guide and validation procedure by the CFTR. ...................................................................................................................... 39
Appendix 3: Examples of the application of a methodical approach for local material valorization ............................................................................................................. 40
