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Soils containing organic matter

Soils containing organic matter

Soils containing organic matter

(OP)
French administration is creating a database on the use of unusual material in road engineering. A part of this database concerns natural materials containing organic matter, and we would like to know about the practice in other countries with such materials.

According a widely use guideline in France, soils containing less than 3% of organic matter are considered as good materials for use in road embankments for example (if other characterization are good). Between 3 and 10 % of organic matter, soils can be used in road embankments but their use in vegetal cover will be prefered. Up to 10%, their use is prohibited.

If anyone have a particular or original experience on the use of these materials, thanks for giving us some informations. We must say that the database will not be used as a guideline but only as an information base which could enable engineers to have an idea of what is possible or unrealistic to do.

Thanks.

RE: Soils containing organic matter

I am in Canada, and as a general rule in the jurisdictions I have worked, soils for road building (including embankment) are to be free of organic materials.

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