Can Thermally modified wood be used when constant ground contact is unavoidable?

Research has shown that when thermally modified wood is kept in constant contact with the ground it does not decay. However, due to the chemical processes that occur in wood kept in constant contact with the ground, there is some lose of strength. The research being done on thermally modified wood is ongoing, as not everything is yet known. For the time being it is not recommended to maintain constant ground contact when using thermally modified wood.