Soil can be as corrosive as any other environment.
Factors affecting the anodic and cathodic polarization characteristics of metals in soil are:
- Porosity/ aeration
- Electrical conductivity or resistivity
- Dissolved salt content
- Water retention/ moisture
- pH/ soil acidity
Do you need help to characterize soil corrosivity on your site and to get corrosion advice for structures which need to be (partially) buried? Endures corrosion experts can offer you the complete package.
Based on laboratory investigations (e.g. following DIN50929-3 – see table) we can characterize your soil type and the aggressiveness of the environment for a metal structure which will be (partly) installed for a specific lifetime in the soil. On request we can advise on how your structure can be protected (e.g. coatings, metallization, cathodic protection) for the planned lifetime. Getting corrosion advice upfront prior to installing the structure will help you to prevent unplanned failure or maintenance costs after installation.
Together with our sister company OCAS we can also offer long term outdoor exposure tests on their outdoor exposure site. Three pits with 3 different soil types are available to test various materials (protected/ unprotected) while parameters such as pH, texture, redox potential are monitored.
Furthermore, we are conducting microbiologically influenced corrosion (MIC) investigations in sediments. Are you active in geotechnical surveys for example for the offshore wind market and you are looking for someone who can fill in the MIC work? Please contact us!
During the past years we worked closely together with different geo-consultant agencies and collected a lot of experience in offshore sampling campaigns, designed protocols for appropriate storage and transport of samples and we carried out the MIC related laboratory work.
We have a fully equipped microbiological laboratory and we can quantify MIC relevant microorganisms (growth & DNA based techniques) in water or sediments. Moreover, we can correlate these findings with a potential MIC risk based on the metabolic activity and weight loss determinations of specific materials exposed to the environment. On request, we can also test the effects of different protection techniques such as coatings, metallization or cathodic protection on MIC in customer specific in-situ or laboratory set-ups. These investigations allow us to define the possible MIC risk. Based on this, adequate protection is identified to ensure its planned lifetime. At the same time, costly overprotection of your structure can be avoided.
Why contact us? We are one of the leading companies combining MIC investigation and risk assessment with corrosion advice in one package. Having already been consulted for more than 20 planned offshore wind farms in the EU, our expertise is built on customer’s needs.