This image was acquired from
wikimedia. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Keywords from Image Description:
FMIB Crosssection of pile showing thin treatment through which Xylotrya penetrated to interior of pile.jpeg check categories September Crosssection of pile showing thin treatment through which Xylotrya penetrated to interior of pile Subject Piling Civil engineering Weathering Tag Coasts Cite book Report on the San Francisco