Cone penetration test

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Science and technology

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What Wikipedia says

The cone penetration or cone penetrometer test (CPT) is a method used to determine the geotechnical engineering properties of soils and delineating soil stratigraphy. It was initially developed in the 1950s at the Dutch Laboratory for Soil Mechanics in Delft to investigate soft soils.

Excerpt from the Wikipedia article “Cone penetration test”, under the CC BY-SA 4.0 license. Read the article on Wikipedia

Image: The original uploader was Basar at English Wikipedia., Public domain, via Wikimedia Commons.