Simple Penetration Test for Sedimentary Rocks
@inproceedings{Ida1958SimplePT, title={Simple Penetration Test for Sedimentary Rocks}, author={Kazuyoshi Ida}, year={1958} }
Simplified penetration-test shows the relative value of consolidation for sedimentary rocks as well as soil. This method is to measure the press-mark which is made by falling some metal instrument (cone, awl or steel ball) on the horizontal surface of rocks, and is available for the geological field-works and core-tests.