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dc.contributor.advisorAlsleben, Helge
dc.contributor.authorClayton, Freimuth Reinharden_US
dc.date.accessioned2021-08-10T18:42:54Z
dc.date.available2021-08-10T18:42:54Z
dc.date.created6/23/2021en_US
dc.date.issued2021en_US
dc.identifiercat-7150734en_US
dc.identifier.urihttps://repository.tcu.edu/handle/116099117/48009
dc.description.abstractHardness, defined as resistance to surface deformation, is intrinsic to all materials including sedimentary rocks. The variables controlling sedimentary rock hardness are not completely understood. By understanding these factors, we may better understand related rock strength. Rock strength, defined as a rock’s resistance to brittle failure under loading, is important to many industries such as mining, civil engineering, and petroleum exploration. Rock strength is typically quantified by triaxial load cell tests, which are expensive, time consuming, and require substantial investment in laboratory setup. To circumvent this, other devices have been employed to determine rock strength. For example, the Proceq Equotip Bambino micro-rebound hammer (Bambino) has been used for decades to test the hardness of manmade materials, and to determine strength. Geologic studies empirically correlate Bambino-derived hardness (called Leeb hardness) and uniaxial compressive strength (UCS). However, significant scatter in the data suggest that certain intrinsic (e.g., density) or extrinsic factors (e.g., sample volume) need to be considered for a better correlation. In this study, I examined relations between Leeb hardness and UCS values, accounting for properties such as: lithology, bulk mineralogy, water loss, volume, density, and effective porosity. Intrinsic properties such as bulk mineralogy, density, effective porosity, and water content correlate with Leeb hardness. Also, sample UCS is related to its density, effective porosity, and mechanical hardness. Ultimately, this study validates previous studies and sheds insight on the controlling properties of a rock’s hardness and strength.en_US
dc.format.mediumFormat: Onlineen_US
dc.language.isoenen_US
dc.relation.ispartofTCU Master Thesisen_US
dc.subjectGeologyen_US
dc.subjectBambinoen_US
dc.subjectGeologyen_US
dc.subjectGeomechanicsen_US
dc.subjectRebound Hammeren_US
dc.subjectSedimentaryen_US
dc.titleDetermining Leeb Hardness And Its Controlling Factors To Assess The Strength Of Sedimentary Rocksen_US
dc.typeTexten_US
etd.degree.departmentDepartment of Geological Sciences
etd.degree.levelMaster
local.collegeCollege of Science and Engineering
local.departmentGeological Sciences
local.academicunitCollege of Science and Engineering
dc.type.genreThesis
local.subjectareaGeological Sciences
etd.degree.nameMaster of Science


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