Assessment of the properties of polycrystalline rock salt synthesized under nominally dry and wet conditions

作     者：Amirsalar Moslehy Khalid Alshibli Amirsalar Moslehy;Khalid Alshibli

作者机构：Department of Civil and Environmental EngineeringUniversity of TennesseeKnoxvilleTN37996USA 

出 版 物：《Journal of Rock Mechanics and Geotechnical Engineering》 (岩石力学与岩土工程学报（英文版）)

年 卷 期：2021年第13卷第2期

页      面：311-320页

核心收录：

学科分类：08[工学] 080104[工学-工程力学] 0815[工学-水利工程] 0801[工学-力学（可授工学、理学学位）] 

基　　金：This material is based on work supported by the National Science Foundation under Grant No.CMMI-1641054 

主　　题：Halite Rock salt Unconfined compression One-dimensional(1D)compression 

摘      要：Polycrystalline rock salt’s compression is a function of applied stresses,exposure duration to the applied stresses,ambient temperature,and water *** salt’s compressional behavior under different conditions and its effects on the specimens’mechanical properties have been investigated in the ***,the one-dimensional(1D)compression behavior of polycrystalline rock salt at various water contents and how the specimen’s compression at different water contents further affects its physical and mechanical properties are not fully understood *** this study,polycrystalline rock salt specimens were prepared under nominally dry and wet conditions and some of the dry and wet specimens were annealed after the *** relationship between the porosity of the specimens and the logarithm of the applied axial stresses during the 1D compression was found to follow a linear relationship after reaching unique critical porosities of 32%and 37%for the dry and wet specimens,*** and reloading the specimens did not result in any major changes in the porosity of the *** specimens compressed under wet condition showed an average final porosity of 2.6%compared to 6.9%for the dry *** dry and wet specimens that were annealed after the compression exhibited a lower porosity in comparison to the dry and wet specimens,*** compression experiments on the specimens showed dry and wet specimens possess averaged unconfined compressive strengths(σ_(u))of 64.3 and 16.2 MPa,*** decreased σ_(u)of the dry specimens to 39.6 MPa and increased σ_(u)of the wet specimens to 41 MPa.