Abstract
Rock samples of quartz diorite saturated with two kinds of aqueous solutions were uniaxially compressed with a constant stress rate. The ζ-potentials at the interface between quartz diorite and the two kinds of aqueous solutions, dodecyl trimethyl ammonium chloride solutions and aluminium nitrate solutions, were varied with different concentration of the salts in the solutions. We find the ζ-potential strongly affects the compressive strength of rocks: the compressive strength of the quartz diorite becomes the lowest when the ζ-potential is zero. The Young's moduli of the samples, however, are not significantly influenced by the ζ-potential. The correlation of the strength of rocks with the ζ-potential may be related to the similar observations on indentation hardness, and drilling rate of oxides and rocks. The present observations together with the other experimental studies suggest that the electrostatic field across the solidliquid interface plays an important role in determining mechanical properties of materials.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
