Abstract
The rheology of quick-setting grout during the phase transition from fluid to solid is a key factor for consideration in grouting diffusion design. In this paper, cement-sodium silicate grout (CS grout) was used in the experiment as a typical quick-setting grout. The rheological properties of quick-setting grout during the entire phase transition period, including phase transition time, grout viscosity, and yield stress, were investigated. The influences of water-cement mass ratio (W/C mass ratio) and cement-sodium silicate ratio (C/S volume ratio) on rheological properties of quick-setting grout were analyzed. Results show that gel reaction process of CS grout can be divided into three stages: fluid phase, fluid–solid phase, and solid phase. Among them, shear stress of CS grout increased rapidly with phase transition from fluid to fluid–solid state. The rheological constitutive relation of CS grout always belonged to the Bingham model with W/C mass ratio ranging from 0.8 to 2.0 and C/S volume ratio ranging from 1 to 3. A rheological model of CS grout was presented, among which the relationship between rheological parameters and reaction time is expressed by exponential functions.
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.
