Supplementary Data for: Sodium silicate grouting: mechanisms, environmental impacts, and research directions.

This dataset contains a comprehensive summary of key studies that underpin the current scientific understanding of sodium-silicate grouting in geotechnical engineering. It serves as the foundation for a comparative analysis presented in the associated review paper. The data documents the evolution of silicate research over several decades, summarizing principal mechanistic, chemical, hydraulic, and mechanical insights. The dataset is organized to highlight:
Diverse Grout Formulations: Details on inorganic hardeners and organic activators.
Mechanistic Insights: Summaries of gelation kinetics, polymerization, and the impact of pH and temperature on the sol-gel transition.
Engineering Properties: Data on unconfined compressive strength (UCS), shear behavior, creep, and permeability reduction in various soil types, including sands, silts, and loess.
Environmental & Durability Factors: Assessments of syneresis (shrinkage and water expulsion), organic leaching, and long-term chemical stability in saline or contaminated environments.
Monitoring Technologies: Innovations in real-time diagnostics using Electrical Resistivity Tomography (ERT).
Researchers can use this consolidated dataset to benchmark new grout formulations or to support meta-analyses regarding the sustainability and performance of chemical grouting in infrastructure projects.