Liquid-solid dual-phase expansion behavior and strength characteristics of expansive backfill

Key Points

• The study demonstrates significant dual-phase expansion characteristics of expansive backfill, highlighting its mechanical properties and performance.
• Strength characteristics improve under various conditions, showing up to a 25% increase in compressive strength.
• Observational analysis utilizing laboratory experiments on expansive backfill samples provides comprehensive insights into liquid-solid behavior.
• Understanding these properties supports better engineering practices for construction and stabilization materials.