Performance evaluation of eggshell ash in high volume rice husk ash cement mortar: Pore refinement, early strength gain, durability performances and machine learning application

Key Points

• Enhanced durability and early strength observed with eggshell ash in mortar mixtures, indicating superior performance.
• A 15% increase in early strength was noted with the inclusion of eggshell ash compared to conventional mixtures.
• Assessment using machine learning approaches helped analyze the effects of eggshell ash on properties of cement mortar.
• Potential for sustainable building materials is highlighted, but further studies should include larger sample sizes for validation.