Multi-scale synergistic enhancement mechanism of nano-silica: Research on improving the durability of aeolian sand concrete under chloride salt erosion-freeze-thaw coupling effect

Key Points

• Durability of aeolian sand concrete improves significantly with nano-silica under chloride salt erosion conditions—showing potential for prolonged service life.
• Key evidence indicates a notable increase in resistance to freeze-thaw cycles, enhancing overall material performance.
• Assessment using laboratory tests examines the synergistic effects of nano-silica and environmental stress factors on concrete stability.
• Results highlight the importance of optimizing nano-silica integration in concrete formulations to withstand extreme weather conditions.