Freeze-thaw resistance and optimal service temperature range of low-temperature phase change lightweight aggregate concrete

Key Points

• Freeze-thaw resistance was enhanced in lightweight aggregate concrete, indicating improved durability.
• Concrete strength remained stable across the optimal temperature range, suggesting favorable conditions for use.
• Assessment using experimental analysis of different concrete mixtures tested under freeze-thaw scenarios highlights material performance.
• These findings support the viability of using phase change materials in low-temperature environments for durable concrete applications.