关键词: 相变材料;抗冻性;水泥基材料;冻融破坏

Abstract: Freeze-thaw damage is one of the most important factors affecting the durability of cement based materials.Phase change of the liquids in cement based materials is the essential cause of frozen damage . Using the phase change materials ( composite phase change materials ) to improve of frost resistance of cement based materials are reviewed and summarized .In particular , the possible mechanisms for frost resistance improvement are reviewed .The problems and potential solutions to improve the frost resistance of cement based materials by phase change materials are highlighted .

Key words: phase change material;frost-resistance;cement based material;freeze-thaw damage