Summary of research status of phase change concrete

The phase change material (PCM) absorbs or releases heat through its own phase change, so as to achieve the function of temperature control or temperature adjustment. At present, the building composite phase change material composed of phase change material and base material has become one of the research hotspots of building green materials. Phase change concrete made by mixing phase change materials into ordinary concrete through various methods has the advantages of energy saving, environmental protection, temperature control, etc. However, due to the special properties of phase change materials, this field still faces many key problems, such as phase change the composite method of materials and ordinary concrete, the mechanical properties and economy of phase-change concrete limit its application in the construction field. This article briefly summarizes the current situation of the preparation, performance research and application of phase change concrete, and puts forward the outlook.