Thermal performance of cement wall containing phase change material consisting of paraffin and grout were studied.Energy saving effect and feasibility of phase change material walls were studied by comparison with traditional walls.The surface temperature of phase change wall is lower than that of common wall.The temperature changes more gently and the temperature fluctuation is less.The thermal flow via phase change wall is far less than that via common wall,and changes gently.Thermal fluctuation is less,a...