Abstract: The temperature cracks of the concrete aroused more and more people's concern, the phase change concrete is a new way to solve the concrete crack.On the basis of analyzing the reason of concrete temperature crack, the design thinking of the phase change temperature control of concrete was putted forward and the composite phase change materials for phase change concrete were reviewed.At last, the performances of phase change concrete were summarized, and analyzed the current existing problems, and the future trend was forecasted.

Key words: concrete;phase change material;temperature crack;temperature control