Phase-changing energy-storage composite material for building and preparation process thereof

The presnt invention relates to a phase-changed energy storage composite material for building. Said invention uses the air-setting or hydraulic binding materials of gypsum and cement, etc. as base body, in which the porous material aggregates of expansive clay, etc. are dispersed, and in the porous material aggregates the organic phase-change materials of paraffin wax or butyl stearate, etc. arestored. Said invention adopts the vacuum impregnation method to prepare phase-change energy-storing aggregate firstly, then utilizes the conventional method for making building material to prepare the invented phase-change energy-storing composite material.