Phase change energy storage geopolymer concrete and preparation method thereof

The invention relates to phase change energy storage geopolymer concrete and a preparation method thereof. The concrete comprises the following raw materials: 210-220 parts of fly ash, 20-30 parts of rice hull ash, 20-30 parts of desalted sea sand, 20-30 parts of phase-change geopolymer stone, 20-30 parts of an alkaline activator, 20-30 parts of phase-change material capsules, 20-30 parts of bagasse ash and 20-30 parts of waste glass powder according to a single-square dosage ratio (kg/m < 3 >). 125 to 140 parts of rice hull ash; 750 to 950 parts of desalted sea sand; 800 to 900 parts of phase change geopolymer stone; 140 to 180 parts of an alkali activator; 5 to 100 parts of phase change material capsules; 25 to 30 parts of bagasse ash; and 20-30 parts of waste glass powder. The prepared phase change energy storage geopolymer concrete has high mechanical properties and excellent thermal insulation performance, can be used in the fields of structural systems of buildings, external wall thermal insulation mate