▎ 摘　　要

NOVELTY - Concrete material with phase change heat storage function comprises 146-161 pts. wt. water, 103-118 pts. wt. silicate cement, 48-56 pts. wt. silicon ash, 175-193 pts. wt. fly ash, 57-72 pts. wt. slag powder, 883-975 pts. wt. quartz sand, 883-975 pts. wt. stone, 1064-1203 pts. wt. water reducing agent, 4.3-5.9 pts. wt. polyvinyl alcohol fiber, 7.6-9.3 pts. wt. graphene oxide, 1.0-1.7 pts. wt. solid phase change powder material, where the solid phase change powder is composed of normal paraffin wax coated on modified silicon dioxide grafted graphene oxide, and modified silicon dioxide is ferric nitrate, 3-amino propyl triethoxy silane modified to obtain the silicon dioxide. USE - Used as concrete material with phase change heat storage function. ADVANTAGE - The concrete material: has phase change heat storage function, reduces the heat conductivity coefficient and heat insulation temperature rise of the concrete material; has good heat storage effect; improves the compressive strength and anti-bending strength of the concrete material. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for preparing concrete material with phase change heat storage function comprising taking above raw material of the concrete material, uniformly mixing the water and water reducing agent to obtain the premix a, mixing silicate cement, silicon ash, fly ash, slag powder, quartz sand, stone, and stirring uniformly, then adding premix a, continuously stirring and mixing uniformly, then adding polyvinyl alcohol fiber, graphene oxide, continuously stirring and mixing uniformly, then adding solid phase phase change powder, continuously stirring and mixing uniformly to obtain the concrete material.