The present invention provides a
starch-based hydration
heat regulation material preparation method, which comprises: 1, preparing enzymolysis
dextrin: adding water to
corn starch, blending into
starch milk, placing the corn milk in a boiling water bath, heating to achieve a completely pasting state, cooling to a
room temperature, adjusting the pH value to 5.5-6.5, adding
isoamylase and beta-
amylase, carrying out a
hydrolysis reaction, adjusting the pH value to less than or equal to 3.0 after completing the reaction, inactivating the
enzyme, adjusting the pH value to a
neutral pH value, cooling to a
room temperature, adding
ethanol to the reaction solution, stirring, filtering,
drying the filtrate, and crushing so as to obtain the enzymolysis
dextrin; and 2, preparing the
starch-based hydration
heat regulation material: adding water to the enzymolysis
dextrin prepared in the step 1, blending into a dextrin solution, adding an emulsifier, carrying out an emulsifying reaction, filtering,
drying the
solid, and crushing so as to obtain the finished product. According to the present invention, the method has characteristics of simple process and low cost, and the prepared hydration
heat regulation material has characteristics of stable performance, effective reduction of the
cement hydration heat release rate
peak value, and substantial no influence on the medium-
late stage strength of concrete.