Brief Introduction of Hydration Heat Regulating Materials and Hydration Temperature Rise Inhibitors
Keywords
Hydration heat control material, hydration temperature rise inhibitor, corn starch, dextrin
During the hydration process of concrete, due to its own hydration reaction, a large amount of hydration heat will be generated; if the internal heat of concrete cannot be released in a short time, it will have adverse effects on the later stage of the concrete material, such as thermal shrinkage. crack. In view of this, the heat of hydration inhibitor formed to regulate the heat of hydration of concrete can be applied to concrete materials.
Hydration heat regulating materials, also known as hydration temperature rise inhibitors, are currently mainly based on dextrin materials formed by modifying corn starch. The reaction mechanism is as follows: starch dextrin material has high molecular weight characteristics, so it can be adsorbed on the surface of cement particles, thereby delaying the hydration process. At the same time, this material can also be adsorbed on the surface of the hydration product to suppress and reduce the generated temperature.
