Antifreeze performance
Antifreeze concrete is a substance that hardens at negative temperatures, achieves expected performance under specified curing conditions, and prevents moisture in the material from freezing at low temperatures. Ensure the normal construction of concrete under negative temperature and reduce the freezing point in the concrete mixture. It can be combined with water-reducing agent, air-entraining agent, etc. to achieve better antifreeze effects. Used for various concrete projects and during construction in cold seasons.
Makes concrete hydrate normally in a negative temperature environment from 0℃ to -15℃; lowers the freezing point and improves the early strength of concrete.
Classification of antifreeze
Antifreeze can be divided into strong electrolyte inorganic salts (chlorine salts, chlorine salt rust inhibitors, chlorine-free salts), water-soluble organic compounds, organic compounds and Inorganic salt compound and compound antifreeze.
It is divided into two types: freezing point lowering type and surfactant type. Those that lower the freezing point include low-carbon alcohols, glycols and amides. Surfactant types can form a hydrophobic absorption film on the surface of materials, such as acidic phosphate ester amine salts, alkyl amines, fatty acid amides, organic acid esters, alkyl succinimides, etc. For example, if it is mixed into concrete for winter construction, it can harden the concrete at negative temperatures and reach sufficient anti-freeze strength within the specified time.
Can be made into powder or liquid. It is used to prevent frost swelling damage caused by concrete construction under negative temperatures in winter. Ensure normal construction of concrete under negative temperatures. Its main ingredients are sodium nitrite, carbonate, calcium chloride, calcium nitrite, urea, ethylene glycol, etc. They lower the freezing point in concrete mixes. It can also be combined with water-reducing agent, air-entraining agent, etc. to achieve better antifreeze effects.
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