Main types of early strengthening agents

1. Chloride
Potassium chloride, sodium chloride, lithium chloride, amine chloride, calcium chloride, zinc chloride, tin chloride, and aluminum chloride all have good early-strength effects, usually Calcium chloride is often used, which has good effect and low cost. Other halogen compounds can also be used as early strengthening agents such as sodium fluorosilicate, potassium bromide, etc.

2. The widely used early strength agents of sulfate and thiosulfate include sodium sulfate (Yuanming powder), Glauber’s salt, calcium sulfate (gypsum), aluminum sulfate, thiosulfate yellow (Haibo), Calcium thiosulfate, potassium aluminum sulfate, potassium sulfate, etc.

3. Nitrate and salinate

Among the salinates, sodium nitrate, potassium nitrate, and calcium nitrate all have good early strength properties.

Sodium nitrite and calcium nitrite in nitrite are often used as antifreeze early strength agents. Potassium nitrite has also excellent early strength properties of concrete, but is rarely used.

4. Other inorganic salt early strength agents

Potassium carbonate is used as an early strength agent due to its outstanding early strength and coagulant properties. In addition, sodium chlorate and sodium metachlorate can also be used as early strengthening agents.

5. Water-soluble organic compounds

The more commonly used concrete early strength agents are: triethanolamine, triisopropanolamine, sodium formate, calcium formate, sodium acetate, propionic acid Calcium, etc., but are often used as complex acid and other early strengthening agents.

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