Cement grinding aids TIPA Triisopropanolamine
Triisopropanolamine (TIPA) is a common cement grinding aid and enhancer, belonging to the class of organic amine compounds. It is widely used in cement grinding process, and its main functions are to improve grinding efficiency, reduce energy consumption, and improve the early and late strength of cement.
2. Main components and chemical properties
Chemical name: Triisopropanolamine (TIPA)
Chemical formula: C₉H₂₁NO₃
Molecular weight: 191.27 g/mol
CAS number: 122-20-3
Appearance: Colorless to light yellow transparent liquid or solid (may crystallize at low temperature)
Solubility: Easily soluble in water and alcohols, slightly soluble in ether and benzene solvents
pH value: Alkaline
3. Main functions
(1) Grinding aid
TIPA can be adsorbed on the surface of cement particles, reducing electrostatic attraction and agglomeration between particles, reducing the internal friction of cement, and thus improving grinding efficiency.
Reduce ball mill energy consumption and increase mill hourly output.
(2) Improve cement strength
The early strength has little effect (0-7 days).
Improve late strength (28 days and beyond): TIPA can promote the reaction between C₄AF (tetracalcium aluminoferrate) and Ca(OH)₂, generate more hydration products, and improve late strength.
(3) Reduce the extension of cement setting time
Some grinding aids (such as TEA, triethanolamine) may cause the cement setting time to be extended, while TIPA has little effect and helps maintain the appropriate setting time.
(4) Improve cement adaptability
In cement systems with high admixture content (such as slag cement, fly ash cement), TIPA can improve the hydration capacity of active components, thereby optimizing cement performance.
4. Usage method
Recommended dosage: The dosage of TIPA in cement is usually 0.01% to 0.05% (based on cement mass ratio).
Usage method:
It can be used alone or in combination with other grinding aids (such as ethylene glycol, TEA, etc.) to optimize performance.
It can be added directly to the ball mill or added after being prepared into an aqueous solution.
6. Applicable fields
Ordinary Portland cement
Slag cement, fly ash cement, composite cement
High-strength cement
Cement products that need to improve the later strength, such as prefabricated parts, concrete pipe piles, etc.
7. Precautions
TIPA has a significant improvement in the later strength, but has little effect on the early strength, so the formula needs to be adjusted according to specific needs.
Crystallization may occur in low temperature environments, and it needs to be heated and dissolved before use.
When stored for a long time, it needs to be sealed to prevent moisture absorption and oxidation.
8. Summary
TIPA (triisopropanolamine) is a high-efficiency cement grinding aid with good grinding effect and can significantly improve the later strength of cement. It is suitable for various cement systems. Compared with TEA, it has less effect on cement setting time and is more suitable for cement formulas with higher admixtures.
If you need more detailed usage suggestions or formula optimization, you can tell me the specific cement type and application requirements!
- Brand
- XYDCHEM
- Model
- 4
- Country of origin
- China