Views: 23 Author: Sam Lee Publish Time: 2019-02-28 Origin: Site
Diethanolisopropanolamine (DEIPA85%) has similar or comparable basic characteristics-dispersibility compared with triisopropanolamine and triethanolamine in cement and cement concrete additives, but its comprehensive performance has obvious advantages. According to the statistical results, under the same conditions, the early strength is higher or lower than that of triethanolamine, and the late strength is much higher than that of triethanolamine. The early strength is much higher than that of triisopropanolamine, and the later strength is lower than that of triisopropanolamine. Its specific characteristics are as follows:
1. It has better adaptability and can be applied in cement grinding aids. It can also be applied in cement concrete, which can be applied in low-grade cement, which can stimulate early strength, reduce the use of clinker, and can be applied to high. In the numbered cement, both the early and late strengths are improved, and the strength of the cement is increased, and the cement dispersion performance is excellent.
2. Improve early performance, diethanolisopropanolamine has excellent early strength properties, but does not significantly shorten the setting time as triethanolamine, and is sensitive to the addition amount, which is softer for early cement hydration. .
3. Late enhancement performance, diethanolisopropanolamine is also excellent in its later enhancement performance, which is significantly ahead of triethanolamine. Compared with triisopropanolamine, it is comparable in medium and low grade cement, but at high label. The cement is especially in the PI.PII type Portland cement, and the late strength is lower than that of triisopropanolamine.
Diethanolisopropanolamine, triisopropanolamine and triethanolamine used in cement and materials have similarities and differences based on their structure, and have their own distinctive features. Therefore, in different occasions, we can develop strengths and avoid weaknesses to meet the different needs of the application side and send back large technical benefits.