Ernst ENST-I: aids them in a substantial increase in the early and late strength. Grinding aid was also very effective. Can replace triethanolamine and triisopropanolamine, and there is no side-effects both of them. Among the concrete, replace triethanolamine and triisopropanolamine, add small amount, and compacting concrete is better. Ernst ENST-IIA: In aids them, mainly to improve the early strength. Grinding aid was also very effective. Can replace triethanolamine, triethanolamine while no side effects. Ernst ENST-IIB: In aids them, mainly to improve the late strength, adaptability, the increase of early strength is also very good. Grinding aid was also very effective. Can be substituted triisopropanolamine, while no side effects triisopropanolamine. Adaptability, you can also replace triethanolamine. Among the concrete, replace triisopropanolamine and triethanolamine, add small amount, and compacting concrete is better. Ernst ENST-V: Among the aids to improve the early and late strength. Grinding aid was also very effective. Can replace triethanolamine and triisopropanolamine, and there is no side-effects both of them.