The adaptability of concrete admixture and cement involves the knowledge of cement chemistry, polymer material science, surface physical chemistry, electrochemistry and so on.
The purpose of using admixture is to improve the performance and workability of new concrete, mortar and cement mortar, reduce water consumption, and shorten or extend the setting time according to the actual construction needs, reduce landslide losses, improve performance, improve the strength and durability of concrete, reduce reinforcement corrosion, reduce expansion damage and so on. After years of development and practice, concrete admixture has been greatly improved, more varieties, more extensive adaptability, but at the same time there are shortcomings. From the point of view of engineering use, the admixtures with the same type and dosage have different effects on different cement varieties; Due to the different environment and time period, the fluidity of cement slurry of the same type of cement also varies from time to time, and even the bleeding situation and setting time are also different. Therefore, admixtures can be deployed conveniently and quickly according to the actual situation of the site and the site environment. In the production process, cement enterprises should try to improve the quality of cement, in order to avoid the problem of concrete admixtures caused by the quality of cement.
