The plasticizer and superplasticizer
In oder to understand better ,there is no harmful supposing that plasticizer and superplasticizer are sisters ,someone close to the plasticizer will be more soft,but close to the superplasticizer ,it is "cement"friends, she will make "cement" fluidity and density.
The main difference is superplasticizer could decrease further more water than plasticizer.
Plasticizer also called water reducers;
Plasticizer makes the substance flexible and durable;
Plasticizer improve the plasticity of PVC and water reducer in concrete admixtures.
Superplasticizers are also called high range water reducers.
Superplasticizers are polymer used to prevent partical segregation of suspensions.
Superplasticizers are obviously increase the cement strength