Problem
In their composition and mechanism of action, how do the super plasticizers differ from the normal water-reducing admixtures? Addition of 1 to 2 percent of a normal water-reducing agent to a concrete mixture may cause segregation and severe retardation. These effects do not take place in the super plasticized concrete. Explain why.
The response should include a reference list. Double-space, using Times New Roman 12 pnt font, one-inch margins, and APA style of writing and citations.