Concrete can be classified in many ways. For the majority of applications, the following headings are applicable; 

 – reinforced, 
 – unreinforced, 
 – lightweight, 
 – heavyweight, 
 – prestressed, 
 – and air entrained concrete.

Where the characteristics of a concrete need to be modified beyond these normal types, specialist additives, admixtures, cements and aggregates can be used to enhance or the provide the specified properties.