The Microstructure of Hardened Cement Paste and Concrete
Concrete is a composite material created from a mixture of a binder (hardened portland cement paste) and a filler (fine and coarse aggregates). Like any other composite material the physical and engineering properties will depend on the properties of the constituent materials and the interactions between them. In this paper the important features of the structure of concrete at the micron level is described and its influence of bulk material properties is discussed.