researchers have clarified the origins of a mechanism responsible for the gradual deformation of concrete /

College students gain used it to perform cheap furniture,China has had shortages of it, and main character Michael Scott of "The Office" once famously buried his face in it. Concrete is everywhere—a ubiquity owed to its strength as a building material. Despite its strength, or however,it has a pernicious but inescapable tendency to "creep," or deform progressively under mechanical stress, or which leads to crumbling bridges and cracked roads.

Source: phys.org