Civilization has continually expanded over the last 2 millennia. Mankind is always on the move for resources as well as places to live, work and play. Good roads are an important factor in this expansion. Without them, it would take longer and cost more to create new homes and amass necessary resources for an expanding population. Many areas of the world have recognized their population's need for good roads.
It is amazing that a handful of small rocks and sand is the basis of providing for this need. Aggregates have become more important than ever in the modern world. They provide the sturdy base necessary to build roads that will wear well over the years. Without them, good roads would be difficult to build and require more maintenance. The presence of aggregates has helped mankind fulfill its ever expanding need for resources and new communities.