What is the meaning of concrete and not concrete?

precast concrete is delivered to the jobsite finished, not poured on site, floors walls and stairs can all be precast. front steps on homes are often precast.

A concrete noun is one which can be experienced by our senses; we can touch it, or see it, or hear it, and so on. For example: tree, landscape, symphony, dinner, table, horse, cacophony.An abstract...

Originally from concretus (grown together; hardened) concrete means real or solid.

Hydration in concrete provides the means with which to mix Portland cement and the aggregates.

Pumps consist basically of pressure vessels and equipments for supplying compressed air. Concrete is delivered in to the pressure vessel and the vessel sealed tightly. Compressed air is then...