Lots of styles and colors of concrete pavers. (Belgard, Orco & Angelus pavers ). An interlocking concrete paver is a pre-cast piece of concrete or brick commonly used in exterior hardscaping applications. Developed in Europe and introduced into the United States in the early 1970s, interlocking concrete paving stones offer an alternative to plain concrete or asphalt.
Installed over a compacted stone sub-base and a leveling bed of sand, concrete paving stones can be used for walkways, patios, pool decks and driveways and airport or loading docks. Pressing the dry concrete-mix into moulds rather than pouring a wetter mix allows for their 8000 psi compressive strength, making concrete paving stones a more durable choice than clay bricks or poured-in-place concrete. Clay pavers have an advantage with resistance to fading from the sun and deterioration from long term exposure to the elements. They also do not require a seal coat to prevent staining, unlike the concrete paver. Because clay pavers are fired, the pores of the paver are closed, therefore creating an almost non permeable surface. Their main disadvantage is color spectrum. They are a natural material so colors are limited. Concrete on the other hand has a limitless color spectrum when using white portland cement and pigments.