Cast stone

Today most artificial stone consists of fine Portland cement-based concrete placed to set in wooden, rubber-lined fiberglass or iron moulds.

According to Rupert Gunnis[4] a Dutchman named Van Spangen set up an artificial stone manufactury at Bow in London in 1800.

Another well-known variety was Victoria stone, which is composed of three parts finely crushed Mount Sorrel (Leicestershire) granite to one of Portland cement, carefully mechanically mixed and filled into moulds.

In the wet cast method, to flow material easily on the mold mixture of integrally colored with water and plastic is used.

The ASTM process ensures that interested individuals and organizations representing industry, academia, consumers, and governments alike, all have an equal vote in determining a standard's content.