Tabby Concrete
Encyclopedia
Tabby is a type of concrete
Concrete
Concrete is a composite construction material, composed of cement and other cementitious materials such as fly ash and slag cement, aggregate , water and chemical admixtures.The word concrete comes from the Latin word...

 made in the seventeenth century, by burning oyster
Oyster
The word oyster is used as a common name for a number of distinct groups of bivalve molluscs which live in marine or brackish habitats. The valves are highly calcified....

 shells to create lime, then mixing it with a slurry of water, local sand and broken oyster shells.
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