Tabby is composed of the lime from burned oyster shells mixed with sand, water, ash, and other shells. As far back as the 1600s, Spanish and English settlers used tabby to build their homes and other structures, and to pave their roads, throughout the coastal Carolinas, Georgia, and Florida.

What is tabby wall?

Tabby is a type of concrete made of equal proportions of lime, sand, shells, and water, along with incidental quantities of ash. It is molded into various shapes, most frequently walls, and originally was covered with a layer of stucco.

Is tabby concrete waterproof?

Concrete is a ubiquitous building material consisting of aggregate bonded together by cement. It’s an inexpensive, durable and waterproof building material strong in compression with strength in flexion commonly added through internal steel mesh. …