Tabby construction in DC?

We were on a jobsite last month where there was a section of concrete paving. The concrete paving was old and largely broken up. I wasn’t expecting this but I found old mollusk shells in the concrete, similiar to the old tabby walls common on the shores of the Carolina’s.

Tabby concrete construction is a method of building using fired mollusk shells to create a lime cement. Together with the resulting lime binder the shells themselves also were kept in the concrete as an aggregate.

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )

Connecting to %s