Concrete Block : A hollow concrete 'brick' often 8"x8"x16" in size. Often used in low rise commercial and some residential construction. The original design and use is attributed to the architect Frank Lloyd Wright
Frank Mayhue, Home Building Manual, Construction Glossary from Home Building Manual, USA 1999. http://www.homebuildingmanual.com/Glossary.htm, (Home Bulid - Amer) {518}
Complete Design, Inc. (Construction Design Specialists), Dictionary of Construction Terminology, Washington, USA 2015. http://completedesign.cc/client-resources/dictiona ry-of-construction-terminology, (Const - Amer) {836}