Concrete masonry unit

Concrete masonry unit

Precast concrete block used to build walls. It has hollow cores that can be filled with concrete onsite for additional reinforcement. The use of stronger, more lightweight types of concrete such as autoclaved aerated concrete is popular in the manufacture of these units.

Illustrated Dictionary of Architecture Copyright © 2012, 2002, 1998 by The McGraw-Hill Companies, Inc. All rights reserved

concrete masonry unit

A block or brick cast of portland cement and suitable aggregate, with or without admixtures, and intended for laying up with other units as in normal stone masonry construction. Also see A-block, breeze block, cinder block, concrete block, concrete brick, etc.

McGraw-Hill Dictionary of Architecture and Construction. Copyright © 2003 by McGraw-Hill Companies, Inc.