asphalt binder course
binder course, binding course
1. In asphaltic concrete paving, an intermediate course between the course base and the surfacing material; consists of intermediate-size aggregate bound by bituminous material.
2. A row of masonry units laid between, and used to bind, an inner and an outer wall.
McGraw-Hill Dictionary of Architecture and Construction. Copyright © 2003 by McGraw-Hill Companies, Inc.