binder course

binder course

[′bīn·dər ‚kȯrs] (civil engineering) Coarse aggregate with a bituminous binder between the foundation course and the wearing course of a pavement.

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.