base course

(redirected from Aggregate Base Course)
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base course

[′bās ‚kȯrs]
(building construction)
The lowest course or first course of a wall.
(civil engineering)
The first layer of material laid down in construction of a pavement.

Base course

The lowest course on a masonry wall or pier, may also be part of the footing.

base course

1. A foundation or footing course, as the lowest course in a masonry wall.
2. A layer of selected material of planned thickness, constructed on the subgrade or subbase for the purpose of serving one or more functions such as distributing load, providing drainage, minimizing frost action, etc.
3. The lowest layer in a pavement construction.

base course

The layer(s) of a specified material of designed thickness placed on a sub-base or subgrade to support the surface course. The base course and subgrade are structural elements of the pavement. In conjunction with the overlying asphalt surface, their purpose is to distribute traffic wheel loads over the whole foundation. Also called a base.
References in periodicals archive ?
This includes the installation of aggregate base course, a reinforced concrete foundation, miscellaneous asphalt, traffic control, and other incidental items as shown in the specifications.
129 includes the construction of approximately 993 LF of 10" PVC sanitary sewer, 4 (four) 6" PVC sanitary sewer services, 3 manholes, pavement removal, aggregate base course, HMA N50 pavement and all restoration work, complete in place.
This work consists of grading and surfacing a combined total of approximately 4,100 linear feet of roadway using a 2 HMA surface course (Type C) and 6 graded aggregate base course.
mechanical dismantling of stone aggregate base course thickness.
Grading, storm sewer, aggregate base course, hot mixed asphalt pavement, Portland cement concrete