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 ?
The County of Maui Department of Public Works made the announcement saying the project includes pavement reconstruction of Baldwin Avenue between Hana Highway and Haliimaile Road with an asphalt concrete, asphalt-treated base and aggregate base course pavement section.
Tenders are invited for work includes approx 4 ea tree root sawing; 1,900 sy parkway excavation; 135 cy roadway excavation; 200 cy removal and disposal of unsuitable material; 200 cy porous granular embankment, special; 85 cy trench backfill; 335 sy sub-base granular material, type c 3"; 3,310 sy aggregate base course type b 8"; 2,900 sy preparation of base; 50 tn aggregate base repair.
2 mi straw mulch; 124 cy riprap grade ii; 5,438 tn aggregate base course class 13; 6 ea type iii barricade; 1 ls clearing and grubbing.
Tenders are invited for the work in general shall consist of pavement resurfacing, pavement reconstruction, hot-mix asphalt surface removal full depth, curb and gutter removal and replacement, pcc sidewalk removal and replacement, hot-mix asphalt surface course, leveling binder, hot-mix asphalt binder course, aggregate base course, preparation of base, aggregate base repair, storm sewer improvements, pavement striping, landscape restoration, and all incidental and collateral work.